BMS Tool vs SolarPanelApp
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BMS Tool
Monitor your battery management systems via Bluetooth. Supports multiple BMS types including Liontron, XiaoXiang, ANT, and Wattstunde. Offers a screen always-on mode and macOS compatibility.
- Screen Always ON mode
- Multiple BMS support
- Liontron BMS read-only
- XiaoXiang BMS read-only
- ANT BMS read-only
- Wattstunde LiFePo4 read-only
- macOS support
Read full descriptionHide full description
BMS Tool shows the state of your battery from its battery management system (BMS) over Bluetooth, on the iPhone, the iPad, the Mac and the Apple Watch. Supported BMS: - JBD / XiaoXiang smart BMS, also in Liontron batteries - JK BMS (Jikong) - Daly smart BMS - ANT BMS, the older boards and the newer ANT-BLE boards - Seplos V2 and V3 - Redodo, LiTime, PowerQueen and Starry Sea batteries - WattCycle batteries - Wattstunde LiFePO4 and Wattstunde Nova Core batteries - Ective, LiFeBlue, KiloVault, Enerdrive, Noovi and StartCraft batteries Features: - Charge, voltage, current and power at a glance - Time until full while charging and until empty while discharging, estimated from the present current - Every cell voltage with minimum, maximum, difference and balancing - Temperature sensors, alarms and BMS information - Several batteries in one list, each with its own name - Search for new devices can be switched off: only your own batteries stay in the list - Session values and a CSV log of the readings - History with charts and statistics: charge, power, voltage, temperatures and cells over a day, a week, a month or a year, energy per day, export as CSV - Alarms as notifications while the app runs - Home and lock screen widgets - Apple Watch app with complications: charge, cells, temperatures and alarms of the battery open on the iPhone - The display can stay on while the app is open The app reads the values of the BMS and does not change its settings. Ideas and requests are welcome at web.e77code.com/bms-tool.
SolarPanelApp
This app assists in accurately aligning solar panels and monitoring their performance using your iPhone or iPad's sensors. It provides real-time feedback, location-based optimization, and insights into efficiency losses for various users.
- Real-time panel alignment visualization
- Location-based solar optimization
- Performance insights and loss comparison
- Smart visual tools and graphs
- Utilizes device sensors, no external tools needed
- Supports multiple panel configurations
Read full descriptionHide full description
SolarPanelApp: Maximize Your Solar Potential SolarPanelApp helps you align your solar panels accurately and track their performance right from your iPhone or iPad. Whether you are a DIY solar enthusiast, off-grid explorer, or professional installer, this app gives you the tools to make solar optimization easy, intelligent, and portable. Key Features Real-Time Panel Alignment Visualize tilt, azimuth, and roll using live device sensors See your panel’s current vs. recommended orientation Get alignment suggestions based on location and sun path Location-Based Optimization Automatic detection of GPS coordinates and altitude Computes optimal yearly or daily tilt for your region Ideal for fixed and manually adjusted panel setups Performance Insights Instantaneous efficiency feedback based on orientation deviation Define and save multiple panels with custom tags Compare performance losses due to misalignment or aging Smart Visual Tools View graphs showing solar declination, panel aging, and yield loss See performance index definitions with clear formulas and examples No External Tools Required Works entirely with your device’s built-in sensors No need for external inclinometer or compass Designed for: Rooftop solar users Off-grid cabin and camper setups Solar energy educators and students Field installers and technicians Anyone interested in maximizing solar efficiency Ready to get the most from your solar panels? Download SolarPanelApp and align with the sun — smarter, cleaner, better.
Screenshots
Verdict
The clearest difference is rating: SolarPanelApp at 5.0 against BMS Tool's 3.9. SolarPanelApp also leads on in-app purchases (none vs 1) and ads (none vs shown). BMS Tool's advantage is ratings volume (7 vs 1) and iOS requirement (16.0 vs 18.5). On price 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. BMS Tool sells 1 one-off in-app purchase. SolarPanelApp asks for nothing beyond the download.
SolarPanelApp holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: BMS Tool has 7 ratings behind it against 1, so its average is the more settled of the two.
| Parameter | BMS Tool | SolarPanelApp |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (7 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 71.4% of reviews | — |
| Number of ratings | 7 — better | 1 |
| Update frequency | Every 6 weeks | — |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, Apple Watch — better | iPhone, iPad |
| Requires iOS | 16.0 — better | 18.5 |
| Further details — not scored | ||
| Size | 21 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | e77code GmbH | Sujay Kadam |
In-app purchases
BMS Tool
- Remove Ads$3.99
SolarPanelApp
No in-app purchases









