Comparison

Zero vs Intermittent Fasting Timer 168

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Zero

This app tracks intermittent fasting and nutrition to help users achieve real body composition changes. It integrates fasting, protein intake, meals, hydration, and habits for a holistic approach to weight loss and metabolic health.

Highlights
  • Intermittent fasting timers and streaks
  • Smart meal logging with photo recognition
  • Personalized daily protein target tracking
  • Integrated fasting and protein tracking
  • Water and habit tracking
  • Science-based insights on fasting and nutrition
Features
Read full description

Zero is the all-in-one fasting tracker and nutrition app built for real results. Most fasting and weight loss apps stop at simply tracking fasts or calories. Zero connects the full picture — fasting, protein, meals, hydration, and habits — so you actually change your body composition, not just your eating schedule. Here’s how Zero helps you get there: • Track your intermittent fasting — Engage timers, streaks, and insights keep you stay motivated and consistent across your entire fasting journey. • Log meals the smart way — Skip the tedious manual meal entry routine. With Zero Plus, snap a photo and get instant macros, protein composition, and clarity on how effectively your meals support your goals. Your first meal logs are on us, so you can try it before you subscribe. • Hit your Protein Score — Zero Plus tracks a personalized daily protein target that adapts to your weight and goals. Better protein = better satiety, better muscle retention, better weight loss. Zero makes it automatic. • Complete the equation: Fasting + Protein — Most people fast or track meals. Zero brings them together so you lose weight, protect muscle, and avoid the pressure and guilt of traditional calorie trackers. • Stay hydrated to power your fasts — Water tracking with Zero Plus helps you maintain energy, reduce cravings, and support metabolic function throughout the day. • Build healthy habits that actually matter — Track movement, sleep, mood, and other daily pillars that reinforce your fasting and fueling routine. • Challenge yourself — Hit protein targets, maintain fasting streaks, and stay accountable with motivating challenges built around outcomes, not vanity metrics. • Learn the real science — Understand how fasting, protein, and hydration work together for sustainable weight loss and metabolic health — with insights from leading experts. • See measurable progress — Watch your streaks grow, your protein consistency rise, and your body composition improve with clean, insightful trend views. Whether you’re starting out or optimizing an existing routine, Zero gives you the structure, guidance, and clarity most apps miss. Zero is not a medical device and does not provide medical advice, diagnosis, or treatment. Always consult your doctor or qualified healthcare provider before making any changes to your diet, fasting routine, or health regimen. Zero is free to download, with fasting timers, streaks, weekly trends, expert articles, and challenges included. Zero Plus is an optional subscription that unlocks photo meal logging and your Protein Score, water tracking, custom fasts and saved presets, Fat-Burning Mode, the mood journal and daily habit insights, premium articles and Plus-only challenges, and monthly, yearly, and correlated charts. A free trial is available. Payment for Zero Plus will be charged to your Apple Account when you subscribe. Subscriptions automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. Manage your subscription in your Account Settings. Read more terms & conditions: Terms of use: https://www.zerolongevity.com/terms-of-use Privacy policy: https://www.zerolongevity.com/privacy-policy

About

Intermittent Fasting Timer 168

This app helps women track intermittent fasting and menstrual cycles. It monitors fasting and eating hours, period predictions, and ovulation. Optimize your health and well-being with integrated fitness and nutrition logging.

Highlights
  • Intermittent fasting tracker
  • Menstrual cycle tracking
  • Period predictions and reminders
  • Ovulation tracking
  • Weight and hydration monitoring
  • Workout and activity logging
  • Nutrition and meal planning
Features
Read full description

FastingQueens — Intermittent Fasting & Period Tracker for Women FastingQueens is an intermittent fasting tracker built for women, combining a fasting timer and a period tracker in one simple app. Track your fasting windows, log your periods, and monitor your weight — all in one place. WHY WOMEN CHOOSE FASTINGQUEENS Most fasting apps treat everyone the same. FastingQueens is designed around the way women actually track their health, letting you keep your fasting and your cycle side by side in a single, easy-to-use app. FASTING TRACKER - Simple, modern fasting timer - Multiple customizable fasting plans (12:12, 14:10, 16:8, 18:6, 20:4, OMAD, and Crescendo) - Fasting schedule planner and reminders - Detailed fasting stats to review your progress - Journal entries to reflect after each fast PERIOD & CYCLE TRACKER - Log your periods and track cycle length - Next-period predictions based on your logged history - Record flow intensity and symptoms - Keep your fasting and period data in one view WEIGHT & DAILY HEALTH - Track your weight over time toward your goal - Log hydration, sleep, mood, and activity - Hydration reminders to help you stay on track - Meal planner to organize your meals in advance HELPFUL CONTENT - Articles on intermittent fasting, nutrition, and women's health topics - Educational information to help you understand fasting and your cycle FastingQueens brings your fasting timer, period tracker, and weight log together in one app made for women. SUBSCRIPTION PRICING FastingQueens offers a Premium subscription: - Yearly plan with a 7-day free trial - Yearly plan - Monthly plan - Lifetime option Prices vary by region and are shown in the app before purchase. Your subscription renews automatically at the end of each term unless auto-renew is turned off at least 24 hours before the period ends. You can manage or cancel your subscription anytime in your Apple Account settings. Note: FastingQueens is a tracking and information app, not a medical device, and does not provide medical advice. Intermittent fasting may not be suitable for everyone. Consult a healthcare professional before starting any fasting or diet program, especially if you are pregnant, breastfeeding, or have a medical condition. Terms of Use: https://www.fastingqueens.com/term-of-use/

