# Least Common Multiple Solver vs SpeakSignal

The clearest difference is in-app purchases: SpeakSignal at none against Least Common Multiple Solver's 7. SpeakSignal also leads on update cadence (every 2 days vs every 11 days). Least Common Multiple Solver's advantage is device support (3 vs 1) and iOS requirement (15.0 vs 17.0). On price and ads there is nothing between them.

Both are free to download. Least Common Multiple Solver sells 7 one-off in-app purchases. SpeakSignal asks for nothing beyond the download.

Least Common Multiple Solver ships an update every 11 days, SpeakSignal every 2 days. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | Least Common Multiple Solver | SpeakSignal |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 11 days | **Every 2 days** |
| Size | 179 MB | 373 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Glindemann, Sennoun, Langer GbR](https://appshunter.io/developer/1024972809) | [Marbatis Systems LLC](https://appshunter.io/developer/6793675920) |

## What reviewers say

### Least Common Multiple Solver

[App page](https://appshunter.io/ios/app/least-common-multiple-solver/id6792020111)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| +30 User Tokens | $0.29 | one-time |
| +1 Convenience Token / 6h, max. +2 | $0.59 | one-time |
| +150 User Tokens | $0.99 | one-time |
| +2 Convenience Tokens / 6h, max. +4 | $0.99 | one-time |
| +300 User Tokens | $1.49 | one-time |
| +4 Convenience Tokens / 6h, max. +8 | $1.59 | one-time |
| Lifetime Access | $1.99 | one-time |


### SpeakSignal

[App page](https://appshunter.io/ios/app/speaksignal/id6813969118)

**In-app purchases:** none


## Frequently asked questions

### Is Least Common Multiple Solver free?

Least Common Multiple Solver is free to download, with in-app purchases available.

### Is SpeakSignal free?

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

### Do Least Common Multiple Solver or SpeakSignal have ads?

Neither Least Common Multiple Solver nor SpeakSignal shows ads.

### Which is updated more often, Least Common Multiple Solver or SpeakSignal?

Least Common Multiple Solver ships an update every 11 days, and SpeakSignal every 2 days. Most recently, Least Common Multiple Solver was updated on November 2, 2026 and SpeakSignal on November 6, 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.*