3 apps to learn science in your spare time

First, choose what you want to do with that curiosity

An app can contain plenty of information and still be a poor fit for the moment. In a queue, you may want a reading you can return to. With a table and an interest in physics, a measurement tool opens a different route.

The table compares activities without scoring them. Use these questions to choose a starting point:

• Do I want to explore images and follow a space mission?
• Do I want to explore what a phone sensor records?
• Do I want to read about research and open its source?

1. NASA: explore missions, images and stories about space

The official NASA App page describes images, news, mission information, podcasts, augmented reality experiences and access to NASA+. It offers a choice of formats for someone arriving with a question about space.

For a break, our suggestion is to open a single image or mission update. Read its explanation and note a question: what it shows, which instrument collected the data or what researchers are trying to find out. Choosing one piece gives you a place to return to later.

If you prefer video, NASA describes NASA+ as its free, ad-free service, with no subscription. Check the length of the item you choose; being inside an app does not mean every piece fits into a short break.

Official documentation: NASA App ↗

2. phyphox: use your phone to explore a measurement

phyphox provides access to phone sensors for experiments and lets you export data. Its strength in this selection is the opportunity to move from viewing information to exploring a signal recorded by your own device.

Its FAQ explains that it is primarily a collection of tools: each experiment's description explains what it does and requires. The FAQ also notes that available sensors depend on the phone and the access its operating system allows.

Start with an experiment whose description you can follow, identify what it measures and look at the graph's units. Keep one question before switching tools. If you want something you can read without preparing an experiment, consider the other options in this guide.

Official documentation: phyphox ↗

3. PaperFlow: discover a question in a research study

PaperFlow offers short readings about papers, with access to the original source. The open reading library lets you explore this website's content without an account. Readings are available in Spanish and English on topics including mind, behavior, climate and technology.

The activity differs in a concrete way: the starting point is research carried out by someone else. You can read the idea, follow the reference and decide whether to go further. For observations from your own phone, phyphox serves another need; for a space mission, NASA provides that context.

To try the format, choose a library title that raises a question for you. After reading, try describing what was investigated and what you would like to know next. Our guide to reading a paper supports the next step when you open the original work.

Official documentation: PaperFlow ↗

What to check before choosing a science app

Beyond the topic, consider what you will be able to do in your actual setting. Listening to an episode, viewing an image, reading a text and preparing a measurement make different demands on a spare moment.

These are editorial criteria for comparing your options. Check each service for current details:

• Format: decide whether you want to read, listen, watch or measure.
• Language: PaperFlow has ES/EN readings; we did not verify complete translation of the other apps and their content.
• Device: for experiments, check the sensors and requirements listed by phyphox.
• Access: check which resource you can open and whether it requires a connection or account.
• Continuity: keep the link or question that will let you resume exploring.

A small route for your next break

You do not need to use all three options or turn them into another task list. Choose an activity that interests you today and leave yourself a way back: an image with its explanation in NASA, a measurement's description in phyphox or a reading and its source in PaperFlow.

Before closing, finish one sentence in your own words: what you found and which question it left you with. An unfamiliar term can wait for another break. This is a suggestion for organizing your exploration, without promising a learning improvement or a fixed time to achieve one.

When another kind of tool may fit better

If you want to follow lessons or practice solving problems, explore our general comparison of learning apps as well. This selection focuses on exploring science through media, research or measurements.

If you already have a specific PDF and want help working through it, our guide to tools for understanding papers distinguishes that task from editorial discovery. Choosing the activity first gives your next phone session a direction that interests you.