Screenshots

Zero4 screens
Intermittent Fasting Timer 1684 screens

Verdict

The call

The clearest difference is review sentiment: Intermittent Fasting Timer 168 at 79% against Zero's 33%. Intermittent Fasting Timer 168 also leads on iOS requirement (15.6 vs 17.0). Zero's advantage is rating (4.8 vs 4.3) and ratings volume (445K vs 21). On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Zero sells 10 in-app purchases, starting at $9.99 per month and Intermittent Fasting Timer 168 sells 6 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Zero holds the better App Store score, 4.8 against 4.3. That said, the two scores are not equally well evidenced: Zero has 445K ratings behind it against 21, so its average is the more settled of the two. Written reviews complicate that: 33% of Zero's written reviews are positive against 79% of Intermittent Fasting Timer 168's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Zero ships an update every 2 weeks, Intermittent Fasting Timer 168 every 3 weeks. The most recent releases landed on September 24, 2026 and August 4, 2026 respectively.

Scorecard5 real differences · 6 level
Zero versus Intermittent Fasting Timer 168: the parameters behind the verdict, then further details
ParameterZeroIntermittent Fasting Timer 168
PriceFreeFree
Rating4.8 (445K ratings) — better4.3 (21 ratings)
Positive reviews32.6% of reviews78.9% of reviews — better
Number of ratings445K — better21
Update frequencyEvery 2 weeks — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
Best chart rank#115 — better—
DevicesiPhone, Apple WatchiPhone, iPad, iPod — better
Requires iOS17.015.6 — better
Further details — not scored
Size238 MB44 MB
Age rating17+12+
DeveloperZero Longevity Science, Inc.FOR NEXT GEN

Customer experience

Zero

All ratings445,297 ratings
Positive96.3%
Neutral2.1%
Negative1.6%
Written reviews1,364 reviews
Positive32.6%
Neutral8.6%
Negative58.9%

Intermittent Fasting Timer 168

All ratings21 ratings
Positive81.0%
Neutral0.0%
Negative19.0%
Written reviews19 reviews
Positive78.9%
Neutral0.0%
Negative21.1%

Bugs and requests

Zero

Reported bugs

3 issues
  • Password reset problems
  • Inaccurate fasting time tracking
  • Inability to exit trial without subscribing

Requested features

6 requests
  • Custom fasting periods longer than 24 hours
  • Ability to edit fasting type and duration
  • Integration with more health/fitness apps
  • Water intake tracking
  • Personalized fasting recommendations
Show 1 more
  • Improved data visualization and analytics

Intermittent Fasting Timer 168

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Zero

Subscriptions10
  • Zero Plus Subscription2 variants$9.991 Month
  • Zero Plus Subscription7 Days trial$9.991 Month
  • Zero Plus Subscription$39.991 Year
Show 7 more
  • Zero Plus Subscription7 Days trial$49.991 Year
  • Zero Plus Subscription7 Days trial3 variants$69.991 Year
  • Zero Plus Subscription$69.991 Year
  • Zero Plus Subscription1 Year trial3 variants$69.991 Year
  • Zero Plus Subscription1 Month trial$69.991 Year
  • Zero Plus Subscription1 Month trial$89.991 Year
  • Zero Plus Subscription7 Days trial$89.991 Year
6 purchases

Intermittent Fasting Timer 168

Subscriptions4
  • Monthly 20% Offer$7.991 Month
  • Monthly$9.991 Month
  • Yearly + 1-Week Free Coaching$59.991 Year
Show 1 more
  • Yearly with 7-Day Free Trial7 Days trial$69.991 Year
One-time2
  • Lifetime 30% Off$49.99
  • Lifetime Offer$69.99

Questions

Is Zero free?
Zero is free to download, with in-app purchases available.
Is Intermittent Fasting Timer 168 free?
Intermittent Fasting Timer 168 is free to download, with in-app purchases available.
Which has better reviews, Zero or Intermittent Fasting Timer 168?
Zero is rated higher. Zero averages 4.8 out of 5 from 445K ratings, while Intermittent Fasting Timer 168 averages 4.3 from 21 ratings.
Do Zero or Intermittent Fasting Timer 168 have ads?
Neither Zero nor Intermittent Fasting Timer 168 shows ads.
Which is updated more often, Zero or Intermittent Fasting Timer 168?
Zero ships an update every 2 weeks, and Intermittent Fasting Timer 168 every 3 weeks. Most recently, Zero was updated on September 24, 2026 and Intermittent Fasting Timer 168 on August 4, 2026.

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