# E Tool vs AI MEMO

The clearest difference is in-app purchases: E Tool at none against AI MEMO's 4. E Tool also leads on iOS requirement (9.0 vs 13.0). AI MEMO's advantage is update cadence (every 5 days vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. AI MEMO sells 4 one-off in-app purchases. E Tool asks for nothing beyond the download.

E Tool ships an update monthly, AI MEMO every 5 days. The most recent releases landed on October 9, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | E Tool | AI MEMO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 5 days** |
| Size | 14 MB | 75 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [建周 李](https://appshunter.io/developer/1282823592) | [Shenzhen Zhen Yi Chuang Xiang Technology Co. LTD](https://appshunter.io/developer/1629372828) |

## What reviewers say

### E Tool

[App page](https://appshunter.io/ios/app/e-tool/id1488424681)

**Features:** macOS Compatibility

**In-app purchases:** none


### AI MEMO

[App page](https://appshunter.io/ios/app/ai-memo/id6736560813)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Package 1-100 minutes | $5.99 | one-time |
| Package 2-200 minutes | $9.99 | one-time |
| 套餐3-500分钟 | $19.99 | one-time |
| Package 4-1000 minutes | $29.99 | one-time |


## Frequently asked questions

### Is E Tool free?

E Tool is free to download, with no in-app purchases.

### Is AI MEMO free?

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

### Do E Tool or AI MEMO have ads?

Neither E Tool nor AI MEMO shows ads.

### Which is updated more often, E Tool or AI MEMO?

E Tool ships an update monthly, and AI MEMO every 5 days. Most recently, E Tool was updated on October 9, 2026 and AI MEMO on October 11, 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.*