# CLF vs Least Common Multiple PRO

The clearest difference is price: CLF at Free against Least Common Multiple PRO's $1.99. Least Common Multiple PRO's advantage is in-app purchases (none vs 3) and update cadence (weekly vs every 2 months). On ads, device support and iOS requirement there is nothing between them.

CLF is free to download; Least Common Multiple PRO costs $1.99 up front. CLF sells 3 in-app purchases, starting at $3.99 per month. Least Common Multiple PRO asks for nothing beyond the download.

CLF ships an update every 2 months, Least Common Multiple PRO weekly. The most recent releases landed on September 25, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | CLF | Least Common Multiple PRO |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Weekly** |
| Size | 27 MB | 179 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Davy Raitt](https://appshunter.io/developer/1795318281) | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) |

## What reviewers say

### CLF

[App page](https://appshunter.io/ios/app/clf-c02-cloud-practitioner/id6746121070)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $3.99 | per month |
| Pro Yearly | $14.99 | per year |
| Pro Lifetime | $19.99 | one-time |


### Least Common Multiple PRO

[App page](https://appshunter.io/ios/app/least-common-multiple-pro/id6792035276)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is CLF free?

CLF is free to download, with in-app purchases available.

### Is Least Common Multiple PRO free?

Least Common Multiple PRO costs $1.99, with no in-app purchases.

### Do CLF or Least Common Multiple PRO have ads?

Neither CLF nor Least Common Multiple PRO shows ads.

### Which is updated more often, CLF or Least Common Multiple PRO?

CLF ships an update every 2 months, and Least Common Multiple PRO weekly. Most recently, CLF was updated on September 25, 2026 and Least Common Multiple PRO on September 21, 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.*