New in 3.3: • Feel and hear the water: soft haptics and a quiet water sound follow the flow as it surges, hits the walls and settles. One tap turns them off. • Lifelike spray and thin water: splashes, sheets and spray now show as a light, airy film. • Section Plot: water surface, bed, velocity and bed pressure along any upright 3D section. Drag to read values, then share it as a picture or data. • Import models at actual size, with their real dimensions and elevations. Too big for the tank? Add and fit tank grows the tank around it. • Real-world elevations: heights, probes and levels read as they are on site, for example 205.00 m. • Tanks up to 10 km a side. • Smoother section views, with clean edges on models and water. • Flow detail in Look: choose Smooth, or Swirly for more small eddies and sharper detail (slower). • Shared pictures and clips now carry a small Made with PocketFlow tag. PocketFlow is free to try for 7 days, then a single one-off purchase unlocks everything for good. Bought it before? You're already unlocked.

New in 3.2: • PocketFlow is now free to download: try everything for 7 days, then unlock it for good with a one-off purchase. Already bought it? You're unlocked automatically, nothing to do. • Slice to 2D: cut any 3D scene along or across the flow and open it as a 2D scene, at full size or as a 1:N model. Models and terrain come through as solid shapes, with a short note on what changed. • Drag the tank: pull any side's knob in Sides to size the tank, in 2D and 3D. Water levels and inlets keep their heights. • Several blocks of starting water: add, move and size water anywhere in the tank. • Touch-first 2D editing: press and hold a solid for its menu (duplicate, copy, make a cut-out, exact size), undo and redo with a tap, and snap guides that line things up as you drag. Drag a line across the flow to read it with the new section and level probes. • Stretch the height or mirror the 2D view for long, flat channels. • Smoother water against solids, an Ortho view for true elevations and plans, and streamlines along the whole tank. • Scenes open paused: press ▶ when you're ready.

New in 3.1: • Bring your own 3D model: import an STL from Build, Files, Mail or AirDrop. Pick its unit and a model scale (the largest that fits is suggested), and full-scale numbers follow your scale. • New template, Mystery dam: a dam and spillway built from an STL at 1:100. The dry valley fills, spills, and the jump forms in the stilling basin. • Models and shapes can poke through the walls and floor; only the part inside the tank counts. • Snap guides, duplicate in place, and resizable 2D shapes. • Sides: "Allow inflow" on water levels, and "Start empty" for a dry start. • Iso, Front, Top and Side views in Build, clearer In and Out numbers, and many small fixes.

PocketFlow 3.0 is a whole new app. • 3D Build: add boxes, spheres and cylinders by touch. Slide with an axis lock, size any side, turn about any axis. • 3D templates: Channel + pier, Weir, Dam break, Labyrinth weir, Dam & stilling basin. • 2D Sketch, rebuilt: draw solids with a pen, box or oval. Templates: Open channel, Dam break, Sluice gate, Weir. • Sides: inlets by velocity or flow rate, water levels, or open to the air. • Colour by water, velocity or pressure, plus a section view in 3D. • Probe pins with live readouts, streamlines and a measure ruler. • Live In and Out, with a Filling or Steady cue. • Tilt your phone to slosh the water. • Full-scale values: pick a scale like 1:25 and see every number at full size. • Trace over a background photo in 2D. • Share a photo or a 10-second clip. • Quick start, autosave with Continue, and Reset.

What's New in PocketFlow 2.1 - Solver architecture update to enhance accuracy and stability

What's New in PocketFlow 2.0 **Smarter Tool Organisation** No more cycling through modes - obstacle placement and flow analysis are now separate for faster workflows ** Interactive Flow Tracing** See exactly where your fluid goes! New streamline tool shows real-time particle paths with just a touch **Master Jet Dynamics** Control water jet behaviour by fine-tuning inflow heights - perfect for understanding pressure effects **Rock-Solid Simulations** Improved solver delivers faster, more stable and accurate results for better experimentation