# E vs WAGNER Service

The clearest difference is update cadence: WAGNER Service at every 4 months against E's every 9 months. WAGNER Service also leads on iOS requirement (11.0 vs 14.3). 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, WAGNER Service every 4 months. The most recent releases landed on June 4, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | E | WAGNER Service |
| --- | --- | --- |
| 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 | 45 MB |
| Requires iOS | 14.3 | **11.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Gema Switzerland GmbH](https://appshunter.io/developer/1333995000) | [J. Wagner GmbH](https://appshunter.io/developer/1452280720) |

## 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


### WAGNER Service

[App page](https://appshunter.io/ios/app/wagner-service/id1457542611)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is E free?

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

### Is WAGNER Service free?

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

### Do E or WAGNER Service have ads?

Neither E nor WAGNER Service shows ads.

### Which is updated more often, E or WAGNER Service?

E ships an update every 9 months, and WAGNER Service every 4 months. Most recently, E was updated on June 4, 2026 and WAGNER Service on September 9, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*