Is Zero Free? Zero Plus Price, Trial, Cancel and Refund Rules
ChatGPT 
Claude 
AI Mode 
Perplexity 
Zero is free to download, and the fasting timer stays free. Zero Plus costs $69.99 a year or $9.99 a month in the US. The 7-day free trial only comes with the yearly plan, and on iPhone you must cancel at least 24 hours before it ends.
TL;DR: Zero pricing in September 2026
Free: fasting timer, some preset fasts, one rolling week of tracked data, streaks, select articles, challenges, and three free meal logs for new loggers
Zero Plus: $69.99 a year (about $5.83 a month) or $9.99 a month, US prices from Zero's help center
Trial: 7 days, yearly plan only, once per account
Refunds: Apple decides App Store refunds. Zero handles Google Play and web (Stripe) refunds within 30 days of purchase
A 2025 network meta-analysis in the BMJ pooled 99 randomized trials with 6,582 adults and found that every intermittent fasting strategy reduced body weight compared with eating freely, but time-restricted eating, the 16:8 style most Zero users follow, did no better than ordinary daily calorie restriction (Semnani-Azad et al., 2025). I am a nutritionist on the NutriScan team, and I keep that finding in mind when someone asks me whether Zero Plus is worth paying for. The timer that helps you stick to a window is free. The part you pay for is mostly the food side: meal photos, a protein target, and longer-range charts.
This guide answers the title question with Zero's own help center articles as they read on September 19, 2026, plus the current App Store and Google Play listings. I opened every page I cite.
IMPORTANT
Your Zero pricing checklist at a glance.
Four things to settle before you tap Subscribe.
⏱️ Progress 0/4 • ~0 minutes in • Keep going
⏳ Step 1: What free Zero still does
⏳ Step 2: What Zero Plus costs and adds
⏳ Step 3: Trial, cancel and refund rules
🔍 The one Zero Plus setting that is missing from the price list (revealed near the end)
Is Zero free? What the free version includes
Yes. Zero is made by Zero Longevity Science, Inc. and is listed as free on both stores. On the US App Store it holds a 4.8 rating from about 445,000 ratings. On Google Play it shows more than 1 million downloads and a 3.8 rating from about 61,200 reviews.
Zero's help center now has a short article titled "Is Zero still free?". Its answer is yes, and it says you do not need Zero Plus to track fasts. It lists three things in the free version:
- The fasting timer, including starting, ending and editing a fast, and some preset fasting goals
- One rolling week of your tracked data
- Select content from the library
The App Store description adds that streaks, weekly trends, expert articles and challenges are free. Since the August 10, 2026 update, anyone who has never tried meal logging also gets three free meal logs.
The line that matters most is "one rolling week of your tracked data." Monthly, yearly and correlated charts sit behind Plus, according to the App Store listing. Free Zero is a good timer with a short memory.
The Plus screen on launch is an offer
Zero's help article says the Zero Plus screens you see when you open the app are "an offer, not a requirement." Tap through to the last screen and look for the option to close or continue without subscribing. Zero notes it "can take a moment to appear." Declining takes you into the free version with your data intact.
Older users remember a bigger free tier, and some are unhappy. One App Store review on the listing reads: "unfortunately I forgot to cancel after my free trial. But it's not worth $70/year."
The face most people make when a free trial turns into a $69.99 charge.
Zero Plus price: what each plan costs
Zero's help center publishes its regular US price list. There are two paid plans:
| Plan | US price | Billing | Cost per month |
|---|---|---|---|
| Zero Plus yearly | $69.99 | Charged up front, renews yearly | $5.83 |
| Zero Plus monthly | $9.99 | Charged monthly, renews monthly | $9.99 |
| Zero (free) | $0 | None | $0 |
Twelve months on the monthly plan cost $119.88, so the yearly plan saves $49.89 if you keep Plus for a full year. The monthly plan suits a one-month test after you skip the trial, or someone who fasts in seasons and wants to switch Plus off for months at a time.
