# Sensors vs Smart Tools Pro HD

The clearest difference is rating: Sensors at 2.0 against Smart Tools Pro HD's 1.0. Sensors also leads on review sentiment (33% vs 0%) and device support (3 vs 1). Smart Tools Pro HD's advantage is update cadence (every 9 months vs every 21 months) and price ($0.99 vs $1.99). On ads, in-app purchases and monetization model there is nothing between them.

Sensors costs $1.99 and Smart Tools Pro HD $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Sensors holds the better App Store score, 2.0 against 1.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews point the same way: 33% of Sensors's written reviews are positive against 0% of Smart Tools Pro HD's.

Sensors ships an update every 21 months, Smart Tools Pro HD every 9 months. The most recent releases landed on June 5, 2026 and June 3, 2026 respectively.

## The numbers

| Metric | Sensors | Smart Tools Pro HD |
| --- | --- | --- |
| Price | $1.99 | **$0.99** |
| Rating | **[2.0 (3 ratings)](https://appshunter.io/ios/app/sensors/id481727463/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/smart-tools-pro-hd/id764668765/reviews) |
| Number of ratings | **3** | 1 |
| Positive reviews | **33.3% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 9 months** |
| Monetization | Paid | Paid |
| Size | 3 MB | 11 MB |
| Requires iOS | **12.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Piet Jonas](https://appshunter.io/developer/288060167) | [Shajir Kalady](https://appshunter.io/developer/1673992247) |

## What reviewers say

### Sensors

[App page](https://appshunter.io/ios/app/sensors/id481727463)

Access all your device's built-in sensor data in one place. View readings for acceleration, compass, pressure, location, and more. It also retrieves location names and elevation from external databases and local weather information.

**Highlights:** View all device sensor values, Supports acceleration, compass, pressure, location, Retrieves location name and elevation, Fetches local outdoor temperature and air pressure, Switch between imperial and metric units, Option to hide unavailable sensors, Supports iPad multitasking

**Features:** macOS Compatibility

**In-app purchases:** none


### Smart Tools Pro HD

[App page](https://appshunter.io/ios/app/smart-tools-pro-hd/id764668765)

This app transforms your iPad into a comprehensive toolkit with over 30 measurement and utility functions. It offers tools like rulers, protractors, speedometers, flashlights, and QR code scanners, catering to various professional and personal needs.

**Highlights:** Ruler and protractor for precise measurements, AR-based distance and height measurement, Real-time speedometer with HUD mode, Flashlight with adjustable brightness, Digital compass with GPS integration, QR code scanner and generator, Spirit level with surface and edge modes

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sensors free?

Sensors costs $1.99, with no in-app purchases.

### Is Smart Tools Pro HD free?

Smart Tools Pro HD costs $0.99, with no in-app purchases.

### Which has better reviews, Sensors or Smart Tools Pro HD?

Sensors is rated higher. Sensors averages 2.0 out of 5 from 3 ratings, while Smart Tools Pro HD averages 1.0 from 1 ratings.

### Do Sensors or Smart Tools Pro HD have ads?

Neither Sensors nor Smart Tools Pro HD shows ads.

### Which is updated more often, Sensors or Smart Tools Pro HD?

Sensors ships an update every 21 months, and Smart Tools Pro HD every 9 months. Most recently, Sensors was updated on June 5, 2026 and Smart Tools Pro HD on June 3, 2026.

---

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