The research behind Taper

What Taper does and doesn’t claim

Cutting down first and quitting all at once work about equally well on average. A Cochrane review of 22 trials with 9,219 people found no difference in quit rates [1]. One large trial even found quitting all at once did a little better [2]. So Taper doesn’t claim tapering beats cold turkey. It’s for people who would rather step down.

What does seem to matter is how you cut down. In one trial, people who spaced their cigarettes on a schedule that stretched each week were far more likely to have quit a year later than people who cut a daily quota at their own pace (44% vs 18%) [3]. A later, larger trial found no overall benefit, but the people who actually followed the schedule had about twice the odds of quitting [4].

Stand-alone quit apps haven’t been shown to raise quit rates on their own [17]. Some of the things inside them have, such as written if-then plans [11] and timed support messages [17, 18]. So Taper builds those in.

How the plan is built

Measuring before cutting

People tend to underestimate how much they use. A smart vape that logged every puff recorded about twice what users reported [29]. Taper’s optional measuring days let the plan start from what you really use.

A later first use each morning

How soon you use after waking is the strongest single predictor of a hard quit. In one study, 36% of people who waited more than an hour quit, compared with 8% of those who smoked within 5 minutes [5]. Taper moves your first use a little later each week and keeps a use-free window after you wake up.

Strength and amount, one at a time

When nicotine strength drops, people take longer and more frequent puffs to make up for it. At 3% instead of 5%, people inhaled about a third more in total [12, 34]. Taper alternates strength-drop weeks with amount-cut weeks instead of stacking both.

Optional spaced mode

Based on the scheduled-spacing trials [3, 4], cigarette, pouch and weed-session plans can spread the day’s allowance out (“next one from 2:40 PM”). It’s optional, because the large trial only helped the people who stuck to it.

Use-free days for weed

In cannabis research, the main goal is fewer days of use, and the Lower-Risk Cannabis Use Guidelines suggest limiting use to one or two days a week [37]. Weed and THC plans can add use-free days.

Quit day and the first two weeks

The first two weeks after quit day matter most. In one study, 83–97% of people who used at all in week 2 were using again at 6 months [6]. Half of quitters slip by about day 9 [8], and most unaided relapses happen in the first 8 days [7].

Automated text-message programs raise quit rates by about half [17], and interactive or personalized programs do better still [18]. A text program for teens who vape raised quit rates from 28% to 38% [19].

When you slip

After a slip, guilt and self-blame didn’t predict the next one. Lost confidence did [10]. People who did something restorative right away, like throwing the rest out or using a coping step, were less likely to slip again that day [9].

People who cut down tend to make fewer quit attempts [1], so pushing the quit date back over and over can work against you.

Riding out a craving

A single craving passes in minutes. Quit services suggest delaying at least five minutes, breathing deeply, doing something else and drinking water [21]. One short bout of exercise, even a few minutes, reliably lowers the urge for up to 30 minutes [20]. Exercise programs don’t raise long-term quit rates, though, so Taper presents movement as help for the craving in front of you.

Writing your own plan in the form “If [situation], then I’ll [action]” makes quitting about 1.7 times more likely [11].

What withdrawal is likely to feel like

Nicotine

Cigarette withdrawal peaks in the first week and usually lasts 2–4 weeks [22]. In a monitored study of people who vape, symptoms peaked on days 1–2 and were somewhat milder than for cigarettes [23]. Appetite often rises for the first few months after quitting smoking [24].

Weed

About 47% of regular users get withdrawal, more often with daily use or with tobacco [28]. Symptoms usually start on days 1–3, peak on days 2–6 and mostly fade within two weeks. Strange dreams and poor sleep can last 45 days or more [26, 27].

Health milestones after smoking

For cigarette plans, Taper uses the World Health Organization’s timeline, such as carbon monoxide in the blood returning to normal within 12 hours [25].

What helps most, alongside Taper

Medication has the largest effect on quitting smoking. Varenicline, cytisine and combination nicotine replacement (a patch plus gum or a lozenge) each roughly double the odds [13]. Starting the patch a few weeks before quit day helps a little more [14].

For quitting vaping, varenicline has the strongest trials: 51% vs 14% quit at the end of treatment in young people [15], with similar results in adults [16]. For weed, no medication is approved yet [36]. Counseling that combines motivational interviewing with CBT over several sessions has the best support [35]. Free quitline coaching also helps [33].

Taper is not a medical treatment. Talk to a doctor or pharmacist about these options.

The setup questions

Setup asks how soon after waking you use, how long it’s been part of your life, what happened when you stopped before, and how much you use compared with most people. How soon you use after waking is the strongest of these signs [5]. Taper uses your answers to explain your plan and suggest a pace. The summary is not a diagnosis, and your answers never leave your phone.

The “Withdrawal, spread out” chart in setup is an illustration of the pattern seen in the scheduled-tapering trial [3], not a prediction.

Starting amounts

If you skip measuring, Taper starts from typical amounts: