# Modular Arithmetic vs Baselproblem

The clearest difference is price: Baselproblem at Free against Modular Arithmetic's $1.99. Modular Arithmetic's advantage is iOS requirement (12.0 vs 15.0). On update cadence, ads, in-app purchases and device support there is nothing between them.

Baselproblem is free to download; Modular Arithmetic costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Modular Arithmetic ships an update every 12 months, Baselproblem every 11 months. The most recent releases landed on October 14, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | Modular Arithmetic | Baselproblem |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/modular-arithmetic/id687735575/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 12 months | **Every 11 months** |
| Monetization | Paid | — |
| Size | 2 MB | 0 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Benjamin Burton](https://appshunter.io/developer/687735578) | [Andreas Horvath](https://appshunter.io/developer/1484572340) |

## What reviewers say

### Modular Arithmetic

[App page](https://appshunter.io/ios/app/modular-arithmetic/id687735575)

Perform calculations with remainders using a chosen modulus. Supports large numbers, fast modular division and exponentiation, and displays a full calculation transcript. Ideal for understanding modular arithmetic's applications in math and computer science.

**Highlights:** Fixed modulus selection, Arbitrarily large numbers, Fast modular division and exponentiation, Full calculation transcript, Order of operations convention, External keyboard and Siri Shortcuts support

**Features:** Vision Pro support

**In-app purchases:** none


### Baselproblem

[App page](https://appshunter.io/ios/app/baselproblem/id1484572342)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Modular Arithmetic free?

Modular Arithmetic costs $1.99, with no in-app purchases.

### Is Baselproblem free?

Baselproblem is free to download, with no in-app purchases.

### Do Modular Arithmetic or Baselproblem have ads?

Neither Modular Arithmetic nor Baselproblem shows ads.

### Which is updated more often, Modular Arithmetic or Baselproblem?

Modular Arithmetic ships an update every 12 months, and Baselproblem every 11 months. Most recently, Modular Arithmetic was updated on October 14, 2026 and Baselproblem on September 29, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*