Ten a day, at what a pack costs now, is a little over three thousand pounds a year.

Not a fortune spread over twelve months, maybe. But sat in one number it's a holiday, or a decent chunk off a car, or the whole of my 1-2-1 training for a year with change left over. When my client saw it written down he went quiet for a bit. That reaction is the reason I built the thing.

So this is a straight guide: what the NHS says actually happens when you stop, what the money really adds up to, why the way most apps handle a slip-up is backwards, and what I ended up putting in my own app. No lectures. If you smoke, you already know it's not doing you any favours — you don't need me piling on.

First, the money

This is the bit I can help with straight away, because it's just arithmetic and it's yours.

A pack of 20 averaged about £16.50 in the UK the last time it was properly measured, and duty went up again in November 2025 with another rise scheduled for October 2026. Roughly three quarters of that price is tax. The average UK smoker gets through a little over 10 a day. Find your row:

What the NHS says happens when you stop

I'm not going to paraphrase this or dress it up, because it isn't my expertise and it doesn't need embellishing. This is the NHS's own timeline, from their Better Health stop-smoking pages:

From my side of the fence, the ones clients actually notice are 72 hours and the two-to-twelve-week window. Breathing easier and better circulation show up in a training session long before they show up anywhere else. People who stop smoking start finishing sets they used to bail out of. I've watched it happen more than once.

The number that matters most: 28 days

Make 28 days, and you're five times more likely to quit for good.

That's the NHS's own figure, and it's why their free Quit Smoking app is built as a 28-day programme rather than an open-ended slog. Four weeks isn't the finish line. It's the point where the odds flip in your favour.

Twenty-eight days is a target you can actually hold in your head. It has an end. And it means the hardest work is front-loaded — which is the opposite of how quitting usually gets framed, as an endless test of willpower with no milestones in it.

So when I built the milestone ladder into my app, I moved it. It doesn't celebrate 30 days, because 30 days is just a calendar month and the calendar doesn't care about you. It celebrates the points that mean something:

Why most streak counters get a slip-up completely wrong

This is the part I got properly annoyed about while I was reading around it.

Most trackers — for anything, not just smoking — work on a streak. Miss a day and the number goes back to zero, and everything you built disappears off the screen. It looks like accountability. It's actually the single worst thing you can show someone who has just slipped.

Because relapse isn't the exception, it's the normal route. Research published in BMJ Open suggests it can take 30 or more attempts before someone quits for good. If your tracker treats attempt number one failing as the end of the world, it's built for a person who doesn't exist.

There's a nice bit of research on habits that settles it. A study out of UCL followed people forming new daily habits for twelve weeks and found — in plain terms — that missing one single day made no material difference to whether the habit formed. One day off is genuinely, measurably irrelevant. Only the app thinks otherwise.

So mine is built the other way round. There's a button that says "I had a slip" — no confession form, no guilt trip — and here's exactly what it does and doesn't touch:

So what is the app?

Fair question, because the tracker is one card on one screen of it.

Most personal trainers who have an app are renting one. There are a handful of companies that sell the same app to thousands of trainers with a different logo dropped on the front. Nothing wrong with that — but it means every one of those apps does exactly the same things.

Mine is built from scratch, published under my own name on the App Store and Google Play, and I can put anything in it I want. Which is how a stop-smoking tracker ends up in a personal trainer's app in the first place.

It's on iPhone, Android, and it works in a browser too. Clients get it as part of their coaching.

The breathing bit — and why it isn't meditation

I added a breathing section to the app in the same week as this post. I nearly didn't, because "mindfulness in a fitness app" usually means twenty minutes of whale noises nobody ever plays twice.

Then I read the research properly. A randomised study published in Cell Reports Medicine in 2023 compared five minutes a day of structured breathing against five minutes of mindfulness meditation — and the breathing came out better on mood and on breathing rate. Five minutes. Not twenty.

So that's what it is. No narrator, no whale noises, nothing to sit through. An animated ring you follow with your breath, and six patterns that are each tied to a moment in a training day rather than to a yoga mat:

The reason it sits in a post about smoking is simple: a craving is about three minutes long, and three minutes is very hard to just sit through. Having something specific to do with your hands and your lungs for that long is worth more than willpower.

The bit I'd be daft not to say

My app is a tracker. It counts things and it keeps you honest. It is not treatment, and I'm not pretending otherwise.

If you vape to get off cigarettes, the NHS view is that you're roughly twice as likely to succeed than going without, and that you should aim to come off the vape eventually too. I'm not going to make an ex-smoker on a vape fail a smoke-free tick in my app. That would be backwards.

Where training comes into it

Honestly? Not as the main event. I'm not going to tell you a gym session makes a craving disappear.

What I will say is what I see. The people who get through the first month are almost always the ones who put something in the gap. Quitting leaves a hole in the day — five, ten times a day — and a hole in the day is uncomfortable enough on its own to send people back. Training fills a chunk of it, gives you somewhere to put the restlessness, and puts a couple of fixed appointments in the week where you're accountable to a human being who'll notice.

The lifting and the food are still what change your body — that never moves for me. But if you wanted a four-week block with a bit of structure and someone in your corner, the four weeks you're trying to get to 28 days is a very good time to have one.

If you take one thing from this

Work out your own annual number. Properly, on a calculator, today. Then pick something you'd genuinely like that costs about the same, and understand that you're not being asked to give something up — you're being offered a straight swap.

Then get to 28 days, because after that the odds are on your side. And if you slip on day nine, you have not lost the nine days. You've had nine days. Start again on the tenth.

Where the numbers came from

• NHS Better Health — Quit Smoking (recovery timeline, the 28-day figure, the three-times-more-likely figure for expert help, and the guidance on vaping to quit): nhs.uk/better-health/quit-smoking
• Average UK price of a pack of 20 (about £16.50) — ONS price data; tobacco duty rates and the changes from November 2025 and October 2026 — gov.uk tobacco products duty.
• Average consumption of a little over 10 cigarettes a day among GB smokers — ONS adult smoking habits.
• Chaiton M et al., BMJ Open 2016;6:e011045 — estimated number of quit attempts before success.
• Lally P, van Jaarsveld CHM, Potts HWW, Wardle J, European Journal of Social Psychology 2010 — habit formation, and the finding that missing one day did not materially affect it.
• Balban MY et al., Cell Reports Medicine 2023;4(1):100895 — five minutes a day of structured breathing versus mindfulness meditation.

This article is general information, not medical advice, and my app is a tracker rather than a treatment. If you want help stopping smoking, your GP or your free local NHS Stop Smoking Service is the right place to start — and if you're one of my clients, tell me what's going on so I can train you around it. Photography licensed via Pexels.