# EngiBOX vs SINOX

The clearest difference is update cadence: SINOX at every 4 months against EngiBOX's every 48 months. EngiBOX's advantage is iOS requirement (9.0 vs 15.6). 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.

EngiBOX ships an update every 48 months, SINOX every 4 months. The most recent releases landed on October 5, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | EngiBOX | SINOX |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 48 months | **Every 4 months** |
| Size | 2 MB | 2 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [AvMap](https://appshunter.io/developer/404591798) | [BKeen International Corporated](https://appshunter.io/developer/794445249) |

## What reviewers say

### EngiBOX

[App page](https://appshunter.io/ios/app/engibox/id972715128)

**Features:** macOS Compatibility

**In-app purchases:** none


### SINOX

[App page](https://appshunter.io/ios/app/sinox/id6744326778)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is EngiBOX free?

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

### Is SINOX free?

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

### Do EngiBOX or SINOX have ads?

Neither EngiBOX nor SINOX shows ads.

### Which is updated more often, EngiBOX or SINOX?

EngiBOX ships an update every 48 months, and SINOX every 4 months. Most recently, EngiBOX was updated on October 5, 2026 and SINOX on October 3, 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.*