# OPGMobility IOT vs BMS Pal

The clearest difference is in-app purchases: OPGMobility IOT at none against BMS Pal's 2. OPGMobility IOT also leads on iOS requirement (15.6 vs 26.2). BMS Pal's advantage is update cadence (every 5 days vs every 5 weeks). On price, ads and device support there is nothing between them.

Both are free to download. BMS Pal sells 2 one-off in-app purchases. OPGMobility IOT asks for nothing beyond the download.

OPGMobility IOT ships an update every 5 weeks, BMS Pal every 5 days. The most recent releases landed on November 9, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | OPGMobility IOT | BMS Pal |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/bms-pal/id6806738803/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 5 days** |
| Monetization | — | Free with in-app purchases |
| Size | 51 MB | 25 MB |
| Requires iOS | **15.6** | 26.2 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [EFFICIENT IT AND ELECTRONICS SERVICES PRIVATE LIMITED](https://appshunter.io/developer/1725458091) | [Inquiring Minds, Inc](https://appshunter.io/developer/6806738805) |

## What reviewers say

### OPGMobility IOT

[App page](https://appshunter.io/ios/app/opgmobility-iot/id6757752921)

**Features:** macOS Compatibility

**In-app purchases:** none


### BMS Pal

[App page](https://appshunter.io/ios/app/bms-pal/id6806738803)

Consolidate data from various battery management systems into a single, live list. Monitor state of charge, voltage, current, and more with detailed per-cell views and historical charts. Offers advanced features like capacity testing and AI-powered sanity checks for your battery packs.

**Highlights:** Live telemetry from multiple BMS, Per-cell voltage and balancing indicators, Protection alerts in plain language, Group packs for combined readings, Capacity test and history logging, Chemistry detection and override, AI-powered sanity checks

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 25 Additional Sanity Checks | $2.00 | one-time |
| BMS Pal Unlock (Lifetime) | $5.00 | one-time |


## Frequently asked questions

### Is OPGMobility IOT free?

OPGMobility IOT is free to download, with no in-app purchases.

### Is BMS Pal free?

BMS Pal is free to download, with in-app purchases available.

### Do OPGMobility IOT or BMS Pal have ads?

Neither OPGMobility IOT nor BMS Pal shows ads.

### Which is updated more often, OPGMobility IOT or BMS Pal?

OPGMobility IOT ships an update every 5 weeks, and BMS Pal every 5 days. Most recently, OPGMobility IOT was updated on November 9, 2026 and BMS Pal on November 6, 2026.

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