Less - Alcohol Tracker icon
Zero: Fasting & Food Tracker icon
Zero - Intermittent Fasting icon

Zero Longevity Science

For health-conscious individuals and intermittent fasters focused on sustainable weight loss, muscle preservation, and metabolic health.

3apps4.3(507.3K)Health & Fitness

Snapshot

Who is Zero Longevity Science?

Helping health-conscious individuals optimize metabolic health and longevity through data-driven fasting and nutrition tracking.

Target audience

Health-conscious individualsIntermittent fasters focused on sustainable weight lossMuscle preservation

Active nemesis

HealthVida GmbH & Co. KG.

Other rivals

Portfolio

Free 3
3
apps
Health & Fitness3

Last updated

Zero: Fasting & Food Tracker

v7.6.0

7mo ago

Steady

Publisher DNA

What defines Zero Longevity Science?

Publisher DNA

Primary focus

Metabolic health and longevity tools

Scale

indie

Target audience

Health-conscious individuals and intermittent fasters focused on sustainable weight loss, muscle preservation, and metabolic health.

Signature Patterns

  • •Transition from simple habit timers to comprehensive nutrition platforms
  • •Freemium monetization with a heavy emphasis on premium AI-driven features
  • •Science-based, judgment-free approach to habit modification
  • •High-intent targeting of the longevity and metabolic health market
Steady

Portfolio momentum

Maintained a steady release cadence with 2 updates in the last 6 months, primarily focused on the flagship title.

Last release 13d agoActive apps 1Abandoned 1

Portfolio

What does Zero Longevity Science ship?

Apps

3 apps analysed

Automated Oura syncing integrates biometric data to increase platform stickiness.

  • Manual fasting and weight tracking tools provide a simple and effective health monitoring experience
  • Aggressive paywalls prevent new users from accessing basic app functionality without a paid subscription
Zero - Intermittent Fasting icon
Zero - Intermittent Fasting

Burn fat and lose weight with our intermittent fasting tracker

3.8(61.1K)

Distributed across 14 markets, strongest in Europe.

Based on 2 of 3 apps with localized market data, more coverage rolling in as scans complete · last scanned .

Americas (3)

  • United States2 / 2
  • Canada1 / 2
  • Mexico1 / 2

Europe (6)

  • France1 / 2
  • Germany1 / 2
  • Netherlands1 / 2
  • Spain1 / 2
  • Turkey1 / 2
›+1 more europe market
  • United Kingdom1 / 2

Asia-Pacific (5)

  • Australia1 / 2
  • India1 / 2
  • Indonesia1 / 2
  • Singapore1 / 2
  • Vietnam1 / 2

Core markets (2/2 apps)

United States

User Sentiment

How do users feel about their apps?

0

Positive apps

0

Neutral / mixed

1

Negative apps

20/100

Avg sentiment score

Rivals

Who does Zero Longevity Science compete with?

The rivals identified

Nemeses(1)

HealthVida GmbH & Co. KG.

known forFastic Weight Loss & Fasting

1 app4.4Health & Fitness

Both apps target the same metabolic health and intermittent fasting audience, competing directly through subscription-based models that gate core tracking features.

Contenders(10)

BodyFast

known forBodyFast: Intermittent Fasting

1 app4.7Health & Fitness

Both apps target the intermittent fasting market with subscription-based models, directly competing for users seeking weight loss through structured, timer-led habit loops.

Bongmi Global

known forFastin: Intermittent Fasting

1 app4.8Health & Fitness

Fastin targets the same intermittent fasting audience as Zero, positioning itself as a low-friction alternative that avoids the manual calorie counting and complex tracking Zero now emphasizes.

Hendrik Folkerts

known forFasting Tracker & Diet App

1 app4.6Health & Fitness

Both apps target the intermittent fasting market, but the rival captures users seeking a free, no-friction utility that Zero currently gates behind a subscription.

Kai Oelfke

known forIntermittent Fasting Tracker:

2 apps4.9Health & Fitness

Both apps compete for the intermittent fasting audience, but Intermittent Fasting Tracker captures users who reject the account requirements and subscription-only model currently enforced by Zero.

Komorebi

known forSmartDiet: Weight Loss Tracker

1 app4.9Health & Fitness

SmartDiet competes by offering a low-friction, free weight-tracking alternative for users who find the subscription-only model and complex metabolic tracking in Zero unnecessary for their basic weight management goals.

Leap Health

known forIntermittent Fasting Tracker -

1 app4.9Health & Fitness

Both apps target users managing weight and metabolic health through fasting and nutrition tracking, creating direct competition for users seeking automated logging solutions.

Mosaic S.r.l.

known forWindow - Intermittent Fasting

1 app4.5Health & Fitness

Both apps target intermittent fasting users, but Window utilizes a freemium model while Zero restricts basic functionality behind a subscription, creating a direct conflict for price-sensitive users.

