Comparison

Calflow vs ResizeToS

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Calflow

This app integrates with your existing iOS Reminders and Calendars to help you track how you spend your time. It offers features for daily planning, time tracking, and goal setting, providing insights into your productivity within the Apple ecosystem.

Highlights
  • 2-way sync with iOS Reminders & Calendar
  • Time tracking for reminders and events
  • Time distribution insights
  • Powerful tag system for filtering
  • Goal and habit tracking
  • Apple Health and app usage sync
Features
Read full description

If you’re using Apple Reminders and iOS Calendar/ Google Calendar in your workflow, and you wonder how you spend your time, tasks, daily activities, etc, it’s for you. Calflow is a powerful time-tracking planner based on iOS Reminders & Calendar, helping you keep track of your day and stay productive within the Apple ecosystem. Daily & Weekly Planner ◆ 2-way sync with iOS Reminders & Calendar (Free) ◆ Use Spaces to separate personal and work tasks, helping you declutter your schedule and stay focused Streamline Time-tracking into your Apple Workflow ◆ Track how much time you spend on your Reminders & events: - Reminders: Auto-populate time entries in Apple Calendar - Events: Auto-update your planned event details in Apple Calendar Apple Calendar Time Insights ◆ Also supports Google Calendar ◆ Track your time distribution across day/week/month/year Powerful Tag System ◆ Create smart tags to filter your calendar event entries, and learn about their activity across day/week/month/year ◆ Create groups to analyze time from multiple perspectives Goals, Habits Tracking ◆ Track goals, habits based on your iOS Reminders & Calendars to help ensure your time align with your goals Track anything and sync them to iOS Calendar ◆ Apple Health sync (mindful minutes, sleep time, workout time) ◆ App usage time tracking (via Shortcuts) ◆ Daily activities (via tracker widgets) Need help or have ideas to share? We’re always here: contact@calflow.app Terms of Use(EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://calflow.app/privacypolicy/

About

ResizeToS

Features
Read full description

ResizeToS is the most efficient and intuitive productivity utility designed to batch resize massive amounts of photos on your smartphone by processing entire folders at once. You no longer need to rely on the tedious old method of painstakingly selecting photos one by one just to reduce their file sizes. All you have to do is select the folder you wish to process. The app will automatically scan all the images inside and uniformly scale them down to your desired horizontal resolution. The most significant advantage of this app is its absolute commitment to preserving your precious original photos. Every resized output is strictly saved into a newly and automatically created subfolder within your selected directory. This ensures you can use the app with complete peace of mind knowing your original files will never be overwritten or corrupted. Detailed Feature Overview First the batch processing capability. Without any complicated selection processes you just designate a single target folder and dozens or even hundreds of photos inside it are resized with just a single tap. Second the intelligent scaling system. The app provides convenient presets for the most commonly used resolutions such as 720 1080 1440 1920 and 2560 pixels while also allowing you to input any custom pixel value you need. If an original photo happens to have a horizontal width smaller than your target setting the app is smart enough to prevent pixelation caused by forced upscaling. Instead of passing it through the resizing engine it safely copies the original file exactly as it is. Third customizable file formats and quality control. If your goal is to drastically free up storage space on your device you can select the highly compressed JPG format and fine tune the quality slider anywhere from ten to one hundred. Alternatively if you wish to prevent any loss of visual quality you can choose the PNG format which provides lossless saving and fully preserves image transparency. Fourth perfect metadata preservation. Even when reducing the physical size of the photo the app ensures that your memories remain intact by seamlessly transplanting all crucial EXIF metadata including the original date and time of capture lens parameters and location data directly into the newly generated images preventing any loss of vital information. Fifth intuitive real time status monitoring. Once the conversion process begins a real time log console appears on your screen. The app distinctly displays various statuses such as successfully resized original kept skipped duplicates encountered errors and metadata written using soft easily distinguishable colors. This allows you to grasp exactly how your batch job is progressing at a single glance. Absolute Privacy and Fully Offline Operation Because this app handles your highly private media data security and privacy were our top priorities during development. The application does not contain any network communication modules whatsoever. One hundred percent of the processing and saving happens entirely offline directly within the local storage of your device. The risk of your precious photo data being transmitted to external clouds or servers is fundamentally blocked meaning you can use the app safely in any situation. Supported Languages The app provides comprehensive support for English Korean Japanese Simplified Chinese and Traditional Chinese automatically adapting to your smartphones system language settings. You can also manually switch languages at any time through the in app settings menu. Developer Solution317

