The Arduino Science Journal is one of the BETT Award 2021 Finalist in the "FREE DIGITAL CONTENT OR OPEN EDUCATIONAL RESOURCES" category.

The Arduino Science Journal (formerly Science Journal, an initiative by Google) is free and open-source, and allows you to gather data about the world around you by harnessing the sensors in your smartphone as well as sensors connected to Arduino, or other third party hardware. The Science Journal transforms smartphones and tablets into science notebooks that encourage students to explore their world.

The Arduino Science Journal app is recommended for students from 10 to 18 years of age, and is available in 45 languages.

About Arduino Science Journal
With the Arduino Science Journal, you can learn interactively, conduct experiments and iterate on findings.

Enhance your existing lesson plans: use the Science Journal with activities and assignments you have already prepared
Classroom & home-school friendly: you don’t have to be in a classroom setting to start exploring. The Arduino Science Journal can be used to run experiments straight away, as long as you have your smartphone or tablet with you!
Move learning outside: the use of mobile devices along with the types of experiments we offer encourage students to get out of their seats and open their eyes to the world around them through the power of science
Science and data have no secrets: you can easily record your observations, store your data sensors in real-time and analyse them, just as a proper scientist!
Connect the digital and the physical world from your pocket: go through a series of simple tutorials and start having fun with science

With built-in device sensors as well as external hardware, you can measure light, sound, movement, and much more. You can also compare results, and even set triggers.

Together with the external hardware, (not included with the app), students are enabled to conduct more complex experiments, and advance in their scientific studies. As long as the external sensors are compatible with a Bluetooth-connecting device such as a microcontroller, there is no end to what experiments the students can make. Some popular sensors that the app can work with are: light, conductivity, temperature, force, gas, heart rate, respiration, radiation, pressure, magnetism, and many more.

The app is classroom-friendly, since students can sign in on any device and access their experiments to continue exploring the world, wherever they are!

Permissions notice:

• Bluetooth: needed to scan for bluetooth sensor devices.
• Camera: needed to take pictures to document experiments and for the brightness sensor.
• Photo Library: needed to store pictures taken to document experiments and for adding existing photos from your library to experiments.
• Microphone: needed for sound intensity sensor.
• Push notifications: needed to inform you of recording status when backgrounding the app.

Benefits of using the Arduino Science Journal
It’s free and simple to use
Easy setup: download the app and start exploring with your phone’s built-in sensors
Portable: enhance your home learning or bring your device outside to study the world around you
Safe for children to use: COPPA Compliance underway
Fully compatible with Arduino hardware: keep experimenting with the Arduino Science Kit Physics Lab, as well as the Arduino Nano 33 BLE Sense board
Compatible with third-party hardware
Fully open-source: you can develop your own hardware support as the app is open-source

What’s New

Version 5.0.1

Minor bug fixes
Italian translation
Update of Terms and Conditions

Ratings and Reviews

4.6 out of 5
420 Ratings

420 Ratings

CS(citizen science) ,

More export options

Thanks to Arduino team keep this great app going. Iblikebtjebuodayed looks of the UI and integration with apple iCloud file transfer. Could the team add CSV file export? It currently has two options: PDF and science journal. Both of existing former are not data analysis friendly. Much thanks!

Developer Response ,

Thanks for the marvellous review! We are going to include additional features, and we'll make sure to add this to our backlog for future development.

itsanp ,

Engaging Science within the application

I am grateful to experience this app. I would consider the app an essential. it’s data potential is personalized making anyone curious enough a scientist.

Developer Response ,

Thanks for such lovely review! We will keep working on improving the experience on the app.

mamatothetribe ,

Loved this but concerned about privacy

I see no option for not allowing access to my photos. And no promise that access to camera will only be used during app use for light sensor or pictures and information will not be stored. This was promised for access to microphone, so I feel like it’s going to be used differently.

Developer Response ,

Dear user, thanks for your review.
Science Journal is a COPPA compliant app targeted at kids, for this reason we DO NOT have access to any of your data nor information. We do not store any of your information which can solely be accessed by you locally.
All permission notices are available in the app store listing. These permissions are asked the first time you use the app, but you can revoke them at anytime from your phone's settings.
The app leverages in-build sensors on your phone or external sensors via Bluetooth (available on your Arduino Nano Sense for instance), so if you revoke access to the smartphone's microphone - for instance - you won't be able to measure the sound intensity or pitch of a sound from your device. For more info contact us on, we'll be happy to assist you further with the enquiries you may have.

App Privacy

The developer, Arduino, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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