# GPS MOS vs Sign Documents

The clearest difference is in-app purchases: GPS MOS at none against Sign Documents's 5. Sign Documents's advantage is update cadence (weekly vs every 12 months) and iOS requirement (15.0 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. Sign Documents sells 5 in-app purchases, starting at $4.99 per 7 days. GPS MOS asks for nothing beyond the download.

GPS MOS ships an update every 12 months, Sign Documents weekly. The most recent releases landed on October 10, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | GPS MOS | Sign Documents |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.7 (158 ratings)](https://appshunter.io/ios/app/sign-documents-esign-pdf/id6502787198/reviews)** |
| Number of ratings | — | **158** |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 12 months | **Weekly** |
| Monetization | — | Free with in-app purchases |
| Size | 62 MB | 34 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [LEONARDO JOSE ARRIETA NARVAEZ](https://appshunter.io/developer/1629559826) | [Julia Kucharska](https://appshunter.io/developer/1747807368) |

## What reviewers say

### GPS MOS

[App page](https://appshunter.io/ios/app/gps-mos/id6475648656)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sign Documents

[App page](https://appshunter.io/ios/app/sign-documents-esign-pdf/id6502787198)

Easily sign and manage your documents with a built-in scanner. Digitize paper, add signatures and stamps, and share your finalized files. Supports various document types for a streamlined workflow.

**Highlights:** Add digital signatures, Insert stamps, Scan documents, Create documents from photos, Sign PDF, DOC, XLS, Share and print documents

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly PRO | $4.99 | per 7 days |
| Weekly PRO Subscription | $4.99 | per 7 days |
| Weekly Premium | $9.99 | per 7 days |
| Annual PRO | $29.99 | per year |
| Annual Premium | $49.99 | per year |


## Frequently asked questions

### Is GPS MOS free?

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

### Is Sign Documents free?

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

### Do GPS MOS or Sign Documents have ads?

Neither GPS MOS nor Sign Documents shows ads.

### Which is updated more often, GPS MOS or Sign Documents?

GPS MOS ships an update every 12 months, and Sign Documents weekly. Most recently, GPS MOS was updated on October 10, 2026 and Sign Documents on October 21, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*