T vs Netzero for Powerwall
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
T
Control and configure your domestic hot water system remotely via a Wi-Fi enabled thermostat. Turn traditional water heaters into smart home devices for convenient temperature management from your iOS device.
- Remote hot water control
- Configure water temperature
- Smart home integration
- Wi-Fi enabled connectivity
- iOS device compatibility
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The T-Smart app from Tesla UK Ltd allows control and configuration of your domestic hot water via the T-Smart thermostat. The T-Smart solution enables traditional hot water cylinders to become an integrated smart home device. This Wi-Fi enabled control allows for wireless connection to your home's water heater. The T-Smart app allows you to control and configure your planners or water temperature via your iOS device remotely.
Netzero for Powerwall
Automate your home energy system to maximize savings and monitor your Powerwall's health. Integrate with utility providers for dynamic pricing and receive alerts for solar or battery issues. Gain insights into energy production and use your device as a home energy dashboard.
- Powerwall automation and scheduling
- Utility tariff integration
- Solar production monitoring
- Powerwall health alerts
- Home energy dashboard
- Advanced diagnostics
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Increase savings with Powerwall automation and utility integrations. Connect your energy devices, monitor Powerwall health, and detect solar issues early. Advanced features require a subscription after a 30-day free trial. - Take charge of your Powerwall. Schedule charging, discharging, and backup settings. Export stored energy to the grid when export prices are highest, or before a period of cheap or free electricity. Prevent unnecessary discharge during EV charging and improve efficiency. Automate your home energy with device integrations. - Connect your EV charger, EV, and heating/cooling devices. Pre-heat or pre-cool your home when electricity is cheap, or pause EV charging and heating/cooling during outages. Supports 500+ devices across 50+ brands. - Octopus Energy users benefit from automatic Powerwall charging during Intelligent Octopus Go sessions. Supports Agile Octopus, Tibber, Amber Electric, ComEd Hourly Pricing, and Ameren Power Smart Pricing. Netzero configures Powerwall with live pricing to help cut your bills. - Receive automatic alerts for solar or battery issues. Track Powerwall capacity and degradation to stay within warranty limits. - Get daily, monthly, and yearly production estimates. Spot solar performance issues early. Use the app on your tablet or phone as an always-on home energy dashboard. - Download detailed data, view string-level solar performance, access weather data and developer tools, and enjoy ongoing feature updates. Apple Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is review sentiment: Netzero for Powerwall at 90% against T's 24%. Netzero for Powerwall also leads on update cadence (weekly vs every 6 weeks). T's advantage is in-app purchases (none vs 2) and iOS requirement (13.0 vs 16.4). On price, ads 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. Netzero for Powerwall sells 2 in-app purchases, starting at $6.99 per month. T asks for nothing beyond the download.
T ships an update every 6 weeks, Netzero for Powerwall weekly. The most recent releases landed on September 23, 2026 and October 12, 2026 respectively.
| Parameter | T | Netzero for Powerwall |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.8 (775 ratings) — better |
| Positive reviews | 23.5% of reviews | 90.4% of reviews — better |
| Number of ratings | — | 775 — better |
| Update frequency | Every 6 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 13.0 — better | 16.4 |
| Further details — not scored | ||
| Size | 8 MB | 60 MB |
| Age rating | 4+ | 4+ |
| Developer | EuroICC d.o.o. | Netzero Labs, Inc |
Customer experience
T
Netzero for Powerwall
Bugs and requests
T
Not enough reviews yet to summarise bugs or requests.
Netzero for Powerwall
Reported bugs
2 issues- May not be compatible with PW3
- Diagnostic screen stays black
Requested features
2 requests- stop battery charging?
- AND function on the conditionality
In-app purchases
T
No in-app purchases
Netzero for Powerwall
- Netzero Pro - Monthly$6.991 Month
- Netzero Pro - Annual$69.991 Year
Questions
Is T free?
Is Netzero for Powerwall free?
Do T or Netzero for Powerwall have ads?
Which is updated more often, T or Netzero for Powerwall?
Other comparisons
