Quit smoking app for iPhone
See your body heal after your last cigarette.
Blou tracks every smoke-free day, shows how your lungs and face change, and helps the second a craving hits.
On a computer? Scan with your iPhone camera to open Blou in the App Store.
iPhone · Free trial, then a subscription. Cancel anytime in the App Store.
Proof you're healing, not just a counter
Most quit apps count days and money from averages. Blou shows your own change.
Photo timeline
See your face change over time in one photo timeline.
Lung checks
Simple breath checks that show your lungs getting stronger.
SOS craving help
Instant help the second a craving hits.
Every milestone visualized
Watch your whole journey unfold on one visual timeline.
How it works
- 1
Start your free trial
Install Blou on your iPhone and start the trial. Cancel anytime in the App Store before it renews.
- 2
Check in as you go
Add a photo and a quick breath check, so your progress is something you can see.
- 3
Watch yourself heal
Your timeline fills in day by day. When a craving hits, tap SOS.
Free guides for every stage
What's happening in your body, day by day, based on NHS, CDC, and WHO public guidance.
Free tool
Quit smoking timeline
Enter your quit date and see what your body is doing right now.
Free tool
Pack-year calculator
Your smoking history in pack-years, plus a lung screening check.
Nicotine pouches
Quitting Zyn and pouches
Taper plans, withdrawal timeline, and a pouch calculator.
Free tool
Money saved calculator
What your habit costs, and what quitting gives back.
Free tool
Lung recovery timeline
What typically improves, and when, with sources.
By US state
Free quitlines and patches
Your state's free quit help, cigarette tax, and costs.
Frequently asked questions
Is Blou free?
Blou is a subscription app with a free trial. Start the trial in the App Store, and cancel anytime in your Apple ID subscriptions before it renews. The guides, timelines, and calculators on this website are free to use.
What does Blou do that a day counter doesn't?
A counter shows a number. Blou shows evidence: a photo timeline of your face, breath checks that track your lungs, SOS help when a craving hits, and every milestone on one visual timeline.
Where should I start if I want to quit smoking?
Start with the step-by-step plan at how to quit smoking, set a quit date within the next 7–14 days, and line up one form of evidence-based support (NRT, varenicline, bupropion, or free quitline coaching).
How long do nicotine cravings last?
Each individual craving typically lasts 3–5 minutes. Physical nicotine withdrawal peaks on days 2–3 and fades over 2–4 weeks. Cue-based urges can appear for months but become much less frequent.
Is Blou available on Android?
Not yet. Blou is iPhone-only today. The guides, timelines, and calculators on this website work on any device.
Is this website medical advice?
No. Blou content is for general education and motivation. It does not replace advice from a qualified clinician. If you have a medical condition or take prescription medication, talk to your clinician when making changes.
Blou for iPhone
Your quit, with proof
See every smoke-free day add up: your photo timeline, your lung checks, and help the moment a craving hits.
Photo timeline
See your face change over time in one photo timeline.
Lung checks
Simple breath checks that show your lungs getting stronger.
SOS craving help
Instant help the second a craving hits.
Every milestone visualized
Watch your whole journey unfold on one visual timeline.
On a computer? Scan with your iPhone camera to open Blou in the App Store.
iPhone · Free trial, then a subscription. Cancel anytime in the App Store.
Android
Blou is iPhone-only for now
There is no Android version yet. Everything on this website works on any phone: the quit plan, the symptom and milestone guides, and the money calculator.