# Sensor Toolkit vs Altitude

The clearest difference is in-app purchases: Altitude at none against Sensor Toolkit's 4. Altitude also leads on ads (none vs shown) and update cadence (every 3 days vs every 3 weeks). Sensor Toolkit's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 17.0). On price there is nothing between them.

Both are free to download. Sensor Toolkit sells 4 one-off in-app purchases. Altitude asks for nothing beyond the download.

Sensor Toolkit ships an update every 3 weeks, Altitude every 3 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Sensor Toolkit | Altitude |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Size | 54 MB | 8 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 12+ | 4+ |
| Developer | [Dylan Calin](https://appshunter.io/developer/1832226530) | [康 陆](https://appshunter.io/developer/1889797709) |

## What reviewers say

### Sensor Toolkit

[App page](https://appshunter.io/ios/app/sensor-toolkit-smart-tools/id6758297155)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Coffee Tip | $1.00 | one-time |
| SensorKit Pro | $1.99 | one-time |
| Pizza Tip | $2.00 | one-time |
| Diamond Tip | $5.00 | one-time |


### Altitude

[App page](https://appshunter.io/ios/app/altitude-now/id6770940856)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sensor Toolkit free?

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

### Is Altitude free?

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

### Do Sensor Toolkit or Altitude have ads?

Sensor Toolkit shows ads; Altitude does not.

### Which is updated more often, Sensor Toolkit or Altitude?

Sensor Toolkit ships an update every 3 weeks, and Altitude every 3 days. Most recently, Sensor Toolkit was updated on November 5, 2026 and Altitude on October 31, 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.*