Swipe the Flow vs Armor Sandbox

Pour water, draw walls, and change the flow with your fingertips. Swipe the Flow is a hands-on playground for water, wind, and smoke. Enjoy the basic features of all five free-play modes and the first five stages of each of the five challenge games for free. Unlock more challenges and premium visuals with Pro—a one-time purchase, not a subscription. NEW CHALLENGE: WIND TARGET Draw walls, then rotate, move, and carve shapes. The arrow shows how hard the wind pushes—keep its tip inside the box to win. Kites, a sailboat, an umbrella, roof luggage, and a bike behind a truck all catch the wind. • Stages 1–5 are free; Pro includes stage 6 onward • Longer arrows mean a stronger push WATER PLAYGROUND Catch water from a faucet and guide it along walls. Add a drain, pour or erase water, and stir it with your finger to build your own waterway. • Move faucets and drains; adjust each one's size, direction, and speed • Build with cups, funnels, photos, and shapes • Tilt your device to move the water and adjust its thickness • Basic features are free, with up to 10 faucets and drains combined FIVE WAYS TO PLAY • Water Playground: Pour water and draw walls to shape its flow. • Smoke Lab: Follow smoke to see invisible air. Adjust each chimney's smoke output and add a Smoke Drain. • Wind Tunnel: Watch wind split around walls, photos, and logos. Turn on flow lines and wind push indicators to explore what happens. • Liquid Art: Create, push, stretch, and merge liquid drops. Tilt your device to move them. • Flow Painting: Swipe across the screen to draw colorful currents and spirals. FIVE CHALLENGE GAMES • Wind Target: Change the shapes to get the tip of the wind's arrow into the box. • Make Waterways: Draw walls and erase holes to send water where you want it. • Wind Paths: Draw walls to guide wind into the target. • Wind Maze: Carve a route and get the wind out before time runs out. • Smoke Delivery: Move chimneys and draw walls to send smoke where you want it. Stages 1–5 are free in each game. Pro includes Wind Paths 6–15, Wind Maze 6–17, Smoke Delivery 6–16, Make Waterways 6–24, and Wind Target 6–18. Try Game Center leaderboards and achievements, then share a photo of your cleared stage and record. CREATE AND SHARE • Import photos and logos, with background removal on your device • Move, resize, and rotate photo and shape layers with editing handles • Choose flow strength, playback speed, colors, and detail • Pause, reset, save photos, record videos, and share • Photos and videos are processed on your device SWIPE THE FLOW PRO One purchase. No subscription. • Challenge stages beyond the free section • No watermarks • More detailed simulation and all premium visual styles • Up to eight photo or shape layers • Up to 20 chimneys and Smoke Drains combined in Smoke Lab • Up to 20 faucets and drains combined in Water Playground The free version includes two photo or shape layers. Every day, one Pro stage is free at the top of Home in "Today's Picks." Create without a fixed answer, or take on a puzzle with a goal.

Armor Sandbox is a 2D physics sandbox and ballistics simulator. Pick something to shoot, pick something to shoot at, and watch what actually happens: armor penetration, ricochets, spalling, fire and explosions, all from real physics. Nothing here is a canned animation. Every armor plate, every projectile and every fragment is made of particles that carry real material properties: density, strength, toughness, melting point, heat capacity. Deformation, fracture, spalling, heat, fire and detonation all come from those numbers. Swap the steel for glass and it shatters instead of denting, because glass is brittle, not because somebody drew a shatter effect. NEW: THE SCI-FI EXPANSION Black holes, antimatter, lasers and the end of the universe, running on the same physics as everything else. 16 new materials, from a black hole generator, antimatter and lasers to strange matter, a force field, hyper-acid, a fusion core, a false vacuum and neutronium. Paint them into any target or projectile. The built-in sci-fi scenes are free to watch. The expansion is an optional one-time in-app purchase and works without the full version. TANK ARMOR PENETRATION Fire an APFSDS dart at a Leopard 2, a HEAT round at a T-72 with reactive armor, or a rifle bullet at a steel plate, and the ballistics decide the result: how deep it goes, whether it ricochets, and what the spall does inside the tank. WHAT IS IN IT • 110+ materials: steels, aluminium alloys, tungsten, uranium, ceramics and glass, concrete and stone, wood, rubber, water, fuel, explosives, nuclear materials and working electrical parts • 70 projectiles: pistol and rifle bullets, APFSDS long rods, shaped charges, HESH, railgun slugs and three detailed missiles • 90+ targets: armor plates, layered armor, deep blocks, ballistic gelatin, bunkers and circuits • 36 tank and vehicle cutaways: T-34-85, Tiger I, Panther, Sherman, IS-2, T-55, M103, T-72 with and without reactive armor, M1A2 Abrams, Leopard 2A6, Challenger 2, BMP-1, M113 and more, plus cars, trucks, a bus, a tractor, a fighter jet and attack helicopters, each with its real armor, ammunition, fuel and engine inside • 60+ ready-made experiments, from a ricochet to a chain of nuclear explosions MAKE YOUR OWN Paint projectiles and targets pixel by pixel, choosing the material of every pixel. Mirror, outline, replace, snap to a grid. Save them to your library and share a design with a friend, or with the community Workshop, as a single small file. WIRE IT UP Batteries, capacitors, switches, sensors and delay lines. Current goes only where you drew a path. HEAR IT, RECORD IT Impacts, explosions, fire and projectiles flying past all sound like the material and the speed. Record your shots as video and share them. NO ACCOUNT, NO ADS, NO TRACKING There are no ads and no account. Nothing you build leaves your device unless you export it yourself. FREE, AND FULL Watching is free. Every built-in experiment runs in full, explosives, nuclear devices, circuits and the sci-fi scenes included, and so does every vehicle and every material a preset uses. The full version is for making things: painting with energetic, nuclear and electrical materials, editing the properties of every material, a library without the five-per-kind limit, exporting your designs, and the Extreme and Maximum quality levels. One payment, no subscription. The Sci-Fi Expansion is sold separately, and the Everything bundle includes the full version and the expansion. Available in English, Portuguese, Russian, Spanish and Chinese. Armor Sandbox is a physics simulation made for curiosity. Everything happens to particles in a 2D cross-section, and nothing in it is a guide to building anything real.