# Arduino Science Journal — Think like a real scientist!

> Smartphone-based science notebook for data gathering and experimentation. (iPhone/iPad app by Arduino LLC.)

- Source: https://appshunter.io/ios/app/arduino-science-journal/id1518014927 (this page in markdown: same URL + `.md`)
- Developer: [Arduino LLC](https://appshunter.io/developer/1599571672)
- Category: Education
- Price: Free with in-app purchases
- Rating: 4.40/5 from 1,102 App Store ratings · 32 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.1 · 43 MB
- Languages: American English
- Released: 2020-09-07
- Data updated: 2026-08-24
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/arduino-science-journal/id1518014927/reviews.md

## What is Arduino Science Journal?

The Arduino Science Journal (formerly Science Journal, an initiative by Google) is free 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. 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.

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
• Cross-platform support
• Portable: enhance your home learning or bring your device outside to study the world around you
• Fully compatible with Arduino hardware: keep experimenting with the Arduino Science Kit Physics Lab, as well as the Arduino Nano 33 BLE Sense board
• Google Drive integration, as well as local download

---

Terms and Conditions: https://www.arduino.cc/en/sj-terms-conditions
Privacy Policy: https://www.arduino.cc/en/privacy-policy
Children's Privacy Policy: https://www.arduino.cc/en/privacy-policy/children-privacy-policy

## Key features

- Use smartphone sensors
- Connect external Arduino sensors
- Record and analyze real-time data
- Conduct interactive experiments
- Enhance lesson plans
- Cross-platform support

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Yearly Teacher Plan | $63.99 | per year |
| Teacher Monthly Plan | $7.99 | per month |


## What do users think of Arduino Science Journal?

Overall sentiment: mixed

**Pros**

- 👍 Simple and inspiring
- 🚀 Engaging science experience
- 🤩 Turned user into a true scientist
- 🤖 Good introduction to conducting experiments

**Cons**

- 🐛 Keeps crashing
- 🐛 Blank screen issues
- 🐛 Sensors disappear or don't work
- 🤯 Overly complex and poor execution

**Commonly reported bugs**

- App often crashes when trying to add sensors
- Sensor selection menu doesn't work
- Freezes on loading dashboards with blank screen
- Stopped working after iOS 15 update

**Most requested features**

- iCloud sync
- CSV export for data analysis
- Velocity sensors using GPS
- Arduino sensor integration
- Buzzer with variable range

## Recent user reviews (10 of 32)

All indexed reviews: https://appshunter.io/ios/app/arduino-science-journal/id1518014927/reviews.md

### 1/5 — I

*2024-12-05, version 6.5.0*

Hi heishwhhehehgegeiwohehdhkejrjjrjrjfjfjjfjdjfjjdjdnfbfjjfjjrjrnnbf

### 5/5 — So Much Fun

*2024-05-31, version 6.4.0*

Love the ambient light experiment.  Great for my son.

### 5/5 — This is

*2023-11-02*

Tyabk yiy

### 1/5 — Broken

*2023-03-22, version 6.0.6*

Adding sensors doesn’t work. App often crashes when trying to add sensors. Sensor selection menu doesn’t work. Sensors disappear. Unusable basically.

### 5/5 — THIS REALLY TURNED ME INTO A TRUE SCIENTIST!

*2022-11-09*

Thank you

### 5/5 — Simple and Inspiring

*2022-10-10*

A good introduction into conducting your own experiments.

### 5/5 — Incredible

*2022-05-04*

I wish I had known about this years ago. As an engineer I’ve been looking for ways to use my phone as a measurement instrument and this is it!

Get it and contribute to Arduino!

### 1/5 — Keeps crashing

*2022-04-26, version 6.0.0*

Downloaded to teach with but whenever I open up an experiment, it crashes. Deleted and re installed - same problem. Everything is up to date. Annoying.

### 4/5 — Currently Broken

*2022-04-25, version 6.0.0*

🥲dev needs to update etc.

### 5/5 — Epic

*2022-04-08, version 6.0.0*

Very epic
Many Pog
Would recommend to dead grandmother

## Frequently asked questions about Arduino Science Journal

### What does the Arduino Science Journal app do?

The Arduino Science Journal app transforms your smartphone or tablet into a science notebook. It allows you to gather data about the world around you by using your device's built-in sensors and connecting external Arduino-compatible sensors. You can record observations, store sensor data in real-time, and analyze your findings to conduct experiments.

### What are the key features of the Arduino Science Journal app?

Key features include the ability to use your smartphone's built-in sensors (like light, sound, and movement), connect external sensors via Bluetooth for more complex experiments, record and analyze data in real-time, and enhance existing lesson plans. The app also supports cross-platform use and is designed to be classroom and home-school friendly.

### Is the Arduino Science Journal app free to use?

Yes, the Arduino Science Journal app is completely free to download and use. While the app itself is free, external Arduino hardware and sensors are not included and would need to be purchased separately if you wish to conduct more advanced experiments.

### What devices is the Arduino Science Journal app compatible with?

The app is designed for smartphones and tablets and offers cross-platform support, meaning it can be used on various devices. It requires Bluetooth connectivity for external sensors and may also utilize the camera, microphone, and photo library for specific sensor functions and documentation.

### How can students use the Arduino Science Journal app?

Students can use the app to conduct interactive experiments, explore their surroundings scientifically, and learn by doing. It's suitable for enhancing classroom activities, engaging in home-school projects, or simply exploring scientific concepts independently. The app encourages students to move learning outside and observe the world through data.

## Version history (last 5 releases)

### 6.7.0 — 2025-07-14

Added compatibility for new upcoming products

### 6.6.0 — 2025-01-16

The Teacher Plan feature has been discontinued and is no longer available. Rest assured, all the core features of the app remain fully accessible.

### 6.5.0 — 2024-10-23

Starting from this version, the Teacher Plan will no longer be available for subscription. In the next version, the associated features will be removed.

### 6.4.0 — 2024-04-17

What's new:
- This update contains infrastructure improvements and fixes related to Collecting experiments & Barometer sensor readings
Bug Fixes:
- This release addresses issues when there are no experiments to collect and the App Crashes when you click on "Collect All" button
- Added fitness and motion user privacy permissions for Barometer readings

### 6.3.0 — 2023-12-18

This update contains fixes related to triggers, as well as downloading PDF issues.

What’s New:
- New features: This update introduces new features for the Science Carrier R3.
- Accurate readings: We have updated the readings from the Voltage and Current sensors of the Science Carrier R3, so that you can now make even more accurate readings up to two decimal places.

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## More apps by Arduino LLC

- [Arduino IoT Cloud Remote](https://appshunter.io/ios/app/arduino-iot-cloud-remote/id1514358431)

All apps by Arduino LLC: https://appshunter.io/developer/1599571672

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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 2026-08-24.*