# KRON — 'cause Time Flies > Zoomable timeline for life events, calendars, photos, music, and health data. (iPhone/iPad app by Nectelier Inc..) - Source: https://appshunter.io/ios/app/kron/id1482496156 (this page in markdown: same URL + `.md`) - Developer: [Nectelier Inc.](https://appshunter.io/developer/1481311829) - Category: Health & Fitness, Lifestyle - Price: $19.99 - Rating: 4.39/5 from 89 App Store ratings · 33 written reviews indexed - Age rating: 12+ - Requires: iOS 13.0 · 45 MB - Languages: English - Released: 2019-12-13 - Data updated: 2026-06-10 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/kron/id1482496156/reviews.md ## What is KRON? Other apps offer you a bird’s eye view of your calendar and life events, but KRON takes you a step further.  Zoom seamlessly from hour view all the way out to see your entire life’s events from a cosmological perspective. KRON’s stunning holistic view allows you to easily find the patterns and rhythms of your weeks, months, and even years; its intuitive visual presentation will help you spot the times when you’re very busy, as well as the times you have more room to plan new things. Combine and view multiple calendars and streams of data without the clutter and boxed-in design of a conventional desktop calendar, zoom in and out with a simple gesture in KRON, and see the threads of your life in an entirely new way! Designed for your enjoyment and colorful life * Access multiple calendars simultaneously through a single, intuitive interface * Rapidly navigate the photos and video on your iPhone or iPad * Capture and relive your musical listening history * Obtain a retrospective view of your iPhone Health app data history * Stay informed and expand your knowledge through curated, high-quality RSS feeds * New Labels feature to annotate special items on your KRON * Enjoy the new Widgets showing the date and upcoming events * An initial release of the KRON Apple Watch complication - tell us what you think please :-) The calendar, brilliantly reinvented for the iPhone and iPad * Link to and display multiple calendars – iCal, Gmail, Outlook, etc. – simultaneously * Easily navigate forwards and backwards through time using familiar gestures * View proximate events in a convenient list * Add events which automatically synch to your source calendars Navigate your photos and videos * KRONxARC technology facilitates rapid navigation of the photos and video on your iPhone or iPad * Find the shot you're looking for quickly and easily Capture and relive your musical listening history * Easily link to your Spotify and/or Apple Music account and track your musical history * Review what you were listening to at those special moments in your life * See how your tastes have changed…or not [Our blog (https://www.kronarc.com/timespaceblog) offers additional depth on the Music History feature] Retrospectively review your health data * Use the power of KRONxARC visualization to quickly view your health data history * Review multiple health parameters all in one sleek continuous display Stay informed and expand your knowledge * Choose from a wide range of curated, high-quality RSS feeds and track them effortlessly through the KRONxARC interface * Follow news on subjects as diverse as science, entertainment, design, and finance from highly respected sources * Explore recent history from your favorite news source as a word cloud * Find podcasts and Reddits to suit your interests Annotation options * Star an item to make it glow * Add unlimited labels to all items on KRON * New Notes feature to bring everything together What's yours is yours * No ads * No in app purchases * We never collect or sell your data https://www.kronarc.com/terms-privacy User requests and feedbacks are our priority - reach us via support@kronarc.com or https://www.kronarc.com. ## Key features - Zoomable timeline view - Integrates multiple calendars - Navigates photos and videos - Tracks music listening history - Visualizes health data history - Curated RSS feeds - Event annotation and notes ## Recent user reviews (10 of 33) All indexed reviews: https://appshunter.io/ios/app/kron/id1482496156/reviews.md ### 5/5 — Better than I expected for being a year old without updates *2024-10-28* Downloaded this app with a bunch of other calendar apps I was trying out and this one came out on top. It's sad to see the last time it got an update was a year ago but it seems to work without issue despite that fact. Love it! ### 5/5 — Still the Best! Packed full of eye opening features! *2023-07-01, version 3.3.3* I've been using this amazing app for years now. One of a handful of apps that I feel is worth the investment, I mean $ and my time. I find this app mind blowing because it is totally innovative. I've been meaning to write this review for so long. Life happens you know. Anyways, love the meticulous thoughts that went into your design and execution. Amazed by the massive amounts of features. Keep up the high standards and don't let the heartless reviewers distract your path ahead. Love the new Apple Health features and the updated WordClouds - so useful and these bring me joy every single time I use the app. Have a suggestion for your team, recommend more tutorials even though all the features on the app are intuitive already. Posting short video tutorials would expand your app's exposure. My friend passed me your new videos on youtube for your new app, well done! Kudos! ### 5/5 — Excellent app! 