# Voltas BMS vs Battery Drain Check

The clearest difference is in-app purchases: Voltas BMS at none against Battery Drain Check's 3. Voltas BMS also leads on iOS requirement (13.0 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Battery Drain Check sells 3 in-app purchases, starting at $1.99 per 7 days. Voltas BMS asks for nothing beyond the download.

## The numbers

| Metric | Voltas BMS | Battery Drain Check |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | — |
| Size | 35 MB | 9 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [VOLTAKER Kereskedelmi Korlatolt Felelossegu Tarsasag](https://appshunter.io/developer/1577347073) | [SUN TEAME PTE. LTD.](https://appshunter.io/developer/941073095) |

## What reviewers say

### Voltas BMS

[App page](https://appshunter.io/ios/app/voltas-bms/id1568684666)

**Features:** macOS Compatibility

**In-app purchases:** none


### Battery Drain Check

[App page](https://appshunter.io/ios/app/battery-drain-check/id6803519933)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $1.99 | per 7 days |
| Monthly Premium | $5.99 | per month |
| Annual Premium | $29.99 | per year |


## Frequently asked questions

### Is Voltas BMS free?

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

### Is Battery Drain Check free?

Battery Drain Check is free to download, with in-app purchases available.

### Do Voltas BMS or Battery Drain Check have ads?

Neither Voltas BMS nor Battery Drain Check 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.*