Samtark Pty

known forFasting Tracker • Easy Fast

1 app5.0Health & Fitness

Both apps compete for the intermittent fasting market, but Easy Fast captures users seeking a low-friction, free experience that Zero currently gates behind a subscription.

WELLTECH APPS

known forFastEasy: Intermittent Fasting

1 app4.6Health & Fitness

Both apps target users focused on weight management and metabolic health through intermittent fasting, creating direct competition for the same user base.

YAZIO

known forAI Calorie Tracker by Yazio

1 app4.7Health & Fitness

Both applications target users managing body composition through nutrition and fasting, but Yazio's freemium model captures the casual user base currently alienated by the subscription-only paywall in Zero.

Same space(35)

80UGame

known forPulseSense – Health Tracker

1 app4.6Health & Fitness

Monitors chronic health markers like blood pressure and glucose, which are often tracked alongside fasting.

adidas

known foradidas Running: Run tracker

1 app4.6Health & Fitness

Tracks physical activity and training performance, providing a data-rich companion to fasting-based weight management.

Algebraic Labs

known forNutrition Tracker: Foodnoms

1 app4.7Health & Fitness

Foodnoms serves the same nutrition-tracking audience as Zero by emphasizing privacy and fast, multi-modal logging.

AM APPS

known forSimple: AI Weight Loss Coach

1 app4.7Health & Fitness

Simple targets the same weight-loss audience as Zero but differentiates through a gamified, AI-driven coaching persona named Blinky.

Arta Ghasemi

known forBuff Kitty Protein Tracker

1 app5.0Health & Fitness

Buff Kitty Protein Tracker targets the same lifter demographic as Zero by focusing exclusively on protein intake to simplify tracking.

BetterMe

known forBetterMe: Health Coaching

1 app4.7Health & Fitness

Combines nutrition and fitness coaching to provide a structured weight loss path for fasting users.

Clue Period Tracker by BioWink

known forClue: Period & Cycle Tracker

1 app4.5Health & Fitness

Provides a science-based platform for cycle tracking that users often pair with metabolic health monitoring.

dreamspark

known forInterval Timer

1 app4.9Health & Fitness

Supplies a specialized timing tool for HIIT and circuit training, often used during active fasting windows.

EZ Health

known forWeight Loss for Women: Workout

1 app4.8Health & Fitness

Delivers home-based workout sessions to support weight loss goals alongside fasting habits.

Fitia Technologies

known forFitia: Calorie Counter & Diet

1 app4.8Health & Fitness

Tracks nutrition and macros for users who want to manage intake alongside their fasting schedule.

Flo Health

known forFlo Ovulation & Period Tracker

1 app4.7Health & Fitness

Manages reproductive health data, which users frequently track in tandem with metabolic health markers.

Google

known forFitbit: Health & Fitness

3 apps4.1Health & Fitness

Aggregates wearable health data, serving as a comprehensive dashboard for users tracking fitness and fasting.

HealthTracker Apps

known forHealth Tracker: BP Monitor App

1 app4.4Health & Fitness

Monitors heart rate and blood pressure, providing health metrics that users often track alongside fasting.

Hevy Gym Workout Tracker

known forHevy - Gym Log Workout Tracker

1 app4.9Health & Fitness

Facilitates gym-based strength tracking for users who want to monitor muscle growth during fasting periods.

Holograph

known forMist - Nutrition Tracker

1 appHealth & Fitness

Mist serves the same nutrition-tracking audience as Zero by focusing on a notes-app-like speed for logging.

Improvement Tech

known forCal AI - Food Calorie Tracker

1 app4.6Health & Fitness

Simplifies calorie and macro tracking for users who want to monitor intake during eating windows.

Ivy Apps

known forIvy: Processed Food Scanner

1 app4.6Health & Fitness

Ivy serves the same health-conscious audience as Zero but focuses on ingredient-level analysis to identify additives and processed components.

Jason DeStigter

known forDailyP: Protein Tracker

1 app4.9Health & Fitness

DailyP serves the same protein-focused audience as Zero by utilizing voice logging to minimize the time spent on data entry.

Kodeon

known forWeFast: Diet Plan for Women

1 app4.9Health & Fitness

WeFast targets the same fasting-focused audience as Zero but differentiates through its emphasis on non-scale victories and expert-backed support.

Leap Fitness

known forFitness Coach: Weight Loss

3 apps4.9Health & Fitness

Offers guided home workouts that provide an active fitness component to a fasting-based weight loss plan.

Lyfta Gym Workout Tracker

known forLyfta: Gym Log Workout Tracker

1 app4.7Health & Fitness

Offers precise gym logging for users who combine intermittent fasting with strength training.

