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I reviewed Thinking Space when it first came out on Android. It's a neat application through which you can build a "mind map" — capturing an idea, concept, meeting or brainstorming session in a mixture of text, word balloons and arrows connecting them. This update re-works the user interface to make the application easier and faster to use.
Now, side and bottom panels on your screen help you navigate through building your map. With a couple of taps, you can add nodes, enter text to describe them, and link them to other nodes on your map. Customizing features let you change the colors of everything and bend the arrows to different shapes. All of these creation elements have been greatly improved in the new UI, and are easier to understand than in the original version.
Mind map beginners can step through the help documentation, which, as before, is built using the tool itself — a diagram of nodes and text that explains all the features. Or, you can browse the sample mind map about a holiday shopping and to-do list.
The app comes in two versions — a free one, which contains all the features I describe above, and a premium version that adds the ability to add document attachments to nodes and hyperlink to other documents, and also removes the ads.
If you have to collaborate with others who use different mapping tools, you'll like that Thinking Space can export to the formats of several other such tools.
My only complaint is that the maps can be challenging to create and manipulate on a small screen, but would be a perfect match for an Android tablet.