Sensors Toolbox vs Key
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sensors Toolbox
Access and visualize data from all your smartphone's sensors in real time. Collect information from accelerometers, gyroscopes, GPS, barometers, and more, then convert it into easy-to-read graphs. This app offers a clean, intuitive interface for comprehensive sensor analysis.
- Real-time sensor data collection
- Accelerometer, gyroscope, GPS
- Barometer, decibel meter, metal detector
- Compass functionality
- Intuitive graph visualization
- User-friendly interface
Read full descriptionHide full description
Sensor toolbox makes the most of all the sensors in your smartphone. With a user-friendly interface and easy to read layout, Sensor Multitool - Toolbox allows you to collect data in real time for any and all sensors on your phone. Convert the data into easy to read graphs with a detailed readout from each sensor. This app contains everything you need: an accelerometer, gyroscope, GPS Data, barometer, decibel meter, metal detector, compass, and much more. This app follows all material design guidelines, meaning the app is clean and simple to use This app uses intuitive graphs to create clean, orderly graphs of all data collected.
Key
Read full descriptionHide full description
Simply input those key pieces of information and you can very quickly get at them when you need them. Shown in nice big font size so you can reference it as you need. Tapping on an element will copy it to the clipboard so you can paste into another app or web form. You can create items from a list of suggested types but can also choose your own type and image.
Screenshots
Verdict
The clearest difference is ads: Key at none against Sensors Toolbox's shown. Key also leads on iOS requirement (13.0 vs 15.0). Sensors Toolbox's advantage is update cadence (every 7 months vs every 21 months). On price, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Sensors Toolbox ships an update every 7 months, Key every 21 months. The most recent releases landed on October 16, 2026 and October 5, 2026 respectively.
| Parameter | Sensors Toolbox | Key |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (134 ratings) — better | — |
| Positive reviews | 52.8% of reviews | — |
| Number of ratings | 134 — better | — |
| Update frequency | Every 7 months — better | Every 21 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 17 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Andrew Neal | Paul Barnes |
In-app purchases
Sensors Toolbox
No in-app purchases
Key
No in-app purchases
Questions
Is Sensors Toolbox free?
Is Key free?
Do Sensors Toolbox or Key have ads?
Which is updated more often, Sensors Toolbox or Key?
Other comparisons
