# TOPDON BatteryLab vs CROO Timer

The clearest difference is in-app purchases: TOPDON BatteryLab at none against CROO Timer's 2. TOPDON BatteryLab also leads on iOS requirement (11.0 vs 15.1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. CROO Timer sells 2 in-app purchases, starting at $1.99 per month. TOPDON BatteryLab asks for nothing beyond the download.

TOPDON BatteryLab ships an update monthly, CROO Timer every 2 weeks. The most recent releases landed on October 8, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | TOPDON BatteryLab | CROO Timer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (13 ratings)](https://appshunter.io/ios/app/topdon-batterylab/id6462673217/reviews)** | — |
| Number of ratings | **13** | — |
| Positive reviews | 24.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 188 MB | 57 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [HK TOPDON TECHNOLOGY Co., LIMITED](https://appshunter.io/developer/1846276192) | [Venisi Taufa](https://appshunter.io/developer/1895865609) |

## What reviewers say

### TOPDON BatteryLab

[App page](https://appshunter.io/ios/app/topdon-batterylab/id6462673217)

This app allows you to test your car's battery and generator. It provides detailed battery life and voltage calculations, and can manage multiple devices simultaneously. Generate and view test reports with ease.

**Highlights:** Calculate battery life and voltage, Inspect car generator, Manage multiple devices, Quick device connection, One-click test report generation

**Features:** Vision Pro support

**In-app purchases:** none


### CROO Timer

[App page](https://appshunter.io/ios/app/croo-timer/id6786806570)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| CROO Timer Plus Monthly | $1.99 | per month |
| CROO Timer Plus Yearly | $19.99 | per year |


## Frequently asked questions

### Is TOPDON BatteryLab free?

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

### Is CROO Timer free?

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

### Do TOPDON BatteryLab or CROO Timer have ads?

Neither TOPDON BatteryLab nor CROO Timer shows ads.

### Which is updated more often, TOPDON BatteryLab or CROO Timer?

TOPDON BatteryLab ships an update monthly, and CROO Timer every 2 weeks. Most recently, TOPDON BatteryLab was updated on October 8, 2026 and CROO Timer on October 12, 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.*