Mottai tracks when everything at home expires and how much you have left — so food, groceries and cosmetics never go bad forgotten.
■ Scan to log in seconds (free)
Scan a barcode to fill in the name, then add expiry date, opened date, quantity, location and purchase source. You can also let the camera read the name and expiry date for you — on-device.
■ Scan to check stock (free)
Scan a barcode in the store to see how many you already have — across your items and every shared group — so you never double-buy. No match? Add it, or from Control Center.
■ Shopping list (free)
Keep a list solo or shared with family. Add items by hand or from low-stock and running-low suggestions; check one off to log it straight into stock.
■ Reminders before it expires
Multi-stage reminders (same day, 3 days, 7 days before…) at your chosen time. Each category can set a default timing, applied to new items.
■ Running-low reminders (Full Version)
Mottai learns from recent usage to estimate how many days each item lasts and reminds you to restock before you run out — with an "about N days left" tag. Shared members get these too.
■ Track items unit by unit (batches)
Buy the same item in separate lots with different expiry dates — each unit is tracked and used up on its own, with its own price and source.
■ Review tab: history & stats (free)
A "Review" tab unites history and stats: a timeline of what you used or discarded, when and how much — personal and shared — then overviews, categories and expiry views.
■ Spending insights (Full Version)
Add price and capacity to see inventory value, monthly spending, wasted money, and a price-per-unit ranking, per space (personal or shared).
■ Custom categories & widgets (Full Version)
Two-level categories with custom icons and colors, plus Home and Lock Screen expiry widgets.
■ Wallet
Keep your Taiwan e-invoice carrier and loyalty cards in Mottai: swipe to switch, tap to enlarge (auto-brightening), scan to add, customize cover/color. The carrier widget is free; the card widget is Full Version.
■ Family Sharing with real-time alerts (Cloud plan)
Subscribe to the Cloud plan to share one inventory — invited family join free. Everyone gets a real-time alert when a member adds, uses up or restocks an item, shown with their nickname; owners can reset the invite link and manage members.
■ Dark Mode
Light, Dark, or Follow System.
Plans
• Free: up to 20 items, including barcode scanning, scan-to-check-stock, shopping list, review history and expiry reminders.
• Full Version (one-time purchase, best for solo use): unlimited items, running-low reminders, spending insights, custom categories, expiry widgets and the membership-card widget.
• Cloud plan (subscription, free first month): everything in the Full Version, plus Family Sharing with real-time alerts — the owner subscribes, invited family join free.
Privacy: item records sync in your own iCloud. Family Sharing alerts go via Firebase (device push token + nickname only, never item contents). Crashlytics is used for crash diagnostics; no ads or tracking.
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Subscription details
Mottai Cloud (Family Sharing)
• Price: NT$60 / month (approx. US$1.99), an auto-renewable subscription
• Free trial: the first month is free; after the trial it auto-renews at NT$60 / month, cancel anytime.
• What you get: shared groups with real-time notifications on member changes; invited family join free.
• The Full Version is a one-time purchase, not a subscription.
Payment is charged to your Apple ID account at confirmation of purchase. After any free trial, the subscription auto-renews unless turned off at least 24 hours before the end of the current period, and your account is charged for renewal within that 24-hour window. Manage or turn off auto-renewal in your App Store account settings after purchase.
Privacy Policy: https://seanseanyin.github.io/mottai-site/privacy-policy.html
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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