# 多多識字 vs JACKSON E

The clearest difference is in-app purchases: JACKSON E at none against 多多識字's 3. 多多識字's advantage is update cadence (every 4 weeks vs every 7 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 多多識字 sells 3 one-off in-app purchases. JACKSON E asks for nothing beyond the download.

多多識字 ships an update every 4 weeks, JACKSON E every 7 months. The most recent releases landed on September 9, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | 多多識字 | JACKSON E |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 7 months |
| Size | 222 MB | 13 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BEST PICTURE BOOK LIMITED](https://appshunter.io/developer/1563666707) | [Autotoll International Limited](https://appshunter.io/developer/1480334798) |

## What reviewers say

### 多多識字

[App page](https://appshunter.io/ios/app/id1563666705)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月套餐 | $7.99 | one-time |
| 年套餐 | $23.99 | one-time |
| 终身套餐 | $36.99 | one-time |


### JACKSON E

[App page](https://appshunter.io/ios/app/jackson-e-track/id1622720357)

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

**In-app purchases:** none


## Frequently asked questions

### Is 多多識字 free?

多多識字 is free to download, with in-app purchases available.

### Is JACKSON E free?

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

### Do 多多識字 or JACKSON E have ads?

Neither 多多識字 nor JACKSON E shows ads.

### Which is updated more often, 多多識字 or JACKSON E?

多多識字 ships an update every 4 weeks, and JACKSON E every 7 months. Most recently, 多多識字 was updated on September 9, 2026 and JACKSON E on September 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.*