When comparing Space Agency vs SimpleRockets, the Slant community recommends SimpleRockets for most people. In the question“What are the best space-themed games for Android?” SimpleRockets is ranked 5th while Space Agency is ranked 14th. The most important reason people chose SimpleRockets is:
Simple Rockets is a breeze to pick up and play thanks to the swift way it allows one to build a rocket right off the bat and launch it.
Specs
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Pros
Pro Similar to Kerbal Space Program, but with the convenience of being made for mobile devices
Space Agency may not be as deep of a game or have the same type of graphics and physics but it is a fun game that you can play on your mobile devices. Developed for both Android and iOS, Space Agency can be played on many mobile devices.
Pro Challenging difficulty that takes time to master, but is rewarding in the end
Space Agency is not a particularly hard game, it's just difficult and takes time to master. Space Agency plays out in a series of tasks that must be accomplished within time, these tasks play as a series of mini-games that link to each other as you progress. If you make a mistake in any of these stages you will probably have to start over, but play enough and you will begin to complete tasks and progress through the levels of the game.
Pro Simplified rocket physics keeps the game accessible
Rocket Science can be tough, but Space Agency makes it fun. Using a simplified physics model for space, this game will help you understand the basic concepts of space travel. You will build a rocket powerful enough to lift out of Earth's gravity and then place that craft in an orbit around your favorite place in the solar system.
Pro The historical rockets lend some real world credence for fans of historical space programs
For fans of space travel Space Agency has a large selection of parts from many historical space programs, including rockets from British, Soviet and US space programs. You will be able to build rockets with parts from your favorite rockets.
Pro Low barrier to entry thanks to the intuitive interface
Simple Rockets is a breeze to pick up and play thanks to the swift way it allows one to build a rocket right off the bat and launch it.
Pro Rewards creativity by allowing the user to experiment endlessly
It's really fun to experiment with the essentially infinite rocket designs you can come up with.
Cons
Con Certain parts must be unlocked via IAP
Con Has in-app purchases
Space Agency, even though it is free to play, does have in-app purchases that range from $1.07 - $4.99 per item. These items aren't required, however they are useful in the Sandbox game mode, where people will spend most of their time in the game.
Con The building aspect is limited
Although the building is good, it has a limitation: you cannot place extra objects beside your rocket, requiring you to build stations piece-by-piece (The exception being boosters, which help you get beyond the atmosphere.) Along with that, there are some objects, such as the Voyager 1 parts, which are difficult to piece together, and can't be taken in the same launch, as well as being badly-designed. (For example, to construct the Voyager One, you must have enough space to back up toward the body piece and release the head piece, instead of just connecting the bottom of the head to the body, which is how it'd be done easier and less dangerously.)
Con Includes in app purchases
Simple Rockets, despite being upfront paid at $1.99 also includes in app purchases that are $0.99 per item.