Softonic did the math this month and put the panel count needed to replace Grand Coulee Dam’s output at roughly 23 million. Home solar in the United States is climbing toward that scale, and every rooftop in that count is a system that can drift, degrade, or fall offline quietly. The best solar panel monitoring apps for Android tell you when a string underperforms, when a module drops out, and when a battery holds less than it should, before the utility bill does.
We looked at the eight apps most Android homeowners actually run in 2026, checked pricing and inverter support this month, and grouped them by brand and use case. Every app on the list ships today, every price reflects the current tier, and every download link points to the current listing.
What to look for in a solar monitoring app
Not every app that plots a yield curve is worth installing. A few criteria separate the useful ones from the demos.
- Inverter compatibility, because most manufacturers lock their gateway to their own app
- Real-time production and consumption views, ideally at panel level with optimizers or microinverters
- Battery state of charge, cycle count, and reserve controls if you have storage
- Alerts and push notifications when a string or module misbehaves
- Data export or API access so you can feed a third-party tool like Home Assistant or PV Output
- Local or offline access when the router goes down, which matters more in outage-prone regions
Pick the app that covers your inverter first, then look for the second one that fills the gaps.
Quick comparison
| App | Best for | Platforms | Free plan | Starting price | Rating |
|---|---|---|---|---|---|
| mySolarEdge | SolarEdge inverter owners | Android, iOS, Web | Full monitoring | Free | 4.4 |
| Enphase App | Enphase microinverter systems | Android, iOS, Web | Panel-level data | Free | 4.5 |
| Fronius Solar.web | Fronius PV systems | Android, iOS, Web | Live and history | Free | 4.4 |
| SMA Energy | SMA Sunny Boy / Tripower | Android, iOS, Web | Full dashboard | Free | 4.3 |
| SunStrong Connect | SunPower and SunVault owners | Android, iOS, Web | Full monitoring | Free | 4.6 |
| PV Output | Cross-brand community tracking | Android, Web | Full app | Free | 4.2 |
| Solar Assistant | Local monitoring across brands | Android (browser), iOS, Web | 30-day trial | $55 one-time | 4.6 |
| Tesla | Powerwall and Tesla Solar | Android, iOS | Full monitoring | Free | 4.6 |
1. mySolarEdge (SolarEdge Monitoring), best for SolarEdge inverter owners
mySolarEdge pairs with any SolarEdge inverter and gives homeowners a live view of production, self-consumption, and battery state, plus per-module data when power optimizers are installed. The dashboard surfaces underperforming modules against the PV layout, adds EV charging and battery reserve controls, and pushes alerts when a string drops out. Weather overlays help explain low yields on cloudy days without a call to the installer.
Where it falls short: The panel-level view only works on systems with SolarEdge power optimizers, so string-only setups miss the per-module diagnostic. Older accounts still see the legacy Monitoring dashboard on the web and have to sign in a second time to reach it.
Pricing:
- Free: Full homeowner monitoring, alerts, battery and EV control
- Paid: No paid tier for homeowners
Platforms: Android, iOS, Web
Download: Google Play
Bottom line: The default pick for any home with a SolarEdge inverter installed after 2020, especially with optimizers or a battery in the mix.
2. Enphase App, best for Enphase microinverter systems
The Enphase App (still branded Enlighten by many installers) reads every IQ Microinverter individually, so a single failing panel shows up in seconds instead of hiding behind string totals. Battery profiles, Storm Guard, and EV charger scheduling all live in the same dashboard, and the app has passed 1.8 million downloads across iOS and Android. Data refreshes every 15 minutes on the free tier, which suits most homeowners.
Where it falls short: The system needs an IQ Gateway (formerly Envoy) to phone data home, and owners who want granular 15-minute AC and DC graphing have to pay for Enlighten Manager on top of the free app. Enphase-only hardware means a mixed rooftop never sees the second brand.
Pricing:
- Free: Panel-level production, alerts, battery, and EV controls
- Paid: Enlighten Manager at $9.99/mo or $249 lifetime for high-resolution graphing and array builder
Platforms: Android, iOS, Web
Download: Google Play
Bottom line: The right app if your roof runs on IQ microinverters. Owners who want deeper analytics should budget for the Manager upgrade.