👍👍 *2022-05-19* Been a huge Nectelier fan from the beginning. — TITAN is great, but KRON is quite obviously the awesome flagship. The integration capabilities are unexpectedly powerful, while the UI and overall design is absolutely smooth and gorgeous. I love it and use it all the time. My only request: Would you consider making it possible to allow the assignment of custom colors for specific individual events, or via their Tags/Labels? ### 5/5 — Watch complication please *2021-04-05* Can you make a watch complication with the calendars inside? Thank you. **Developer response:** Hello Michsuedg, Thank you so much for your feedback and excellent suggestion. We are on the same wavelength with you and look forward to creating the Apple Watch complication. Please feel free to let us know of any other suggestions, we prioritize user suggestions, and we love pleasing users like you. ### 5/5 — Touchable calendar events and New Plasma, Wow! *2021-03-06, version 2.4* Love my sophisticated KRON! Keep up the fantastic work you guys! The touch screen is a new must have 🙌 Love the new pretty and useful glow option and the new set of adjustments! My fav is setting to the slowest plasma transition speed, reminds me of a lava lamp... the crossfade is so cool. **Developer response:** Thank you kindly, BlinkieG 💗 Your encouraging feedback is extremely motivating for our team 💗 We've got more new exciting and value-add features coming soon, including a new "Mission Control" customization exclusive for KRON users. We are excited to learn more from you. Please feel free to let us know your wish lists - we are here for you and we always prioritize user requests. Thank you again for your heart warming and helpful message. 💗 ### 3/5 — Not ready for prime time *2021-02-15* Interesting concept. Intuitive UI. Crashes when i try to read event details. For 10 bucks one hopes it would stay open. **Developer response:** Hello Mister Wes, May we follow-up further to see how you are enjoying the newest KRON Version 2.4 released last week (on 03Mar2021)? 📲 The items you have previously brought our attention to are very constructive to refining KRON and we have worked hard to address them fully. We look forward to learning more from you to continue refining KRON and offering additional high-end new features for KRON Users. Please feel free to reply further here or email us at support@kronarc.com anytime. Thank you so much again for your support of our fearlessly innovative spirit here at KRON. We work hard to please our users.💗 [previous response] Hello Mister Wes, Great News for you that the (rare) crash you've noted has been fixed in the new Version 2.3, released 2 days ago on 15Feb2021 (We have just received your review here today (17Feb2021), so we hope you've already discovered from your KRON App Update about this fix). KRON's new Version 2.3 brings along a number of helpful user-requested features, we are confident you'll enjoy them. We're grateful you've recognized the unique yet simple concept of KRON. Loving that you're happy with our UI being intuitive - this means a lot to us as we've built KRON and continue to refine it with heart and hard work. Coming back to the crash that's been fixed, it is related to a data loading issue that happens on rare occasions - we indeed have had a hard time reproducing it, but thankfully eventually hunted this bug down and made a bee-line to a fix - thanks to several awesome KRON users like you letting us know, this helps us refine KRON for you as we prioritize user requests immediately, again, your review here is much appreciated. We are here for you and we make KRON for you. Please consider emailing us at support@kronarc.com so we can promptly take action and also have a chance to understand your experience better and provide remedy quickly. As we continue to break new ground and be fearlessly innovative, we will likely have a challenging yet fun road ahead as we continue to build the dream app that we have in mind for you. If there is anything that we could offer you, for example a promo code for your free download of KRON for your family and friends and/or a promo code for our new satellite app TITAN, please email us at support@kronarc.com and we would gladly do our best to make it a more pleasant experience for you. Best Wishes, Your KRON Team :-) ### 5/5 — Love it! Well worth the investment! *2021-01-22* I’ve been using this app KRON for a few months now and loving all the fun moments, so I strongly recommend it. Creative people and innovators who likes fresh ideas will get