# AWS Cert Prep with AI vs Yomi酱

The clearest difference is update cadence: Yomi酱 at every 6 days against AWS Cert Prep with AI's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. AWS Cert Prep with AI sells 3 in-app purchases, starting at $3.99 per 7 days and Yomi酱 sells 1 in-app purchase, starting at $0.49 per month. Whichever you choose, the download price is not the number that matters.

AWS Cert Prep with AI ships an update every 2 months, Yomi酱 every 6 days. The most recent releases landed on October 2, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | AWS Cert Prep with AI | Yomi酱 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 days** |
| Size | 49 MB | 112 MB |
| Requires iOS | **14.0.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Jiahao Wang](https://appshunter.io/developer/1792193575) | [Mengyu Wang](https://appshunter.io/developer/6779525656) |

## What reviewers say

### AWS Cert Prep with AI

[App page](https://appshunter.io/ios/app/aws-cert-prep-with-ai-leanify/id6741297971)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan | $3.99 | per 7 days |
| Monthly Plan | $9.99 | per month |
| Yearly Plan(58% OFF!) | $44.99 | per year |


### Yomi酱

[App page](https://appshunter.io/ios/app/yomi/id6792731677)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| YomiChan Plus | $0.49 | per month |


## Frequently asked questions

### Is AWS Cert Prep with AI free?

AWS Cert Prep with AI is free to download, with in-app purchases available.

### Is Yomi酱 free?

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

### Do AWS Cert Prep with AI or Yomi酱 have ads?

Neither AWS Cert Prep with AI nor Yomi酱 shows ads.

### Which is updated more often, AWS Cert Prep with AI or Yomi酱?

AWS Cert Prep with AI ships an update every 2 months, and Yomi酱 every 6 days. Most recently, AWS Cert Prep with AI was updated on October 2, 2026 and Yomi酱 on October 14, 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.*