SMART BMS vs Solar Guardian
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SMART BMS
Connect to and manage your lithium battery via Bluetooth. Monitor battery status, query information, and set safety parameters. Receive alerts for battery faults and track their occurrences.
- Bluetooth battery connection
- Battery status query
- Fault alarm monitoring
- Safety parameter settings
- Password protection for settings
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1. The uniqueness of the Bluetooth name ensures that users can accurately connect and manage the corresponding lithium battery; 2. Information query management can be performed on the battery, the user can query the relevant status of each string of batteries, and replace or maintain the abnormal battery; 3. Safety setting and reading battery protection parameters, user setting parameters, you need to enter a password to modify the parameters; 4. Monitor battery fault alarms and display the current faults,and the number of faults in the battery;
Solar Guardian
Monitor and control various solar energy systems, including inverters, chargers, and storage solutions. Adjust parameters and view data for optimal energy management.
- Data display for solar systems
- Parameter setting for inverters
- Supports grid-tie inverters
- Hybrid inverter management
- Energy storage system monitoring
- Home and mobile energy storage control
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Solar Guardian is a new application with the core function of data display and parameter setting for inverters, solar chargers, grid-tie inverters, hybrid inverters, energy storage systems, N+1 hybrid systems, home energy storage and mobile energy storage.
Screenshots
Verdict
The clearest difference is rating: Solar Guardian at 2.4 against SMART BMS's 2.2. SMART BMS's advantage is ratings volume (78 vs 16) and iOS requirement (11.0 vs 13.0). On price, review sentiment, update cadence and ads 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.
Solar Guardian holds the better App Store score, 2.4 against 2.2. Both are backed by a comparable volume of ratings — 78 and 16 respectively. Written reviews split almost evenly too, at 17% and 17% positive.
SMART BMS ships an update every 6 weeks, Solar Guardian every 2 months. The most recent releases landed on October 22, 2026 and October 16, 2026 respectively.
| Parameter | SMART BMS | Solar Guardian |
|---|---|---|
| Price | Free | Free |
| Rating | 2.2 (78 ratings) | 2.4 (16 ratings) — better |
| Positive reviews | 17.3% of reviews — better | 16.7% of reviews |
| Number of ratings | 78 — better | 16 |
| Update frequency | Every 6 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 11.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 65 MB | 84 MB |
| Age rating | 4+ | 4+ |
| Developer | 所兵 邱 | BEIJING EPSOLAR TECHNOLOGY CO., LTD. |
Customer experience
SMART BMS
Solar Guardian
Bugs and requests
SMART BMS
Reported bugs
5 issues- Bluetooth connectivity problems
- Incorrect series/parallel configuration display
- Firmware update issues
- Inconsistent data readings
- Inability to change settings
Requested features
5 requests- Dark mode option
- Logging and historical data
- Better parameter customization
- Improved battery monitoring metrics
- Apple Watch support
Solar Guardian
Not enough reviews yet to summarise bugs or requests.
In-app purchases
SMART BMS
No in-app purchases
Solar Guardian
No in-app purchases