the most out of this app. I imagine that app lovers like me will recognize it is rare to see the amount of care and thoughtfulness going into an app like this one. I truly wish more apps take this route of high performance and innovative design rather than the quick and easy approach like thousands of apps out there. I will always choose a well conceived and finely tuned product, and honestly, I think we need to encourage high quality apps as a iPhone community. Love the whole bunch of new features like the beautifully displayed Wordles and customizable plasma display settings. I see there is a new review this week; I disagree with the user saying the price of this app is too high, and I got motivated to give my support here. I value hard work and this app KRON clearly is a winner and it is well worth the $10 they ask for. I would even go further to say this app is literally at least 6+ well made apps in one; I feel smart buying it when I spotted it so I’m already getting my investment’s worth and then some. It makes me feel good supporting excellent work. Can’t wait to see what’s next in the upcoming new releases. **Developer response:** Hello Carson11fly, Your tremendous positivity and praise is rocket fuel for us! We work hard and enjoy building KRON with love - it always feel amazing to be appreciated. We look forward to hearing your thoughts on the new features and refinements in the newly released KRON Version 2.3. Best Wishes, Your KRON Team ### 2/5 — Expected alot More, but it's just a cool graphic look *2021-01-19* The app looks amazing visually. But unfortunately falls short. I downloaded it thinking I was going to get the trial version, but I wound to paying $9.99 for it and the Titan bundle. They’re almost basically the same thing. Unless I’m missing something it really just doesn’t rise to the occasion. Like I said visually it’s stunning. But it’s hard to look at a full month's view of the calendar. And like some of the other reviews stated it’s not necessary to have all these newsfeeds. I was expecting a stunning looking, visually intense calendar app to really excel at being a calendar. But unfortunately it doesn't. I hate to post a negative review but I spent money on this one so I have to tell you what I think of it. **Developer response:** Hello Almanist, Thank you for your decisiveness in recognizing KRON's qualities, in downloading the KRON & Titan App Bundle [Hearts], and in giving our innovative platform a spin. It is heart warming that you 'get' our emphasis on the visual aesthetics that we excel at [Hearts]. We are respectful of your initial experience share; indeed, we are invigorated by the upside of evolving KRON to meet your vision of both a "stunning looking, visually intense calendar app" and "to really excel at being a [fantastic] calendar" - the beauty of KRON's creative journey is that we welcome and react swiftly to our user's experience share and suggestions - KRON has been evolving at lightning speed to achieve the highest marks - we tend to go for high hanging fruits such as expanding the capabilities of KRON to not only display Calendars but also News Feeds, Photos & Videos, and Spotify Music Listening history - each of these are major undertakings with the aim to please users like you, to expand your capabilities, and to achieve the goal of KRON being the go-to and must-have Time Navigation device that we and many users envision together. A major challenge exists in all other calendar apps is a feature that KRON excels at - this is the display of multiple sources and simultaneous events - it was natural for KRON to expand to enabling the display of expanded data streams beyond calendars. We again send our gratitude that your helpful feedback highlights a philosophical angle that we've embarked on - from the beginning, we realize that that there are many "Calendar Apps" available for the iPhone community, and many of them are awesome Apps that offer specific "Calendar" functionalities made for the currently familiar calendar user community, the common concepts pertaining to the familiar box-like designs that resemble the paper calendars that hung on the wall traditionally - our goal at KRON is to avoid reinventing the wheel, we elected to offer a high performance, aesthetically stunning new perspective on events of our lives that is natural for the hand-held smart-phone interface; our research indicates that KRON is the only App that displays live events across a arc-shaped continuous timeline, resembling events orbiting in the night sky; KRON is also the only App that displays the rhythms of user's various data streams via the exclusive cloud-like plasma mode, and your team at KRON has meticulously created the "Mission Control" ("..." button) for your real-time customization of the plasma; we went far for users, respecting the value placed on precision and fine control. Circling back to your experience regarding TITAN (KRON's Satellite App), TITAN is designed strictly as a simplified version of