# 4i OEEasy vs RexShell

The clearest difference is update cadence: RexShell at every 3 weeks against 4i OEEasy's every 2 months. 4i OEEasy's advantage is iOS requirement (13.0 vs 17.0). 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.

4i OEEasy ships an update every 2 months, RexShell every 3 weeks. The most recent releases landed on November 3, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | 4i OEEasy | RexShell |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/4i-oeeasy/id1499544058/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 41 MB | 35 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [4i Platform Inc.](https://appshunter.io/developer/1566439336) | [RexShell LLC](https://appshunter.io/developer/1772851484) |

## What reviewers say

### 4i OEEasy

[App page](https://appshunter.io/ios/app/4i-oeeasy/id1499544058)

This app provides manufacturers with real-time OEE reports and online status monitoring for production lines. It helps increase machine productivity by visualizing efficiency rates and analyzing uptime/downtime across all your devices.

**Highlights:** Automatic OEE reports, Online production line monitoring, Uptime and downtime analysis, Cross-platform accessibility, Quick and easy setup, Machine efficiency visualization

**Features:** macOS Compatibility

**In-app purchases:** none


### RexShell

[App page](https://appshunter.io/ios/app/rexshell/id6736643636)

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

**In-app purchases:** none


## Frequently asked questions

### Is 4i OEEasy free?

4i OEEasy is free to download, with no in-app purchases.

### Is RexShell free?

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

### Do 4i OEEasy or RexShell have ads?

Neither 4i OEEasy nor RexShell shows ads.

### Which is updated more often, 4i OEEasy or RexShell?

4i OEEasy ships an update every 2 months, and RexShell every 3 weeks. Most recently, 4i OEEasy was updated on November 3, 2026 and RexShell on November 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.*