# Saohai Library vs Check Answer

The clearest difference is in-app purchases: Saohai Library at none against Check Answer's 4. Saohai Library also leads on iOS requirement (11.0 vs 18.6). On price, ads and device support there is nothing between them.

Both are free to download. Check Answer sells 4 in-app purchases, starting at $0.99 per month. Saohai Library asks for nothing beyond the download.

## The numbers

| Metric | Saohai Library | Check Answer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 4 days |
| Size | 84 MB | 16 MB |
| Requires iOS | **11.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Openserve Co.,Ltd.](https://appshunter.io/developer/479158615) | [Jatuphol Jaturapat](https://appshunter.io/developer/1788860463) |

## What reviewers say

### Saohai Library

[App page](https://appshunter.io/ios/app/saohai-library/id1582154090)

**Features:** macOS Compatibility

**In-app purchases:** none


### Check Answer

[App page](https://appshunter.io/ios/app/check-answer/id6756690225)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited use (1 Month) | $0.99 | per month |
| Unlimited Use (3 Months) | $2.99 | per 3 months |
| Unlimited Use (1 Year) | $4.99 | per year |
| Lifetime Access | $12.99 | one-time |


## Frequently asked questions

### Is Saohai Library free?

Saohai Library is free to download, with no in-app purchases.

### Is Check Answer free?

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

### Do Saohai Library or Check Answer have ads?

Neither Saohai Library nor Check Answer shows ads.

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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.*