# UK Postbox vs Grain SA

The clearest difference is iOS requirement: Grain SA at 10.2 against UK Postbox's 15.1. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on August 5, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | UK Postbox | Grain SA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/uk-postbox/id444085689/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 63.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Monetization | Free | — |
| Size | 34 MB | 98 MB |
| Requires iOS | 15.1 | **10.2** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [iPostalMail™](https://appshunter.io/developer/444085692) | [4SIGHT SYSTEMS (PTY) LTD](https://appshunter.io/developer/656095757) |

## What reviewers say

### UK Postbox

[App page](https://appshunter.io/ios/app/uk-postbox/id444085689)

Manage your virtual mailbox and physical address from anywhere. View incoming mail, process items like scanning or forwarding, and send letters online. Requires a UK Postbox account.

**Highlights:** Dashboard overview, Manage inbox items, Send letters online, Account settings, Virtual address management, Mail forwarding

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

**In-app purchases:** none


### Grain SA

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is UK Postbox free?

UK Postbox is free to download, with no in-app purchases.

### Is Grain SA free?

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

### Do UK Postbox or Grain SA have ads?

Neither UK Postbox nor Grain SA shows ads.

### Which is updated more often, UK Postbox or Grain SA?

UK Postbox ships an update monthly, and Grain SA monthly. Most recently, UK Postbox was updated on August 5, 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.*