# Software602 Signer vs Sx3App

The clearest difference is price: Software602 Signer at Free against Sx3App's $9.99. Sx3App's advantage is in-app purchases (none vs 2). On update cadence, ads, device support and iOS requirement there is nothing between them.

Software602 Signer is free to download; Sx3App costs $9.99 up front. Software602 Signer sells 2 one-off in-app purchases. Sx3App asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on July 21, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Software602 Signer | Sx3App |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/software602-signer/id947419894/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 months | Every 3 months |
| Monetization | Free | — |
| Size | 60 MB | 1 MB |
| Requires iOS | 17.6 | 17.6 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Software602 a.s.](https://appshunter.io/developer/479863340) | [Emtron s.r.o](https://appshunter.io/developer/1453715625) |

## What reviewers say

### Software602 Signer

[App page](https://appshunter.io/ios/app/software602-signer/id947419894)

This premium tool facilitates electronic signatures, time stamps, and data mailbox management. It supports authorization of various document types and mobile photos with GPS data, utilizing qualified digital signatures and remote certificate storage.

**Highlights:** Electronic signature authorization, Time stamping, Data mailbox management, Support for PDF, PDF/A, Office 365 documents, XML form data authorization, Mobile photo authorization with GPS, Qualified digital signature creation

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Next year of Signer usage | $49.99 | one-time |
| Signer Licence + 1 year | $129.99 | one-time |


### Sx3App

[App page](https://appshunter.io/ios/app/sx3app/id6467041210)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Software602 Signer free?

Software602 Signer is free to download, with in-app purchases available.

### Is Sx3App free?

Sx3App costs $9.99, with no in-app purchases.

### Do Software602 Signer or Sx3App have ads?

Neither Software602 Signer nor Sx3App shows ads.

### Which is updated more often, Software602 Signer or Sx3App?

Software602 Signer ships an update every 3 months, and Sx3App every 3 months. Most recently, Software602 Signer was updated on July 21, 2026 and Sx3App on September 12, 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.*