# Unlimited Math Problems vs Circle and Sphere Pro

The clearest difference is rating: Circle and Sphere Pro at 4.9 against Unlimited Math Problems's 4.5. Circle and Sphere Pro also leads on price ($2.99 vs $5.99) and iOS requirement (15.0 vs 17.0). Unlimited Math Problems's advantage is ratings volume (53 vs 7). On review sentiment, update cadence, ads and in-app purchases there is nothing between them.

Unlimited Math Problems costs $5.99 and Circle and Sphere Pro $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Circle and Sphere Pro holds the better App Store score, 4.9 against 4.5. That said, the two scores are not equally well evidenced: Unlimited Math Problems has 53 ratings behind it against 7, so its average is the more settled of the two. Written reviews point the same way: 64% of Unlimited Math Problems's written reviews are positive against 67% of Circle and Sphere Pro's.

Unlimited Math Problems ships an update every 3 weeks, Circle and Sphere Pro monthly. The most recent releases landed on October 12, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Unlimited Math Problems | Circle and Sphere Pro |
| --- | --- | --- |
| Price | $5.99 | **$2.99** |
| Rating | [4.5 (53 ratings)](https://appshunter.io/ios/app/unlimited-math-problems/id1244547440/reviews) | **[4.9 (7 ratings)](https://appshunter.io/ios/app/circle-and-sphere-pro/id1564077280/reviews)** |
| Number of ratings | **53** | 7 |
| Positive reviews | 64.3% of reviews | **66.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Paid | **Free** |
| Size | 17 MB | 180 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


### Circle and Sphere Pro

[App page](https://appshunter.io/ios/app/circle-and-sphere-pro/id1564077280)

This app calculates various geometric quantities for circles and spheres, including sectors and segments. It supports decimals and fractions, displays formulas and solutions step-by-step, and stores calculations in a history. Users can share their results.

**Highlights:** Calculates sphere and circle quantities, Supports sectors and segments, Shows formulas and step-by-step solutions, Handles decimals and fractions, Stores calculations in history, Allows sharing of results

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

**In-app purchases:** none


## Frequently asked questions

### Is Unlimited Math Problems free?

Unlimited Math Problems costs $5.99, with no in-app purchases.

### Is Circle and Sphere Pro free?

Circle and Sphere Pro costs $2.99, with no in-app purchases.

### Which has better reviews, Unlimited Math Problems or Circle and Sphere Pro?

Circle and Sphere Pro is rated higher. Unlimited Math Problems averages 4.5 out of 5 from 53 ratings, while Circle and Sphere Pro averages 4.9 from 7 ratings.

### Do Unlimited Math Problems or Circle and Sphere Pro have ads?

Neither Unlimited Math Problems nor Circle and Sphere Pro shows ads.

### Which is updated more often, Unlimited Math Problems or Circle and Sphere Pro?

Unlimited Math Problems ships an update every 3 weeks, and Circle and Sphere Pro monthly. Most recently, Unlimited Math Problems was updated on October 12, 2026 and Circle and Sphere Pro on October 9, 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.*