Freedom

Freedom is basically Akira in Space. 

They both are based on space travel between the moon and Earth. It's a must watch for any sci fi fan.  

Both movies in a genre of science fiction. Both in a post-apocalyptic setting. From how it looks to me, Freedom seems to be the developed embodiment of some plot ideas of Pale Cocoon 

Both based on story about first space flights to unknown above. But freedom have much more deeper story and character development.  

READ---> Both take place in the post-apocalyptic time strain, both are about a grandiose journey in which many truths are uncovered. Both are about a civilization living in a life support dome, under severly strict governmental rule, and both have strong routes in human will and the need for freedom and the truth. There are many more small similarities that you will pick up as you whatch these as well. If you've seen one, you'll love the other. Trust me. 

Protagonists from space have been told lies by their government about the planet Earth and the fate of humanity there; they travel to Earth and find humans living cosily in the post-apocalyptic Earth. Some cultural clashes ensue; moreso in Gargantia since Ledo is a soldier whereas Takeru and his friends are underground racers. Both involve molluscs. 

Patema Inverted is a lot like Freedom. Both of their plots can be summed up as; two human civilizations are separated from eachother after an apocalyptic event and pretend the other doesn't exist. Journeys between the two worlds, a photograph and an ambitious project that ended in disaster will have serious impact... The setup and feel is very similar. In Patema Inverted there are Agia and those that live underground. Agia is a police state disguising itself as a utopia where the characters there are drones except for a select few. The underground is dark but cosy. In Freedom, the technology superior civilization is the Moon, including Eden a police state similar to Agia. The government there would like everybody to be drones but the characters we see don't play by the rules and nor do their rivals. Eden is like Agia but there are also areas of the Moon like Freedom ward that has the cosy atmosphere of the underground in Patema Inverted. On Earth, the remnants of humanity there live in the ruins with a society similar to the underground in Patema Inverted. The characters of Patema Inverted really reminded me of a mix and match of Freedom characters. Age is surrounded by the memory of his father similar to Ao, the heroine of Freedom and Patema is motivated to visit Agia due to a photo similar how a photo motivated Takeru and Bismarck, the protagonists of Freedom, to visit Earth. However, Takeru and his friends are also similar to Age because they constantly rebel against the government. read more 

At first we can see the (lunar) city where people live in peace and boredom, until main characters don't discover the truth about their society. They seek FREEDOM for themselves and righteousness for the population. For that, they need to escape from The City. Sounds familiar, ne?)  

Both are very short hard-science fiction anime about adolescents, conspiracies, and government secrets. They all feature a very realistic depiction of space travel and its effects. Freedom is more of a dirtied spacepunk post-apocalyptic future where two rebellious streetracers on the Moon end up on Earth and need to make they way back. Along the way they try to figure out what the mysterious "Freedom" the people on Earth talk about. The Orbital Children presents a clean and luxurious future in space juxtaposed with a government that would commit infanticide, an a conspiracy involving an AI uprising of apocalyptic proportions. 

These two carry a similar energy that longs for human redemption 

If you like the post apocalyptic setting of Freedom where humanity lives within a very constrained existence, you will probably enjoy Shingeki no Kyojin. It's not a space drama, and there really aren't any other similarities with characters or art, but both main characters are on a quest to live freely beyond the tight limits humanity has set because of apocalyptic-like events (think Gurrenn Lagaan). 

While almost 20 years apart in creation, both feature space colonization plotlines, and high production values, young people (mentored/taken in by an older male) on tri/mono/motorcycles who get embroiled with opposing factions in some sort of larger scale conflict. There are also aspects of political critique that emphasizes the differences in 'freedom' on the colony and the Earth. 

Both involve humanity having shifted from a dying Earth, to live seemingly ideal lives in space. Both involve strained relations between people living freely on Earth and those in a strictly controlled utopia in space. Both involve confident protagonists who visit Earth and later try to change the way things work, back in space. Both also use similar styles in animation and character rendering. Both also have fairly simple plots that don't require a lot of thinking to get into. The main difference is that, while Freedom's sci-fi elements are largely grounded in reality, Expelled from Paradise goes full-on sci-fi, complete with mech battles and sentient AIs. 

The main characters share the same personality traits with the twists. They both are based on space travel and a huge manmade spacecraft.  

Many similarity, such as bikes and colonization in space etc, but Megazone 23 have more mature content. I also think the plot have something in common and it was pretty enjoyable to watch them both. 

Takeru (Freedom) and David (Cyberpunk) are street punks living in dystopian cities that decided to fight against the system in their own way. For Takeru, this means fighting to take down the system that control society. For David, this means living on the edge in a bid to be independent. Cyberpunk: Edgerunners and Freedom are must watch series for anyone interested in sci-fi anime.  

If you lived in an Orwellian society, how would you react to the truth? Always knowing the truth, Kaburagi (Deca-Dence) had never questioned his role in this society until an encounter with a plucky girl makes him want to change things. Never knowing the truth, Takeru (Freedom) is ready to challenge society when he discover the truth in order to meet a girl. Freedom has a more simple plot whereas Deca-Dence combines various sci-fi concepts into its plot. You are sure to enjoy them! 

Both have similar CG, and both deal with the idea of a utopia.  

Both are set in not-so-deep space (Earth's atmosphere and the Moon, respectively) and feature similar CG/Cel-shaded animation.  

Space anime is well known for military conflicts, but sometimes you want a space anime that explores other subjects. Takeru (Freedom) is a street punk with a heart of gold that discover that his lunar home is an Orwellian society and decides to challenge the system to meet a girl. Mutta (Space Brothers) had all but given up on his dream of being an astronaut until he is given the opportunity to pursue it once again. Of course, the plotlines are very different and cover different genres, but both series are quality, realistic science fiction anime. Space lovers need to add these titles to their completed list.  read more 

Both animes gives a same feeling as they both contain hope, surviving and luck etc. There are also similar events in the plot. I think you will like them both, however Planet Survive have cartoon style of graphics and more of the sci-fi genre which can may make it less good. 

People living on the moon because the Earth has become uninhabitable and a relationship between a boy from Earth and a girl from the moon. The moon is ruled by a totalitarian government that restricts information and individual freedom.