# Trigonometry Master vs OffLingua

The clearest difference is review sentiment: OffLingua at 100% against Trigonometry Master's 50%. OffLingua also leads on update cadence (every 2 months vs every 10 months). Trigonometry Master's advantage is price ($12.99 vs $14.99) and device support (4 vs 1). On ads, in-app purchases and monetization model there is nothing between them.

Trigonometry Master costs $12.99 and OffLingua $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Trigonometry Master ships an update every 10 months, OffLingua every 2 months. The most recent releases landed on November 6, 2026 and November 9, 2026 respectively.

## The numbers

| Metric | Trigonometry Master | OffLingua |
| --- | --- | --- |
| Price | **$12.99** | $14.99 |
| Rating | **[2.5 (2 ratings)](https://appshunter.io/ios/app/trigonometry-master/id1389001905/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 months | **Every 2 months** |
| Monetization | Paid | Paid |
| Size | 12 MB | 8 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Intemodino Group s.r.o.](https://appshunter.io/developer/557849644) | [R&D COPILOT SRL](https://appshunter.io/developer/1867151994) |

## What reviewers say

### Trigonometry Master

[App page](https://appshunter.io/ios/app/trigonometry-master/id1389001905)

Easily calculate unknown sides, angles, area, and perimeter of any triangle. Supports both right and oblique triangles with visual input modes and adjustable decimal places for accuracy. Includes a history tape and email sharing for recent calculations.

**Highlights:** Solves right and oblique triangles, Calculates sides, angles, area, perimeter, Draws calculated triangles, Supports degrees and radians, Visual input modes, Adjustable decimal places, History tape and email results

**Features:** 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 Trigonometry Master free?

Trigonometry Master costs $12.99, with no in-app purchases.

### Is OffLingua free?

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

### Do Trigonometry Master or OffLingua have ads?

Neither Trigonometry Master nor OffLingua shows ads.

### Which is updated more often, Trigonometry Master or OffLingua?

Trigonometry Master ships an update every 10 months, and OffLingua every 2 months. Most recently, Trigonometry Master was updated on November 6, 2026 and OffLingua on November 9, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*