# zeroStudy vs Lingo Diary

The clearest difference is in-app purchases: zeroStudy at none against Lingo Diary's 3. zeroStudy also leads on ads (none vs shown) and update cadence (daily vs every 3 days). On price there is nothing between them.

Both are free to download. Lingo Diary sells 3 in-app purchases, starting at $9.99 per month. zeroStudy asks for nothing beyond the download.

zeroStudy ships an update daily, Lingo Diary every 3 days. The most recent releases landed on October 14, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | zeroStudy | Lingo Diary |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Daily** | Every 3 days |
| Size | 41 MB | 46 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [JIA JIUN Ku](https://appshunter.io/developer/1884246557) | [SPARKLECT CO.,LTD.](https://appshunter.io/developer/1609566694) |

## What reviewers say

### zeroStudy

[App page](https://appshunter.io/ios/app/zerostudy/id6760388575)

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

**In-app purchases:** none


### Lingo Diary

[App page](https://appshunter.io/ios/app/lingo-diary-learn-by-talking/id6760644930)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plus | $9.99 | per month |
| Pro | $12.99 | per month |
| Max | $19.99 | per month |


## Frequently asked questions

### Is zeroStudy free?

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

### Is Lingo Diary free?

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

### Do zeroStudy or Lingo Diary have ads?

Lingo Diary shows ads; zeroStudy does not.

### Which is updated more often, zeroStudy or Lingo Diary?

zeroStudy ships an update daily, and Lingo Diary every 3 days. Most recently, zeroStudy was updated on October 14, 2026 and Lingo Diary on October 2, 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.*