KRON with only calendars enabled, therefore, the reduced pricing when TITAN is purchased separately. With TITAN, we continue along the same trajectories of visual aesthetics on designing the refreshing "vista" (background landscape) and designer-color palettes as unique offerings on TITAN. With both KRON and TITAN, users typically would place special calendar(s) (for example, work-related calendars) on TITAN and reserve the "orbitals" of KRON for the viewing of other (for example, personal) calendars, photos, news feeds, and music. This way, these various data streams are available for viewing in their respective spaces in KRON and in TITAN without having to reset the menu to load and reorder the "orbitals"; in brief, for App Bundle users like you, TITAN offers a new "vista" where special calendars will have a special space for quick recalls and in a visually stunning designer user interface. In the creative journey that we are embracing, we anticipate there will be times when new features we bring might not eclipse with our users' expectations, so we whole heartedly encourage precious user feedbacks like yours. This way, your team at KRON will continue to grow the investment ($) you have entrusted in KRON as we continue to zero in on refinements and advancements for you. As you might have already discovered in the new KRON Version 2.3 released earlier this week (15Feb2021), a number of new (again high hanging fruits type) features have been incorporated based on constructive user suggestions like yours. We sure look forward to continue engaging with you as you check out more creative and innovative offerings from your KRON team. We greatly appreciate your feedback, and we hope new iterations on newer KRON versions will improve your experience. Please email us at support@kronarc.com directly for a more expeditious exchange, so we can understand the specifics that will please you the most. Best Wishes, Your KRON Team ### 5/5 — Awesome job *2020-09-12, version 1.6.4* Love this mind tickling app! See it for yourself. ### 5/5 — Excellent app, trustworthy company *2020-09-02* KRON lets users see their calendar events (and other stuff such as photos) in new ways. No need to re-enter the data in KRON directly. KRON provides views that Apple's apps won't ever give you, views that other third-party apps don't have. These timeline views are one of a kind and KRON's design sense is really good. Give this app a try! ## Frequently asked questions about KRON ### What does KRON do? KRON provides a unique, zoomable timeline interface that allows you to view your life events from an hour-by-hour perspective all the way out to a cosmological view of your entire life. It integrates various data streams to help you identify patterns and rhythms in your weeks, months, and years. ### What kind of data can KRON integrate? KRON can integrate multiple calendars (iCal, Gmail, Outlook, etc.), photos and videos from your device, your music listening history from Spotify and Apple Music, your iPhone Health app data, and curated RSS feeds. It also allows for event annotation with labels and notes. ### Is KRON free to use? Yes, the application is free to use. It does not have any advertisements or in-app purchases, offering a completely ad-free experience for its users. ### What devices is KRON compatible with? KRON is designed for iPhone and iPad devices. It also offers an Apple Watch complication for quick access to date and upcoming events. ### How can KRON help me manage my life? KRON helps you manage your life by providing a clear, visual overview of your schedule and activities. Its holistic view allows you to easily spot busy periods, find time for new plans, and understand the flow of your life by integrating calendars, personal media, health data, and interests. ## Version history (last 5 releases) ### 3.3.3 — 2022-11-07 Updated WORDCLOUD feature to incorporate most recent news summaries. WORDCLOUDS beautifully display the most frequently used words in headlines - dynamically populated and scaled by size. Now users can see the year in review WORDCLOUDs for 2020, 2021, and 2022 for a sampling of news feeds from the drop down list. Access WORDCLOUD in the same way as before - by clicking on the "..." button in the main screen and selecting WORDCLOUD. ### 3.3.2 — 2022-04-19 UI and performance enhancement - updated the 'arc' thickness default setting for improved visibility and interactivity ### 3.3.1 — 2021-12-24 New features for visualization and annotation of your precious memory: 1. Enhanced experience in APPLE HEALTH Data display: - new color gradient shows the rhythm of your health rhythm. - automatically adjusted to show per day, per week, per month changes. - a coordinated feel as you transition between time arc "zoom" levels. 2. NOTES - a user requested new feature: - add a new NOTES section in the Menu. - create new notes by clicking the "+" button on the main screen. - write your notes using the keyboard or use the "Mic" icon to record a transcribed version of your precious memories. 