A canvas that is big enough
Toggle the grid, axes and ticks; pinch to zoom, drag to pan. It reflows automatically across portrait, landscape and unfolded foldables, with the toolbar tucked into the right status strip.
iPhone · iPad · iPhone Duo
PhysicsLab
A zoomable canvas with the full mechanics toolkit — balls, inclines, tracks and fields. Drag things into place, design motion conditions next to the graph, and watch the trajectory while it runs.
Why PhysicsLab
Textbook force diagrams are static; physics is not. I wanted placing an experiment and watching it run to feel as easy as sketching on paper.
Five scenes, one tap each
Gravity + ground, gravity + table, incline + ground, electric field and magnetic field. Pick one and the ball and field are placed for you.
Step-by-step, live solutions
Start, pause or end a step. The time window, trajectory, v-t graph and live solution update together.
A look inside
Tap a screenshot to see it larger.
Every quantity is editable
No formulas or commands — select an object and change the numbers.
Property panel
Mass, velocity, charge, radius and friction — select and edit, the canvas updates at once.
Conditions and graphs
Set conditions beside the v-t graph, equation and start/end points.
Trajectory and time
The real trajectory is drawn as it runs, with the current time in a floating window.
Drag to build
Drag tools from the rail, snap on release, then move and resize objects.
Foldables and iPad
On an unfolded Duo the rail moves into the status strip and the canvas fills the screen; iPad and iPhone work in both orientations.
No account
Data stays on your device. No sign-up, no upload.
On its way to the App Store
PhysicsLab is feature-complete and going through App Store review. Email me if you want a note when it ships.