E vs Aqaar Supervisor
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.
Aqaar Supervisor
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The Site Supervisor Mobile App is a the quality assurance and quality control (QAQC) processes, conducting facility audits, and streamlining project onboarding procedures for various buildings and assets.
Screenshots
Verdict
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.
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, Aqaar Supervisor every 4 months. The most recent releases landed on June 4, 2026 and September 29, 2026 respectively.
| Parameter | E | Aqaar Supervisor |
|---|---|---|
| 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, iPod |
| Requires iOS | 14.3 | 13.0 — better |
| Further details — not scored | ||
| Size | 108 MB | 51 MB |
| Age rating | 4+ | 4+ |
| Developer | Gema Switzerland GmbH | Nanosoft Engineers India Private Limited |
In-app purchases
E
No in-app purchases
Aqaar Supervisor
No in-app purchases
