# SAT Messenger vs EWINBOX

The clearest difference is update cadence: SAT Messenger at every 2 weeks against EWINBOX's every 2 months. EWINBOX's advantage is iOS requirement (12.0 vs 15.0). 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.

SAT Messenger ships an update every 2 weeks, EWINBOX every 2 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | SAT Messenger | EWINBOX |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | — | Free |
| Size | 51 MB | 223 MB |
| Requires iOS | 15.0 | **12.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [phwy](https://appshunter.io/developer/1687040072) | [BOE Yiyun Technology Co., Ltd.](https://appshunter.io/developer/1267195265) |

## What reviewers say

### SAT Messenger

[App page](https://appshunter.io/ios/app/sat-messenger/id6448937534)

**Features:** macOS Compatibility

**In-app purchases:** none


### EWINBOX

[App page](https://appshunter.io/ios/app/ewinbox/id6505099399)

This utility allows you to personalize your phone case by displaying custom photos or text on its ink screen. Utilize your phone's NFC to transfer designs for a long-lasting, unique look. The app offers a variety of materials and theme options for DIY creation.

**Highlights:** Customizable ink screen display, NFC photo and text transfer, Personalized DIY themes, Large library of design materials, Regular theme content updates

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

**In-app purchases:** none


## Frequently asked questions

### Is SAT Messenger free?

SAT Messenger is free to download, with no in-app purchases.

### Is EWINBOX free?

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

### Do SAT Messenger or EWINBOX have ads?

Neither SAT Messenger nor EWINBOX shows ads.

### Which is updated more often, SAT Messenger or EWINBOX?

SAT Messenger ships an update every 2 weeks, and EWINBOX every 2 months. Most recently, SAT Messenger was updated on October 24, 2026 and EWINBOX on October 25, 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.*