MARSTEK vs Onntrack Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MARSTEK
Monitor your solar energy system in real-time. Optimize for energy independence, outage protection, or savings by setting your preferences. Control your system remotely and receive instant alerts.
- Real-time solar energy monitoring
- Customizable optimization settings
- Remote system control
- Instant alerts
- Energy independence focus
- Outage protection settings
- Savings optimization
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With the Marstek app, you can monitor solar energy in real-time. Set your preferences to optimize for energy independence, outage protection, or savings. Control your system from anywhere with remote access and instant alerts.
Onntrack Pro
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Track and monitor your assets in real-time with Onntrack GPS Tracker. Whether it's your vehicles, assets or other belongins, stay connected and in control with precise location updates. Set up geofences, receive alerts, access historical data, and enjoy battery optimization. Download now for peace of mind and seamless tracking solutions.
Screenshots
Verdict
The clearest difference is update cadence: Onntrack Pro at every 3 days against MARSTEK's every 2 weeks. Onntrack Pro also leads on iOS requirement (12.0 vs 15.5). 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.
MARSTEK ships an update every 2 weeks, Onntrack Pro every 3 days. The most recent releases landed on September 30, 2026 and September 13, 2026 respectively.
| Parameter | MARSTEK | Onntrack Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (11 ratings) — better | — |
| Positive reviews | 72.0% of reviews | — |
| Number of ratings | 11 — better | — |
| Update frequency | Every 2 weeks | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.5 | 12.0 — better |
| Further details — not scored | ||
| Size | 210 MB | 113 MB |
| Age rating | 12+ | 17+ |
| Developer | Hamedata Technology Co., Limited | H-gen Beheer B.V. |
In-app purchases
MARSTEK
No in-app purchases
Onntrack Pro
No in-app purchases
