# Circle and Sphere Pro vs EGK MolecuLens AR

The clearest difference is price: Circle and Sphere Pro at $2.99 against EGK MolecuLens AR's $19.99. Circle and Sphere Pro also leads on update cadence (monthly vs every 9 months) and iOS requirement (15.0 vs 18.4). On ads, in-app purchases and device support there is nothing between them.

Circle and Sphere Pro costs $2.99 and EGK MolecuLens AR $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Circle and Sphere Pro ships an update monthly, EGK MolecuLens AR every 9 months. The most recent releases landed on October 25, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Circle and Sphere Pro | EGK MolecuLens AR |
| --- | --- | --- |
| Price | **$2.99** | $19.99 |
| Rating | **[4.9 (7 ratings)](https://appshunter.io/ios/app/circle-and-sphere-pro/id1564077280/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 9 months |
| Monetization | Free | — |
| Size | 180 MB | 5 MB |
| Requires iOS | **15.0** | 18.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) | [Isaac Eng Gian Khor](https://appshunter.io/developer/1808933315) |

## What reviewers say

### 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


### EGK MolecuLens AR

[App page](https://appshunter.io/ios/app/egk-moleculens-ar/id6745537821)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Circle and Sphere Pro free?

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

### Is EGK MolecuLens AR free?

EGK MolecuLens AR costs $19.99, with no in-app purchases.

### Do Circle and Sphere Pro or EGK MolecuLens AR have ads?

Neither Circle and Sphere Pro nor EGK MolecuLens AR shows ads.

### Which is updated more often, Circle and Sphere Pro or EGK MolecuLens AR?

Circle and Sphere Pro ships an update monthly, and EGK MolecuLens AR every 9 months. Most recently, Circle and Sphere Pro was updated on October 25, 2026 and EGK MolecuLens AR on October 16, 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.*