Ontech SMS vs Zpark
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ontech SMS
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This is the official Ontech Control application for Iphone. It makes it simple to remotely control your Ontech GSM Unit. Just tap on the buttons and the app will automatically create an SMS ready to send. The app uses SMS for communication with the GSM unit and the SMS cost will be charged as normal.
Zpark
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Do you have a Zpark charger? With our app you get the complete Zpark experience! After your Zpark charger is installed, you can easily create your Zpark account and register your device. Now, you're ready to start charging In the app, you can monitor both charging and engine heating sessions, check charging speed and capacity, and schedule the engine heater based on your departure time – whether for a single day or using a weekly schedule. You'll also have access to your usage history, giving you full control over your devices. We continuously update the app with new and exciting features!
Screenshots
Verdict
The clearest difference is update cadence: Zpark at monthly against Ontech SMS's every 9 months. Ontech SMS's advantage is iOS requirement (8.1 vs 16.6). 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.
Ontech SMS ships an update every 9 months, Zpark monthly. The most recent releases landed on October 4, 2026 and October 1, 2026 respectively.
| Parameter | Ontech SMS | Zpark |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 8.1 — better | 16.6 |
| Further details — not scored | ||
| Size | 16 MB | 70 MB |
| Age rating | 4+ | 4+ |
| Developer | Onvako AB | Grepit AB |
In-app purchases
Ontech SMS
No in-app purchases
Zpark
No in-app purchases
