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Zero alternatives: 5 apps ranked by verified data

Facts checked Nov 8, 2026AppBreakup editorialHow we rankAll intermittent fasting apps

Top picks

  • Fastic logo

    Best overall

    Fastic

    Free plan + paid

  • Lifesum logo

    Best free option

    Lifesum

    Free plan + paid

Common reasons people leave Zero: most insights and logging need the paid membership, and nutrition tracking is lighter than a dedicated calorie counter. We ranked 5 alternatives by how directly each one replaces Zero, then by reviews, real visits and how recently each app's facts were checked against its own website. Fastic currently ranks first.

Quick comparison

#AppPricingVerified priceOpen sourcePlatformsVerified factsScore
1Fastic logoFasticFree plan + paid—NoiOS, Android4 of 468.8
2Lifesum logoLifesumFree plan + paid—NoiOS, Android5 of 552.6
3Carb Manager logoCarb ManagerFree plan + paid$3.33 a month, billed annually (Premium)NoWeb, iOS, Android5 of 551.2
4Yazio logoYazioFree plan + paid—NoiOS, Android4 of 450.0
5MyFitnessPal logoMyFitnessPalFree plan + paid—NoiOS, Android, Web5 of 549.0
  1. Fastic logo

    1. FasticTop pick

    Best for: Fasting beginners who want a timer plus recipes, habit lessons and food tracking in one app

    Free plan + paidiOS, Android

    68.8

    score / 100

    Why switch from Zero

    Fasting timer plus a food scanner, recipes and an AI nutrition chatbot in one app.

    Pros

    • Combines fasting timer, food scanner, water and step tracking
    • Hundreds of recipes and short habit courses
    • AI chatbot for nutrition questions

    Cons

    • Many features sit behind the paid subscription
    • Busier than a plain fasting timer
    • Only English and German
    Visit Fastic Details and reviews
    How this score is calculated
    Editorial fit ×0.3100
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Fastic a good Zero alternative?

    Verified facts

    4 of 4 verified
    Downloads
    30M+
    Checked Nov 8, 2026fastic.com(opens source in a new tab)
    AI chatbot
    NutriChatBot
    Checked Nov 8, 2026fastic.com(opens source in a new tab)
    Recipes
    Hundreds
    Checked Nov 8, 2026fastic.com(opens source in a new tab)
    Trackers
    Water, food, steps, meals
    Checked Nov 8, 2026fastic.com(opens source in a new tab)
  2. Lifesum logo

    2. Lifesum

    Best for: People who want structured diet plans and recipes, not just a calorie number

    Free plan + paidiOS, Android

    52.6

    score / 100

    Why switch from Zero

    Full food tracker with diet plans and a built-in fasting tracker, for more detailed logging.

    Pros

    • Many ways to log food, including photo and voice
    • Diet programmes and meal plans for popular eating styles
    • Clean, friendly design with habit trackers for water and vegetables
    • Syncs with Apple Watch and Samsung Galaxy Watch

    Cons

    • Most meal plans and recipes sit behind Premium
    • No full web app for logging on a computer
    • Less detailed micronutrient tracking than specialist apps
    Visit Lifesum Details and reviews
    How this score is calculated
    Editorial fit ×0.346
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Lifesum a good Zero alternative?

    Verified facts

    5 of 5 verified
    Logging methods
    Photo, voice, text, barcode
    Checked Nov 8, 2026lifesum.com(opens source in a new tab)
    Diet plans
    High-protein, Mediterranean, fasting, keto
    Checked Nov 8, 2026lifesum.com(opens source in a new tab)
    Wearables
    Apple Watch, Samsung Galaxy Watch
    Checked Nov 8, 2026lifesum.com(opens source in a new tab)
    Users
    60 million+ (vendor figure)
    Checked Nov 8, 2026lifesum.com(opens source in a new tab)
    Company
    Lifesum AB
    Checked Nov 8, 2026lifesum.com(opens source in a new tab)
  3. Carb Manager logo

    3. Carb Manager

    Best for: Keto and low-carb dieters who want net-carb tracking and matching recipes

    Free plan + paidWeb, iOS, Android

    51.2

    score / 100

    Why switch from Zero

    Low-carb and keto tracker with a fasting timer, if you combine keto with fasting.

    Pros

    • Built around net carbs and keto macros
    • Huge low-carb recipe library, with more on Premium
    • Tracks ketones, glucose and fasting on Premium
    • Usable free Basic account, on web and mobile

    Cons

    • Meal plans, voice logging and device sync need Premium
    • Narrow focus is less useful outside low-carb diets
    • No monthly billing option for Premium
    Visit Carb Manager Details and reviews
    How this score is calculated
    Editorial fit ×0.341
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Carb Manager a good Zero alternative?

