# Know+ vs ClearMath

The clearest difference is update cadence: ClearMath at every 5 days against Know+'s every 2 weeks. Know+'s advantage is iOS requirement (11.0 vs 17). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Know+ sells 6 one-off in-app purchases and ClearMath sells 2 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.

Know+ ships an update every 2 weeks, ClearMath every 5 days. The most recent releases landed on October 19, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Know+ | ClearMath |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/clearmath/id6670290377/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 5 days** |
| Monetization | — | Free with in-app purchases |
| Size | 71 MB | 15 MB |
| Requires iOS | **11.0** | 17 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Shanghai Knewtopia Technology, Co., Ltd.](https://appshunter.io/developer/1601990393) | [Kunshan Lefan Software Technology Co.,Ltd.](https://appshunter.io/developer/452703256) |

## What reviewers say

### Know+

[App page](https://appshunter.io/ios/app/know-plus/id1601990391)

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 6元即可兑换6金币 | $0.99 | one-time |
| 68元即可兑换68金币 | $9.99 | one-time |
| 88元即可兑换88金币 | $12.99 | one-time |
| 198元即可兑换198金币 | $29.99 | one-time |
| 388元即可兑换388金币 | $59.99 | one-time |
| 998元即可兑换998金币 | $149.99 | one-time |


### ClearMath

[App page](https://appshunter.io/ios/app/clearmath/id6670290377)

This app helps you deeply understand mathematical concepts by visualizing their relationships and connections. It offers guided learning paths, detailed explanations, and practical examples to build lasting knowledge beyond just getting answers.

**Highlights:** Concept Relationship Maps, Hierarchical Tree Structure, Comprehensive Concept Explanations, Guided Learning Paths, Progress Tracking, Mathematician Profiles, AI Explanations

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $12.99 | per month |
| Annual | $99.99 | per year |


## Frequently asked questions

### Is Know+ free?

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

### Is ClearMath free?

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

### Do Know+ or ClearMath have ads?

Neither Know+ nor ClearMath shows ads.

### Which is updated more often, Know+ or ClearMath?

Know+ ships an update every 2 weeks, and ClearMath every 5 days. Most recently, Know+ was updated on October 19, 2026 and ClearMath on October 2, 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.*