# Tech English for Developers vs Echo

Tech English for Developers and Echo are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Tech English for Developers sells 1 one-off in-app purchase and Echo sells 2 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

Both ship on a similar rhythm, roughly every 5 days. The most recent releases landed on October 15, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Tech English for Developers | Echo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | Every 5 days |
| Size | 59 MB | 21 MB |
| Requires iOS | **16.6** | 17.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [katsuya tamai](https://appshunter.io/developer/1504443936) | [Pham Anh Tuan](https://appshunter.io/developer/1539638115) |

## What reviewers say

### Tech English for Developers

[App page](https://appshunter.io/ios/app/tech-english-for-developers/id6742486115)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 広告非表示（買い切り） | $1.99 | one-time |


### Echo

[App page](https://appshunter.io/ios/app/echo-english-shadowing/id6759615101)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $5.99 | per month |
| Annually Subscription | $49.99 | per year |


## Frequently asked questions

### Is Tech English for Developers free?

Tech English for Developers is free to download, with in-app purchases available.

### Is Echo free?

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

### Do Tech English for Developers or Echo have ads?

Neither Tech English for Developers nor Echo shows ads.

### Which is updated more often, Tech English for Developers or Echo?

Tech English for Developers ships an update every 5 days, and Echo every 5 days. Most recently, Tech English for Developers was updated on October 15, 2026 and Echo 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.*