# Echo vs Study AI

The clearest difference is price: Study AI at Free against Echo's $1.99. Study AI also leads on rating (5.0 vs 1.0) and update cadence (every 4 days vs every 3 months). Echo's advantage is in-app purchases (none vs 7). On ratings volume, ads and device support there is nothing between them.

Study AI is free to download; Echo costs $1.99 up front. Study AI sells 6 in-app purchases, starting at $6.99 per 7 days. Echo asks for nothing beyond the download.

Study AI holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

Echo ships an update every 3 months, Study AI every 4 days. The most recent releases landed on September 1, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | Echo | Study AI |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/echo-speech-therapy/id558585608/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/study-ai-homework-helper/id6475925878/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 4 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 1 MB | 71 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPod |
| Age rating | 9+ | 4+ |
| Developer | [William Entriken](https://appshunter.io/developer/558586671) | [聪 杭](https://appshunter.io/developer/1716850832) |

## What reviewers say

### Echo

[App page](https://appshunter.io/ios/app/echo-speech-therapy/id558585608)

This app aids pronunciation improvement by letting users record themselves and compare it to native speaker audio. It's ideal for speech practice, accent reduction, and language learning, offering downloadable lessons for consistent repetition.

**Highlights:** Record and compare pronunciation, Native speaker models, Accent reduction, Language learning, Downloadable lessons, Offline practice

**Features:** Vision Pro support

**In-app purchases:** none


### Study AI

[App page](https://appshunter.io/ios/app/study-ai-homework-helper/id6475925878)

This app uses AI to help students understand complex subjects, solve math problems, and improve writing. It offers 24/7 AI support for academic queries and acts as a resource for students, educators, and scholars.

**Highlights:** AI-powered subject comprehension, Scan textbook problems, 24/7 AI academic support, Math problem assistance, Grammar checking, Up-to-date information

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Study AI - Weekly | $6.99 | per 7 days |
| Study AI - Weekly | $9.99 | per 7 days |
| Study AI - Monthly | $19.99 | per month |
| Study AI - Yearly | $34.99 | per year |
| Study AI - Yearly | $59.90 | per year |
| Study AI - Yearly | $59.99 | per year |


## Frequently asked questions

### Is Echo free?

Echo costs $1.99, with no in-app purchases.

### Is Study AI free?

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

### Which has better reviews, Echo or Study AI?

Study AI is rated higher. Echo averages 1.0 out of 5 from 2 ratings, while Study AI averages 5.0 from 1 ratings.

### Do Echo or Study AI have ads?

Neither Echo nor Study AI shows ads.

### Which is updated more often, Echo or Study AI?

Echo ships an update every 3 months, and Study AI every 4 days. Most recently, Echo was updated on September 1, 2026 and Study AI on June 4, 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.*