# JustFit vs Cat Lang Translator

The clearest difference is ads: JustFit at none against Cat Lang Translator's shown. JustFit also leads on iOS requirement (13.0 vs 15.8.3). Cat Lang Translator's advantage is update cadence (fortnightly vs every 18 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

JustFit ships an update every 18 months, Cat Lang Translator fortnightly. The most recent releases landed on July 11, 2026 and July 31, 2026 respectively.

## The numbers

| Metric | JustFit | Cat Lang Translator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/justfit/id696338622/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 18 months | **Fortnightly** |
| Monetization | Free | — |
| Size | 4 MB | 36 MB |
| Requires iOS | **13.0** | 15.8.3 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Yongseok Kim](https://appshunter.io/developer/1419426179) | [Hideaki Uchikoshi](https://appshunter.io/developer/1559575002) |

## What reviewers say

### JustFit

[App page](https://appshunter.io/ios/app/justfit/id696338622)

This app offers an enhanced experience for applying screen protectors, even if you haven't purchased their product. It guides users through the attachment process, aiming to improve convenience.

**Highlights:** Screen protector attachment experience, Guidance for application, Works with or without product purchase, Improved user convenience

**Features:** macOS Compatibility

**In-app purchases:** none


### Cat Lang Translator

[App page](https://appshunter.io/ios/app/cat-lang-translator/id6748277516)

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

**In-app purchases:** none


## Frequently asked questions

### Is JustFit free?

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

### Is Cat Lang Translator free?

Cat Lang Translator is free to download, with no in-app purchases.

### Do JustFit or Cat Lang Translator have ads?

Cat Lang Translator shows ads; JustFit does not.

### Which is updated more often, JustFit or Cat Lang Translator?

JustFit ships an update every 18 months, and Cat Lang Translator fortnightly. Most recently, JustFit was updated on July 11, 2026 and Cat Lang Translator on July 31, 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.*