# TOEIC AI Study vs ZenAI

The clearest difference is in-app purchases: TOEIC AI Study at none against ZenAI's 3. TOEIC AI Study also leads on device support (3 vs 1) and iOS requirement (12.0 vs 18.5). ZenAI's advantage is ads (none vs shown) and update cadence (every 2 days vs every 6 weeks). On price there is nothing between them.

Both are free to download. ZenAI sells 3 one-off in-app purchases. TOEIC AI Study asks for nothing beyond the download.

TOEIC AI Study ships an update every 6 weeks, ZenAI every 2 days. The most recent releases landed on August 22, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | TOEIC AI Study | ZenAI |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Every 2 days** |
| Size | 43 MB | 6 MB |
| Requires iOS | **12.0** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [PT APPKEY](https://appshunter.io/developer/1691980738) | [ZenStudy Technologies - FZCO](https://appshunter.io/developer/1782979211) |

## What reviewers say

### TOEIC AI Study

[App page](https://appshunter.io/ios/app/toeic-ai-study-smart-prep-app/id6744311278)

**Features:** macOS Compatibility

**In-app purchases:** none


### ZenAI

[App page](https://appshunter.io/ios/app/zenai-study-smarter/id6747843527)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 Credit | $0.99 | one-time |
| 5 Credits | $3.99 | one-time |
| 10 Credits | $5.99 | one-time |


## Frequently asked questions

### Is TOEIC AI Study free?

TOEIC AI Study is free to download, with no in-app purchases.

### Is ZenAI free?

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

### Do TOEIC AI Study or ZenAI have ads?

TOEIC AI Study shows ads; ZenAI does not.

### Which is updated more often, TOEIC AI Study or ZenAI?

TOEIC AI Study ships an update every 6 weeks, and ZenAI every 2 days. Most recently, TOEIC AI Study was updated on August 22, 2026 and ZenAI on September 20, 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.*