# Calflow vs 时间流

The clearest difference is monetization model: 时间流 at free against Calflow's free with in-app purchases. 时间流 also leads on update cadence (every 3 days vs every 10 days). Calflow's advantage is ratings volume (131 vs 4). On price, rating, ads and in-app purchases there is nothing between them.

Both are free to download. Calflow sells 3 in-app purchases, starting at $3.99 per month and 时间流 sells 3 in-app purchases, starting at $0.99 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 — 4.9 for Calflow against 5.0 for 时间流. That said, the two scores are not equally well evidenced: Calflow has 131 ratings behind it against 4, so its average is the more settled of the two.

Calflow ships an update every 10 days, 时间流 every 3 days. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Calflow | 时间流 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.9 (131 ratings)](https://appshunter.io/ios/app/calflow-planner-and-tracker/id6474122188/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/id6777999049/reviews)** |
| Number of ratings | **131** | 4 |
| Positive reviews | 88.9% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Every 3 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 183 MB | 81 MB |
| Requires iOS | 17.0 | **16.2** |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Kyovan Ltd.](https://appshunter.io/developer/1712594394) | [静娴 孙](https://appshunter.io/developer/6777891923) |

## What reviewers say

### Calflow

[App page](https://appshunter.io/ios/app/calflow-planner-and-tracker/id6474122188)

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:** Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly plan | $3.99 | per month |
| Annual plan | $12.99 | per year |
| One-time  purchase | $37.99 | one-time |

**What reviewers like**

- ⏱️ 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

**What reviewers complain about**

- 🐛 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

**Reported bugs**

- 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

**Requested features**

- Dark mode support
- Mac menu bar timer widget
- Multiple simultaneous timers on iPhone
- Larger font size options
- Ability to copy and paste calendar events


### 时间流

[App page](https://appshunter.io/ios/app/id6777999049)

Effortlessly track your daily time flow with minimal input. Quickly start timers for activities, visualize your day's timeline, and understand where your time is spent through insightful statistics. Supports multiple concurrent timers and voice input for activity names.

**Highlights:** Minimalist time tracking, Parallel activity timers, Voice input for activity names, Live Activity and Dynamic Island display, Local data storage, NFC sticker integration

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TimeFlow Pro 月订阅 | $0.99 | per month |
| TimeFlow Pro 年订阅 | $7.99 | per year |
| TimeFlow Pro 终身会员 | $9.99 | one-time |


## Frequently asked questions

### Is Calflow free?

Calflow is free to download, with in-app purchases available.

### Is 时间流 free?

时间流 is free to download, with in-app purchases available.

### Which has better reviews, Calflow or 时间流?

时间流 is rated higher. Calflow averages 4.9 out of 5 from 131 ratings, while 时间流 averages 5.0 from 4 ratings.

### Do Calflow or 时间流 have ads?

Neither Calflow nor 时间流 shows ads.

### Which is updated more often, Calflow or 时间流?

Calflow ships an update every 10 days, and 时间流 every 3 days. Most recently, Calflow was updated on October 30, 2026 and 时间流 on October 28, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*