FASTCUE · GET TO KNOW YOUR OWN PATTERNS
Simple fasting. A clearer view of you.
Track fasting time, measured weight, and how you felt, for free. Discover patterns in your records with Pro.
No signup · Free core tracking · Optional Pro

Choose a quick target or set your own duration. See elapsed time and your current goal together while a fast is running.
Now available on iOS and Android
Start with today's record.
Find FastCue on the App Store and Google Play.
iPhone
Download on the App StoreFREE · USE IT FROM DAY ONE
Start with one record. Today's is enough.
You do not need a grand plan. Time a fast, keep how you felt when it ended, and revisit the days you recorded. All for free.
Start on your terms
Choose a quick target or set your own, then follow your progress on the timer.
See the app screenKeep how it ended
Record hunger, energy, and tags. Add measured weight only when you want to.
See the app screenRevisit your days
Review your calendar and history. Weight goals and basic trends are free too.
See the app screenEXPLORE THE FEATURES
Less guessing. More of the actual app.
Pick what interests you. Explore what is free and what Pro adds through real app screens with example records.
Free tracking
One timer. A simple place to start.
Choose a quick target or set your own duration. See elapsed time and your current goal together while a fast is running.
How to use it in the app
- Start a fast from Today
- Choose a goal and check progress
- Finish with a check-in
Core fasting records are free. Home widgets are included too.
How to start for free
Example records
Four questions Pro helps you explore
You have the records. What should you look for?
Compare two periods side by side
See fasting time, frequency and weight together in one view.
Explore this InsightSee patterns behind your tags
Fasting time, goal attainment and weight together for each tag.
Explore this InsightHow did measured weight move?
Separate change, plateau, and recovery using values you entered.
Explore this InsightWhat can I recheck next week?
Get one comparison to try when enough history is available.
Explore this Insight
Example records
Insights with visible evidence
See only what your records can support.
FastCue does not manufacture a conclusion when history is limited.
- Record counts and comparison periods
- Included, excluded, and readiness states
- Recent eight-week flow and direct two-week comparisons
Pro management tools
Your controls stay visible as records accumulate.
Tag usage overview
Compare all-time and last-30-day usage with bars and counts, then search, categorize, merge, or hide tags.
See the real toolSix notification types
Follow times you set and the active fast's current goal, subject to OS settings.
See the real toolJSON transfer
Export a readable, unencrypted file yourself or validate one before import.
See the real toolFree and Pro
Track with Free. Compare personal patterns with Pro.
Build the records you need for free, then choose Pro when deeper comparison helps.
Start with your own records
- Fasting timer, end check-ins, and tag creation
- Manual weight, goals, and basic trends
- History, monthly heatmap, and home widgets
Go deeper into your records
Everything in Free, plus
- Insights from eligible personal records
- Advanced tag management
- Six notification types and supported enhanced core alerts
- JSON export and import
Check current pricing and trial eligibility in the app.
Trust and safety principles
Your records. Your perspective.
Start without creating an account. Core recording and goal tracking are free.
Missing information stays unknown. Record counts and comparison conditions help you judge what you see.
FastCue provides tracking and information only, not medical diagnosis, treatment, or advice.
Frequently asked questions
Know what FastCue does before you begin.
Do I need to create an account?
No. In the current release, FastCue works without signup and keeps your fasting, weight, tag, and settings records on this device. The Privacy Policy explains diagnostics, subscriptions, exports, and support data.
How are Insights created?
Free Insights is a fixed sample kept separate from your records. Pro compares eligible personal records and shows available early summaries, evidence counts, and progress when history is limited instead of manufacturing a conclusion.
Does FastCue import weight automatically?
The first-release scope asks you to enter the morning fasted weight you measured, then review its broader trend alongside your own goal.
Can I move or restore my records?
Pro can export readable JSON through the system share sheet and import it again. Restore replaces current local data, so review the warning and keep any needed export first.
Does FastCue provide health advice?
No. FastCue is for tracking and information only. Consult a qualified health professional about whether fasting or a weight-management plan is appropriate for you.
Will notifications always arrive at the exact time?
Notification permission and device settings are required. Timed notifications may arrive late on Android when exact alarms are not allowed. Progress on iPhone depends on Live Activity support in iOS 16.1 or later and device settings. Notifications do not start or end a fast automatically.
Now available on iOS and Android
Start with today's record.
Find FastCue on the App Store and Google Play.
Check current pricing and trial eligibility in the app.




