# NGSL Builder vs Echo Loop

The clearest difference is rating: NGSL Builder at 4.7 against Echo Loop's 4.0. NGSL Builder also leads on in-app purchases (none vs 2) and review sentiment (100% vs 83%). Echo Loop's advantage is update cadence (every 4 days vs every 8 months). On price, ads, monetization model and device support there is nothing between them.

Both are free to download. Echo Loop sells 2 in-app purchases, starting at $8.99 per month. NGSL Builder asks for nothing beyond the download.

NGSL Builder holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: NGSL Builder has 70 ratings behind it against 11, so its average is the more settled of the two. Written reviews point the same way: 100% of NGSL Builder's written reviews are positive against 83% of Echo Loop's.

NGSL Builder ships an update every 8 months, Echo Loop every 4 days. The most recent releases landed on November 1, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | NGSL Builder | Echo Loop |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (70 ratings)](https://appshunter.io/ios/app/ngsl-builder/id892335804/reviews)** | [4.0 (11 ratings)](https://appshunter.io/ios/app/echo-loop-english-coach/id6760324074/reviews) |
| Number of ratings | **70** | 11 |
| Positive reviews | **100.0% of reviews** | 83.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 4 days** |
| Monetization | Free | Free |
| Size | 248 MB | 165 MB |
| Requires iOS | **7.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [EFL Technologies](https://appshunter.io/developer/942981362) | [Hangzhou Fengchen Hangqi Management Consulting Co., Ltd](https://appshunter.io/developer/1881789584) |

## What reviewers say

### NGSL Builder

[App page](https://appshunter.io/ios/app/ngsl-builder/id892335804)

This app aids English language learners in mastering essential vocabulary from the New General Service List (NGSL). It offers tools for downloading, organizing, and studying words through science-based methods like spaced repetition flashcards. Track your progress and improve your English fluency efficiently.

**Highlights:** NGSL vocabulary list access, Intelligent flashcard system, Spaced-repetition learning, Progress tracking and recording, Wordlist organization, Pronunciation guides

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Echo Loop Plus Monthly | $8.99 | per month |
| Echo Loop Plus Annual | $59.99 | per year |


## Frequently asked questions

### Is NGSL Builder free?

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

### Is Echo Loop free?

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

### Which has better reviews, NGSL Builder or Echo Loop?

NGSL Builder is rated higher. NGSL Builder averages 4.7 out of 5 from 70 ratings, while Echo Loop averages 4.0 from 11 ratings.

### Do NGSL Builder or Echo Loop have ads?

Neither NGSL Builder nor Echo Loop shows ads.

### Which is updated more often, NGSL Builder or Echo Loop?

NGSL Builder ships an update every 8 months, and Echo Loop every 4 days. Most recently, NGSL Builder was updated on November 1, 2026 and Echo Loop on November 5, 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.*