# Sensor Labs vs Unit Converter & Tools

The clearest difference is ads: Unit Converter & Tools at none against Sensor Labs's shown. Unit Converter & Tools also leads on iOS requirement (13.0 vs 17.0). Sensor Labs's advantage is update cadence (every 2 days vs every 4 weeks). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Sensor Labs sells 1 one-off in-app purchase and Unit Converter & Tools sells 1 in-app purchase, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Sensor Labs ships an update every 2 days, Unit Converter & Tools every 4 weeks. The most recent releases landed on October 31, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Sensor Labs | Unit Converter & Tools |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 2 days** | Every 4 weeks |
| Size | 11 MB | 22 MB |
| Requires iOS | 17.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Gnanasuriyan Gnana Oli](https://appshunter.io/developer/1865699730) | [Atif Mumtaz](https://appshunter.io/developer/875232775) |

## What reviewers say

### Sensor Labs

[App page](https://appshunter.io/ios/app/sensor-labs-physics-sensors/id6757404916)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Sensor Labs Pro | $9.99 | one-time |


### Unit Converter & Tools

[App page](https://appshunter.io/ios/app/unit-converter-and-tools/id6759855735)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unitverse Star | $0.99 | per month |


## Frequently asked questions

### Is Sensor Labs free?

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

### Is Unit Converter & Tools free?

Unit Converter & Tools is free to download, with in-app purchases available.

### Do Sensor Labs or Unit Converter & Tools have ads?

Sensor Labs shows ads; Unit Converter & Tools does not.

### Which is updated more often, Sensor Labs or Unit Converter & Tools?

Sensor Labs ships an update every 2 days, and Unit Converter & Tools every 4 weeks. Most recently, Sensor Labs was updated on October 31, 2026 and Unit Converter & Tools on October 25, 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.*