# BMS Tool vs KeyCard Lite

The clearest difference is rating: KeyCard Lite at 5.0 against BMS Tool's 3.9. KeyCard Lite also leads on ads (none vs shown) and update cadence (every 3 days vs every 2 months). On price, ratings volume, in-app purchases and monetization model there is nothing between them.

Both are free to download. BMS Tool sells 1 one-off in-app purchase and KeyCard Lite sells 1 in-app purchase, starting at $0.99 per year. Whichever you choose, the download price is not the number that matters.

KeyCard Lite holds the better App Store score, 5.0 against 3.9. Both are backed by a comparable volume of ratings — 7 and 4 respectively. Written reviews point the same way: 71% of BMS Tool's written reviews are positive against 100% of KeyCard Lite's.

BMS Tool ships an update every 2 months, KeyCard Lite every 3 days. The most recent releases landed on October 3, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | BMS Tool | KeyCard Lite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (7 ratings)](https://appshunter.io/ios/app/bms-tool/id1511343379/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/keycard-lite/id6779352554/reviews)** |
| Number of ratings | **7** | 4 |
| Positive reviews | 71.4% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 3 days** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 9 MB | 29 MB |
| Requires iOS | **15.2** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [e77code GmbH](https://appshunter.io/developer/1375405425) | [Marlon Milanes Rivero](https://appshunter.io/developer/1691214624) |

## What reviewers say

### BMS Tool

[App page](https://appshunter.io/ios/app/bms-tool/id1511343379)

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.

**Highlights:** 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

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


### KeyCard Lite

[App page](https://appshunter.io/ios/app/keycard-lite/id6779352554)

Securely store and organize your important cards and personal financial information. Access details quickly with a clean, lightweight interface. Protect your data with biometric authentication and iCloud sync.

**Highlights:** Save and organize cards, Manage personal finance info, Quick access to details, Face ID/Touch ID protection, Secure iCloud sync, Lightweight interface

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KeyCard Lite Annual | $0.99 | per year |


## Frequently asked questions

### Is BMS Tool free?

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

### Is KeyCard Lite free?

KeyCard Lite is free to download, with in-app purchases available.

### Which has better reviews, BMS Tool or KeyCard Lite?

KeyCard Lite is rated higher. BMS Tool averages 3.9 out of 5 from 7 ratings, while KeyCard Lite averages 5.0 from 4 ratings.

### Do BMS Tool or KeyCard Lite have ads?

BMS Tool shows ads; KeyCard Lite does not.

### Which is updated more often, BMS Tool or KeyCard Lite?

BMS Tool ships an update every 2 months, and KeyCard Lite every 3 days. Most recently, BMS Tool was updated on October 3, 2026 and KeyCard Lite on October 12, 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.*