# 123SmartBMS vs Datum Tools

The clearest difference is in-app purchases: 123SmartBMS at none against Datum Tools's 2. Datum Tools's advantage is update cadence (weekly vs monthly). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Datum Tools sells 2 in-app purchases, starting at $2.99 per month. 123SmartBMS asks for nothing beyond the download.

123SmartBMS ships an update monthly, Datum Tools weekly. The most recent releases landed on September 20, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | 123SmartBMS | Datum Tools |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (21 ratings)](https://appshunter.io/ios/app/123smartbms/id988285264/reviews)** | — |
| Number of ratings | **21** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | Free | — |
| Size | 190 MB | 30 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Albertronic B.V.](https://appshunter.io/developer/890882604) | [JOSHUA ERICH PABST](https://appshunter.io/developer/1895651372) |

## What reviewers say

### 123SmartBMS

[App page](https://appshunter.io/ios/app/123smartbms/id988285264)

This app monitors and manages lithium battery packs, ensuring optimal condition and extended lifespan. It tracks cell voltages, temperatures, and currents, while balancing cells during charging. Connect via Bluetooth to view real-time battery status and control charging/discharging.

**Highlights:** Monitors cell voltages and temperatures, Tracks in- and outgoing currents, Balances cells during charging, Bluetooth connectivity for real-time data, Controls charge/discharge signals, Extends battery pack lifespan

**Features:** macOS Compatibility

**In-app purchases:** none


### Datum Tools

[App page](https://appshunter.io/ios/app/datum-tools/id6797541958)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Unlock | $2.99 | per month |
| Datum Pro Unlock | $19.99 | one-time |


## Frequently asked questions

### Is 123SmartBMS free?

123SmartBMS is free to download, with no in-app purchases.

### Is Datum Tools free?

Datum Tools is free to download, with in-app purchases available.

### Do 123SmartBMS or Datum Tools have ads?

Neither 123SmartBMS nor Datum Tools shows ads.

### Which is updated more often, 123SmartBMS or Datum Tools?

123SmartBMS ships an update monthly, and Datum Tools weekly. Most recently, 123SmartBMS was updated on September 20, 2026 and Datum Tools on September 30, 2026.

---

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