# E vs Aqaar Supervisor

The clearest difference is update cadence: Aqaar Supervisor at every 4 months against E's every 9 months. 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.

E ships an update every 9 months, Aqaar Supervisor every 4 months. The most recent releases landed on June 4, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | E | Aqaar Supervisor |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.7 (7 ratings)](https://appshunter.io/ios/app/e-app/id1333995001/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 4 months** |
| Monetization | Free | — |
| Size | 108 MB | 51 MB |
| Requires iOS | 14.3 | **13.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Gema Switzerland GmbH](https://appshunter.io/developer/1333995000) | [Nanosoft Engineers India Private Limited](https://appshunter.io/developer/1193545309) |

## What reviewers say

### E

[App page](https://appshunter.io/ios/app/e-app/id1333995001)

Control and monitor Gema OptiStar 4.0 electrostatic coating equipment in real time. View and adjust coating parameters, track productivity data, and manage equipment configuration. Includes automated firmware updates and diagnostic reporting.

**Highlights:** Real-time equipment control, Coating parameter adjustment, Productivity data monitoring, Data export to PDF, Maintenance countdown timers, Automated firmware updates, Diagnostic data retrieval

**Features:** macOS Compatibility

**In-app purchases:** none


### Aqaar Supervisor

[App page](https://appshunter.io/ios/app/aqaar-supervisor/id6752916982)

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

**In-app purchases:** none


## Frequently asked questions

### Is E free?

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

### Is Aqaar Supervisor free?

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

### Do E or Aqaar Supervisor have ads?

Neither E nor Aqaar Supervisor shows ads.

### Which is updated more often, E or Aqaar Supervisor?

E ships an update every 9 months, and Aqaar Supervisor every 4 months. Most recently, E was updated on June 4, 2026 and Aqaar Supervisor on September 29, 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.*