# 三省 vs StopStop Parental

The clearest difference is update cadence: StopStop Parental at every 2 weeks against 三省's every 6 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. 三省 sells 3 in-app purchases, starting at $2.99 per month and StopStop Parental sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

三省 ships an update every 6 months, StopStop Parental every 2 weeks. Both last shipped on October 1, 2026.

## The numbers

| Metric | 三省 | StopStop Parental |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/id6470999911/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 30 MB | 10 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [嘉达 黄](https://appshunter.io/developer/1708566399) | [芸 胡](https://appshunter.io/developer/1871335720) |

## What reviewers say

### 三省

[App page](https://appshunter.io/ios/app/id6470999911)

This cognitive tool uses cards for recording, reviewing, and self-dialogue to aid memory and clear thinking. It offers flexible input methods, knowledge networking, and visual mind mapping to enhance understanding and reflection.

**Highlights:** Card input (typing & handwriting), Bidirectional knowledge linking, Visual mind maps, Self-dialogue mechanism, Spaced repetition review, Cognitive graph building

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| ThreeTimes - Monthly Plan | $2.99 | per month |
| ThreeTimes - Yearly Plan | $4.99 | per year |
| ThreeTimes - Lifetime Plan | $9.99 | one-time |


### StopStop Parental

[App page](https://appshunter.io/ios/app/stopstop-parental/id6758606122)

**Features:** macOS Compatibility, Family Sharing, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $2.99 | per month |
| Quarterly | $6.99 | per 3 months |
| Annual | $19.99 | per year |


## Frequently asked questions

### Is 三省 free?

三省 is free to download, with in-app purchases available.

### Is StopStop Parental free?

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

### Do 三省 or StopStop Parental have ads?

Neither 三省 nor StopStop Parental shows ads.

### Which is updated more often, 三省 or StopStop Parental?

三省 ships an update every 6 months, and StopStop Parental every 2 weeks. Most recently, 三省 was updated on October 1, 2026 and StopStop Parental 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.*