whatwatt vs OXYGEN
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
whatwatt
This utility app is preparing for future enhancements. Developers are working on new functionalities that will be revealed soon.
- Future feature groundwork
- Upcoming enhancements
- Developer updates
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The app that allows you to install whatwatt Go on a compatible smart meter, receive smart meter data in real time and connect your smart meter to services. Made for Switzerland.
OXYGEN
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OXYGEN-GO by DEWETRON enables seamless connectivity from a mobile device to OXYGEN running on the DAQ system via SCPI. Users can preview analog hardware channel data, review and modify hardware channel settings, and remotely start, stop, or pause recordings. This functionality supports test and measurement engineers during instrumentation and sensor checks—both before and after measurements—especially when the DUT and testbed control are located separately. Prerequisites: - OXYGEN's SCPI interface must be enabled - DAQ system and mobile device must be connected to the same network
Screenshots
Verdict
The clearest difference is iOS requirement: OXYGEN at 15.1 against whatwatt's 17.0. On price, update cadence, 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.
whatwatt ships an update every 2 weeks, OXYGEN every 3 weeks. The most recent releases landed on November 4, 2026 and October 30, 2026 respectively.
| Parameter | whatwatt | OXYGEN |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 weeks — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 53 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | whatwatt AG | DEWETRON GmbH |
In-app purchases
whatwatt
No in-app purchases
OXYGEN
No in-app purchases
