# 英語音読勉強アプリOnki vs StudyTrail

The clearest difference is update cadence: StudyTrail at fortnightly against 英語音読勉強アプリOnki's every 23 months. StudyTrail also leads on device support. On price, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

英語音読勉強アプリOnki ships an update every 23 months, StudyTrail fortnightly. The most recent releases landed on October 16, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | 英語音読勉強アプリOnki | StudyTrail |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | — | No |
| Update frequency | Every 23 months | **Fortnightly** |
| Size | 92 MB | 20 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | — | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [E COMMUNICATION. INC.](https://appshunter.io/developer/1676906239) | [haruto nomura](https://appshunter.io/developer/1896777512) |

## What reviewers say

### 英語音読勉強アプリOnki

[App page](https://appshunter.io/ios/app/onki-ai/id6446245629)

**In-app purchases:** none


### StudyTrail

[App page](https://appshunter.io/ios/app/studytrail/id6771300607)

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

**In-app purchases:** none


## Frequently asked questions

### Is 英語音読勉強アプリOnki free?

英語音読勉強アプリOnki is free to download, with no in-app purchases.

### Is StudyTrail free?

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

### Which is updated more often, 英語音読勉強アプリOnki or StudyTrail?

英語音読勉強アプリOnki ships an update every 23 months, and StudyTrail fortnightly. Most recently, 英語音読勉強アプリOnki was updated on October 16, 2026 and StudyTrail on October 14, 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.*