Matryoshka Mind Map & To-Do

A mind map designed for digging deep into ideas rather than spreading them out. Standard mind maps get cluttered as they grow. Matryoshka Mind Map nests child items inside their parents and lets you drill down one level at a time with a tap. When you want the big picture, switch to a classic mind map with branches spreading from the center. Use it for brainstorming, nested notes and breaking down to-dos — on your phone, tablet and the web. ■ Two ways to see your map ・Matryoshka view — child items are drawn inside their parent card. Tap to zoom in one level deeper; go back and it shrinks back into place. However deep you go, you always know where you are ・Mind map view — see the whole map with branches spreading left and right from the center. You can add, edit and delete items here too ■ Reshape the hierarchy with your finger ・Tap — drill into that item ・Swipe right — make it a child of the item above (demote) ・Swipe left — move it up to the parent level (promote) ・Drag — reorder within the same level ・Double-tap — edit the text ・Swipe right from the screen edge — go back one level ■ Spin off or merge branches Swipe a top-level item left to turn it, with everything inside it, into a new standalone map. You can also merge maps back together into one. Split off a note once it has grown too big, or bundle related notes together — the structure can always be reorganized later. ■ Related maps ・Relate an item to other maps. Tap a related map on the card to open it ・On a related map, see which items it is related to ・The relation graph shows how all your maps connect, at a glance ■ A nested to-do list, too ・Choose "TODO" when creating a map and every item gets a checkbox ・Checking a parent marks everything inside it as done ・Add due dates and start dates. Overdue and due-today items are highlighted, and items not yet started are dimmed ・Get a reminder before a due date. Tap it to open that item's map ■ On your phone and on the web Sign in with the same account to read and edit the same maps on your phone, tablet and the web (matryoshkamap.web.app). Use your phone on the go and your computer at your desk. Start anonymously with no sign-up, and link an email address, Google or Apple account later. ■ Connect directly with AI agents We've released a free companion tool that lets MCP-compatible AI agents like Claude Desktop and Claude Code read and write your maps directly. Just say "organize what we talked about into a map" or "I finished that task," and it's reflected in your map. ■ Share & export ・Edit the same map together with other users just by entering their email address ・Publish a read-only view to anyone with the link ・Copy or share as indented text, or as Markdown with checkboxes and due dates ・Paste a Markdown list to import it as a new map ・URLs in items automatically become tappable links ■ Free and Premium The free plan includes up to 20 maps with 300 items each (with banner ads). Premium (first month free) gives you: ・No ads ・Unlimited maps and items ・Images in your maps (up to 1 GB in total) Premium is purchased in the mobile app and also applies on the web when you sign in with the same account. ■ And more ・Search map names and items together ・Adjust how deep the nesting appears with the scale slider ・Japanese and English (follows your device language) ・Dark mode Use it as a place to keep the nested structure inside your head, exactly as it is. ■ About subscriptions ・Payment is charged to your Apple ID at confirmation of purchase ・After the free trial and each period, the subscription renews automatically unless cancelled at least 24 hours before the end of the current period ・You can manage or cancel auto-renewal at any time in your App Store account settings Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://info.spheres.jp/privacy/