3. Fronius Solar.web, best for Fronius PV systems
Fronius Solar.web reads live and historical output from any Fronius inverter linked to a Fronius Datamanager, and the 4.1 release from August 2026 refreshed the live-data card and consumption tiles. Battery control, expected generation, and an Energy Cost Assistant sit in the same view. Home-screen widgets are unusually good, so a glance at the launcher tells you if solar is covering the house right now.
Where it falls short: Weather overlays and advanced battery scheduling require the Solar.web Premium subscription that Fronius meters per plant. Older Fronius kit without a Datamanager cannot use the app at all.
Pricing:
- Free: Live and history dashboards, basic battery view, home-screen widgets
- Paid: Solar.web Premium adds forecast weather, extended archive, and detailed battery controls (per-plant annual fee)
Platforms: Android (8.0+), iOS, Web
Download: Aptoide · Google Play
Bottom line: Pay for Premium only if you actually use the forecast, because the free view covers most daily needs.
4. SMA Energy, best for SMA Sunny Boy and Tripower owners
SMA Energy replaced the retired Sunny Portal App and now holds every homeowner-facing feature under one roof, from yield and grid feed-in to EV charger and load management. The dashboard splits by generation, consumption, and battery state, and a PV forecast tab helps time appliance loads for high-solar windows. Tablet layouts on Android give installers a proper cockpit view without switching to a laptop.
Where it falls short: The transition from Sunny Portal left a few power users complaining about the missing plant logbook. Setup requires a compatible SMA gateway or a Sunny Home Manager, which some older installs never had.
Pricing:
- Free: Full monitoring, forecast, EV and battery controls
- Paid: No paid tier for the app itself
Platforms: Android, iOS, Web
Download: Google Play
Bottom line: The correct app for anyone running an SMA inverter. Check that your gateway is on the supported list before you invest a weekend on setup.
5. SunStrong Connect (formerly mySunPower), best for SunPower and SunVault owners
Renamed from mySunPower after SunPower’s 2024 restructuring, SunStrong Connect keeps the same panel-level view, SunVault battery controls, and daily, monthly, and yearly reporting. The September 2026 release brought back live weather overlays and cleaner outage alerts. Homeowners still stuck on the older SunPower Customer Portal are being nudged to migrate.
Where it falls short: The rebrand caused login confusion for existing customers, and older PVS5 gateways occasionally need reprovisioning by support. Third-party integrations such as Enlighten Manager or PV Output are still not supported.
Pricing:
- Free: Full monitoring, battery, and weather features
- Paid: No paid tier
Platforms: Android, iOS, Web
Download: Google Play
Bottom line: The only official option for SunPower systems, and the September update makes it worth reinstalling if you gave up on the older app.
6. PV Output, best for cross-brand community tracking
PV Output connects to the pvoutput.org data service and pulls yield from almost any inverter that supports manual uploads or a partner API. The strength is the community, because you can benchmark your system against neighbours running similar orientations and panel counts. The Android app supports customizable dashboards and animated grid-flow tiles for a wall-mounted display.
Where it falls short: Automation depends on a bridge like Solar Assistant, ha-pvoutput, or a per-brand connector, so setup is not one-click. The interface is functional but never won a design award.
Pricing:
- Free: Full app functionality
- Paid: pvoutput.org Donation account at AU$15/year unlocks higher upload rates and extended history
Platforms: Android, Web
Download: Aptoide · Google Play
Bottom line: The right pick for tinkerers who run mixed hardware or want to compare their yield against real houses in the same postcode.
7. Solar Assistant, best for local, brand-agnostic monitoring
Solar Assistant runs on a Raspberry Pi wired to almost any hybrid inverter (Deye, Sol-Ark, Growatt, MPP Solar, Victron, EG4) and serves a dashboard you open in the Android browser. Everything stays on the LAN, so outages, VPNs, and cloud policies do not matter. MQTT and Home Assistant integration are first-class.