Two notes from the same article matter more than the numbers:
- Currency. For anyone outside the US or paying in another currency, Zero says Apple and Google set the currency and conversion rates, "which may increase subscription pricing." Zero asks you to check the price before you buy.
- The payment sheet binds you. Zero asks iPhone users to read the Apple purchase pop-up before authorizing with Face ID. That sheet, not a store listing or an ad, shows the exact price and renewal date you are agreeing to.
Why the App Store shows $69.99, $89.99 and $9.99 at once
The in-app purchase list on Zero's App Store page shows ten entries, all named "Zero Plus Subscription": six at $69.99, two at $9.99 and two at $89.99. Zero's pricing article explains that these prices "reflect different promotions that we've offered in the past and may offer again in the future," and that Apple "does not permit developers to remove historical pricing options." Every price point gives you the same features. The $89.99 entries do tell you the yearly price has been higher before, so screenshot your payment sheet on the day you subscribe.
IMPORTANT
Checkpoint: here's where you are right now.
You know what is free and what Plus costs. Next, what the money buys.
⏱️ Progress 1/4 • ~2 minutes in • Keep going
✅ Step 1: What free Zero still does (done)
👉 Step 2: What Zero Plus costs and adds (you're here)
⏳ Step 3: Trial, cancel and refund rules
🧩 The setting missing from the price list (coming soon)
What Zero Plus adds, feature by feature
Zero relaunched its paid tier on January 7, 2026, in a post by founder and CEO Mike Maser called "Meet the New Zero Plus". The pitch moved from fasting content to food. Maser wrote that users had told the company for years: "I'm nailing fasting. It's the eating part I'm struggling with."
This table combines the current App Store description with Zero's help center comparison:
| Feature | Free | Zero Plus |
|---|---|---|
| Fasting timer, start, end and edit a fast | Yes | Yes |
| Some preset fasting goals | Yes | Yes |
| Custom fasts and saved presets | No | Yes |
| Streaks, weekly trends, challenges | Yes | Yes, plus Plus-only challenges |
| Tracked data history | One rolling week | Monthly, yearly and correlated charts |
| Photo and text meal logging | 3 free meals for new loggers | Unlimited |
| Protein Score | No | Yes |
| Water tracking | No | Yes |
| Fat-Burning Mode on the timer | No | Yes |
| Mood journal and daily habit insights | No | Yes |
| Articles | Select articles | Premium articles, videos, weekly newsletter |
| Family Sharing on iOS | No | Yes |
Zero's older help center comparison, What are the Benefits of Zero Plus?, still lists logging of weight, sleep, resting heart rate, calorie intake, activity, glucose and ketones, and direct Apple Health, Google Fit, Fitbit and Oura integrations, as available on both versions. The newer free-version article does not repeat that list, and it caps free history at one rolling week. If a specific metric matters to you, check it in the free app before you pay.
The Protein Score is the center of the paid product. Zero's launch post says the current US RDA for protein is 0.36 grams per pound of body weight, and that Zero's Chief Medical Officer, Dr. Naomi Parrella, recommends at least 0.7 to 0.8 grams per pound for most adults. The score tracks you against that higher, personal target. Meal logging feeds it: take a photo or type a description, and Zero returns calories, protein and other nutrients you can edit.
The same post is clear about scope: "Our goal isn't to turn you into a macro-counting expert or overwhelm you with nutritional minutiae." Zero Plus is a protein-first food log attached to a fasting app. It is not built to audit every gram of fat.
The three free meals and the calorie model fix
Zero's August 10, 2026 product update is worth reading before you pay. Maser wrote that Zero's own data showed photo logging "was sometimes overestimating calories," because users corrected meals down far more often than up. Zero switched to a new model, tested it on about 12,000 meals per side, and reported "a significant reduction in calorie overestimation."
