# OptimiDoc Mobile vs Mercury MPS

The clearest difference is update cadence: Mercury MPS at every 3 weeks against OptimiDoc Mobile's every 8 months. OptimiDoc Mobile's advantage is iOS requirement (9.0 vs 13.0). 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.

OptimiDoc Mobile ships an update every 8 months, Mercury MPS every 3 weeks. The most recent releases landed on September 7, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | OptimiDoc Mobile | Mercury MPS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 weeks** |
| Size | 10 MB | 4 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [OptimiDoc s. r. o.](https://appshunter.io/developer/1081320058) | [docuFORM](https://appshunter.io/developer/1584660805) |

## What reviewers say

### OptimiDoc Mobile

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Mercury MPS

[App page](https://appshunter.io/ios/app/mercury-mps/id1584660803)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is OptimiDoc Mobile free?

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

### Is Mercury MPS free?

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

### Do OptimiDoc Mobile or Mercury MPS have ads?

Neither OptimiDoc Mobile nor Mercury MPS shows ads.

### Which is updated more often, OptimiDoc Mobile or Mercury MPS?

OptimiDoc Mobile ships an update every 8 months, and Mercury MPS every 3 weeks. Most recently, OptimiDoc Mobile was updated on September 7, 2026 and Mercury MPS on September 8, 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.*