iPhone 17: Inside the Glass
Like Duolingo, but for iPhone 17: Inside the Glass. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
For the part of you with thirty open tabs that never became anything.
Free during early access · No credit card · iPhone & Android

Key ideas in iPhone 17: Inside the Glass
- Heat causes the processor to slow down to prevent hardware damage
- The screen is a major heat source and dims to reduce temperature
- Removing a protective case allows heat to escape the back glass
- Lowering screen brightness reduces the internal heat generation
- Why the phone slows down and dims during heavy use
- Effective ways to cool the device while continuing to use it
- External heat adds to internal heat to reach the safety limit faster
- The phone slows its brain to stay below a dangerous temperature
- The relationship between external environment and internal speed
- Standard screens refresh 60 to 120 times every second
- The screen shuts off when the phone is face down or in a pocket
- The Always-On screen drops to just one refresh per second
- The display turns off if you walk away while wearing a paired Apple Watch
- How the display achieves power efficiency through refresh rate reduction
- Identifying scenarios where the display intelligently turns off to save power
- Removing the colorful wallpaper reduces the number of active pixels
You've tried the other tabs
Thirty open tabs. Four facts you actually kept.
You watched. You nodded. By Sunday it was gone.
One answer, then back to scrolling.
Eight weeks. You meant to finish. You didn't.
Tomo gives iPhone 17: Inside the Glass the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.
Here's what playing it feels like
A real question from this course. Take your best guess.
Why might your screen suddenly lose its brightness while you are using it in the sun?
Get it right to open this lesson and 25 more in the app.
Where iPhone 17: Inside the Glass takes you
Go beyond the screen to master the cutting-edge hardware of the iPhone 17. Learn to optimize your device's performance and understand the engineering marvels that power your daily life.
- 1
Master Your Daily Performance
- Managing the New Thermal Limits
- Optimizing the Always-On Display Logic
- Balancing High Refresh Rates and Battery Life
- Customizing the Action Button Workflows
- 2
The Art of the Modern Lens
- How the Periscope Zoom Bends Light
- Computational Photography: Beyond the Pixel
- Managing Large ProRAW File Workflows
- Depth Sensing for Augmented Reality
- Low-Light Video and Sensor Stabilization
- The Science of Natural Skin Tones
- 3
The Architecture of Speed
- The 2-Nanometer Chip Revolution
- How On-Device Intelligence Stays Private
- The Future of Satellite Connectivity
3 sections · 13 units · 26 levels. Built to play, not to enroll.
You pick the voice
iPhone 17: Inside the Glass is taught in the The Professor style: clear, structured, thorough. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.
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Start iPhone 17: Inside the Glass today.
Download Tomo, search iPhone 17: Inside the Glass, and play your first lesson in under a minute.