SimplePhysics vs Pocket Galaxy

SimplePhysics lets you design complex structures for everything from tree houses to ferris wheels and then simulates your design with a sophisticated physics engine. A wise person once said: "An engineer is someone who can do for a dime what any fool can do for a dollar." In SimplePhysics, your design must not only be strong enough, it must be cheap enough to win. Create your design in seconds with the blueprints editor. If you make a mistake, simply tap the Undo button. Zoom in and out by pinching the screen and pan the view using a two finger drag. While testing, you can see how the strain is distributed across your design. Areas that are under immense strain are colored bright red, while other areas are colored green. This allows you to find and fix problem areas in your design. The finger test lets you use your finger to push and pull on your design. You can use this with pinpoint accuracy, or you can just smash your design to smithereens. The finger test has an explosive new twist. You can now create explosions by tapping the screen for ultimate annihilation. The newly added Bomb Shack level includes a dummy with full support for ragdoll physics. Throw him around, blow him up, and smash him against your design. The slow motion feature lets you slow things down so you can see how your design is failing, and it is also incredibly fun to watch explosions destroying your design in slow motion. Features * Realistic physics simulation * Ragdoll physics * Slow motion mode * Stress display shows problem areas in your design * Wide variety of levels! * Finger Test - smash your design to pieces, or blow it up with realistic explosions! * Save/Load designs * E-mail your blueprints to your friends * Universal support for the iPad

Drop a planet into empty space and watch gravity take hold of it. Pocket Galaxy is a 3D gravity sandbox where you place planets, stars and moons and then watch them orbit under real, physics-based simulation. Arrange a solar system exactly how you like it, then take it apart: heat worlds until they glow, freeze them solid, hurl asteroids, fire solar rays and set off chain reactions. There are no levels and no timers. The sandbox is the whole game, and the only clock is the one gravity keeps. What you can do • Sculpt entire solar systems from a near-infinite variety of worlds • Tune each world's gravity, size and orbit, even flip gravity to repulsive • Reach for cosmic tools: asteroid storms, solar rays, ice rays and explosions • Unlock new world and star types as you experiment • Discover procedural worlds, gas giants and glowing stars • Track your creations, and how life develops, in the Planet Journal • Save, load and screenshot your universe to share Relaxing and powerful at once, Pocket Galaxy turns real orbital mechanics into a toy box. Build a calm, life-bearing system, or smash it to particles; there is no wrong way to play it. This is the full paid version. No ads, no in-app purchases, no interruptions. Pay once and own the whole universe.