# Subtractor - By Mather

> Subtractor - By Mather (iPhone/iPad app by David Kelen.)

- Source: https://appshunter.io/ios/app/subtractor-by-mather/id6742201502 (this page in markdown: same URL + `.md`)
- Developer: [David Kelen](https://appshunter.io/developer/1796712157)
- Category: Education, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 15.6 · 0 MB
- Languages: American English
- Released: 2025-02-19
- Data updated: 2026-09-29
- User reviews in markdown: https://appshunter.io/ios/app/subtractor-by-mather/id6742201502/reviews.md

## What is Subtractor?

Subtractor is a native iOS app coded in Swift, designed as a personal project to help students master subtractions effortlessly. With interactive exercises, customizable practice sessions, and progress tracking, Subtractor creates an engaging learning experience tailored to individual needs. Its sleek, distraction-free interface and responsive design make it a perfect tool for students, parents, and educators seeking to build strong foundational math skills.


## Version history (last 2 releases)

### 1.2.0 — 2025-02-28

This version includes:
  - improved consistency throughout Mather apps

Thank you for using Subtractor - By Mather

### 1.0.0 — 2025-02-19

No release notes.

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## More apps by David Kelen

- [Multiplier - By Mather](https://appshunter.io/ios/app/multiplier-by-mather/id6742082508)
- [Adder - By Mather](https://appshunter.io/ios/app/adder-by-mather/id6742083110)
- [Divider - By Mather](https://appshunter.io/ios/app/divider-by-mather/id6742565268)
- [Blink. - Morse In Your Pocket](https://appshunter.io/ios/app/blink-morse-in-your-pocket/id6743200419)
- [@CalcMaster](https://appshunter.io/ios/app/calcmaster/id6743536646)

All apps by David Kelen: https://appshunter.io/developer/1796712157

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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 2026-09-29.*