E vs XenCenterAPP
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.
XenCenterAPP
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XenCenterAPP allows anyone, anywhere to connect and manage their XenServer servers in a simple and intelligent way! Manage all your VMs, start, reboot, shutdown, show details and manage snapshots. It's simple and fast. You can add and manage as many hosts as you want. The application does not transmit data to us or to an external web service. All data is stored on the device where the application runs.
Screenshots
Verdict
The clearest difference is price: E at Free against XenCenterAPP's $19.99. XenCenterAPP's advantage is update cadence (every 2 months vs every 9 months) and iOS requirement (12.0 vs 14.3). On 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
E is free to download; XenCenterAPP costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.
E ships an update every 9 months, XenCenterAPP every 2 months. The most recent releases landed on October 5, 2026 and October 12, 2026 respectively.
| Parameter | E | XenCenterAPP |
|---|---|---|
| Price | Free — better | $19.99 |
| Rating | 2.7 (7 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Every 9 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 14.3 | 12.0 — better |
| Further details — not scored | ||
| Size | 108 MB | 27 MB |
| Age rating | 4+ | 17+ |
| Developer | Gema Switzerland GmbH | HYDRA SOLUTIONS SRL SEMPLIFICATA |
In-app purchases
E
No in-app purchases
XenCenterAPP
No in-app purchases









