# Echo Loop vs Custodia Learn

Echo Loop and Custodia Learn are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support 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. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Echo Loop | Custodia Learn |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (8 ratings)](https://appshunter.io/ios/app/echo-loop-english-coach/id6760324074/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | 80.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 days | — |
| Monetization | Free | — |
| Size | 164 MB | 40 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Hangzhou Fengchen Hangqi Management Consulting Co., Ltd](https://appshunter.io/developer/1881789584) | [TOP HOUSE SOLUTIONS S.R.L.](https://appshunter.io/developer/1882884480) |

## What reviewers say

### Echo Loop

[App page](https://appshunter.io/ios/app/echo-loop-english-coach/id6760324074)

This app uses a science-based, eight-stage spaced repetition system to improve English listening and speaking skills. It guides users through blind listening, intensive listening, sentence repetition, and paragraph retelling, with AI feedback and vocabulary tools.

**Highlights:** Eight-stage spaced repetition learning, Blind and intensive listening modes, AI-assisted sentence repetition with feedback, Paragraph retelling with keyword generation, Bookmarking for sentences and vocabulary, Vocabulary flashcard review, Learning progress tracking

**Features:** macOS Compatibility

**In-app purchases:** none


### Custodia Learn

[App page](https://appshunter.io/ios/app/custodia-learn/id6766041208)

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

**In-app purchases:** none


## Frequently asked questions

### Is Echo Loop free?

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

### Is Custodia Learn free?

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

### Do Echo Loop or Custodia Learn have ads?

Neither Echo Loop nor Custodia Learn shows ads.

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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.*