Day 1 to 3
Critical
Your body reacts to nicotine withdrawal. Cravings are at their strongest. That is normal, and it passes.
Quit smoking with a plan
Finally see when it gets easier.
Most apps only count days. SmokeCurve's difficulty curve shows you which phase of nicotine withdrawal you are in and when the hardest part is behind you.
🔒 Your data stays on your device
📚 Milestones with medical sources
Why day 3 is so hard
Withdrawal has four phases. You see exactly which one you are in.
Critical
Hard
Transition
Stable
Day 4 to 14
Hard
The physical withdrawal fades, but your mind keeps fighting. Seeing your progress helps a lot here.
Week 2 to 4
Transition
Old habits break apart, new ones form. Cravings now come from situations more than from your body.
From month 2
Stable
Your brain has adapted. The worst is behind you. You can do this.
What the app gives you
Everything that gets you through the hard days.
📈
Smoke-Free Timer
Your smoke-free time in real time, second by second.
💰
Money Saved
Calculated daily, in your currency, for cigarettes, tobacco, and vapes. With a savings goal.
❤️
Health Milestones
What happens inside your body, from 20 minutes to a full year, with medical sources.
🧫
Instant Craving Help
One tap: a breathing exercise and distraction until the craving passes.
🔥
Spot Your Triggers
See what sets off your cravings and find your patterns.
📊
Detailed Stats
Streak, personal best, projections, and lifetime regained.
🏆
Achievements & Widget
A badge for every milestone and a home screen widget in light and dark.
🌙
Dark Mode
Your companion, day and night. Easy on the eyes.
☁️
iCloud Backup
Your progress, safely backed up and restored on any device.
A look inside the app
Warm, honest, and never preachy.
No judgment. No pressure. No tracking.
Everything you enter stays locally on your device. No account, no sharing. Starting over does not mean failing: your personal best stays saved.
Download on the App Store Get it on Google PlayFrequently asked questions
What people want to know.
Why is day 3 so hard when you quit smoking?
In the first three days your body reacts most strongly to nicotine withdrawal, and cravings hit their peak. SmokeCurve's difficulty curve shows you exactly this phase, so you know: it is normal, and it gets easier soon.
How long does nicotine withdrawal last?
The strongest physical withdrawal happens between day 1 and day 3, then it fades noticeably. Between weeks 2 and 4, cravings are triggered mostly by habits and situations. From the second month on, your brain has largely adapted.
What makes SmokeCurve different from other quit smoking apps?
Most apps only count days. SmokeCurve answers the question that really matters: where am I right now, and when does it get easier? On top of that come instant craving help, milestones with medical sources, and honest statistics.
Does my data stay private?
Yes. Everything you enter stays locally on your device, optionally with an iCloud backup in your personal iCloud. There is no account and no tracking. You can find the details in the app privacy policy.
How much does SmokeCurve cost?
The app is free to download. SmokeCurve Premium unlocks all features, as a monthly or yearly subscription with 7 days free or as a one-time purchase. The App Store shows the prices before you buy.