3. LABELS button to filter items you've labeled: - click the new label button (with the label icon) on the main screen to filter or selectively view items with a specific label. - the "List View" accessed via the "arrow button" while in filter-label mode is specialized for the filter-label mode. - filtered labels are grouped per month in the "List View" while in the filter-label mode. - clicking the label button toggles between the filter-label mode and normal viewing. 4. Start-up refinement to display "plasma" view then "arcs" for better visual enjoyment. 5. Performance upgrade to speed up data loading time. 6. Bug fixes in the background themes (Light mode, Titan, Callisto) ### 3.3 — 2021-11-25 Updates to Widgets and Apple Health Workouts Display: 1. KRON Widget now displays data for 7 days per KRON relaunch. - previously, this was set to 1 day. - in this new updated version, the calendar date advances for 7 days without relaunching KRON. 2. Apple Health Workouts are now displayed on KRON - Detail Pop-up window per each Workout shows a chart of the recent 30 Workouts. ### 3.2 — 2021-11-12 Refinements and Updates to Apple Health Data display and Annotation features: A. Apple Health Data Display Expanded: 1. Daily Trend at a Glance: -Main “Arc” Display: Color intensity heat map of each hourly Health Data “Arc” based on the daily maximum value. -When zoomed in where the “Beam” is spanning less than 60 minutes, the Summary Section lists the hourly value for each Health Data (see “Notes” before for additional details.) -When zoomed out where multiple days are in the “Beam” of the Main “Arc” Screen, the Summary Section under the “Arc” displays the average per day across the multiple days. 2. Daily Summary Plot in the Detail Pop-up: Daily Detail Pop-up window shows a quick summary followed by a bar chart plot of hourly health data. Horizontal scrolling is activated for the Detail Pop-up for ease of navigating between days. 3. Daily sum or avg. for each Health Data are listed in the List View Screen, for quick continuous vertical scroll across days. (Friendly Reminder: the ListView Screen is accessed via the Main “Arc” Screen by clicking the “->” button or by tapping the header area of the Summary Section.) Notes: -For Active Energy, Exercise Time, Steps, Standing Time, Workouts data - sum or average values (counts or minutes) are displayed hourly on the Arc and displayed daily in the Detail Pop-up. -For Heart Rate data - the beats per minute (BPM) is the unit of display; the average BPM per hour or average BPM per day are calculated based on where the beam is pointed. -For Sleep Analysis - in this initial display implementation, “Asleep” data from Apple Health are displayed where one “Sleep Event” is the grouped data display, and a “Sleep Event” is defined as sleep segments that are separated by no more than 6 hours. B. New KRON Annotation Features: 1. The new Label feature (first introduced in version 3.1.1.) is now available for each health data daily Detail Pop-up. The Pop-ups are accessed via clicking the Health Data in the “Summary” Section under the Arc or by tapping the “Arc” and selecting “View” on the Main Arc View screen. 2. A Label icon is present on the top left of each Pop-up, clicking this brings up the Label Window. 3. Previously created labels can be marked or unmarked for any individual Detail Pop-up by tapping and uncapping, when marked, a check mark icon will appear next to that label in the Label Window. 4. New Label(s) can be created by clicking the “+” icon available in the Label Window. 5. All labels created are automatically added to the “Labels” section, accessed from the menu. 6. Labels are stored on the user’s iCloud. ## Apps similar to KRON | App | Rating | Price | Category | | --- | --- | --- | --- | | [Spokiy](https://appshunter.io/ios/app/spokiy/id1576846400) | — | Free | Health & Fitness | | [LastTimer](https://appshunter.io/ios/app/lasttimer/id1571153200) | 5.0 (11) | $0.99 | Health & Fitness | | [GGL : Program Diet Sehat](https://appshunter.io/ios/app/ggl-program-diet-sehat/id1575312800) | 5.0 (1) | Free | Health & Fitness | | [HITFIT - Group Fitness](https://appshunter.io/ios/app/hitfit-group-fitness/id1569776820) | 4.7 (10) | Free | Health & Fitness | | [SkyCycle](https://appshunter.io/ios/app/skycycle/id1574182760) | 5.0 (53) | Free | Health & Fitness | | [The Fit Indian](https://appshunter.io/ios/app/the-fit-indian/id1569652920) | — | Free | Health & Fitness | ## More apps by Nectelier Inc. - [Titan By KRON](https://appshunter.io/ios/app/titan-by-kron/id1535592606) - [Callisto By KRON](https://appshunter.io/ios/app/callisto-by-kron/id1552231182) - [Luna by KRON](https://appshunter.io/ios/app/luna-by-kron/id1560119525) - [OSO+](https://appshunter.io/ios/app/oso-plus/id1671395260) - [Los OSOs](https://appshunter.io/ios/app/los-osos/id1672750235) All apps by Nectelier Inc.: https://appshunter.io/developer/1481311829 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-10.*