# Solve Right Triangle Pro vs TwoPartSaying

The clearest difference is price: TwoPartSaying at Free against Solve Right Triangle Pro's $2.99. Solve Right Triangle Pro's advantage is in-app purchases (none vs 2) and ads (none vs shown). On iOS requirement there is nothing between them.

TwoPartSaying is free to download; Solve Right Triangle Pro costs $2.99 up front. TwoPartSaying sells 2 one-off in-app purchases. Solve Right Triangle Pro asks for nothing beyond the download.

Solve Right Triangle Pro ships an update monthly, TwoPartSaying every 4 months. The most recent releases landed on September 17, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Solve Right Triangle Pro | TwoPartSaying |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/solve-right-triangle-pro/id1567415905/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Monthly** | Every 4 months |
| Monetization | Free | — |
| Size | 179 MB | 16 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) | [德明 杨](https://appshunter.io/developer/1630281265) |

## What reviewers say

### Solve Right Triangle Pro

[App page](https://appshunter.io/ios/app/solve-right-triangle-pro/id1567415905)

This app calculates all unknown quantities of a right triangle by inputting known values. It displays formulas, provides step-by-step solutions, and supports decimal and fraction inputs. Users can adjust decimal precision and view calculation history.

**Highlights:** Calculates all right triangle quantities, Displays relevant formulas, Step-by-step solutions, Supports decimals and fractions, Adjustable decimal precision, Calculation history, Shareable solutions

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

**In-app purchases:** none


### TwoPartSaying

[App page](https://appshunter.io/ios/app/twopartsaying/id1673762702)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Donate | $0.99 | one-time |
| Buy Pro Version | $0.99 | one-time |


## Frequently asked questions

### Is Solve Right Triangle Pro free?

Solve Right Triangle Pro costs $2.99, with no in-app purchases.

### Is TwoPartSaying free?

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

### Do Solve Right Triangle Pro or TwoPartSaying have ads?

TwoPartSaying shows ads; Solve Right Triangle Pro does not.

### Which is updated more often, Solve Right Triangle Pro or TwoPartSaying?

Solve Right Triangle Pro ships an update monthly, and TwoPartSaying every 4 months. Most recently, Solve Right Triangle Pro was updated on September 17, 2026 and TwoPartSaying on September 11, 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.*