Yoi Bonsai

Yoi Bonsai is the all-in-one companion for serious and casual bonsai growers. Keep a private journal of every tree: photos through the seasons, repotting and pruning notes, reminders for the work ahead, albums to show off your best work, and AI summaries of years of entries.

Free to download. Track up to 10 trees, browse the Ichiba marketplace, and message sellers about trees you'd like to add to your collection — no subscription required.

Upgrade to Premium for unlimited trees, AI features, the full marketplace experience, and sharing tools you'll actually use.

WHAT YOU CAN DO

Track your trees
• Each tree: its photo, what needs doing, then a journal of notes and photos by day — as a timeline or a photo grid
• Add a note, a photo, or both in one tap; back-date and edit a whole day at once
• Tree info keeps species, size, pot, age and repotting date on one page
• Home shows what is due next, with a big two-column gallery below

Albums
• Collect photos from any of your trees — a club show, one tree's progression, your favourites
• Reorder, choose a cover, add photos straight from a tree's journal
• Present full screen with the tree's name and size on every photo
• All trees builds itself from your cover photos

Reminders that respect how bonsai actually works
• One simple list grouped by month, overdue first; tick things off with undo
• Recurring monthly reminders for the work you do every year (repot, fertilize, wire-off, defoliate)
• Single-tree or multi-tree reminders — fertilize the whole back bench in one tap
• Completing a reminder writes a journal entry on each tree, so your history stays in sync

AI-powered summaries (Premium)
• A clean, readable summary of any tree's history from its journal — perfect for remembering what you did three years ago

Ichiba marketplace
• Browse trees for sale from other growers
• Message sellers directly to ask questions before buying
• Premium subscribers can list their own trees, including AI-assisted listing copy
• Tree transfers move ownership cleanly with full history intact

Sharing and collaboration (Premium)
• Share trees with another grower — read-only or full edit access
• Transfer trees permanently when you sell, gift, or downsize
• Built for instructor / student workflows on the same trees

Privacy first
• Your trees, photos, and notes are yours alone unless you choose to share
• No ads, no tracking pixels, no selling your data — ever
• Sign out wipes the device; delete your account and we anonymize the record

PLANS

Free
• 10 trees
• Photos, journal, reminders
• Albums
• Browse Ichiba and message sellers
• Buy trees from other growers

Premium (monthly or annual)
• Unlimited trees
• AI tree summaries and listing copy
• List trees for sale on Ichiba
• Share and transfer trees with other growers
• Direct messaging beyond the marketplace

If Premium expires, everything stays. After a 7-day grace period the first 10 trees you created remain editable and the rest become read-only until you renew or trim back.

WHO BUILDS THIS

Yoi Bonsai is built and maintained by Lonnie Bowling — a working bonsai enthusiast. It is run as a service to the bonsai community, not a profit-maximizing business: the best possible platform, a reasonable subscription to develop and maintain it, and a contribution to the hobby and the art. These choices are deliberate:

• Ichiba charges zero fees. Sellers keep 100% of the sale.
• Subscription fee held or lowered as the goal — never raised just to chase profit.
• No ads. No tracking pixels. No selling your data — ever.
• One-tap export of every tree, log entry, and reminder, plus bulk photos at original quality.
• Real questions reach a real person. 3–5 business days, often faster.
• If the app is ever discontinued, you get 90 days notice and a final export.

Cancel anytime through your App Store subscriptions. Auto-renews unless cancelled.

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Terms of Use (EULA): https://yoibonsai.com/terms
Privacy Policy: https://yoibonsai.com/privacy