VBusTouch free vs OPTIMISER POWER
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
VBusTouch free
Monitor and visualize solar system data and progression charts from anywhere in the world. Requires a RESOL controller with a VBus interface and a datalogger connected to the internet.
- Live data display
- Progression charts
- Hydraulic scheme view
- Landscape orientation chart display
- Portrait orientation data display
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VBusTouch is a software especially designed for the Apple iPhone and iPod touch. It displays both live data and progression charts of the solar system at any place in the world, provided that the system is run by a RESOL controller equipped with a VBus® interface and a datalogger connected to the Internet via LAN. If the iPhone or the iPod touch are in portrait orientation, a hydraulic scheme and live data of the system are displayed. As soon as the device is turned into landscape orientation, the integrated accelerometer switches to the display of a progression chart.
OPTIMISER POWER
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OPTIMISER POWER, Photon Solar's Data Cloud Center, is used to display the generating data of every solar module, summarize the power and energy yield, and manage the entire solar system. Functions: 1. Dynamically display the status of entire PV power station and every module in real time 2. Promptly locate the system failure and inform user by email or short message 3. Remotely deactivate the optimizers for maintenance or emergency purposes 4. Multi terminal login: PC, PAD and smart phone 5. Historical data query, big data analysis and automatical chart report
Screenshots
Verdict
The clearest difference is update cadence: OPTIMISER POWER at fortnightly against VBusTouch free's every 24 months. VBusTouch free's advantage is iOS requirement (7.0 vs 13.0). 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.
VBusTouch free ships an update every 24 months, OPTIMISER POWER fortnightly. The most recent releases landed on October 31, 2026 and November 7, 2026 respectively.
| Parameter | VBusTouch free | OPTIMISER POWER |
|---|---|---|
| Price | Free | Free |
| Rating | 2.0 (4 ratings) — better | — |
| Positive reviews | 42.9% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 24 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 7.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 4 MB | 39 MB |
| Age rating | 4+ | 17+ |
| Developer | RESOL GmbH | Khalid BEY |
In-app purchases
VBusTouch free
No in-app purchases
OPTIMISER POWER
No in-app purchases
Questions
Is VBusTouch free free?
Is OPTIMISER POWER free?
Do VBusTouch free or OPTIMISER POWER have ads?
Which is updated more often, VBusTouch free or OPTIMISER POWER?
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