Whether you're a creative writer or a tabletop roleplayer, it's useful to keep all your ideas in one place. World-building apps let you organize your ideas and inspire details. They're a must for any creative person.

Here are the top six world-building apps for your Android phone.

1. Pocket Campaigns

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Pocket Campaigns deck view
A list of cards for a sci-fi world in Pocket Campaigns
A simple card in Pocket Campaigns

Pocket Campaigns is useful for both roleplayers and writers, despite its name. You create each world as a "deck" of cards. Each idea is a single card in your deck, and you can link those cards to each other within a deck.

The app provides basic templates and character generators. You can also make your own generators by editing a copy of the basic file. The app is very flexible, so you can make it as detailed or basic as you like.

Download: Pocket Campaigns (Free)

2. World Scribe

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A completed entry in World Scribe, showing multiple detail categories
The simple Add Entry screen in World Scribe
An entry's edit screen in World Scribe, showing templates

World Scribe uses templates to help guide your ideas from general concepts into concrete world elements. Adding an entry is quick: just name it and select a general content type. After that, you can fill in details as they come to you.

The app lets you cross-reference related ideas. And if you haven't added the thing you want to link yet, you can add a quick version as a placeholder and fill in details later.

Download: World Scribe (Free)

3. Quest Tracker---Campaign Notes

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An index of ideas in Quest Tracker
The Add Entry screen in Quest Tracker
A completed entry with Associations in Quest Tracker

Quest Tracker is super-streamlined world-building apps. It offers three fields for every item: Name, Short Description, and Long Description. The Short description appears under the name in your index. Quest Tracker doesn't support images, but you can add emojis to item names to help illustrate them.

When you edit an item, you choose Associations. This creates a cross-reference. The app also lets you export your collection, so you can share it easily.

Download: Quest Tracker---Campaign Notes (Free)

4. Writer's Companion

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A view of created categories in Writer's Companion
A completed entry for a town in Writer's Companion
A menu showing expanded options in Writer's Companion

Writer's Companion is a great app for creative writers. It lets you customize your entries and organization. You can create categories with colors and icons, and add custom data fields within each entry.

You can set writing goals to make sure your projects don't gather dust. It also offers daily writing tips and inspirations, as well as custom templates. Writer's Companion is much more than an idea binder, it also builds your writing skills.

Download: Writer's Companion (Free, in-app purchases available)

5. Game Master Journal

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The default categories menu in Game Master Journal
The Add Location screen in Game Master Journal
An NPC entry in Game Master Journal

Game Master Journal starts with five categories for your ideas. You can't add more, but you can rename them. The defaults cover the basic needs for a campaign setting, but you could rename the first four to "Plot," "Characters," "Locations," and "Organizations" to make it work better for novels.

Related: The Best Apps for Running Dungeons & Dragons From Your Phone

Within a category, you can filter the entries by various factors. Each category comes with a template to make sure you enter the important information. You can also edit the templates or add new ones.

Download: Game Master Journal (Free)

6. Character Story Planner 2

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Projects View in Character Story Planner
One of the category lists in Character Story Planner
An example of a Character Template in Character Story Planner

This world-building app lets you create a high level of detail in your world. You can add anything from items to nations. Each content type uses its own template, and you can also customize your own new templates.

Despite all the detail, the app is very clean and easy to use. Each entry contains different tabs to organize the specifics. If you want smaller entries, you can use a custom template.

Download: Character Story Planner 2 (Free)

Keep Your World in Your Pocket

By using a world-building app, you can create a well-organized record of your ideas and get prompts to fire your imagination even more. These apps help you stay consistent and active in creating your own worlds.

Grab a world-building app to start exercising your creative muscles!