Screenshots

Calflow4 screens
ResizeToS4 screens

Verdict

The call

The clearest difference is in-app purchases: ResizeToS at none against Calflow's 3. ResizeToS also leads on update cadence (every 5 days vs every 10 days) and iOS requirement (15.0 vs 17.0). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Calflow sells 3 in-app purchases, starting at $3.99 per month. ResizeToS asks for nothing beyond the download.

UpkeepUpdate frequency

Calflow ships an update every 10 days, ResizeToS every 5 days. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

Scorecard3 real differences · 7 level
Calflow versus ResizeToS: the parameters behind the verdict, then further details
ParameterCalflowResizeToS
PriceFreeFree
Rating4.9 (131 ratings) — better—
Positive reviews88.9% of reviews—
Number of ratings131 — better—
Update frequencyEvery 10 daysEvery 5 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Mac, Apple Watch — betteriPhone, iPad, iPod
Requires iOS17.015.0 — better
Further details — not scored
Size183 MB26 MB
Age rating4+4+
DeveloperKyovan Ltd.jinkyun kim

Bugs and requests

Calflow

Reported bugs

11 issues
  • Timer doesn't sync across devices (iPhone to iPad/Mac)
  • Live Activity not showing on iPad when timer active
  • Apple Watch timers not accessible on other devices
  • Widget display showing only black and white screen
  • Insights double-counting time on existing calendar events
Show 6 more
  • Goals feature sometimes fails to record correctly
  • iPad reminders list not syncing with iPhone
  • Timer in notification center and widget not syncing
  • iPad doesn't show timer notifications in notification center
  • Apple Watch connectivity issues after paid subscription activation
  • Mac and iPad timer not showing when started on iPhone

Requested features

27 requests
  • Dark mode support
  • Mac menu bar timer widget
  • Multiple simultaneous timers on iPhone
  • Larger font size options
  • Ability to copy and paste calendar events
Show 22 more
  • Custom goal cadences (not just daily/weekly/monthly)
  • Daily focus note area (like weekly focus)
  • Hashtag support in notes for better app integration
  • Apple Watch complications
  • Faster widget refresh rates
  • Drag and drop support for weekly plans
  • Collaboration/sharing features
  • Data export to CSV/Excel format
  • URL field for events and tasks
  • Callback URL support
  • Notification/reminder alerts for events
  • Milestone and skill tree features
  • Import data from other time tracking apps
  • Japanese language support
  • Custom day start time for analytics
  • Notebook/note-taking integration
  • Customizable todo background colors
  • Reminders list and tags binding
  • Mac automation scheduling
  • Website usage tracking on Mac
  • Ambient sounds and tick sounds for focus mode
  • Collaborative task management

ResizeToS

Not enough reviews yet to summarise bugs or requests.

In-app purchases

3 purchases

Calflow

Subscriptions2
  • Monthly plan$3.991 Month
  • Annual plan7 Days trial$12.991 Year
One-time1
  • One-time purchase$37.99
None

ResizeToS

No in-app purchases

Questions

Is Calflow free?
Calflow is free to download, with in-app purchases available.
Is ResizeToS free?
ResizeToS is free to download, with no in-app purchases.
Do Calflow or ResizeToS have ads?
Neither Calflow nor ResizeToS shows ads.
Which is updated more often, Calflow or ResizeToS?
Calflow ships an update every 10 days, and ResizeToS every 5 days. Most recently, Calflow was updated on October 30, 2026 and ResizeToS on October 25, 2026.

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