# 懂了 vs SAT圣题库

The clearest difference is in-app purchases: 懂了 at none against SAT圣题库's 10. 懂了 also leads on iOS requirement (9.0 vs 11.0). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. SAT圣题库 sells 10 one-off in-app purchases. 懂了 asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 1.0 for 懂了 against 1.0 for SAT圣题库. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

懂了 ships an update every 5 weeks, SAT圣题库 monthly. The most recent releases landed on October 10, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | 懂了 | SAT圣题库 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/id1173183591/reviews) | [1.0 (1 ratings)](https://appshunter.io/ios/app/sat/id1567728201/reviews) |
| Number of ratings | 1 | 1 |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Monthly** |
| Monetization | — | Free with in-app purchases |
| Size | 175 MB | 43 MB |
| Requires iOS | **9.0** | 11.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [GuangZhou Noobie Internet Technology Co., Ltd.](https://appshunter.io/developer/1173183590) | [Sheng Cai E-books (Wuhan) Co., Ltd.](https://appshunter.io/developer/1448965022) |

## What reviewers say

### 懂了

[App page](https://appshunter.io/ios/app/id1173183591)

**Features:** macOS Compatibility

**In-app purchases:** none


### SAT圣题库

[App page](https://appshunter.io/ios/app/sat/id1567728201)

This app provides a comprehensive question bank for the SAT exam, offering detailed explanations for each question. It supports flexible learning and practice anytime, anywhere, across multiple devices.

**Highlights:** Extensive SAT question bank, Detailed answer explanations, Multiple practice modes, Progress tracking, Keyword search for questions, Automatic错题 (wrong answer) collection, Personalized question generation

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 圣才月卡VIP会员 | $3.99 | one-time |
| 圣才季卡VIP会员 | $9.99 | one-time |
| 88圣才币 | $12.99 | one-time |
| 128圣才币 | $19.99 | one-time |
| 圣才半年卡VIP会员 | $19.99 | one-time |
| 圣才考研半年卡VIP会员 | $19.99 | one-time |
| 168圣才币 | $24.99 | one-time |
| 208圣才币 | $29.99 | one-time |
| 圣才年卡VIP会员 | $29.99 | one-time |
| 圣才考研年卡VIP会员 | $29.99 | one-time |


## Frequently asked questions

### Is 懂了 free?

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

### Is SAT圣题库 free?

SAT圣题库 is free to download, with in-app purchases available.

### Which has better reviews, 懂了 or SAT圣题库?

懂了 and SAT圣题库 are both rated 1.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do 懂了 or SAT圣题库 have ads?

Neither 懂了 nor SAT圣题库 shows ads.

### Which is updated more often, 懂了 or SAT圣题库?

懂了 ships an update every 5 weeks, and SAT圣题库 monthly. Most recently, 懂了 was updated on October 10, 2026 and SAT圣题库 on October 6, 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.*