That post also introduced "Fix It" editing, where you type a correction like "No cheese" or "That was half a serving," and three free meals for people not on Plus who have never tried meal logging. Maser called them "the real thing, including 'Fix It' and photo logging with the updated model." Use them on your three most typical meals before you decide. The same update shipped a rebuilt Apple Watch app that "is available to everyone," and expanded Fasting Zones. The Google Play description still lists Fasting Zones under Zero Plus premium features, so trust the in-app paywall over any store text.
The Zero Plus 7-day free trial rules
Zero's trial article sets three conditions that catch people out:
- The trial belongs to the yearly plan only. The article says the offer "is only associated with our regularly priced yearly (annual) subscription." When the 7 days end, the charge is $69.99 in the US, not $9.99.
- One trial per account. Zero warns that "if a second free trial is initiated, you may inadvertently be charged for a normal yearly subscription." If you tried Plus before with the same login, assume there is no trial and read the payment sheet.
- Cancel at least 24 hours before it ends. Zero follows Apple's rule, linked from its article to Apple's subscription support page, that trials and auto-renewals must be canceled at least 24 hours before expiration. You keep Plus until the trial period ends either way, so cancel on day 5 or 6.
You can see the trial end date in Zero under Me, settings gear, Zero Plus.
IMPORTANT
Checkpoint: midway progress update.
You know the price and the features. Now the rules that decide whether you get charged.
⏱️ Progress 2/4 • ~4 minutes in • Keep going
✅ Step 1: What free Zero still does
✅ Step 2: What Zero Plus costs and adds
👉 Step 3: Trial, cancel and refund rules (current)
⏳ The setting missing from the price list (next)
How to cancel Zero Plus
Where you cancel depends on where you paid. Zero's cancel article lists three paths.
iPhone and iPad (App Store): Open Settings ➡️ tap your name ➡️ Subscriptions ➡️ select Zero ➡️ Cancel Subscription. Zero cannot cancel an App Store subscription for you.
Android (Google Play): Open the Google Play Store app ➡️ tap your profile icon at the top right ➡️ Payments and subscriptions ➡️ Subscriptions ➡️ select Zero ➡️ Cancel subscription, then confirm.
Web payment (Stripe): In Zero, tap the Me tab ➡️ settings gear ➡️ Help Center and Support ➡️ chat icon, then choose the subscription or trial cancellation flow.
Canceling stops the next renewal and leaves Plus active through the end of the current billing period. To confirm it worked, open Me, settings gear, Zero Plus. If the button reads "Renew Subscription," auto-renewal is off and Zero says you "won't be charged again." If it still reads "Cancel Subscription," the cancellation has not gone through.
Charged after canceling? The three usual causes
Zero's help center has an article called "I Canceled but was Still Charged". It gives three explanations, in this order:
- Canceling stops the next charge, not the current one. If the charge is dated on or near your renewal date, it is most likely for the cycle you are in now. Check the "Ends On" date under Me, settings gear, Zero Plus.
- An Apple trial converted. A trial canceled inside the final 24 hours still converts to a paid subscription, "even though you took action before the trial's end date."
- You canceled on a different account. Email and password, Sign in with Apple, Continue with Google and Continue with Facebook each create a separate Zero account. You can cancel on one while another keeps billing.
If you ever signed in two different ways, check the subscription on both accounts.
Waiting until the last hour of a trial to cancel is how a free week turns into a paid year.
Zero Plus refund rules by store
Zero's refund article says its ability to refund depends entirely on how you paid:
| Where you paid | Who refunds | Window | How |
|---|---|---|---|
| Apple App Store | Apple only | Apple decides | Request at getsupport.apple.com |
| Google Play | Zero | Within 30 days of purchase, later requests case by case | In Zero: Me, settings gear, Help Center and Support, chat |
| Stripe (web) | Zero | Within 30 days of purchase, later requests case by case | Same in-app chat |
The Apple row is the one to remember. Zero writes that Apple "does not permit us to modify subscriptions, cancel current subscriptions or issue refunds to our customers directly from our side." If you forgot to cancel a trial on iPhone and were charged $69.99, emailing Zero gets you a redirect to Apple. Ask Apple quickly and give one clear reason.
