# Pitagorín! vs Circle & Sphere

The clearest difference is price: Circle & Sphere at Free against Pitagorín!'s $0.99. Circle & Sphere also leads on review sentiment (100% vs 67%) and update cadence (every 3 weeks vs every 19 months). Pitagorín!'s advantage is rating (5.0 vs 4.0) and in-app purchases (none vs 8). On ads and iOS requirement there is nothing between them.

Circle & Sphere is free to download; Pitagorín! costs $0.99 up front. Circle & Sphere sells 8 one-off in-app purchases. Pitagorín! asks for nothing beyond the download.

Pitagorín! holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews complicate that: 67% of Pitagorín!'s written reviews are positive against 100% of Circle & Sphere's, so the app with the better star average is not the one people write more warmly about.

Pitagorín! ships an update every 19 months, Circle & Sphere every 3 weeks. The most recent releases landed on October 10, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Pitagorín! | Circle & Sphere |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/pitagorin/id347664740/reviews)** | [4.0 (4 ratings)](https://appshunter.io/ios/app/circle-and-sphere/id1564077078/reviews) |
| Number of ratings | 1 | **4** |
| Positive reviews | 66.7% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 19 months | **Every 3 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 2 MB | 180 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ivan Cabezon Orjales](https://appshunter.io/developer/347664743) | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) |

## What reviewers say

### Pitagorín!

[App page](https://appshunter.io/ios/app/pitagorin/id347664740)

This app assists with mathematical calculations, specifically the Pythagorean theorem and the rule of three. It has been rebuilt from the ground up for improved functionality.

**Highlights:** Pythagorean theorem calculation, Rule of three calculation, Rebuilt from scratch, Educational tool

**Features:** macOS Compatibility

**In-app purchases:** none


### Circle & Sphere

[App page](https://appshunter.io/ios/app/circle-and-sphere/id1564077078)

Instantly solve geometry problems for homework and exams. Calculate circle and sphere properties with step-by-step solutions. Access learning videos and manage your calculations.

**Highlights:** Circle calculations (radius, diameter, circumference, area), Sphere calculations (surface area, volume), Circular sector calculations, Step-by-step solutions, Learning videos, Solution management

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| +30 User Tokens | $0.29 | one-time |
| +1 Convenience Token / 6h, max. +2 | $0.59 | one-time |
| +2 Convenience Tokens / 6h, max. +4 | $0.99 | one-time |
| +150 User Tokens | $0.99 | one-time |
| +300 User Tokens | $1.49 | one-time |
| +4 Convenience Tokens / 6h, max. +8 | $1.59 | one-time |
| Remove Ads | $2.99 | one-time |
| Lifetime Access | $2.99 | one-time |


## Frequently asked questions

### Is Pitagorín! free?

Pitagorín! costs $0.99, with no in-app purchases.

### Is Circle & Sphere free?

Circle & Sphere is free to download, with in-app purchases available.

### Which has better reviews, Pitagorín! or Circle & Sphere?

Pitagorín! is rated higher. Pitagorín! averages 5.0 out of 5 from 1 ratings, while Circle & Sphere averages 4.0 from 4 ratings.

### Do Pitagorín! or Circle & Sphere have ads?

Neither Pitagorín! nor Circle & Sphere shows ads.

### Which is updated more often, Pitagorín! or Circle & Sphere?

Pitagorín! ships an update every 19 months, and Circle & Sphere every 3 weeks. Most recently, Pitagorín! was updated on October 10, 2026 and Circle & Sphere on October 24, 2026.

---

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