# 识林 vs NDAA

The clearest difference is in-app purchases: 识林 at none against NDAA's 10. 识林 also leads on iOS requirement (11.0 vs 13.0). NDAA's advantage is update cadence (every 3 weeks vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. NDAA sells 10 one-off in-app purchases. 识林 asks for nothing beyond the download.

识林 ships an update every 2 months, NDAA every 3 weeks. The most recent releases landed on October 18, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | 识林 | NDAA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/id1141205370/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 33 MB | 63 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Beijing Shangzhi Hegui Science And Technology Co., Ltd.](https://appshunter.io/developer/1141205369) | [Beijing Intelligent Meeting Solution, Ltd](https://appshunter.io/developer/1403224760) |

## What reviewers say

### 识林

[App page](https://appshunter.io/ios/app/id1141205370)

**Features:** macOS Compatibility

**In-app purchases:** none


### NDAA

[App page](https://appshunter.io/ios/app/ndaa/id1403224761)

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 30 学币 | $4.99 | one-time |
| 68 学币 | $9.99 | one-time |
| 108 学币 | $15.99 | one-time |
| 188 学币 | $27.99 | one-time |
| 288 学币 | $45.99 | one-time |
| 588 学币 | $89.99 | one-time |
| 998 学币 | $149.99 | one-time |
| 1998 学币 | $299.99 | one-time |
| 2998 学币 | $449.99 | one-time |
| 4998 学币 | $799.99 | one-time |


## Frequently asked questions

### Is 识林 free?

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

### Is NDAA free?

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

### Do 识林 or NDAA have ads?

Neither 识林 nor NDAA shows ads.

### Which is updated more often, 识林 or NDAA?

识林 ships an update every 2 months, and NDAA every 3 weeks. Most recently, 识林 was updated on October 18, 2026 and NDAA on October 26, 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.*