Circle & Sphere
Glindemann, Sennoun, Langer GbR Education iPhoneiPadiPod touch
Circle & Sphere is a free Education app for iPhone and iPad by Glindemann, Sennoun, Langer GbR. Rated 4.0/5 from 4 ratings. Requires iOS 15.0.
- Rating
- 4.0
- 4 ratings
- Price
- Free
- on the App Store
- Size
- 180 MB
- Age 4+
- Updated
- Oct 20
- 2026 · v3.2.4
Screenshots
About Circle & Sphere
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.
What’s new
Version 3.2.4 · Updated October 20, 2026
Maintenance update.
App privacy
The developer, Glindemann, Sennoun, Langer GbR, reported these privacy practices to Apple.
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Location: Coarse Location
- Identifiers: Device ID
- Usage Data: Product Interaction
- Diagnostics: Crash Data, Performance Data
Used for: Analytics, App Functionality