GSM vs Primis Mobile
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GSM
Control industrial devices remotely via SMS commands. This application allows users to send text messages to a specific GSM-RELAY unit for remote operation and parameter configuration. Requires a WAFER GSM-RELAY hardware unit to function.
- Seven channels remote control
- Send SMS for remote control
- Remote parameter configuration
- Industrial control applications
- Requires WAFER GSM-RELAY unit
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GSM-RELAY is a seven channels remote control device for industrial Control. Easy to use this software to send the SMS to Wafer GSM-RELAY device to do the remote control and remote parameters config. This application requires WAFER GSM-RELAY unit.
Primis Mobile
Manage your access control system remotely. Lock or unlock doors, set schedules, and monitor system status from your mobile device.
- Remote lock/unlock
- Schedule access
- Check system status
- Mobile access control
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Primis® Mobile App by Hirsch Secure, Inc. gives small business owners the ability to access their Primis access control system from anywhere. Lock and Unlock doors, set schedules, or check the system status, it's all at your fingertips with Primis Mobile.
Screenshots
Verdict
The clearest difference is rating: Primis Mobile at 5.0 against GSM's 2.3. GSM's advantage is update cadence (every 2 months vs every 9 months) and iOS requirement (7.0 vs 15.6). On price, ratings volume, ads and in-app purchases 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.
Primis Mobile holds the better App Store score, 5.0 against 2.3. Both are backed by a comparable volume of ratings — 3 and 4 respectively.
GSM ships an update every 2 months, Primis Mobile every 9 months. The most recent releases landed on October 19, 2026 and October 24, 2026 respectively.
| Parameter | GSM | Primis Mobile |
|---|---|---|
| Price | Free | Free |
| Rating | 2.3 (3 ratings) | 5.0 (4 ratings) — better |
| Positive reviews | 16.7% of reviews | — |
| Number of ratings | 3 | 4 — better |
| Update frequency | Every 2 months — better | Every 9 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 7.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 3 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | 艳丽 刘 | Identiv, Inc. |
Customer experience
GSM
Primis Mobile
In-app purchases
GSM
No in-app purchases
Primis Mobile
No in-app purchases
