# Base Math — Binary, Hex & Mental Math

> Binary, Hex & Mental Math (iPhone/iPad app by JOSEPH HAJIME KAWABATA.)

- Source: https://appshunter.io/ios/app/base-math/id6794894315 (this page in markdown: same URL + `.md`)
- Developer: [JOSEPH HAJIME KAWABATA](https://appshunter.io/developer/6787749363)
- Category: Education
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 3 MB
- Languages: American English
- Released: 2026-08-05
- Data updated: 2026-08-06
- User reviews in markdown: https://appshunter.io/ios/app/base-math/id6794894315/reviews.md

## What is Base Math?

Base Math helps you practice mental arithmetic and number-base conversion in bases 2 through 16.

Choose mental math practice for addition, subtraction, multiplication, division, or Random operation practice. You can also convert numbers between any two bases, including binary, decimal, and hexadecimal.

Pick Easy, Medium, or Hard difficulty, choose a specific base, or use random base practice. Base Math includes 10 free questions per day. Upgrade to Base Math Pro with a one-time purchase for unlimited daily practice.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Base Math Pro | $0.99 | one-time |



## Version history (last 1 release)

### 1.0 — 2026-08-05

No release notes.

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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 2026-08-06.*