Build your next 90 days.
One goal. A few daily reps. A calm system that shows you exactly where your effort goes, so a bad day never turns into a quit.
How it works
Motivation fades. Systems don't.
Arc90 turns one goal into a daily rhythm you can read at a glance. Three minutes a day is enough.
1. Pick one 90-day goal
Name what you're building. Link it to a bigger "why" and to the four areas of your life.
2. Choose a few daily reps
Small habits with a minimum version for hard days. Tasks sit right next to them.
3. Watch the arc fill
Check in morning and night. See momentum build, spot slips early, and recover fast.
Inside the app
Everything in one arc.
Life balance
See where your effort really goes.
Every habit feeds one of four life areas. The radar glows where you're strong and shows the gaps before they grow.
- Mind, Health, Career and Money in one shape
- Compare this week with the last one
- Tap an area to see the habits behind it
Purpose Blueprint
Every rep connects to a goal.
Long-term vision, 90-day goal, this week's habits and tasks: one blueprint that shows what each small action is building.
- Rings show how well each goal is fed
- Habit chips with a 7-day trace and streak
- Tick tasks off right from the goal
Phases
90 days. Six phases. One arc.
From Spark to Mastery, six phases of fifteen days that follow how a new habit settles in. Each day lights up as you keep your reps, and you always know where "now" is.
- Fifteen days per phase, every day tappable
- Today rides the arc as you go
- Best runs and kept days, never a guilt trip
Tasks
Type it the way you think it.
Dates, times, lists and repeats are understood as you type, in English or Spanish. Your tasks show up inside Today, next to your habits.
- "tomorrow 6pm", "every monday", "#school"
- Star your top three for the day
- Undo anything with one tap
Example: typing "Call mom tomorrow 6pm #personal" creates a task due tomorrow at 6 PM in the Personal list.
Check-ins
Start the day clear. Close it kind.
A 30-second morning check-in sets your focus. A night check-in logs what you kept, one win, and plans tomorrow.
- Sleep, energy and mood in a few taps
- Pick today's top three
- Your night notes become the journal
Good morning, Alex
Close the day
Private by design
Your habits are yours.
Local-first
Core tracking lives on your device. No account needed to start.
You choose what's shared
Optional sign-in, AI and email updates only send what those features need. Analytics stays off until you allow it.
Export anytime
Download a full backup of your data whenever you want. It's yours to keep.
Pricing
Start free. Upgrade when you want the full system.
Track locally for free. Check the app and checkout for current Premium availability and billing details.
- Your 90-day arc, Today gauge and Momentum
- Up to 8 active habits, plus Tasks
- Morning and night check-ins
- Local-first, private, works offline
- Everything in Free, unlimited habits
- Full personal patterns and history
- Forge Mode 7-day recovery plans
- Protocols for supplements and training
- Sleep lab and Focus, free for everyone for now
App Store
Coming to the App Store. Use it today.
Arc90 already works on your iPhone: open it in Safari, tap Share, then Add to Home Screen. Leave your email and we'll tell you the day it lands on the App Store.
Put it on my Home ScreenFAQ
Good to know
Do I need an account?
Basic tracking works locally without an account. Optional email sign-in supports connected features such as AI and purchase restoration.
What leaves my device?
Core tracking records are local. Optional sign-in, AI, email updates, payments, and reminders send the information needed for those features. Website analytics runs only if you allow it. See the Privacy Policy for details.
Is this medical or dosing advice?
No. Arc90 tracks routines, habits, and notes only. It never recommends doses or treatment. Always follow a licensed healthcare professional.
How do I handle billing?
Review the price and renewal terms before checkout. Contact michael28gh@gmail.com for web cancellation or refund requests. Deleting app data does not cancel a subscription. See Terms.
How do I get it on my iPhone?
Open arc90.vercel.app/app in Safari, tap the Share button (the square with the arrow), then "Add to Home Screen". Arc90 opens full screen from your Home Screen like any app and works offline. Show me the steps. The App Store version is coming; leave your email above and we'll tell you.
Your next 90 days start today.
One goal. A few daily reps. A system that keeps you going.
Start my 90 days