# Mango Languages vs Sustainable Libraries

The clearest difference is in-app purchases: Sustainable Libraries at none against Mango Languages's 4. Sustainable Libraries also leads on rating (5.0 vs 4.8) and iOS requirement (12.0 vs 15.5). Mango Languages's advantage is update cadence (fortnightly vs every 66 months) and ratings volume (44K vs 1). On price, ads and device support there is nothing between them.

Both are free to download. Mango Languages sells 4 in-app purchases, starting at $13.99 per month. Sustainable Libraries asks for nothing beyond the download.

Sustainable Libraries holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Mango Languages has 44K ratings behind it against 1, so its average is the more settled of the two.

Mango Languages ships an update fortnightly, Sustainable Libraries every 66 months. The most recent releases landed on October 1, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | Mango Languages | Sustainable Libraries |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.8 (44K ratings)](https://appshunter.io/ios/app/mango-languages-learning/id443516516/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sustainable-libraries/id1170914405/reviews)** |
| Number of ratings | **44K** | 1 |
| Positive reviews | 77.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 66 months |
| Monetization | Freemium | **Free** |
| Best chart rank | **#183** | — |
| Size | 85 MB | 12 MB |
| Requires iOS | 15.5 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Creative Empire, LLC](https://appshunter.io/developer/443516519) | [Capira Technologies](https://appshunter.io/developer/1010559443) |

## What reviewers say

### Mango Languages

[App page](https://appshunter.io/ios/app/mango-languages-learning/id443516516)

**Currently charting:** #183 Top Grossing · Education, #193 Top Free · Education (US App Store)

Learn to speak foreign languages with conversational lessons focused on real language, culture, and progress. Features native speaker recordings, pronunciation tools, and personalized reviews. Download lessons for offline access and enjoy a distraction-free learning experience.

**Highlights:** Conversational lessons, 70+ languages, Native speaker recordings, Pronunciation comparison tool, Personalized reviews, Offline lesson access, No ads

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Individual Plan (Monthly) | $13.99 | per month |
| Family Plan (Monthly) | $19.99 | per month |
| Individual Plan (Yearly) | $119.99 | per year |
| Family Plan (Yearly) | $149.99 | per year |

**What reviewers like**

- 🚀 Effective language learning
- 👍 Useful features (pronunciation, review cards, etc.)
- 🌍 Wide variety of languages
- 💰 Free through libraries
- 👍 Engaging and interactive lessons

**What reviewers complain about**

- 🐛 App crashes and login issues
- 💰 Expensive subscription
- 🔍 Limited content for some languages
- 🔀 Disruptive changes to lesson structure
- 📖 Lack of grammar explanations

**Reported bugs**

- App crashes when accessing flashcards
- Downloading issues when traveling abroad
- Inconsistent behavior when switching between lessons

**Requested features**

- Dark mode option
- More grammar and writing support
- Improved vocabulary tools
- Customizable lesson structure
- Offline access improvements


### Sustainable Libraries

[App page](https://appshunter.io/ios/app/sustainable-libraries/id1170914405)

This app guides library staff through making their institutions more sustainable and resilient. It offers practical steps, resources, and tools to foster environmentally sound, economically feasible, and socially equitable practices.

**Highlights:** Sustainability roadmap guidance, Checklists for sustainable practices, Notes feature for planning, News feed for updates, Content sharing capabilities, Step-by-step task breakdown

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Mango Languages free?

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

### Is Sustainable Libraries free?

Sustainable Libraries is free to download, with no in-app purchases.

### Which has better reviews, Mango Languages or Sustainable Libraries?

Sustainable Libraries is rated higher. Mango Languages averages 4.8 out of 5 from 44K ratings, while Sustainable Libraries averages 5.0 from 1 ratings.

### Do Mango Languages or Sustainable Libraries have ads?

Neither Mango Languages nor Sustainable Libraries shows ads.

### Which is updated more often, Mango Languages or Sustainable Libraries?

Mango Languages ships an update fortnightly, and Sustainable Libraries every 66 months. Most recently, Mango Languages was updated on October 1, 2026 and Sustainable Libraries on September 23, 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.*