# Cautionary vs 时间流

The clearest difference is price: 时间流 at Free against Cautionary's $0.99. Cautionary's advantage is in-app purchases (none vs 3). On update cadence, ads, device support and iOS requirement there is nothing between them.

时间流 is free to download; Cautionary costs $0.99 up front. 时间流 sells 3 in-app purchases, starting at $0.99 per month. Cautionary asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 days. The most recent releases landed on October 8, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Cautionary | 时间流 |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/id6777999049/reviews)** |
| Number of ratings | — | **3** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 days | Every 3 days |
| Monetization | — | Free |
| Size | 11 MB | 79 MB |
| Requires iOS | 16.4 | **16.2** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [辉章 何](https://appshunter.io/developer/1687027088) | [静娴 孙](https://appshunter.io/developer/6777891923) |

## What reviewers say

### Cautionary

[App page](https://appshunter.io/ios/app/cautionary/id6451156147)

**Features:** Vision Pro support

**In-app purchases:** none


### 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 Cautionary free?

Cautionary costs $0.99, with no in-app purchases.

### Is 时间流 free?

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

### Do Cautionary or 时间流 have ads?

Neither Cautionary nor 时间流 shows ads.

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

Cautionary ships an update every 3 days, and 时间流 every 3 days. Most recently, Cautionary was updated on October 8, 2026 and 时间流 on October 1, 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.*