New from Phoebe · free for iPhone
Phoebe Understandings
Learn how markets, trading and trading machines really work.
One idea at a time.
Free for iPhone, on its way to the App Store.



What you learn
Four tracks. Sixteen readings.
Investing, day trading, and trading with automated systems and AI: about four hours in all. Each track follows one person through four readings.
Investing with Maya
Maya is 26, in her first real job, with $3,000 sitting in savings.
- A1What Is Investing?
- A2How Investing Works
- A3Investing for Beginners: Your First Plan
- A4The Risk of Investing
Day trading with Sam
Sam, 31, works full time and has watched trading clips for months.
- B1What Is Day Trading?
- B2How Day Trading Works, Part 1: Reading a Chart
- B3How Day Trading Works, Part 2: Anatomy of a Trade
- B4The Risk of Day Trading
AI & automated systems with Jordan
Jordan fixes things for a living and wonders: could a bot trade while I’m at work?
- C1What Is an Automated Trading System?
- C2What Is AI, Really?
- C3Your Options: From Alerts to Autopilot
- C4How to Get an Automated System
Trading from your room with Riley
Riley trades a little in the mornings before work, and wants to automate it.
- D1Making Money From Your Bedroom: What’s Real
- D2The Risk of Trading With Automated Systems
- D3AI as Your Co-Pilot, Not Your Pilot
- D4Clone Your Strategy: Teach a Machine How You Trade
How a reading works
One idea per tap.
Each reading is a short story in chapters. You go one screen at a time, and the pictures build as you go.
- Tap. One idea on each screen. Read it, tap Next, and the next piece arrives.
- Slide. Move a number and watch what changes: inflation against a savings rate, fees against growth, a stop against the size of a trade.
- Check. Quizzes, sorts and chart drills where you tap the candle. Every answer, right or wrong, tells you why.
Every real number, study or event links to where it came from. Made-up examples are marked Illustrative.


Practice and Saved
Keep what you read.
Practice gives you a short set each day from the readings you’ve finished: review cards, a chart drill and a scenario. Skill bars show how your answers are going, and the Playground lets you try every slider again.
Saved keeps your insight cards. Tap the heart on an idea worth keeping, and it’s there to reread or share as an image.
Set a daily goal of 5, 10 or 15 minutes, and a reminder if you want one.

Free, and private
Nothing to buy. Nothing to sign up for.
Free
No price, no subscription and no in-app purchases. Every reading is included.
No account
Open it and start. No sign-in, and no email address to give.
No ads or tracking
No analytics, ads or tracking, and nothing collected. The readings are built in, so it works offline.
On your iPhone
Progress, answers and saved cards stay on your iPhone. Reset Progress, or delete the app, and they’re gone.
The details are in the privacy policy.
A sister app to Phoebe
Phoebe Understandings is made by Phoebe Markets LLC, the company behind Phoebe. It’s a separate app: it doesn’t connect to Phoebe, to a brokerage or to any account, and you don’t need one to use the other.
One idea at a time.
Free for iPhone, on iOS 17 and later.
Free for iPhone, on its way to the App Store.