# SAIS Mobile App vs SAT Prep & Test

The clearest difference is in-app purchases: SAIS Mobile App at none against SAT Prep & Test's 3. SAIS Mobile App also leads on update cadence (every 2 weeks vs every 8 months). SAT Prep & Test's advantage is iOS requirement (12.0 vs 15.6). On price, ads and device support there is nothing between them.

Both are free to download. SAT Prep & Test sells 3 in-app purchases, starting at $4.99 per month. SAIS Mobile App asks for nothing beyond the download.

SAIS Mobile App ships an update every 2 weeks, SAT Prep & Test every 8 months. Both last shipped on November 7, 2026.

## The numbers

| Metric | SAIS Mobile App | SAT Prep & Test |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 8 months |
| Size | 93 MB | 70 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Panha Sa](https://appshunter.io/developer/1534830463) | [学勇 张](https://appshunter.io/developer/590340880) |

## What reviewers say

### SAIS Mobile App

[App page](https://appshunter.io/ios/app/sais-mobile-app/id1644305428)

**Features:** macOS Compatibility

**In-app purchases:** none


### SAT Prep & Test

[App page](https://appshunter.io/ios/app/sat-prep-and-test/id6451091204)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MONTHLY | $4.99 | per month |
| 3 MONTHS | $9.99 | per 3 months |
| YEARLY | $19.99 | per year |


## Frequently asked questions

### Is SAIS Mobile App free?

SAIS Mobile App is free to download, with no in-app purchases.

### Is SAT Prep & Test free?

SAT Prep & Test is free to download, with in-app purchases available.

### Do SAIS Mobile App or SAT Prep & Test have ads?

Neither SAIS Mobile App nor SAT Prep & Test shows ads.

### Which is updated more often, SAIS Mobile App or SAT Prep & Test?

SAIS Mobile App ships an update every 2 weeks, and SAT Prep & Test every 8 months. Most recently, SAIS Mobile App was updated on November 7, 2026 and SAT Prep & Test on November 7, 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.*