# GCD and LCM vs Exponent

The clearest difference is price: Exponent at Free against GCD and LCM's $3.99. GCD and LCM's advantage is ads (none vs shown) and device support (4 vs 1). On update cadence and in-app purchases there is nothing between them.

Exponent is free to download; GCD and LCM costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

GCD and LCM ships an update every 19 months, Exponent every 10 months. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | GCD and LCM | Exponent |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | **[2.0 (2 ratings)](https://appshunter.io/ios/app/gcd-and-lcm/id603026694/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 69.2% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 19 months | **Every 10 months** |
| Monetization | Paid | — |
| Size | 14 MB | 4 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Intemodino Group s.r.o.](https://appshunter.io/developer/557849644) | [Katsuhiko Yao](https://appshunter.io/developer/1543188534) |

## What reviewers say

### GCD and LCM

[App page](https://appshunter.io/ios/app/gcd-and-lcm/id603026694)

This app calculates the Greatest Common Divisor (GCD) and Least Common Multiple (LCM) for up to four numbers. It also provides prime factorization and keeps a history of calculations, which can be emailed.

**Highlights:** Calculates GCD/GCF for 2-4 numbers, Calculates LCM for 2-4 numbers, Finds prime factorization, Stores calculation history, Sends results and history via email, Supports portrait and landscape modes

**Features:** Vision Pro support

**In-app purchases:** none


### Exponent

[App page](https://appshunter.io/ios/app/exponent/id6553981892)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GCD and LCM free?

GCD and LCM costs $3.99, with no in-app purchases.

### Is Exponent free?

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

### Do GCD and LCM or Exponent have ads?

Exponent shows ads; GCD and LCM does not.

### Which is updated more often, GCD and LCM or Exponent?

GCD and LCM ships an update every 19 months, and Exponent every 10 months. Most recently, GCD and LCM was updated on October 23, 2026 and Exponent on October 24, 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.*