Calflow vs Chrono
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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/
Chrono
This intelligent efficiency app integrates calendar management, task planning, and time tracking. It seamlessly syncs with iOS Calendar and Reminders for a fluid schedule. Gain insights into your time usage with efficiency analysis and multi-device synchronization.
- Integrated calendar and task management
- Seamless iOS Calendar & Reminders sync
- Event and habit tracking
- Customizable smart reminders
- Efficiency analysis with charts
- Multi-device synchronization (iPhone, iPad, Mac)
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Chrono是一款集「日程管理」「任务规划」「时间追踪」于一体的智能效率 App。 支持与 iOS 系统的「日历」和「提醒事项」无缝打通，让你的时间安排更加自然流畅。 功能亮点： • 日程与任务一体化：统一时间轴视图，清晰掌控每天安排。 • 系统级同步：与 iOS 日历和提醒事项双向同步，无需重复输入。 • 事件追踪：轻松记录项目进展、习惯或生活瞬间。 • 智能提醒：支持自定义通知，助你不错过任何关键任务。 • 效率分析：通过图表洞察时间使用与习惯趋势。 Chrono，不只是时间管理，更是你与系统完美协作的智能助手。
Screenshots
Verdict
The clearest difference is in-app purchases: Chrono at none against Calflow's 3. Chrono also leads on review sentiment (100% vs 89%). Calflow's advantage is update cadence (every 10 days vs every 3 months) and ratings volume (129 vs 1). On price, rating, ads and iOS requirement 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
Both are free to download. Calflow sells 3 in-app purchases, starting at $3.99 per month. Chrono asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 4.9 for Calflow against 5.0 for Chrono. That said, the two scores are not equally well evidenced: Calflow has 129 ratings behind it against 1, so its average is the more settled of the two. Written reviews are what separate them: 89% of Calflow's written reviews are positive against 100% of Chrono's.
Calflow ships an update every 10 days, Chrono every 3 months. The most recent releases landed on October 14, 2026 and September 29, 2026 respectively.
| Parameter | Calflow | Chrono |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (129 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 88.9% of reviews | 100.0% of reviews — better |
| Number of ratings | 129 — better | 1 |
| Update frequency | Every 10 days — better | Every 3 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, Mac, Apple Watch — better | iPhone, iPad |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 183 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Kyovan Ltd. | 雨辰 沈 |
Customer experience
Calflow
Chrono
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
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- 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
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- 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
Chrono
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Calflow
- Monthly plan$3.991 Month
- Annual plan7 Days trial$12.991 Year
- One-time purchase$37.99
Chrono
No in-app purchases