Where it falls short: No Play Store app, so you save the dashboard as a browser shortcut or wrap it inside Home Assistant. The software model moved to annual renewals in 2024, which some owners resent even at the modest fee.
Pricing:
- Free: 30-day trial
- Paid: $55 one-time perpetual licence plus $29/year for software updates and support
Platforms: Android (via browser), iOS, Web, Raspberry Pi
Download: Solar Assistant
Bottom line: The best answer for anyone with a hybrid inverter who wants local control and does not trust cloud-only monitoring.
8. Tesla App, best for Powerwall and Tesla Solar homes
The Tesla App has covered Powerwall since day one and, with the 2025 offline-monitoring update, keeps working when your internet drops. Energy flows between solar, home loads, Powerwall, and the grid animate in real time, and historical data goes back to installation. The May 2025 release added support for negative-price electricity in European markets.
Where it falls short: It only reads Tesla equipment, so a hybrid setup with a non-Tesla inverter is invisible. The app also pushes vehicle features that energy-only owners have to scroll past.
Pricing:
- Free: Full solar and Powerwall monitoring
- Paid: No paid tier for energy features
Platforms: Android, iOS
Download: Google Play
Bottom line: The right app if Tesla makes your inverter, battery, or roof. Otherwise it is a passenger.
How to pick the right one
Start with the inverter brand, because most manufacturers lock their gateway to their own app.
- If you have a SolarEdge inverter: mySolarEdge, and add optimizers for panel-level data
- If you have Enphase microinverters: the Enphase App, plus Enlighten Manager if you want deep graphs
- If you have a Fronius inverter: Solar.web, with Premium optional
- If you have SMA equipment: SMA Energy
- If you have SunPower or SunVault: SunStrong Connect
- If you have Tesla Powerwall or Solar: the Tesla App
- If you want to benchmark against neighbours: PV Output
- If you run a hybrid inverter and want everything on your LAN: Solar Assistant on a Raspberry Pi
Households running more than one brand (common after a battery retrofit) usually end up with two apps or bridge both feeds into Solar Assistant or Home Assistant. Owners in outage-prone areas should insist on local access, because the Tesla and Solar Assistant options both keep working when the router does not.
FAQ
What is the best free solar panel monitoring app for Android?
The free tier of the app that matches your inverter is usually the best pick, because it reads the data with no bridge required. mySolarEdge, the Enphase App, Fronius Solar.web, SMA Energy, SunStrong Connect, and the Tesla App all monitor at no cost. Cross-brand tinkerers get more value from PV Output.
Can I monitor solar panel output without an internet connection?
Yes, if the app supports local access. The Tesla App added offline Powerwall monitoring in 2025, and Solar Assistant runs entirely on the LAN by design. Manufacturer apps like mySolarEdge and Enphase depend on cloud sync, so they show stale data when the router goes down.
Which app supports multiple solar inverter brands?
Solar Assistant and PV Output are the two serious options. Solar Assistant polls the inverter directly over USB, serial, or Modbus and works with Deye, Sol-Ark, Growatt, Victron, MPP Solar, and others. PV Output ingests data through community uploaders and covers almost anything if you set up the bridge.
Do I need a subscription to see panel-level solar data?
Not usually. Enphase’s free app already shows per-microinverter production, and mySolarEdge does the same for systems with SolarEdge optimizers. Enlighten Manager and Solar.web Premium add deeper analytics on top of what the free apps expose, so you only need them if you plan to dig into 15-minute curves.
How accurate are Android solar monitoring apps compared to utility bills?
Manufacturer apps read directly from the inverter, so production numbers usually match the net-meter within one to two percent over a month. Consumption reads depend on the installed CTs or smart meter, so bigger errors show up when the wiring is off by a phase. Compare the app total to the utility bill for the first two months and adjust CT direction if the numbers drift.
What happens to my solar data if the app or company shuts down?
Cloud-only apps risk losing your history if the vendor pulls the plug, which happened when the original SunPower business restructured in 2024. Export data monthly if the app allows it, or run PV Output or Solar Assistant alongside so you keep a local copy. Home Assistant will log everything to a database you own.
