芬尼健康家 vs Cost Notebook

芬尼健康家专注于全屋舒适家居产品的研发与制造。将强大的人工智能技术落地到居家智能应用领域，让全球一亿家庭享受智能、舒适、节能的家居生活，是芬尼的愿景。 芬尼健康家APP可以通过授权的方式，让您家里多位家庭成员共同管理家里的芬尼产品。并且芬尼健康家APP也支持多住宅的管理方式，一个APP就可以管理多个住宅的所有芬尼设备。

Cost notebook helps you track the real cost of what you own, not just the purchase price. Record when you bought an item, when you stopped using it, and (optionally) resale value. The app automatically calculates total cost, daily cost, and value retention so you can clearly see long-term spending efficiency. Key Features Item lifecycle tracking Save purchase date, deactivation date, and optional resale price for each item. Automatic cost analysis Instantly compute net cost, daily cost, annualized retention, and base retention. List insights View total holding cost and average daily cost across your records. Search, sort, and star Quickly find records, sort by different metrics, and mark important items. CSV import/export Import is always free. Export can be unlocked via in-app purchase. Core functions available offline; unlocking CSV export requires online purchase via the App Store. Private by design Your data stays on your device. No account required. No cloud sync. Cost notebook is built for people who want cleaner spending decisions, better ownership visibility, and simple long-term cost tracking.