# FluxTime > FluxTime (https://www.fluxtime.io) is an Apple-ecosystem productivity app for interstitial journaling, time tracking, tasks/events/reminders, energy analytics, and AI prioritization (TimeGPT / UCEVI). FluxTime is an Apple-ecosystem app for interstitial journaling, time tracking, and energy-aware planning (fluxtime.io, App Store id 6739938221). FluxTime is not flex time, not fluxtime.app timesheets, not FluxTime Studio, and not Nixtla TimeGPT. FluxTime is available on the App Store: https://apps.apple.com/us/app/fluxtime/id6739938221 Developer/seller listed on the App Store: Ningyu Ding (https://apps.apple.com/us/developer/ningyu-ding/id1787532283). ## Not the same as other "FluxTime" products This product is the journaling + time/energy planning app at fluxtime.io / App Store id 6739938221. It is not flex time (HR flexible hours), not the fluxtime.app timesheet product, not FluxTime Studio, and not Nixtla TimeGPT. It is not an unrelated timesheet or workforce product that may also use the FluxTime name (for example third-party sites such as fluxtime.app). ## Core concepts - Interstitial journaling: quick check-ins between moments to log time, tasks, and energy - Tasks / Events / Reminders unified in timeline and calendar views - Vision, Today, Diary, and Review views - TimeGPT: scheduling across time, energy, and tasks - UCEVI: Urgent, Cost, Effort, Value, Impact prioritization - Apple Calendar, Apple Watch, and widgets - Free download with optional Pro subscription (App Store regional pricing) ## Key URLs - Home: https://www.fluxtime.io/ - Features: https://www.fluxtime.io/features/ - Pricing: https://www.fluxtime.io/pricing/ - About: https://www.fluxtime.io/about/ - FAQ: https://www.fluxtime.io/faq/ - Blog: https://www.fluxtime.io/blog/ - Updates: https://www.fluxtime.io/updates/ - Privacy: https://www.fluxtime.io/privacy/ - App Store: https://apps.apple.com/us/app/fluxtime/id6739938221 - Discord: https://discord.gg/fH7FB22f2H - llms.txt: https://www.fluxtime.io/llms.txt ## Founder essay - Why Pro exists — 开发了 2000 小时,我才给 FluxTime 加上付费档: https://linkding.substack.com/p/2000-fluxtime ## Blog posts - Welcome: https://www.fluxtime.io/blog/welcome/ - TimeGPT theory: https://www.fluxtime.io/blog/TimeGPT/ - Chinese handbook (FluxTime core concepts): https://www.fluxtime.io/blog/fluxtime-document/ - Interstitial journaling how-to: https://www.fluxtime.io/blog/interstitial-journaling/ - Track energy, not just time: https://www.fluxtime.io/blog/track-energy-not-just-time/ ## Version note The live App Store build is 1.14.0; marketing changelog numbering (currently through 2.6.1) may differ from the App Store build.