# 回答 vs EqualMath

The clearest difference is iOS requirement: 回答 at 14.0 against EqualMath's 16.5. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. 回答 sells 10 one-off in-app purchases and EqualMath sells 5 in-app purchases, starting at $1.59 per month. Whichever you choose, the download price is not the number that matters.

回答 ships an update every 2 weeks, EqualMath every 9 days. The most recent releases landed on October 7, 2026 and October 8, 2026 respectively.

## The numbers

| Metric | 回答 | EqualMath |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 9 days** |
| Size | 139 MB | 321 MB |
| Requires iOS | **14.0** | 16.5 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [贞健 解](https://appshunter.io/developer/1414728014) | [洪涛 刘](https://appshunter.io/developer/1831881552) |

## What reviewers say

### 回答

[App page](https://appshunter.io/ios/app/id6450644571)

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 50 回答币 | $6.99 | one-time |
| 55 回答币 | $7.99 | one-time |
| 240 回答币 | $34.99 | one-time |
| 280 回答币 | $39.99 | one-time |
| 380 回答币 | $49.99 | one-time |
| 320 回答币 | $49.99 | one-time |
| 340 回答币 | $49.99 | one-time |
| 400 回答币 | $59.99 | one-time |
| 480 回答币 | $69.99 | one-time |
| 460 回答币 | $69.99 | one-time |


### EqualMath

[App page](https://appshunter.io/ios/app/equalmath/id6749845326)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $1.59 | per month |
| Quarterly Subscription | $3.99 | per 3 months |
| Annual Subscription | $9.99 | per year |
| 手写识别、几何图形旋转与折叠、颜色喷绘 | $2.99 | one-time |
| EqualMath 3 Pro | $34.99 | one-time |


## Frequently asked questions

### Is 回答 free?

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

### Is EqualMath free?

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

### Do 回答 or EqualMath have ads?

Neither 回答 nor EqualMath shows ads.

### Which is updated more often, 回答 or EqualMath?

回答 ships an update every 2 weeks, and EqualMath every 9 days. Most recently, 回答 was updated on October 7, 2026 and EqualMath on October 8, 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.*