# Masterix vs Spaced Repetition

The clearest difference is update cadence: Spaced Repetition at every 9 days against Masterix's every 2 months. Spaced Repetition also leads on iOS requirement (15.1 vs 17.5). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Masterix sells 2 in-app purchases, starting at $4.49 per month and Spaced Repetition sells 2 in-app purchases, starting at $1.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Masterix ships an update every 2 months, Spaced Repetition every 9 days. The most recent releases landed on November 2, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Masterix | Spaced Repetition |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 9 days** |
| Size | 188 MB | 37 MB |
| Requires iOS | 17.5 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Evgeny Stanovoy](https://appshunter.io/developer/1139354260) | [Julian Riss](https://appshunter.io/developer/1789947733) |

## What reviewers say

### Masterix

[App page](https://appshunter.io/ios/app/masterix/id1448922801)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium - Monthly | $4.49 | per month |
| Premium - Yearly | $17.49 | per year |


### Spaced Repetition

[App page](https://appshunter.io/ios/app/spaced-repetition-flashcards/id6746726757)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cortex FlashCards | $1.99 | per 7 days |
| Cortex FlashCards | $29.99 | per year |


## Frequently asked questions

### Is Masterix free?

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

### Is Spaced Repetition free?

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

### Do Masterix or Spaced Repetition have ads?

Neither Masterix nor Spaced Repetition shows ads.

### Which is updated more often, Masterix or Spaced Repetition?

Masterix ships an update every 2 months, and Spaced Repetition every 9 days. Most recently, Masterix was updated on November 2, 2026 and Spaced Repetition on October 25, 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.*