# Crynostics vs SAT Practice Test & PSAT Prep

The clearest difference is in-app purchases: Crynostics at none against SAT Practice Test & PSAT Prep's 1. Crynostics also leads on update cadence (monthly vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. SAT Practice Test & PSAT Prep sells 1 one-off in-app purchase. Crynostics asks for nothing beyond the download.

Crynostics ships an update monthly, SAT Practice Test & PSAT Prep every 4 months. The most recent releases landed on September 26, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | Crynostics | SAT Practice Test & PSAT Prep |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Monthly** | Every 4 months |
| Size | 5 MB | 22 MB |
| Requires iOS | 17.5 | **16.6** |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [CRYNOSTICS INC.](https://appshunter.io/developer/1724305628) | [iAPPSSTUDIO](https://appshunter.io/developer/1830642259) |

## What reviewers say

### Crynostics

[App page](https://appshunter.io/ios/app/crynostics/id6736761241)

**Features:** macOS Compatibility

**In-app purchases:** none


### SAT Practice Test & PSAT Prep

[App page](https://appshunter.io/ios/app/sat-practice-test-and-psat-prep/id6764739248)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Get Lifetime Access | $7.99 | one-time |


## Frequently asked questions

### Is Crynostics free?

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

### Is SAT Practice Test & PSAT Prep free?

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

### Do Crynostics or SAT Practice Test & PSAT Prep have ads?

Neither Crynostics nor SAT Practice Test & PSAT Prep shows ads.

### Which is updated more often, Crynostics or SAT Practice Test & PSAT Prep?

Crynostics ships an update monthly, and SAT Practice Test & PSAT Prep every 4 months. Most recently, Crynostics was updated on September 26, 2026 and SAT Practice Test & PSAT Prep on September 28, 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.*