# Stepwising

> Stepwising (iPhone/iPad app by Thomas Bretl.)

- Source: https://appshunter.io/ios/app/stepwising/id1315010495 (this page in markdown: same URL + `.md`)
- Developer: [Thomas Bretl](https://appshunter.io/developer/553850818)
- Category: Education
- Price: Free
- Age rating: 4+
- Requires: iOS 8.0 · 38 MB
- Languages: American English
- Released: 2017-11-18
- Data updated: 2026-05-17
- User reviews in markdown: https://appshunter.io/ios/app/stepwising/id1315010495/reviews.md

## What is Stepwising?

Stepwising invites you to explore, play with, and learn about gravity. You can check out Kepler's laws of planetary motion, observe and discover solutions to the 3-body problem, or try to drive a frictionless car around a circular track of ice.

The program closely approximates the motion of stars, planets, moons, and other celestial objects moving through space under the influence of their gravitational fields. It does this recursively: an object's position determines the amount of force on it, the amount of force on it determines its acceleration, its acceleration determines its average velocity over a short period of time, and its average velocity determines its next position. If the time interval between calculations is small, a very good approximation of the motion is produced.


## Version history (last 4 releases)

### 2.2 — 2022-09-21

Bug fixes and privacy update

### 2.1 — 2019-02-15

System incompatibility problems have been fixed.

### 1.1.1 — 2017-11-25

Bug fixes, increased speed, and more information about a planet's orbit.

### 1.0 — 2017-11-18

No release notes.

## Apps similar to Stepwising

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [CloudLabs Logarithmic Integral](https://appshunter.io/ios/app/cloudlabs-logarithmic-integral/id1638205095) | — | Free | Education |
| [Proverbs & Sayings Master Pro](https://appshunter.io/ios/app/proverbs-and-sayings-master-pro/id1439013526) | 5.0 (3) | $4.99 | Education |
| [Metamath](https://appshunter.io/ios/app/metamath/id1348593713) | — | Free | Education |
| [Kepler's Laws](https://appshunter.io/ios/app/keplers-laws/id885067661) | 1.0 (1) | Free | Education |
| [quantum error correction 2](https://appshunter.io/ios/app/quantum-error-correction-2/id6505033728) | — | Free | Education |
| [SenseCart](https://appshunter.io/ios/app/sensecart/id1438485193) | — | Free | Education |

## More apps by Thomas Bretl

- [FactorMan](https://appshunter.io/ios/app/factorman/id564193621)
- [Arithmetic Quilts](https://appshunter.io/ios/app/arithmetic-quilts/id567300241)
- [SquArray](https://appshunter.io/ios/app/squarray/id573931041)
- [GeoFit](https://appshunter.io/ios/app/geofit/id592409225)
- [Celestial Dances](https://appshunter.io/ios/app/celestial-dances/id601885290)
- [Arithmetic Triads](https://appshunter.io/ios/app/arithmetic-triads/id766614387)

All apps by Thomas Bretl: https://appshunter.io/developer/553850818

---

*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 2026-05-17.*