iHour vs Calflow
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
iHour
Plan and track your time spent on developing habits and mastering skills. Set daily reminders, use a countdown timer, and plan up to ten years ahead. Unlock achievements to stay motivated on your journey to mastery.
- Daily activity tracking
- Long-term planning (up to 10 years)
- Daily reminders and countdown timer
- Progress statistics and visualization
- Over 80 unlockable achievements
- Cloud synchronization
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"iHour" helps you plan & track your time spending on habits. You can record things like Play Guitar, Read Book, Coding, Running etc. The app supports daily reminder, countdown timer, up to 10 years long-term planning. Special designed Achievements help you achieve your goal. 10000 Hours to Master a Skill. =Special Feature= · Daily Tracker: Record your daily activities by hours & minutes · Cloud Sync · Task Planner & Reminder · Time Statistics: Visualize your efforts · Achievements: 80+ Achievements are waiting for you · Share with your friends —————— About the In-App Subscription: We provide "iHour Pro · Monthly Membership" for $0.49 / month. Your subscription will be billed through your Apple ID account after purchase. Subscription automatically renews unless you cancel it at least 24 hours before the end of your billing cycle. Renewal cannot be cancelled. Privacy Policy: https://clover.ly/privacy Terms: https://m.icity.ly/tos
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/
Screenshots
Verdict
The clearest difference is update cadence: Calflow at every 10 days against iHour's every 6 weeks. iHour's advantage is ratings volume (816 vs 131) and iOS requirement (13.0 vs 17.0). On price, rating, review sentiment and ads 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. iHour sells 6 in-app purchases, starting at $0.49 per month and Calflow sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 4.8 for iHour against 4.9 for Calflow. That said, the two scores are not equally well evidenced: iHour has 816 ratings behind it against 131, so its average is the more settled of the two. Written reviews are what separate them: 90% of iHour's written reviews are positive against 89% of Calflow's.
iHour ships an update every 6 weeks, Calflow every 10 days. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.
| Parameter | iHour | Calflow |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (816 ratings) | 4.9 (131 ratings) — better |
| Positive reviews | 90.5% of reviews — better | 88.9% of reviews |
| Number of ratings | 816 — better | 131 |
| Update frequency | Every 6 weeks | Every 10 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Apple Watch | iPhone, iPad, Mac, Apple Watch |
| Requires iOS | 13.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 243 MB | 183 MB |
| Age rating | 4+ | 4+ |
| Developer | iDaily Corp. | Kyovan Ltd. |
Customer experience
iHour
Calflow
User reviews
iHour
From 816 App Store ratingsWhat we love
- 👍 Easy to use
- 🚀 Efficient time tracking
- 💎 Cute and motivating design
- 🎯 Helpful for productivity and focus
- 🎮 Gamification elements are engaging
Room to improve
- 🐛 Occasional performance issues (e.g. overheating, crashes)
- 🔍 Limited customization options
- 📊 Lack of detailed data export/analysis features
- 🔕 Intrusive notifications/sounds
- 🌙 No dark mode option
Calflow
From 131 App Store ratingsWhat we love
- ⏱️ Excellent time tracking with automatic logging
- 📱 Seamless cross-device synchronization (iPhone, iPad, Mac, Apple Watch)
- 📅 Perfect integration with Apple Calendar and Reminders
- 🎯 Comprehensive goal-setting and insights features
- 🧩 Simple, intuitive user interface with low friction
Room to improve
- 🐛 Timer synchronization issues across devices
- 🐛 Confusing insights calculation (double-counting existing calendar events)
- 🐛 Apple Watch complications not fully functional
- 🌙 No dark mode support
- 📱 iPad lacks some features available on iPhone
Bugs and requests
iHour
Reported bugs
3 issues- Apple Watch version has sync issues
- Countdown timer stops when screen is locked
- Time records not always accurate
Requested features
5 requests- Add more detailed time tracking (e.g. down to the second)
- Improve data visualization and analytics
- Introduce a desktop/iPad version
- Allow more customization of UI and sounds
- Implement a dark mode option
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
In-app purchases
iHour
- iHour Pro - Monthly Membership7 Days trial$0.491 Month
- 咖啡$2.99
- iHour Pro$3.99
- 银币$5.99
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- 金币$14.99
- Coffee for Everyone$29.99
Calflow
- Monthly plan$3.991 Month
- Annual plan7 Days trial$12.991 Year
- One-time purchase$37.99







