Smart vs Valuday

技術の概要 土壌の養分濃度に応じて発色する試験紙“みどりくん®”と色を読み取る機器“Pico”を組み合わせた土壌分析に利用するアプリです。 みどりくんⓇとは 東京農業大学によって開発された、簡易土壌診断試キットです。 土壌に精製水を加え、振とうした懸濁液に、試験紙を直接浸すと土壌養分の濃度に応じて呈色します。 Pico（簡易測色計）とは 親指サイズ（18×15×60mm / 16g）の測色計です。 実物から色を読み取り、iOS版のスマートフォン端末にインストールした専用のアプリにBluetooth 接続で情報を転送し、あらかじめ登録した色見本帳と照合することができます。

Was it worth the price? Valuday tracks the cost per day and cost per use of the things you own, and helps you pause before buying something new. Understand what you already own • Track long-term possessions by day, or log individual uses of shoes, cameras, classes and more. • Record when an item is idle, sold, given away, discarded, expired or retired. Sale proceeds reduce its net cost. • Add goals, notes and past usage records to see how value changes with use. Think before you buy Open the calculator in Settings, enter a price and your expected days or uses, and estimate the unit cost. Set an optional monthly spending allowance as a personal reference. Put uncertain purchases on the cooling-off list and decide after a waiting period. Your language, your currency Nine languages, regional number and date formats, and a choice of currencies. Records and totals stay separate by currency. Amounts are not automatically converted. Optional Pro features Item photos, custom widgets, CSV export, cost trends and item comparisons. Monthly and yearly subscriptions renew automatically; a lifetime purchase is also available. Manage or cancel subscriptions in your Apple account settings. Privacy matters No app account required. Records are stored on your device and use your private CloudKit database when iCloud is available. Photos remain on the device. No third-party ads, usage analytics or session replay. Privacy policy: https://www.real-tech.online/zhi-value-privacy.txt Terms of Use: https://www.real-tech.online/zhi-value-terms.txt