For Google Play and web purchases, Zero's 30-day window is more generous than many fasting apps, which send every refund to the store. Our fasting app refund guide compares refund rules across fasting apps, and the Fastic pricing guide covers Fastic's 14-day money-back guarantee. FastEasy is stricter: its refund policy treats web purchases as final outside two narrow cases.
What the research says about paying for a fasting app
Zero Plus sells two things: a richer fasting experience and a protein-focused meal log. The evidence for each is different.
On fasting itself, large trials agree. The BMJ network meta-analysis above found that time-restricted eating reduced weight compared with eating freely, but not compared with a regular calorie-restricted diet. Alternate day fasting was the only fasting pattern with an edge over continuous restriction, a mean of 1.29 kg (Semnani-Azad et al., 2025).
A 12-month trial in the New England Journal of Medicine randomized 139 adults with obesity to calorie restriction with an 8 a.m. to 4 p.m. eating window, or calorie restriction alone. Weight loss was 8.0 kg with the window and 6.3 kg without, and the difference was not statistically significant (Liu et al., 2022). A 12-week feeding study of 41 adults in Annals of Internal Medicine held calories equal in both groups. A 10-hour window produced 2.3 kg of weight loss against 2.6 kg on a usual eating pattern, and the authors concluded that earlier results for time-restricted eating may come from eating fewer calories (Maruthur et al., 2024).
One trial does favor a strict early window. In a 14-week trial of 90 adults with obesity, eating between 7 a.m. and 3 p.m. produced 2.3 kg more weight loss than a window of 12 hours or longer, about 214 fewer calories a day, and lowered diastolic blood pressure by an extra 4 mm Hg (Jamshed et al., 2022). Participants kept the early window about 6 days a week. That kind of consistency is where a timer with streaks and reminders can help, and the timer is the free part of Zero.
On the food side, a 2025 meta-analysis of 11 randomized trials with 1,717 adults found that smartphone-only weight-loss apps produced a modest but significant drop in body weight at 4 to 6 months, with the effect looking limited beyond 6 months and a tendency toward regain (Pujia et al., 2025). That curve argues for the monthly plan if you are new to meal logging. The benefit tends to show early, and you can stop paying when it levels off.
IMPORTANT
Checkpoint: final stretch before the reveal.
Price, features, trial, cancel and refunds are covered. One setting left.
⏱️ Progress 3/4 • ~6 minutes in • Keep going
✅ Step 1: What free Zero still does
✅ Step 2: What Zero Plus costs and adds
✅ Step 3: Trial, cancel and refund rules
✨ The setting missing from the price list (about to reveal)
Who Zero Plus makes sense for
Zero Plus at $69.99 a year is a reasonable buy if you already fast on a schedule, you want protein to be the one nutrition number you watch, and you would rather log meals inside your fasting app than in a separate tracker. It also makes sense if you want more than a week of history, since free Zero keeps only one rolling week.
It is a poor buy if you only want a timer. Free Zero already does that. It is also a poor buy if you want detailed macro tracking and a full nutrient breakdown for every meal, because Zero says outright that the meal feature is not meant to make you a macro-counting expert.
If you want a timer plus a full food log, our pricing guides for YAZIO, BodyFast and Simple use the same layout as this one, and our roundup of Fastic alternatives compares free-tier depth across fasting apps.
The Zero Plus setting that isn't on the price list: Family Sharing
Here is the reveal. Zero's price list shows one person paying $69.99 a year. Zero's August 10 update says Plus members on iOS can now share their subscription "with up to five family members," through Apple's Family Sharing. The feature is announced in a product update, not on the pricing page.
What that means in numbers: if three adults in one Apple family each want Plus, three separate yearly plans cost $209.97. One shared plan costs $69.99, about $23.33 per person. It is the biggest discount Zero offers, and you get it without a promo code.
