# Triangle Calculators vs Circle & Sphere

The clearest difference is review sentiment: Circle & Sphere at 100% against Triangle Calculators's 0%. Circle & Sphere also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 26 months). Triangle Calculators's advantage is rating (5.0 vs 4.0) and in-app purchases (none vs 8). On price, ratings volume and device support there is nothing between them.

Both are free to download. Circle & Sphere sells 8 one-off in-app purchases. Triangle Calculators asks for nothing beyond the download.

Triangle Calculators holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 4 and 4 respectively. Written reviews complicate that: 0% of Triangle Calculators'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.

Triangle Calculators ships an update every 26 months, Circle & Sphere every 3 weeks. The most recent releases landed on September 18, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Triangle Calculators | Circle & Sphere |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/triangle-calculators/id1553722101/reviews)** | [4.0 (4 ratings)](https://appshunter.io/ios/app/circle-and-sphere/id1564077078/reviews) |
| Number of ratings | 4 | 4 |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 26 months | **Every 3 weeks** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 39 MB | 180 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [V PUGAZHENTHI](https://appshunter.io/developer/491898049) | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) |

## What reviewers say

### Triangle Calculators

[App page](https://appshunter.io/ios/app/triangle-calculators/id1553722101)

This app simplifies triangle calculations with intuitive inputs and clear diagrams. It covers various triangle types and theorems, offering over 125 calculations and supporting multiple units and languages.

**Highlights:** 125+ triangle calculations, Visual diagrams, Built-in formulas, Multiple unit support, 7 language options, Explores triangle types and theorems

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

**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 Triangle Calculators free?

Triangle Calculators is free to download, with no in-app purchases.

### Is Circle & Sphere free?

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

### Which has better reviews, Triangle Calculators or Circle & Sphere?

Triangle Calculators is rated higher. Triangle Calculators averages 5.0 out of 5 from 4 ratings, while Circle & Sphere averages 4.0 from 4 ratings.

### Do Triangle Calculators or Circle & Sphere have ads?

Triangle Calculators shows ads; Circle & Sphere does not.

### Which is updated more often, Triangle Calculators or Circle & Sphere?

Triangle Calculators ships an update every 26 months, and Circle & Sphere every 3 weeks. Most recently, Triangle Calculators was updated on September 18, 2026 and Circle & Sphere on September 19, 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.*