# Triangle & Angle calculator vs Trigonometry Help Lite

The clearest difference is review sentiment: Trigonometry Help Lite at 88% against Triangle & Angle calculator's 5%. Trigonometry Help Lite also leads on rating (4.7 vs 4.0) and update cadence (every 6 weeks vs every 3 months). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Triangle & Angle calculator sells 2 one-off in-app purchases and Trigonometry Help Lite sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Trigonometry Help Lite holds the better App Store score, 4.7 against 4.0. Both are backed by a comparable volume of ratings — 209 and 768 respectively. Written reviews point the same way: 5% of Triangle & Angle calculator's written reviews are positive against 88% of Trigonometry Help Lite's.

Triangle & Angle calculator ships an update every 3 months, Trigonometry Help Lite every 6 weeks. The most recent releases landed on September 18, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Triangle & Angle calculator | Trigonometry Help Lite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (209 ratings)](https://appshunter.io/ios/app/triangle-and-angle-calculator/id1278963382/reviews) | **[4.7 (768 ratings)](https://appshunter.io/ios/app/trigonometry-help-lite/id1465685523/reviews)** |
| Number of ratings | 209 | **768** |
| Positive reviews | 4.5% of reviews | **87.5% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 7 MB | 17 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Maxime Haeyaert](https://appshunter.io/developer/1274130669) | [Armchair Engineering](https://appshunter.io/developer/398901339) |

## What reviewers say

### Triangle & Angle calculator

[App page](https://appshunter.io/ios/app/triangle-and-angle-calculator/id1278963382)

Easily solve geometry exercises and verify your calculations with this tool. It simplifies complex problems with a single click, making math more accessible.

**Highlights:** Solve geometry exercises, Check calculations, Simple click interface, Angle calculations, Formula solver

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Deleting advertisements | $0.99 | one-time |
| Detail Calculations and formul | $1.99 | one-time |


### Trigonometry Help Lite

[App page](https://appshunter.io/ios/app/trigonometry-help-lite/id1465685523)

This app quickly calculates unknown angles and sides of right-angled triangles. It offers a workings view for detailed solutions, scale drawings, and a formula reference. Input angles in various formats and customize decimal precision.

**Highlights:** Solve right-angled triangles, View detailed math workings, Scale drawing of solved triangle, Basic trig formulae reference, Multiple angle input formats, Customizable decimal places

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Trig Help Premium | $2.99 | one-time |
| Trig Help Premium | $3.99 | one-time |
| Trig Help Premium | $5.99 | one-time |

**What reviewers like**

- 👍 Simple and intuitive user interface
- 🚀 Quick and fast calculations
- 💼 Practical for professional use (construction, surveying)
- ✅ Reliable and doesn't crash
- 📚 Helpful for learning trigonometry

**What reviewers complain about**

- 💰 Unclear upgrade value proposition
- 📊 Limited decimal place precision in free version
- 🔍 Insufficient feature differentiation between tiers
- ⚠️ Calculation accuracy issues reported

**Reported bugs**

- Incorrect calculation results in some cases

**Requested features**

- Better visual representation of triangles
- Clearer explanation of premium features
- Higher default decimal place precision
- More detailed feature descriptions for paid tiers


## Frequently asked questions

### Is Triangle & Angle calculator free?

Triangle & Angle calculator is free to download, with in-app purchases available.

### Is Trigonometry Help Lite free?

Trigonometry Help Lite is free to download, with in-app purchases available.

### Which has better reviews, Triangle & Angle calculator or Trigonometry Help Lite?

Trigonometry Help Lite is rated higher. Triangle & Angle calculator averages 4.0 out of 5 from 209 ratings, while Trigonometry Help Lite averages 4.7 from 768 ratings.

### Do Triangle & Angle calculator or Trigonometry Help Lite have ads?

Neither Triangle & Angle calculator nor Trigonometry Help Lite shows ads.

### Which is updated more often, Triangle & Angle calculator or Trigonometry Help Lite?

Triangle & Angle calculator ships an update every 3 months, and Trigonometry Help Lite every 6 weeks. Most recently, Triangle & Angle calculator was updated on September 18, 2026 and Trigonometry Help Lite on September 30, 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.*