# Bluebird vs SDLA

The clearest difference is in-app purchases: SDLA at none against Bluebird's 8. Bluebird's advantage is device support. On price and iOS requirement there is nothing between them.

Both are free to download. Bluebird sells 7 in-app purchases, starting at $4.99 per year. SDLA asks for nothing beyond the download.

## The numbers

| Metric | Bluebird | SDLA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (105 ratings)](https://appshunter.io/ios/app/bluebird-learn-163-languages/id1484286928/reviews)** | — |
| Number of ratings | **105** | — |
| Positive reviews | 70.1% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 2 months | — |
| Monetization | Free with in-app purchases | — |
| Size | 44 MB | 99 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod** | — |
| Age rating | 12+ | 4+ |
| Developer | [Pronunciator LLC](https://appshunter.io/developer/520228857) | [Bunker Palace SA](https://appshunter.io/developer/449146694) |

## What reviewers say

### Bluebird

[App page](https://appshunter.io/ios/app/bluebird-learn-163-languages/id1484286928)

Master 163 languages with interactive audio lessons, personalized courses, and scientifically proven learning techniques. Learn hands-free while commuting, exercising, or relaxing. Build vocabulary, master verbs, and construct sentences for everyday situations and complex conversations.

**Highlights:** Learn 163 languages, Interactive audio lessons, Personalized courses, Spaced repetition learning, Hands-free learning, Learn 2,000 high-frequency words per language

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| لغة واحدة (سنة واحدة) | $4.99 | per year |
| لغة واحدة (شهر واحد) | $4.99 | per month |
| Unlimited languages (1 month) | $9.99 | per month |
| Unlimited languages (1 year) | $99.99 | per year |
| TESTS APP RAPID TEST PRODUCT | $19.99 | one-time |
| Lifetime purchase | $199.99 | one-time |
| Lifetime purchase | $399.99 | one-time |

**What reviewers like**

- 📚 Extensive language library
- 🗣️ Good pronunciation analysis
- 🎧 Free audio lessons
- 🆓 Many free quizzes
- 💡 Unique learning model

**What reviewers complain about**

- 🐛 Glitchy sometimes
- 📉 Some languages have less content
- 🐌 Slow to load
- ❌ Errors in lessons
- 🤔 Audio endings cut off

**Reported bugs**

- Pictures not displaying
- Button functionality vanished
- No pictures associated with words
- Some audio missing endings
- App not working after first lesson (Maltese)

**Requested features**

- Add more content for Georgian, Kazakh, Tajik, and Khmer courses
- Add cultural and grammar explanations
- Add background app refresh (screen off/minimized)
- Add word-to-word translations for phrases
- Allow skipping or fast-forwarding in pronunciation analysis


### SDLA

[App page](https://appshunter.io/ios/app/sdla/id6448542763)

**In-app purchases:** none


## Frequently asked questions

### Is Bluebird free?

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

### Is SDLA free?

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

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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.*