MacrosFirst

known forMacrosFirst - Macro Tracker

1 app4.9Health & Fitness

MacrosFirst serves the same fitness-conscious audience as Zero but provides higher precision by deriving calories directly from macro inputs.

Melloway

known forProtein Tracker & AI Counter

1 app4.9Health & Fitness

Protein Buddy serves the same fitness-focused audience as Zero by providing a specialized, protein-only tracking experience.

MyFitnessPal

known forMyFitnessPal: Calorie Counter

1 app4.4Health & Fitness

MyFitnessPal serves the same health-conscious user base as Zero but provides a massive 20.5 million food database that acts as a primary source of truth for nutrition tracking.

Next Vision

known forCalo: AI Food Calorie Counter

1 app4.7Health & Fitness

Calo serves the same weight-management audience as Zero by combining traditional tracking with AI-powered image recognition.

Noom

known forNoom Weight Loss, Food Tracker

1 app4.7Health & Fitness

Noom targets the same weight-loss demographic as Zero but shifts the focus toward behavioral psychology and clinical GLP-1 programs.

NutraTech

known forCalorie Counter +

1 app4.4Health & Fitness

Calorie Counter + provides a similar nutritional tracking utility to Zero, focusing on verified food data and flexible goal setting.

Prometheus Interactive

known forProtein Tracker & Calculator

1 app4.1Health & Fitness

ProtX targets the same body-composition-focused users as Zero by combining manual logging with AI-powered protein estimation.

QR & Barcode Scanner

known forWater Tracker: Water Reminder

1 app4.8Health & Fitness

Tracks hydration levels, which is a critical component of maintaining health during fasting periods.

Ringtones

known forNutritrack - Nutrition Tracker

1 app3.5Health & Fitness

Nutritrack targets the same health-conscious demographic as Zero but focuses on granular micronutrient and vitamin monitoring.

Simple Design

known forPeriod Calendar Period Tracker

2 apps4.9Health & Fitness

Tracks reproductive health data that users often monitor alongside fasting cycles.

Simple.Life Apps

known forSimple・AI Weight Loss & Health

1 app4.5Health & Fitness

Simple・AI Weight Loss & Health targets the same demographic as Zero by offering personalized plans and real-time nutrition guidance without strict calorie counting.

Stronger By Science Technologies

known forMacroFactor - Macro Tracker

2 apps4.8Health & Fitness

MacroFactor serves the same data-driven audience as Zero but offers a more precise metabolic tracking experience through its dynamic expenditure algorithm.

Ten Labs

known forProtein Tracker: Protein Pal

1 app4.7Health & Fitness

Protein Pal targets the same fitness-focused users as Zero by providing a dedicated interface for monitoring protein consumption.

Viral Development

known forCal AI - Calorie Tracker

2 apps4.8Health & Fitness

Simplifies calorie and macro tracking for users who want to monitor intake during eating windows.

New entrants(2)

Adelyons Software

known forProtein Only: Intake Tracker

1 app5.0Health & Fitness

Protein Only serves the same fitness-focused audience as Zero by providing a simplified, single-dial interface for tracking protein goals.

AGS-Stiftung

known forAI Calorie & Nutrition Tracker

1 app0.0Health & Fitness

Provides nutrition logging tools for users who want to manage their intake during non-fasting windows.

The Analyst's Read

The bottom line on Zero Longevity Science

Bottom line

Zero Longevity Science is a focused niche leader that has successfully parlayed a simple fasting timer into a high-grossing health platform. Their ability to integrate complex nutritional data like protein scores into a habit-tracking UX remains their primary competitive advantage.

Frequently asked questions

How many apps does Zero Longevity Science publish?
Zero Longevity Science has 3 apps tracked by Marlvel, primarily in the Health & Fitness category.
What kind of apps does Zero Longevity Science make?
Zero Longevity Science's portfolio is concentrated in Health & Fitness, with an average rating of 4.3/5 across rated apps.
What is Zero Longevity Science's top app?
By review volume across the portfolio, Zero: Fasting & Food Tracker is Zero Longevity Science's best-known app tracked by Marlvel.
In how many countries are Zero Longevity Science's apps available?
Marlvel has tracked Zero Longevity Science's apps across 14 countries.

What fed this analysis

Apps analyzed:
2
With full intel:
1
With overview:
2
Website scraped:
yes
Social presence:
yes

Disclosure: Independent intel to help mobile builders succeed.

AI-powered analysis with automated quality gates, built from publicly available sources. Marlvel.ai is not affiliated with, endorsed by, or sponsored by Zero Longevity Science, its developer, the app publisher, Apple, or Google Play. All trademarks, logos, and screenshots referenced remain the property of their respective owners.

Cite this report

Marlvel.ai. “Zero Longevity Science intelligence.” Updated 2026-04-24. https://marlvel.ai/publishers/zero-longevity-science-inc

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Data licensed under CC-BY-NC 4.0