# Byki Mobile vs PolyTrak

The clearest difference is rating: PolyTrak at 5.0 against Byki Mobile's 2.5. PolyTrak also leads on update cadence (every 5 days vs every 5 months). Byki Mobile's advantage is ratings volume (19 vs 1) and iOS requirement (12.0 vs 17.6). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Byki Mobile sells 13 one-off in-app purchases and PolyTrak sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

PolyTrak holds the better App Store score, 5.0 against 2.5. That said, the two scores are not equally well evidenced: Byki Mobile has 19 ratings behind it against 1, so its average is the more settled of the two.

Byki Mobile ships an update every 5 months, PolyTrak every 5 days. The most recent releases landed on September 26, 2026 and August 24, 2026 respectively.

## The numbers

| Metric | Byki Mobile | PolyTrak |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.5 (19 ratings)](https://appshunter.io/ios/app/byki-mobile/id674700766/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/polytrak/id6746222031/reviews)** |
| Number of ratings | **19** | 1 |
| Positive reviews | 29.2% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 5 days** |
| Monetization | Free with in-app purchases | Freemium |
| Size | 43 MB | 8 MB |
| Requires iOS | **12.0** | 17.6 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Transparent Language, Inc.](https://appshunter.io/developer/293154354) | [Eugenio Grapa](https://appshunter.io/developer/1006454801) |

## What reviewers say

### Byki Mobile

[App page](https://appshunter.io/ios/app/byki-mobile/id674700766)

This app offers a personalized system for expanding vocabulary in a new language. It uses an engaging flashcard interface and a 3-step process to help users memorize words and phrases. Available in over 80 languages, it includes pronunciation guidance and progress tracking.

**Highlights:** Learn over 1,000 words and phrases per language, Over 70 vocabulary lists per language, Native script and pronunciation with SlowSound™, Multiple choice quizzes, Progress tracking, Search words and phrases on Twitter

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

**In-app purchases (13)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Arabic Content Set | $7.99 | one-time |
| Chinese, Mandarin - Simplified Content Set | $7.99 | one-time |
| Portuguese, Brazilian Content Set | $7.99 | one-time |
| Farsi Content Set | $7.99 | one-time |
| Russian Content Set | $7.99 | one-time |
| French Content Set | $7.99 | one-time |
| German Content Set | $7.99 | one-time |
| Haitian Creole Content Set | $7.99 | one-time |
| Italian Content Set | $7.99 | one-time |
| Spanish, Latin American Content Set | $7.99 | one-time |
| Hebrew Content Set | $7.99 | one-time |
| Japanese Content Set | $7.99 | one-time |
| Turkish Content Set | $7.99 | one-time |


### PolyTrak

[App page](https://appshunter.io/ios/app/polytrak/id6746222031)

This app helps language learners build momentum and stay motivated by tracking habits and visualizing progress. It offers a private experience with no ads or tracking, and provides flexible upgrade options for enhanced features.

**Highlights:** Habit tracking, Progress visualization, Language learning support, Private data handling, Internal help browser, Feedback submission

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $1.99 | per month |
| Premium Yearly | $19.99 | per year |


## Frequently asked questions

### Is Byki Mobile free?

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

### Is PolyTrak free?

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

### Which has better reviews, Byki Mobile or PolyTrak?

PolyTrak is rated higher. Byki Mobile averages 2.5 out of 5 from 19 ratings, while PolyTrak averages 5.0 from 1 ratings.

### Do Byki Mobile or PolyTrak have ads?

Neither Byki Mobile nor PolyTrak shows ads.

### Which is updated more often, Byki Mobile or PolyTrak?

Byki Mobile ships an update every 5 months, and PolyTrak every 5 days. Most recently, Byki Mobile was updated on September 26, 2026 and PolyTrak on August 24, 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.*