    Verified facts

    5 of 5 verified
    Free plan
    Yes (Basic account)
    Checked Nov 8, 2026carbmanager.com(opens source in a new tab)
    Starting price
    $3.33 a month, billed annually (Premium)
    Checked Nov 8, 2026carbmanager.com(opens source in a new tab)
    Device sync
    Fitbit, Garmin (Premium)
    Checked Nov 8, 2026carbmanager.com(opens source in a new tab)
    Ketone tracking
    Yes
    Checked Nov 8, 2026carbmanager.com(opens source in a new tab)
    Developer
    Wombat Apps LLC
    Checked Nov 8, 2026carbmanager.com(opens source in a new tab)
  4. Yazio logo

    4. Yazio

    Best for: People who want calorie counting and intermittent fasting in one app

    Free plan + paidiOS, Android

    50.0

    score / 100

    Why switch from Zero

    Calorie counter with a built-in intermittent fasting timer and plans, so food logging and fasting live in one app.

    Pros

    • Built-in intermittent fasting plans and timers
    • AI photo, barcode and manual food logging
    • 3,000+ recipes matched to goals

    Cons

    • Fasting plans and recipes need Yazio Pro
    • Frequent discount banners make pricing unclear
    • Less micronutrient detail than Cronometer
    Visit Yazio Details and reviews
    How this score is calculated
    Editorial fit ×0.338
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Yazio a good Zero alternative?

    Verified facts

    4 of 4 verified
    Fasting plans
    16:8, 5:2, 6:1 and more
    Checked Nov 8, 2026yazio.com(opens source in a new tab)
    Recipes
    3,000+
    Checked Nov 8, 2026yazio.com(opens source in a new tab)
    Users
    100M+
    Checked Nov 8, 2026yazio.com(opens source in a new tab)
    Food logging
    AI photo, barcode or manual
    Checked Nov 8, 2026yazio.com(opens source in a new tab)
  5. MyFitnessPal logo

    5. MyFitnessPal

    Best for: People who want the biggest food database and wide device sync for everyday calorie counting

    Free plan + paidiOS, Android, Web

    49.0

    score / 100

    Why switch from Zero

    Huge food database for logging meals alongside a fasting tracker, for people who want nutrition data too.

    Pros

    • Food database of over 20 million items, incl. restaurant dishes
    • Syncs with 40+ apps and devices
    • Photo and voice logging in Premium
    • Free tier covers basic food and weight tracking

    Cons

    • Barcode scanning needs Premium
    • Free version shows ads
    • User-added entries can be duplicated or inaccurate
    Visit MyFitnessPal Details and reviews
    How this score is calculated
    Editorial fit ×0.334
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.15100
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is MyFitnessPal a good Zero alternative?

    Verified facts

    5 of 5 verified
    Free plan
    Yes
    Checked Nov 8, 2026myfitnesspal.com(opens source in a new tab)
    Food database
    20.5M foods
    Checked Nov 8, 2026myfitnesspal.com(opens source in a new tab)
    Integrations
    40+ apps and devices
    Checked Nov 8, 2026myfitnesspal.com(opens source in a new tab)
    Free trial
    7 days for first-time Premium users
    Checked Nov 8, 2026myfitnesspal.com(opens source in a new tab)
    Premium logging tools
    Barcode Scan, Meal Scan, Voice Log
    Checked Nov 8, 2026myfitnesspal.com(opens source in a new tab)

The best Zero alternative for…

The highest-ranked app in this list for each need.

Fastic logo

Best Zero alternative for most people

Fastic

Fasting timer plus a food scanner, recipes and an AI nutrition chatbot in one app.

Lifesum logo

Best Zero alternative for a free plan you can upgrade

Lifesum

Full food tracker with diet plans and a built-in fasting tracker, for more detailed logging.

Carb Manager logo

Best Zero alternative for iPhone and Android

Carb Manager

Low-carb and keto tracker with a fasting timer, if you combine keto with fasting.

MyFitnessPal logo

Best Zero alternative for working in the browser

MyFitnessPal

Huge food database for logging meals alongside a fasting tracker, for people who want nutrition data too.

Zero alternatives: common questions

What is the best alternative to Zero?

Fastic ranks first right now. Fasting timer plus a food scanner, recipes and an AI nutrition chatbot in one app. Lifesum and Carb Manager follow it in our ranking.

Zero vs Fastic: what's the difference?

Both Zero and Fastic are free with paid plans. Both run on iOS and Android.

Is Zero free?

Zero is free with paid plans. Free trial: Yes. Checked on Zero's own site, November 2026.

Is there a free alternative to Zero?

Yes. Fastic (free plan + paid), Lifesum (free plan + paid), Carb Manager (free plan + paid) and Yazio (free plan + paid) have a free option. Check each app's verified facts for current plan limits.

Is there an open-source alternative to Zero?

None of the 5 alternatives in this list is open source.

Why do people switch from Zero?

The complaints we hear most: most insights and logging need the paid membership; nutrition tracking is lighter than a dedicated calorie counter; no web version.

How is this list ranked?

Every app is scored with the same published formula: how directly it replaces Zero, reviews (weighted by verification), visits from AppBreakup, how recently its facts were checked against its own website, and reader votes.