# SMART BMS vs Overkill Solar

The clearest difference is review sentiment: Overkill Solar at 100% against SMART BMS's 17%. Overkill Solar also leads on rating (4.7 vs 2.1). SMART BMS's advantage is update cadence (every 6 weeks vs every 4 months) and ratings volume (76 vs 16). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Overkill Solar holds the better App Store score, 4.7 against 2.1. Both are backed by a comparable volume of ratings — 76 and 16 respectively. Written reviews point the same way: 17% of SMART BMS's written reviews are positive against 100% of Overkill Solar's.

SMART BMS ships an update every 6 weeks, Overkill Solar every 4 months. The most recent releases landed on October 7, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | SMART BMS | Overkill Solar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.1 (76 ratings)](https://appshunter.io/ios/app/smart-bms/id1519968339/reviews) | **[4.7 (16 ratings)](https://appshunter.io/ios/app/overkill-solar/id6444233824/reviews)** |
| Number of ratings | **76** | 16 |
| Positive reviews | 17.3% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 4 months |
| Monetization | Free | Free |
| Size | 65 MB | 21 MB |
| Requires iOS | **11.0** | 13.4 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [所兵 邱](https://appshunter.io/developer/1519230775) | [Overkill Solar LLC](https://appshunter.io/developer/1653276724) |

## What reviewers say

### SMART BMS

[App page](https://appshunter.io/ios/app/smart-bms/id1519968339)

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.

**Highlights:** Bluetooth battery connection, Battery status query, Fault alarm monitoring, Safety parameter settings, Password protection for settings

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Functional app
- 👍 Easy to use
- 🔋 Works with lithium batteries
- 💡 Displays cell balance information

**What reviewers complain about**

- 🐛 Connection issues
- 🐛 Crashes and freezes
- 🐛 Unreliable data
- 🐛 Compatibility problems with updates
- 🔋 Drains phone battery

**Reported bugs**

- Bluetooth connectivity problems
- Incorrect series/parallel configuration display
- Firmware update issues
- Inconsistent data readings
- Inability to change settings

**Requested features**

- Dark mode option
- Logging and historical data
- Better parameter customization
- Improved battery monitoring metrics
- Apple Watch support


### Overkill Solar

[App page](https://appshunter.io/ios/app/overkill-solar/id6444233824)

This app connects to a solar battery management system to provide detailed monitoring and control. Users can track cell voltage, capacity, current, and manage charging/discharging ports. It also offers advanced configuration options for calibration, balancing, and protection settings.

**Highlights:** Monitor cell voltage and capacity, Control charging and discharging ports, Calibrate voltage and current, Configure balancer and protection values, Log voltage, current, and power, Monitor BMS alarms and temperature

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SMART BMS free?

SMART BMS is free to download, with no in-app purchases.

### Is Overkill Solar free?

Overkill Solar is free to download, with no in-app purchases.

### Which has better reviews, SMART BMS or Overkill Solar?

Overkill Solar is rated higher. SMART BMS averages 2.1 out of 5 from 76 ratings, while Overkill Solar averages 4.7 from 16 ratings.

### Do SMART BMS or Overkill Solar have ads?

Neither SMART BMS nor Overkill Solar shows ads.

### Which is updated more often, SMART BMS or Overkill Solar?

SMART BMS ships an update every 6 weeks, and Overkill Solar every 4 months. Most recently, SMART BMS was updated on October 7, 2026 and Overkill Solar on September 28, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*