# Toolbox - Smart Meter Tools — Best Measuring Tool Box App

> Multi-functional measuring tool kit for iPhone and iPad. (iPhone/iPad app by SkyPaw Co., Limited.)

- Source: https://appshunter.io/ios/app/toolbox-smart-meter-tools/id933528345 (this page in markdown: same URL + `.md`)
- Developer: [SkyPaw Co., Limited](https://appshunter.io/developer/1842040687)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Rating: 4.50/5 from 13,830 App Store ratings · 856 written reviews indexed
- Age rating: 4+
- Requires: iOS 8.0 · 32 MB
- Languages: Vietnamese, American English, Dutch, European Spanish, Italian, Korean, German (Germany), European Portuguese, Chinese (Traditional, Taiwan), Chinese (Simplified, China) and 2 more
- Released: 2014-11-13
- Data updated: 2026-08-25
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/toolbox-smart-meter-tools/id933528345/reviews.md

## What is Toolbox?

The most handy measuring tool kit in the world. Turning your iPhone or iPad into a multi functional measuring device with: metronome, stopwatch, timer, seismometer, ruler, surface level and many more.

Currently, there are 13 measuring tools + Flashlight in the tool box:

- BAROMETER
It gives you a nice and clear local atmospheric pressure, obtained from the barometric sensor in your device

- ALTIMETER
This tool takes advantage of the built in GPS to give you the precise elevation above the sea level.

- COMPASS
A pretty and well-made compass for navigation, traveling and direction reference purposes.

- TESLAMETER
It takes advantage of the built-in magnetometer in your iPhone/iPod touch, allows you to monitor the strength of magnetic field all around. There are a range of real-life applications for this useful item, such as: metal detector, AC magnetic fields, or finding low-magnetic places for sleeping

- METRONOME
It is the most precise and stable metronome on the app store. Whether you are a musician, a music teacher, a beginner at playing music or even a golfer, this tool provides you a set of powerful features that can satisfy all your needs. 

- STOPWATCH
Whenever you need a precise and professional stopwatch for sport activities like: sprints, jogging, this tool is a must have. Among its features are: intuitive interface, lap and split modes support, or send log results to your email

- TIMER
There are unlimited applications of using timer in daily life, such as: egg timer, tea timer, cooking, alarm clock, etc. The timer tool satisfies all of those needs by many of its features: up to 5 timers running simultaneously, count down and count up support, intuitive and convenient duration setup using preset and gestures

- SEISMOMETER
Taking advantage of the built-in accelerometer in your iPhone, this tool detects and visualizes any vibrations and moves of the iPhone. So, why not using this excellent feature to help your iPhone self-protected like a car when combined with an alarm? Or another great application is to test how smooth the car is on a test drive

- PLUMB BOB
This is an instrument to check if an object is perfectly vertical/plumb and has been used since the time of the ancient Egyptians. It suits any types of your needs, such as: hanging objects, carpenter work, brick layer or building construction

- SURFACE LEVEL
This tool facilitates the measurement of the slope of whatever surface you want to check. Most importantly, its accuracy is ensured at the maximum level by the support to different sensitivities that allow you to detect subtle slopes (floor leveling, furniture arrangement,..)

- SPIRIT/BUBBLE LEVEL
It is a simple but extremely useful tool in the set to check if an object is balanced. Its applications range from entertained purposes such as checking pool billiard tables in the bar to serious usages like constructions, carpenter, etc

- RULER
The ruler helps you precisely know the lengths of objects all around you, such as pens, tables, pictures. We built it to become even more than just a normal ruler: longest distance measuring capability, and up to 6 units support

- PROTRACTOR
Have you ever forgotten your protractor at school or when you urgently look for a protractor to measure any kind of angles in real life?

## Key features

- Metronome
- Stopwatch
- Timer
- Ruler
- Surface Level
- Barometer
- Altimeter
- Compass

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| PRO Upgrade | $2.99 | one-time |


## What do users think of Toolbox?

Overall sentiment: positive

**Pros**

- 🚀 Useful tools
- 👍 Accurate measurements
- 🧠 Versatile functionality
- 🧰 All-in-one toolbox

**Cons**

- 🐛 Ruler inaccurate
- 🔍 Lack of instructions
- 💰 Ads/in-app purchases
- 🔧 Certain features removed

**Commonly reported bugs**

- App crashes on launch
- Barometer not working
- Inconsistent digital/analog readings in decibel meter

**Most requested features**

- Thermometer feature
- Improved decibel meter
- Better visualization for teslameter
- Ability to use metronome with screen off

## Recent user reviews (10 of 856)

All indexed reviews: https://appshunter.io/ios/app/toolbox-smart-meter-tools/id933528345/reviews.md

### 3/5 — Ruler?

*2026-01-14, version 5.4.0*

Das Lineal kalibriert nicht mit der Displaygröße, stimmt überhaupt nicht und kann nicht justiert werden.

### 1/5 — Anzeige fehlerhaft

*2025-12-31, version 5.4.0*

Mehr als 10% Fehler bei Längenmessung mit iPhone 17 Pro unter iOS 26.2 : angezeigte 10.0 cm sind tatsächlich 11.4 cm (Vergleich mit professionellem Messschieber)

Mit altem iPad mini 4 und iPadOs 15.8 ist die Längenanzeige ok, Ungenauigkeit bei maximal 0.1%. Also, liebe Entwickler: bitte die App auf neue Geräte-Generation(en) anpassen. Dann gibt’s auch wieder mehr Sterne :)

### 2/5 — Missing dB sound meter

*2025-08-13, version 5.4.0*

This is a pretty handy app, but when I installed on my new iPhone, the sound meter was missing. I used that all the time. Where is it? Please bring it back.

