# 504 vs Basic for Listening

The clearest difference is in-app purchases: Basic for Listening at none against 504's 13. Basic for Listening also leads on review sentiment (100% vs 73%) and rating (5.0 vs 4.8). 504's advantage is update cadence (fortnightly vs every 13 months) and ratings volume (4.6K vs 5). On price, ads and device support there is nothing between them.

Both are free to download. 504 sells 12 in-app purchases, starting at $4.99 per 7 days. Basic for Listening asks for nothing beyond the download.

Basic for Listening holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: 504 has 4.6K ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 73% of 504's written reviews are positive against 100% of Basic for Listening's.

504 ships an update fortnightly, Basic for Listening every 13 months. The most recent releases landed on September 21, 2026 and June 10, 2026 respectively.

## The numbers

| Metric | 504 | Basic for Listening |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (4.6K ratings)](https://appshunter.io/ios/app/504-vocabulary-builder/id1452101398/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/basic-for-listening-3rd/id1505006587/reviews)** |
| Number of ratings | **4.6K** | 5 |
| Positive reviews | 72.6% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Fortnightly** | Every 13 months |
| Monetization | Free with in-app purchases | **Ad-supported** |
| Size | 65 MB | 116 MB |
| Requires iOS | 18.0 | **11.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Nefarius Apps](https://appshunter.io/developer/1792473508) | [Le Bin](https://appshunter.io/developer/1259013611) |

## What reviewers say

### 504

[App page](https://appshunter.io/ios/app/504-vocabulary-builder/id1452101398)

Master essential vocabulary with this language learning app. It offers clear definitions, example sentences, and native pronunciation for high-utility words. Engage with interactive games like flashcards and quizzes to reinforce learning and track your progress effectively.

**Highlights:** Essential vocabulary selection, Clear definitions and example sentences, Native pronunciation audio, Interactive learning games (flashcards, quizzes), Progress tracking tools, Multi-language support

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

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | per 7 days |
| Weekly Pro Membership | $8.99 | per 7 days |
| Weekly Premium Membership | $9.99 | per 7 days |
| Premium | $9.99 | per month |
| Premium | $9.99 | per month |
| Premium | $9.99 | per 7 days |
| Monthly Pro Membership | $17.99 | per month |
| Monthly Premium Membership | $19.99 | per month |
| Premium | $34.99 | per year |
| Yearly Premium Membership | $59.99 | per year |
| Yearly Pro Membership | $59.99 | per year |
| Lifetime Access | $79.99 | one-time |

**What reviewers like**

- 🚀 Easy to learn
- 👍 Useful vocabulary practice
- 🚀 Convenient for learning on the go

**What reviewers complain about**

- 🐛 Bugs and glitches in latest version
- 🔒 Concerns about data tracking
- 🔊 Issues with pronunciation and audio

**Reported bugs**

- Pronunciation not working in latest version
- Lessons for second half of book blocked behind paywall
- Compatibility issues with older devices

**Requested features**

- Add part of speech for each word
- Include a note box for personal examples
- Add dark mode option


### Basic for Listening

[App page](https://appshunter.io/ios/app/basic-for-listening-3rd/id1505006587)

This app offers an activity-rich listening course designed to build skills in listening and conversation. It includes practice for testing and exam techniques, aiming to develop confident listeners and improve exam success.

**Highlights:** Activity-rich listening course, Builds listening and conversation skills, Practice for testing and exam techniques, Engaging and motivating activities, Short, practical content chunks

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 504 free?

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

### Is Basic for Listening free?

Basic for Listening is free to download, with no in-app purchases.

### Which has better reviews, 504 or Basic for Listening?

Basic for Listening is rated higher. 504 averages 4.8 out of 5 from 4.6K ratings, while Basic for Listening averages 5.0 from 5 ratings.

### Do 504 or Basic for Listening have ads?

Both 504 and Basic for Listening show ads.

### Which is updated more often, 504 or Basic for Listening?

504 ships an update fortnightly, and Basic for Listening every 13 months. Most recently, 504 was updated on September 21, 2026 and Basic for Listening on June 10, 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.*