# Unlimited Math Problems vs Arbitrary Triangle PRO

The clearest difference is price: Unlimited Math Problems at Free against Arbitrary Triangle PRO's $2.99. Unlimited Math Problems also leads on ratings volume (53 vs 1). Arbitrary Triangle PRO's advantage is rating (5.0 vs 4.5) and iOS requirement (15.0 vs 17.0). On update cadence, ads, in-app purchases and monetization model there is nothing between them.

Unlimited Math Problems is free to download; Arbitrary Triangle PRO costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Arbitrary Triangle PRO holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Unlimited Math Problems has 53 ratings behind it against 1, so its average is the more settled of the two.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 9, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Unlimited Math Problems | Arbitrary Triangle PRO |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | [4.5 (53 ratings)](https://appshunter.io/ios/app/unlimited-math-problems/id1244547440/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/arbitrary-triangle-pro/id1617819308/reviews)** |
| Number of ratings | **53** | 1 |
| Positive reviews | 64.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Paid | Paid |
| Size | 17 MB | 182 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Madiyar Aitbayev](https://appshunter.io/developer/1229466587) | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) |

## What reviewers say

### Unlimited Math Problems

[App page](https://appshunter.io/ios/app/unlimited-math-problems/id1244547440)

Master your math skills with an app that generates an endless supply of practice problems. It offers various interaction types and covers multiple math subjects, suitable for all skill levels.

**Highlights:** Infinite problem generation, Keyboard, multiple choice, true/false inputs, Varied problem types per subject, Covers early math, arithmetic, fractions, number theory, decimals, trigonometry, Suitable for beginners and experienced users

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

**In-app purchases:** none


### Arbitrary Triangle PRO

[App page](https://appshunter.io/ios/app/arbitrary-triangle-pro/id1617819308)

This app calculates all unknown quantities of an arbitrary triangle. It displays the formulas used and provides step-by-step solutions, supporting decimals and fractions. Calculations are saved in history and can be shared.

**Highlights:** Calculates all triangle quantities, Displays formulas used, Step-by-step solutions, Supports decimals and fractions, Calculation history, Shareable solutions

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

**In-app purchases:** none


## Frequently asked questions

### Is Unlimited Math Problems free?

Unlimited Math Problems is free to download, with no in-app purchases.

### Is Arbitrary Triangle PRO free?

Arbitrary Triangle PRO costs $2.99, with no in-app purchases.

### Which has better reviews, Unlimited Math Problems or Arbitrary Triangle PRO?

Arbitrary Triangle PRO is rated higher. Unlimited Math Problems averages 4.5 out of 5 from 53 ratings, while Arbitrary Triangle PRO averages 5.0 from 1 ratings.

### Do Unlimited Math Problems or Arbitrary Triangle PRO have ads?

Neither Unlimited Math Problems nor Arbitrary Triangle PRO shows ads.

### Which is updated more often, Unlimited Math Problems or Arbitrary Triangle PRO?

Unlimited Math Problems ships an update every 3 weeks, and Arbitrary Triangle PRO every 3 weeks. Most recently, Unlimited Math Problems was updated on September 9, 2026 and Arbitrary Triangle PRO on September 17, 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.*