# Relativity Widget vs OffLingua

The clearest difference is price: Relativity Widget at Free against OffLingua's $14.99. Relativity Widget also leads on iOS requirement (14.0 vs 17.0). OffLingua's advantage is update cadence (every 2 months vs every 6 months). On review sentiment, ads, in-app purchases and device support there is nothing between them.

Relativity Widget is free to download; OffLingua costs $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Relativity Widget ships an update every 6 months, OffLingua every 2 months. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Relativity Widget | OffLingua |
| --- | --- | --- |
| Price | **Free** | $14.99 |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/relativity-widget/id1534420574/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | **Free** | Paid |
| Size | 1 MB | 8 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Eliott Morgensztern](https://appshunter.io/developer/1478504124) | [R&D COPILOT SRL](https://appshunter.io/developer/1867151994) |

## What reviewers say

### Relativity Widget

[App page](https://appshunter.io/ios/app/relativity-widget/id1534420574)

Visualize Einstein's theories of relativity directly on your home screen. Choose between Special Relativity to see time dilation in a spaceship or General Relativity to observe time differences near a black hole.

**Highlights:** Special Relativity visualization, General Relativity visualization, Time dilation display, Home screen integration, Customizable speed/distance settings

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

**In-app purchases:** none


### OffLingua

[App page](https://appshunter.io/ios/app/offlingua-offline-translator/id6757960008)

This app offers AI-powered, private offline translation for 55 languages directly on your device. It supports text, photo, and voice input with a refined interface and advanced on-device speech recognition. All translations are processed locally, ensuring your data never leaves your iPhone.

**Highlights:** Offline AI translation for 55 languages, On-device text, photo, and voice translation, Automatic OCR for photo translation, Quick Translate Panel, Encrypted local conversation history, Transparent on-device performance indicators

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

**In-app purchases:** none


## Frequently asked questions

### Is Relativity Widget free?

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

### Is OffLingua free?

OffLingua costs $14.99, with no in-app purchases.

### Do Relativity Widget or OffLingua have ads?

Neither Relativity Widget nor OffLingua shows ads.

### Which is updated more often, Relativity Widget or OffLingua?

Relativity Widget ships an update every 6 months, and OffLingua every 2 months. Most recently, Relativity Widget was updated on November 3, 2026 and OffLingua on October 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.*