Circle & Sphere vs CloudLabs Plane Figures
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Circle & Sphere
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.
- Circle calculations (radius, diameter, circumference, area)
- Sphere calculations (surface area, volume)
- Circular sector calculations
- Step-by-step solutions
- Learning videos
- Solution management
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Do your homework instantly. Prepare for exams without stress. Free, complete step-by-step solutions. Enter your values and calculate: - Circle: radius, diameter, circumference and area - Sphere: surface area and volume - Circular sector: arc length and central angle HOW IT WORKS Enter your values in the correct fields and get started. You receive the solution instantly and can share it with friends or classmates. YOUR PERSONAL DATA We don’t need it. Only anonymized data is collected, for example: - which features are used - how many solutions are generated This helps us improve. We cannot identify you. COSTS Everything is free to use. 24/7 access to your solutions. All solution steps always remain complete. If you need many solutions in a short time, various purchase options are available. EXTRAS - Overview of all measures - all length units - curated learning videos - feedback for incorrect inputs - manage your own solutions - app introduction CONTACT Questions and feedback via Discord or directly in the app review.
CloudLabs Plane Figures
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This simulator provides a holoprojector and a Chinese game known as Tangram. You need to assemble the figure shown on the holoprojector using the geometric figures available on the table. The figures are shown by the holoprojector at random.
Screenshots
Verdict
The clearest difference is in-app purchases: CloudLabs Plane Figures at none against Circle & Sphere's 8. CloudLabs Plane Figures also leads on update cadence (daily vs every 3 weeks) and iOS requirement (9.0 vs 15.0). On price, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Circle & Sphere sells 8 one-off in-app purchases. CloudLabs Plane Figures asks for nothing beyond the download.
Circle & Sphere ships an update every 3 weeks, CloudLabs Plane Figures daily. The most recent releases landed on October 2, 2026 and October 3, 2026 respectively.
| Parameter | Circle & Sphere | CloudLabs Plane Figures |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (4 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 3 weeks | Daily — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 180 MB | 92 MB |
| Age rating | 4+ | 4+ |
| Developer | Glindemann, Sennoun, Langer GbR | Jiovany Orozco |
In-app purchases
Circle & Sphere
- +30 User Tokens$0.29
- +1 Convenience Token / 6h, max. +2$0.59
- +2 Convenience Tokens / 6h, max. +4$0.99
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- +150 User Tokens$0.99
- +300 User Tokens$1.49
- +4 Convenience Tokens / 6h, max. +8$1.59
- Remove Ads$2.99
- Lifetime Access$2.99
CloudLabs Plane Figures
No in-app purchases
Questions
Is Circle & Sphere free?
Is CloudLabs Plane Figures free?
Do Circle & Sphere or CloudLabs Plane Figures have ads?
Which is updated more often, Circle & Sphere or CloudLabs Plane Figures?
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