# MultiAlarm GPS vs OptimiDoc Mobile

The clearest difference is update cadence: MultiAlarm GPS at every 2 months against OptimiDoc Mobile's every 8 months. OptimiDoc Mobile's advantage is iOS requirement (9.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

MultiAlarm GPS ships an update every 2 months, OptimiDoc Mobile every 8 months. The most recent releases landed on October 4, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | MultiAlarm GPS | OptimiDoc Mobile |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 8 months |
| Size | 10 MB | 10 MB |
| Requires iOS | 14.0 | **9.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Multi Alarm Zrt.](https://appshunter.io/developer/1498449911) | [OptimiDoc s. r. o.](https://appshunter.io/developer/1081320058) |

## What reviewers say

### MultiAlarm GPS

[App page](https://appshunter.io/ios/app/multialarm-gps/id507979611)

**Features:** macOS Compatibility

**In-app purchases:** none


### OptimiDoc Mobile

[App page](https://appshunter.io/ios/app/optimidoc-mobile/id1081320059)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MultiAlarm GPS free?

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

### Is OptimiDoc Mobile free?

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

### Do MultiAlarm GPS or OptimiDoc Mobile have ads?

Neither MultiAlarm GPS nor OptimiDoc Mobile shows ads.

### Which is updated more often, MultiAlarm GPS or OptimiDoc Mobile?

MultiAlarm GPS ships an update every 2 months, and OptimiDoc Mobile every 8 months. Most recently, MultiAlarm GPS was updated on October 4, 2026 and OptimiDoc Mobile on October 20, 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.*