Symptom hub
Nicotine withdrawal symptoms
Withdrawal feels chaotic until you name it. Use this hub to match what you feel with a guide, then anchor behavior with a tracker.
Quitting right now? Blou for iPhone shows your own recovery, day by day.Common symptoms (jump links)
Frequently asked questions
How long do withdrawal symptoms last?
For many people the roughest stretch is the first 1–2 weeks, with gradual improvement over 2–4 weeks. Individual symptoms vary—use our timeline and symptom guides for ranges.
When are symptoms not “just withdrawal”?
Seek urgent care for crushing chest pain, severe shortness of breath, neurologic deficits, or thoughts of self-harm. When unsure, call emergency services.
Will an app reduce symptoms?
No—but it can reduce panic and inconsistency by giving you a practiced craving response and links to the right guide when a symptom spikes.
Should I use NRT?
Many people should at least discuss NRT or prescriptions with a clinician or pharmacist. This page is education, not personalized medical advice.
Blou for iPhone
See your own recovery, not an average
Guides tell you what usually happens. Blou shows what is happening to you, from your first smoke-free day.
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.