GSM Dialer vs SWI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GSM Dialer
Control and program compatible GSM Auto Dialers remotely from your iPhone. Receive instant voice or SMS alerts for security and environmental events. Manage dialer settings, phone numbers, and SMS messages with ease.
- Remote On/Off control
- Activate dialer outputs
- Program up to 9 phone numbers
- Select numbers based on trigger
- Create custom SMS messages
- Configure test calls
- Reset to factory defaults
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This APP enables you to program and initiate certain actions with compatible GSM Auto Dialers quickly and easily from your iPhone. GSM Auto Dialers are used extensively within the Security and Environmental Monitoring Industry to notify you remotely via a voice message or SMS if an intrusion or event has occurred. Before downloading and attempting to use this APP, check with your Installer or Supplier whether your GSM Auto Dialer is compatible with this APP. Actions that can be accomplished by using this APP include: • Turn On/Off your Dialer remotely • Activate one of the Dialer’s outputs • Program up to 9 different Telephone Numbers the Dialer should call if one of its inputs is triggered • Select all or just some of the 9 Telephone Numbers to be called according to which input has been triggered • Create different SMS messages that are sent out on each trigger • Select whether regular Test Calls are made by the Dialer • Return the Dialer to Factory default settings
SWI
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Companion app for Systems With Intelligence IoT solutions, access features of the web IoT dashboard from the convenience of your phone
Screenshots
Verdict
The clearest difference is update cadence: SWI at every 4 months against GSM Dialer's every 10 months. GSM Dialer's advantage is iOS requirement (13.0 vs 15.1). 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.
GSM Dialer ships an update every 10 months, SWI every 4 months. The most recent releases landed on October 29, 2026 and October 14, 2026 respectively.
| Parameter | GSM Dialer | SWI |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 100.0% of reviews | — |
| Update frequency | Every 10 months | Every 4 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 5 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | Keystone Electronics Limited | System With Intellgence Inc |
In-app purchases
GSM Dialer
No in-app purchases
SWI
No in-app purchases
