# Johannes Kepler — Astronomer & Mathematician

> Astronomer & Mathematician (iPhone/iPad app by Ventura Educational Systems.)

- Source: https://appshunter.io/ios/app/johannes-kepler/id1456789915 (this page in markdown: same URL + `.md`)
- Developer: [Ventura Educational Systems](https://appshunter.io/developer/371324172)
- Category: Education, Reference
- Price: $1.99
- Age rating: 4+
- Requires: iOS 12.0 · 86 MB
- Languages: English
- Released: 2019-03-23
- Data updated: 2025-12-29
- User reviews in markdown: https://appshunter.io/ios/app/johannes-kepler/id1456789915/reviews.md

## What is Johannes Kepler?

With this app students learn about the life and contributions to astronomy and mathematics made by Johannes Kepler. It discusses his major scientific theories including the application of Kepler's ideas to the understanding of the motion of the planets in our solar system.

Johannes Kepler is considered to be one of the greatest astronomers of the seventeenth century. His major breakthrough in defining the mathematics that explains the motion of the planets. He discovered that planets moved in elliptical orbits, not circular as had been believed since the time of Ptolemy. Johannes Kepler was a major figure in the 17th-century scientific revolution

Using this app students learn about his amazing accomplishments. It includes introductory information about astronomy. We hope that this app will inspire students to pursue careers in science. Students will enjoy using this graphically illustrated, interactive learning tool. The timeline feature presents key events in the development of our modern understanding of the structure of the solar system. Tapping on timeline points brings up descriptions of historically significant events and the role that Johannes Kepler played. A quiz function helps students demonstrate their comprehension of the reading material. Key scientific and mathematical concepts are shown in colorful illustrations. We hope this app will inspire students to study astronomy. The app shows that Johannes Kepler certainly deserves the place he has earned in the history of science.


## Version history (last 5 releases)

### 2.3 — 2024-03-19

This version provides an update to recommended settings and includes additional information about Johannes Kepler.

### 2.1 — 2023-12-19

This version provides an update to recommended settings.

### 2.0 — 2022-10-23

This version provides an update to recommended settings.  It also has improvements some of the diagrams.

### 1.2 — 2019-09-04

This version has improvements in the pronunciation of certain words when the speech option is used.

### 1.1 — 2019-03-29

This update provides a correction to an error in the text.

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## More apps by Ventura Educational Systems

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- [Plexers](https://appshunter.io/ios/app/plexers/id411518808)

All apps by Ventura Educational Systems: https://appshunter.io/developer/371324172

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2025-12-29.*