# INVICTA Lithium vs Projecta BM500

The clearest difference is review sentiment: INVICTA Lithium at 100% against Projecta BM500's 0%. INVICTA Lithium also leads on update cadence (every 3 months vs every 7 months) and iOS requirement (10.0 vs 13.0). 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.

INVICTA Lithium ships an update every 3 months, Projecta BM500 every 7 months. The most recent releases landed on October 8, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | INVICTA Lithium | Projecta BM500 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **100.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 7 months |
| Monetization | Free | Free |
| Size | 14 MB | 24 MB |
| Requires iOS | **10.0** | 13.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SPB SealedPerformanceBatteries](https://appshunter.io/developer/1196313654) | [TBB Power Co., Ltd](https://appshunter.io/developer/1089239531) |

## What reviewers say

### INVICTA Lithium

[App page](https://appshunter.io/ios/app/invicta-lithium/id1196313655)

Monitor your lithium battery's details via Bluetooth connection. Check real-time battery status to understand its condition and receive timely reminders. This utility tool provides essential battery insights for your device.

**Highlights:** Monitor battery details, Bluetooth connection, Check battery status, Receive reminders, Utility tool

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

**In-app purchases:** none


### Projecta BM500

[App page](https://appshunter.io/ios/app/projecta-bm500-bt/id1619339633)

This kit allows users to monitor their battery systems, displaying key information like current, voltage, state of charge, and remaining time. It is compatible with various battery types and voltages, offering accurate measurements for a comprehensive understanding of battery health.

**Highlights:** Real-time current monitoring up to 500A, Supports 12V, 24V, or 48V DC battery systems, Compatible with AGM, GEL, and LFP batteries, Displays voltage, SOC, and time remaining, Accurate current (+/- 0.4%) and voltage (+/- 0.3%) measurements

**In-app purchases:** none


## Frequently asked questions

### Is INVICTA Lithium free?

INVICTA Lithium is free to download, with no in-app purchases.

### Is Projecta BM500 free?

Projecta BM500 is free to download, with no in-app purchases.

### Do INVICTA Lithium or Projecta BM500 have ads?

Neither INVICTA Lithium nor Projecta BM500 shows ads.

### Which is updated more often, INVICTA Lithium or Projecta BM500?

INVICTA Lithium ships an update every 3 months, and Projecta BM500 every 7 months. Most recently, INVICTA Lithium was updated on October 8, 2026 and Projecta BM500 on October 11, 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.*