# bletoothBattery vs Useless Contacts

The clearest difference is update cadence: Useless Contacts at every 3 weeks against bletoothBattery's every 3 months. bletoothBattery's advantage is iOS requirement (12.1 vs 16.6). 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.

bletoothBattery ships an update every 3 months, Useless Contacts every 3 weeks. The most recent releases landed on October 8, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | bletoothBattery | Useless Contacts |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 60 MB | 8 MB |
| Requires iOS | **12.1** | 16.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 17+ |
| Developer | [鑫 孙](https://appshunter.io/developer/1686284211) | [Aleksandr Kuznetsov](https://appshunter.io/developer/1742177987) |

## What reviewers say

### bletoothBattery

[App page](https://appshunter.io/ios/app/bletoothbattery/id6450212362)

**Features:** macOS Compatibility

**In-app purchases:** none


### Useless Contacts

[App page](https://appshunter.io/ios/app/useless-contacts/id6737058251)

This utility app helps you declutter your address book by identifying and removing contacts that are empty, incomplete, outdated, or lack essential personal information. It offers smart analysis and custom criteria for a personalized cleanup experience, all while prioritizing your privacy with on-device processing.

**Highlights:** Smart contact analysis, Custom cleanup criteria, Batch delete support, Easy-to-use interface, Privacy-focused on-device processing

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is bletoothBattery free?

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

### Is Useless Contacts free?

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

### Do bletoothBattery or Useless Contacts have ads?

Neither bletoothBattery nor Useless Contacts shows ads.

### Which is updated more often, bletoothBattery or Useless Contacts?

bletoothBattery ships an update every 3 months, and Useless Contacts every 3 weeks. Most recently, bletoothBattery was updated on October 8, 2026 and Useless Contacts on October 1, 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.*