# Software602 Signer vs Grain SA

The clearest difference is in-app purchases: Grain SA at none against Software602 Signer's 2. Grain SA also leads on update cadence (monthly vs every 3 months) and iOS requirement (10.2 vs 17.6). On price, ads and device support there is nothing between them.

Both are free to download. Software602 Signer sells 2 one-off in-app purchases. Grain SA asks for nothing beyond the download.

Software602 Signer ships an update every 3 months, Grain SA monthly. The most recent releases landed on July 21, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | Software602 Signer | Grain SA |
| --- | --- | --- |
| Price | Free | Free |
| 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 | **Monthly** |
| Monetization | Free | — |
| Size | 60 MB | 98 MB |
| Requires iOS | 17.6 | **10.2** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Software602 a.s.](https://appshunter.io/developer/479863340) | [4SIGHT SYSTEMS (PTY) LTD](https://appshunter.io/developer/656095757) |

## 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 |


### Grain SA

[App page](https://appshunter.io/ios/app/grain-sa/id1665831580)

**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 Grain SA free?

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

### Do Software602 Signer or Grain SA have ads?

Neither Software602 Signer nor Grain SA shows ads.

### Which is updated more often, Software602 Signer or Grain SA?

Software602 Signer ships an update every 3 months, and Grain SA monthly. Most recently, Software602 Signer was updated on July 21, 2026 and Grain SA 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.*