# 莽学教育 vs Calflow

The clearest difference is iOS requirement: 莽学教育 at 13.0 against Calflow's 17.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. 莽学教育 sells 2 one-off in-app purchases 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.

莽学教育 ships an update fortnightly, Calflow every 10 days. The most recent releases landed on October 12, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | 莽学教育 | Calflow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.9 (129 ratings)](https://appshunter.io/ios/app/calflow-planner-and-tracker/id6474122188/reviews)** |
| Number of ratings | — | **129** |
| Positive reviews | — | 88.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 10 days** |
| Monetization | — | Free with in-app purchases |
| Size | 20 MB | 183 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Apple Watch** |
| Age rating | 17+ | 4+ |
| Developer | [江苏莽学教育科技有限公司](https://appshunter.io/developer/1680093029) | [Kyovan Ltd.](https://appshunter.io/developer/1712594394) |

## What reviewers say

### 莽学教育

[App page](https://appshunter.io/ios/app/id6447044955)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 48莽学币 | $6.99 | one-time |
| 98莽学币 | $14.99 | one-time |


### 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


## Frequently asked questions

### Is 莽学教育 free?

莽学教育 is free to download, with in-app purchases available.

### Is Calflow free?

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

### Do 莽学教育 or Calflow have ads?

Neither 莽学教育 nor Calflow shows ads.

### Which is updated more often, 莽学教育 or Calflow?

莽学教育 ships an update fortnightly, and Calflow every 10 days. Most recently, 莽学教育 was updated on October 12, 2026 and Calflow on October 18, 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.*