# Projecta BM500 vs Celso

The clearest difference is iOS requirement: Projecta BM500 at 13.0 against Celso's 15.1. On price, ads, in-app purchases and device support there is nothing between them.

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

## The numbers

| Metric | Projecta BM500 | Celso |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | — |
| Monetization | Free | — |
| Size | 24 MB | 23 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [TBB Power Co., Ltd](https://appshunter.io/developer/1089239531) | [Sora Khan](https://appshunter.io/developer/1648997969) |

## What reviewers say

### 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


### Celso

[App page](https://appshunter.io/ios/app/celso/id6745879583)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Projecta BM500 free?

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

### Is Celso free?

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

### Do Projecta BM500 or Celso have ads?

Neither Projecta BM500 nor Celso shows ads.

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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.*