# Prime Rush vs TORI Korean Alphabet

The clearest difference is ads: TORI Korean Alphabet at none against Prime Rush's shown. TORI Korean Alphabet also leads on update cadence (weekly vs every 3 weeks). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Prime Rush sells 1 one-off in-app purchase and TORI Korean Alphabet sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Prime Rush ships an update every 3 weeks, TORI Korean Alphabet weekly. The most recent releases landed on November 9, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Prime Rush | TORI Korean Alphabet |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Weekly** |
| Size | 21 MB | 42 MB |
| Requires iOS | 17 | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Ayumu Izumi](https://appshunter.io/developer/1822273057) | [梓鸿 陈](https://appshunter.io/developer/1830729077) |

## What reviewers say

### Prime Rush

[App page](https://appshunter.io/ios/app/prime-rush-math-time-attack/id6755986782)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Plan | $1.99 | one-time |


### TORI Korean Alphabet

[App page](https://appshunter.io/ios/app/tori-korean-alphabet/id6814071821)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| TORI Pro | $9.99 | one-time |


## Frequently asked questions

### Is Prime Rush free?

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

### Is TORI Korean Alphabet free?

TORI Korean Alphabet is free to download, with in-app purchases available.

### Do Prime Rush or TORI Korean Alphabet have ads?

Prime Rush shows ads; TORI Korean Alphabet does not.

### Which is updated more often, Prime Rush or TORI Korean Alphabet?

Prime Rush ships an update every 3 weeks, and TORI Korean Alphabet weekly. Most recently, Prime Rush was updated on November 9, 2026 and TORI Korean Alphabet on November 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.*