E vs WAGNER Service
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
E
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.
- Real-time equipment control
- Coating parameter adjustment
- Productivity data monitoring
- Data export to PDF
- Maintenance countdown timers
- Automated firmware updates
- Diagnostic data retrieval
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With the useful functions of Gema‘s Electrostatic App you control and monitor your Gema OptiStar 4.0 equipment in real time: Application: All essential OptiStar 4.0 coating parameters are clearly visible on a Smart Device and can be directly adjusted and controlled. Designed for use with manual or automated Gema equipment. Line Management: View coating process productivity data on the device, and export the data in a PDF file. Important statistics and cost calculations from production are automatically generated. Maintenance countdown timers can easily be viewed at the touch of a button. Setup: With this function the configuration of the OptiStar 4.0 is defined. For automated equipment use, OptiStar 4.0 can be controlled as single device or in a group of control units. System information and diagnostic data are easily retrievable and can be sent via e-mail. The automated firmware update keeps your OptiStar 4.0 up to date.
WAGNER Service
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With the WAGNER service app you receive fast and reliable support - directly from a qualified member of our service team. Fast response time: Thanks to the live audio and video transmission, the WAGNER service employee can effectively support you in the shortest possible time in the event of system problems, without having to deal directly with I have to be there for you. Comprehensive support if required: Thanks to the fast service deployment, we can jointly ensure your plant availability and productivity. Transparent documentation: The documentation function ensures the traceability of the services provided and thus enables a continuous improvement process. Smooth communication: To avoid misunderstandings in communication, text and voice messages between you and the service employee in the WAGNER HelpDesk can be translated into several languages.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | E | WAGNER Service |
|---|---|---|
| Price | Free | Free |
| Rating | 2.7 (7 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 9 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 14.3 | 11.0 — better |
| Further details — not scored | ||
| Size | 108 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | Gema Switzerland GmbH | J. Wagner GmbH |
In-app purchases
E
No in-app purchases
WAGNER Service
No in-app purchases