Two limits apply. Zero's post names iOS only, so Android households cannot share this way. And the people you share with have to be in your Apple family group. If you do not have one set up, Apple's Family Sharing page explains how.
6 tips before you pay for Zero Plus
- Use the three free meals on your three most common meals. They run on the same model and Fix It editing as Plus. If the estimates look wrong for your food, paying will not fix that.
- Pick the plan you would keep. The trial only exists on the yearly plan. If you prefer monthly, skip the trial and buy one month for $9.99. That is cheaper than a forgotten trial.
- Read the payment sheet. It shows the real price in your currency and the renewal date.
- Check for a past trial. One per account. A second attempt can charge a full year.
- Know your store. On iPhone, refunds go through Apple. On Android and web, Zero has a 30-day window.
- Turn on Family Sharing on iOS the day you subscribe. One plan covers up to five family members.
Where NutriScan fits
Zero keeps its timer free and charges for food logging. NutriScan starts from the meal and keeps the everyday tools free: the intermittent fasting timer (14:10, 16:8, 18:6, 20:4 or a custom window of 1 to 23 hours) with streaks and a weekly chart, water tracking with a daily goal, and 5 AI meal scans a week. Premium, at about $59 a year, adds unlimited scans, a personalized diet plan and the Progress tab with AI insights. NutriScan has more than 150,000 downloads and a 4.6-star rating.
NutriScan's free fasting timer: pick a plan from Home > Fasting tab
Scan a meal and tag how it was cooked (Home > Camera Icon > Click Picture)
Free water tracking with a daily goal (Home > Water tab)
A photo scan returns calories, protein, carbs, fat and micronutrients for mixed plates, and you can adjust the cooking method and oil level before it logs. If Zero's three free meals showed you that photo logging fits your day, NutriScan's pricing guide uses the same layout as this post, and the cheapest nutrition app comparison puts both apps next to the trackers people most often switch from.
IMPORTANT
Recap: everything you checked this round.
Save this list for the day you decide.
⏱️ Progress 4/4 • ~8 minutes in • Nicely done
✅ Free Zero: timer, some presets, one rolling week of data, three free meals
✅ Zero Plus: $69.99 a year or $9.99 a month in the US
✅ Trial, cancel and refund rules by store
✅ Family Sharing: one iOS plan for up to five family members (revealed)
FAQ
Is the Zero fasting app free?
Yes. Zero is free to download and you do not need Zero Plus to track fasts. Zero's help center says the free version includes the fasting timer with some preset fasting goals, one rolling week of your tracked data, and select content. The App Store listing adds streaks, weekly trends, expert articles and challenges. New users who have never tried meal logging also get three free meal logs.
How much does Zero Plus cost?
Zero's help center lists two regular US prices: $69.99 a year, charged up front, or $9.99 a month. Both auto-renew. Apple and Google set prices in other currencies, which can be higher. The App Store also lists $89.99 entries, which Zero says are past promotional price points that Apple does not let developers remove.
Does Zero Plus have a free trial?
Yes, 7 days, attached only to the regularly priced yearly plan and usable once per account. If a second trial is started on the same account, Zero warns you may be charged for a normal yearly subscription. On Apple, cancel at least 24 hours before the trial ends or it converts to a paid year.
How do I cancel Zero Plus?
On iPhone, open Settings, tap your name, tap Subscriptions, select Zero and tap Cancel Subscription. On Android, open Google Play, tap your profile icon, go to Payments and subscriptions, then Subscriptions, select Zero and tap Cancel subscription. For a web purchase through Stripe, use the chat in Zero under Me, settings gear, Help Center and Support. You keep Plus until the end of the paid period.
Can I get a refund on Zero Plus?
It depends on where you paid. Apple handles every App Store refund, so you request it at getsupport.apple.com. For Google Play and Stripe web purchases, Zero says it accommodates refund requests made within 30 days of purchase and considers later requests case by case, through the chat in the app.
