# iDOCTOR vs Next Level Systems Battery

The clearest difference is in-app purchases: Next Level Systems Battery at none against iDOCTOR's 1. Next Level Systems Battery also leads on update cadence (every 3 months vs every 7 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. iDOCTOR sells 1 one-off in-app purchase. Next Level Systems Battery asks for nothing beyond the download.

iDOCTOR ships an update every 7 months, Next Level Systems Battery every 3 months. The most recent releases landed on September 20, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | iDOCTOR | Next Level Systems Battery |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (17 ratings)](https://appshunter.io/ios/app/idoctor-hardware-test/id6746433118/reviews)** | — |
| Number of ratings | **17** | — |
| Positive reviews | 88.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 3 months** |
| Monetization | Free | — |
| Size | 20 MB | 24 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Rodrigo Belloso](https://appshunter.io/developer/1361382340) | [Next Level Systems GmbH](https://appshunter.io/developer/1804878050) |

## What reviewers say

### iDOCTOR

[App page](https://appshunter.io/ios/app/idoctor-hardware-test/id6746433118)

Get a comprehensive overview of your iPhone or iPad's hardware and system specifications. This app provides detailed information on CPU, memory, storage, display, battery, and security features without requiring logins or unnecessary permissions.

**Highlights:** System overview, CPU and performance details, Memory and storage information, Screen and display specs, Battery and power status, Security and accessibility features

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iDoctor Pro | $4.99 | one-time |


### Next Level Systems Battery

[App page](https://appshunter.io/ios/app/next-level-systems-battery/id6759964491)

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

**In-app purchases:** none


## Frequently asked questions

### Is iDOCTOR free?

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

### Is Next Level Systems Battery free?

Next Level Systems Battery is free to download, with no in-app purchases.

### Do iDOCTOR or Next Level Systems Battery have ads?

Neither iDOCTOR nor Next Level Systems Battery shows ads.

### Which is updated more often, iDOCTOR or Next Level Systems Battery?

iDOCTOR ships an update every 7 months, and Next Level Systems Battery every 3 months. Most recently, iDOCTOR was updated on September 20, 2026 and Next Level Systems Battery on September 19, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*