### 4/5 — Good app for what it does

*2025-07-30, version 5.4.0*

I think a couple good tools to add would be a decibel meter and a speedometer

### 4/5 — Needs an update

*2025-07-27, version 5.4.0*

This is a great app but the barometer has stopped working. All other tools work including the altimeter and other barometer apps work just fine so the issue is with this app only. 

Update please.

### 2/5 — Outdated

*2025-05-13, version 5.4.0*

The scale of the ruler is way off.

### 5/5 — 👍👍

*2025-04-25, version 5.4.0*

Great useful App

### 3/5 — 3stars

*2025-04-11, version 5.4.0*

This toolbox was performing flawlessly until the barometric pressure portion of the app ceased functioning. The altimeter was working OK, but the actual measurement of barometric pressure stopped working. Very disappointed in that but all the other functions were great.

### 1/5 — Ruler not calibrated on iPhone 15 Pro

*2025-03-14, version 5.4.0*

Ruler not calibrated on iPhone 15 Pro

### 5/5 — Eccellente

*2025-01-16, version 5.4.0*

Eccellente

## Frequently asked questions about Toolbox

### What does the Toolbox - Smart Meter Tools app do?

This app transforms your iPhone or iPad into a multi-functional measuring device. It includes a variety of tools such as a metronome, stopwatch, timer, ruler, surface level, barometer, altimeter, compass, and more, all within a single application.

### What are the key features of this measuring app?

Key features include a precise metronome for musicians, a professional stopwatch for sports, a versatile timer for daily use, a ruler for measuring objects, a surface level for checking slopes, and sensors like a barometer, altimeter, and compass for environmental and directional information.

### Is this app free to download and use?

The app is free to download and offers a range of tools. However, it does contain in-app purchases, suggesting that some advanced features or additional tools may require payment.

### What devices is Toolbox - Smart Meter Tools compatible with?

The app is designed for iPhone and iPad devices. It leverages built-in sensors and hardware of these devices, such as the barometric sensor, GPS, magnetometer, and accelerometer, to provide its measuring functionalities.

### What are some common use cases for this app?

Common use cases include musicians using the metronome, athletes using the stopwatch, home cooks using the timer, DIY enthusiasts using the ruler and levels for projects, travelers using the compass and altimeter, and even for detecting magnetic fields with the teslameter.

## Version history (last 5 releases)

### 5.4.0 — 2019-12-06

Thanks for using Toolbox! Here's what's new for the version 5.4.0:

● Supports latest iOS and devices
● Components upgrade 
● Various fixes & performance improvements

### 5.3.0 — 2018-10-12

● Supports new iPhone and iPad devices
● Supports iOS 12
● Components upgrade 
● Various minor fixes & performance improvements

Thanks for using Toolbox! Please be sure to rate this new version and leave us a review on the App Store. Your feedback is greatly appreciated. We're listening to your feedback and working hard to improving Toolbox.

### 5.2.0 — 2018-06-07

Thanks for using Toolbox! Please be sure to rate this new version and leave us a review on the App Store. Your feedback is greatly appreciated. We're listening to your feedback and working hard to improving Toolbox.

====== What's New version 5.2.0 ======
- Remove Decibel information from description and screenshots
- Components upgrade 
- Several minor improvements

### 5.1.0 — 2018-04-27

Thanks for using Toolbox! Please be sure to rate this new version and leave us a review on the App Store. Your feedback is greatly appreciated. We're listening to your feedback and working hard to improving Toolbox.

====== What's New version 5.1.0 ======
- Components upgrade 
- Several minor improvements

### 5.0.0 — 2018-04-10

Thanks for using Toolbox! Please be sure to rate this new version and leave us a review on the App Store. Your feedback is greatly appreciated. We're listening to your feedback and working hard to improving Toolbox.

====== What's New version 5.0.0 ======
- Fixes a critical crashing bug when at tool selection screen
- Add "More apps" in tool selection screen
- Several minor improvements

## Apps similar to Toolbox

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Tape Measure & Ruler Арр](https://appshunter.io/ios/app/tape-measure-and-ruler/id1453537222) | 4.2 (4,291) | Free | Utilities |
| [Measure](https://appshunter.io/ios/app/measure/id1383426740) | 3.1 (1,569) | Free | Utilities |
| [Tape Measure™](https://appshunter.io/ios/app/tape-measure/id1271546805) | 4.4 (87,981) | Free | Utilities |
| [Flying Ruler: 3D Tape Measure](https://appshunter.io/ios/app/flying-ruler-3d-tape-measure/id667579844) | 4.1 (187) | $1.99 | Utilities |
| [Toolbox PRO: Smart Meter Tools](https://appshunter.io/ios/app/toolbox-pro-smart-meter-tools/id354112909) | 4.5 (3,520) | $3.99 | Utilities |
| [Measure Tools: AR Room Planner](https://appshunter.io/ios/app/measure-tools-ar-room-planner/id1299651802) | 4.5 (143) | Free | Utilities |

## More apps by SkyPaw Co., Limited

- [Toolbox PRO: Smart Meter Tools](https://appshunter.io/ios/app/toolbox-pro-smart-meter-tools/id354112909)
- [Decibel X:dB Sound Level Meter](https://appshunter.io/ios/app/decibel-xdb-sound-level-meter/id448155923)
- [Decibel X PRO: dBA Noise Meter](https://appshunter.io/ios/app/decibel-x-pro-dba-noise-meter/id1257651611)
- [Translator X: Text Voice Photo](https://appshunter.io/ios/app/translator-x-text-voice-photo/id1276098141)
- [Translator X PRO](https://appshunter.io/ios/app/translator-x-pro/id1276098150)

All apps by SkyPaw Co., Limited: https://appshunter.io/developer/1842040687

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-25.*