# StudyProve vs koa

The clearest difference is in-app purchases: StudyProve at none against koa's 2. StudyProve also leads on iOS requirement (13.0 vs 16.4). koa's advantage is update cadence (every 3 days vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. koa sells 2 in-app purchases, starting at $5.99 per month. StudyProve asks for nothing beyond the download.

StudyProve ships an update every 2 months, koa every 3 days. The most recent releases landed on October 14, 2026 and September 26, 2026 respectively.

## The numbers

| Metric | StudyProve | koa |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 days** |
| Size | 53 MB | 78 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Huseyin Fatih Uluer](https://appshunter.io/developer/1705431987) | [Kaan YILDIZKAN](https://appshunter.io/developer/1866529994) |

## What reviewers say

### StudyProve

[App page](https://appshunter.io/ios/app/studyprove/id6464075337)

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

**In-app purchases:** none


### koa

[App page](https://appshunter.io/ios/app/koalingo-learn-english/id6790915001)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (Monthly) | $5.99 | per month |
| Premium (Yearly) | $49.99 | per year |


## Frequently asked questions

### Is StudyProve free?

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

### Is koa free?

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

### Do StudyProve or koa have ads?

Neither StudyProve nor koa shows ads.

### Which is updated more often, StudyProve or koa?

StudyProve ships an update every 2 months, and koa every 3 days. Most recently, StudyProve was updated on October 14, 2026 and koa on September 26, 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.*