Comparison

Calo vs nutrx

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

Head to head
About

Calo

This privacy-focused app helps you manage your nutrition and weight goals without requiring an account or internet connection. It offers effortless food logging, macro monitoring, and visual progress tracking, all while keeping your data securely on your device.

Highlights
  • 100% Private & Offline tracking
  • Effortless food and macro logging
  • Weight and progress management
  • Customizable goal setting
  • Data backup and restore
  • Multi-language support
Read full description

Take control of your nutrition journey with Calo, the privacy-first calorie tracker designed for simplicity and security. No accounts, no cloud servers, and no tracking—just you and your goals. Calo keeps your personal health data exactly where it belongs: on your device. Whether you want to lose weight, maintain it, or simply eat healthier, Calo provides the tools you need without compromising your privacy. KEY FEATURES: 100% Private & Offline No account signup required. Your data is stored locally on your device. Works perfectly without an internet connection. Effortless Tracking Smart Dashboard: See your daily calorie budget, consumed vs. burned calories, and remaining intake at a glance. Detailed Food Log: Track breakfast, lunch, dinner, and snacks with ease. Macro Monitoring: Keep an eye on your protein, carbs, and fat intake. Weight Weight & Progress Management Weight Log: Record your weight and body fat percentage. Visual Charts: Track your progress with beautiful weekly charts and weight trend lines. Goal Setting: Customize your activity level and weekly weight loss goals to get a personalized calorie budget. Your Data, In Your Control Backup & Restore: Easily export your data to a JSON file for safekeeping or transfer. Test Data Generator: (Optional: Handy for testing functionalities during development or demos). Global Support Fully localized in English, German, Spanish, French, Japanese, and Chinese.

About

nutrx

Track your daily vitamins, supplements, and nutrients with customizable goals and progress rings. Log intake with a tap, utilize Siri shortcuts, and view detailed statistics. Offers privacy-focused design with optional Pro features for supply management and health trends.

Highlights
  • Customizable nutrient tracking
  • Progress rings and daily score
  • One-tap logging with stacks
  • Siri and Shortcuts integration
  • Home Screen and Lock Screen widgets
  • Apple Watch app and complications
  • Optional Pro features for supply and trends
Features
Read full description

nutrx is a simple, private app for tracking the vitamins, supplements and nutrients you take every day. There's no preset list. You decide what to track — Vitamin D in IU, protein in grams, water in litres, caffeine in mg — and set your own goal for each: at least, at most, or a range. Log with a tap and watch your progress fill up through the day. Track at a glance • A day score shows how many goals you've met, your streak and your next reminder • Every nutrient gets a progress ring in its own colour and icon • + and − log one step; tap a nutrient to log an exact amount with a note Log faster • Stacks: log everything you take together, like your morning vitamins, in one tap • Siri and Shortcuts: "Log my Vitamin D with nutrx" or "Log my Morning stack with nutrx" • Export your whole log as a CSV file whenever you like See how you're doing • Hit rate, daily average and best day for the last 7, 30 or 90 days • A weekday pattern that shows the day you tend to miss • A month calendar of your history, with your current and best streak Wherever you are • Home Screen and Lock Screen widgets, with one-tap logging • An Apple Watch app and complications • Reminders for each nutrient that go quiet once you've logged it • iCloud sync across your iPhone, iPad and Apple Watch Private by design nutrx has no account, no ads, no analytics and no servers of its own. Your data lives on your devices and in your own private iCloud, and you can turn sync off any time. nutrx never sees it. nutrx Pro (optional) Everything above is free and stays free. nutrx Pro adds a few things around tracking: • Supply & refills — see how many days are left in a bottle and what it costs a month, get one reminder before it runs out, and add it to your shopping list • Courses — take something for a set time ("for 5 days", "until 24 Oct"): after the last day it leaves Today, its reminders stop, and your streak isn't affected • Schedules — take something on set weekdays, every few days, on and off, or a few times a week; a day it isn't due never counts as missed • Scan a label — point the camera at the Supplement Facts and the new nutrient fills itself in • Weekly recap — a short summary of your week, every Sunday evening • Trends with Apple Health — how your intake lines up with your sleep, workouts and active energy. nutrx only reads from Health, and nothing it reads is stored or synced • Report for your doctor — a clean PDF of any period: goals, daily totals, hit rates and your notes • Widgets and controls — log a stack or a nutrient from Control Center, the Lock Screen or the Action button, and see one nutrient, or what's running low, on your Home and Lock Screens Labels and recaps are read and written on your iPhone, with Apple Intelligence where available. Nothing is uploaded. nutrx never recommends amounts; your goals are always yours to set. nutrx Pro is a monthly or yearly subscription (the yearly plan starts with a free week) or a one-time lifetime purchase. Payment is charged to your Apple Account. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period, and you can manage or cancel them in your App Store account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://nutrx-labs.com/privacy.html Track what you take. Nothing else.

Screenshots

Calo4 screens
nutrx4 screens

Verdict

The call

The clearest difference is rating: nutrx at 5.0 against Calo's 2.0. nutrx also leads on update cadence (every 2 days vs every 8 days). Calo's advantage is in-app purchases (none vs 3) and iOS requirement (15.1 vs 26.0). On price, ratings volume, ads and device support 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. nutrx sells 3 in-app purchases, starting at $1.99 per month. Calo asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

nutrx holds the better App Store score, 5.0 against 2.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Calo ships an update every 8 days, nutrx every 2 days. Both last shipped on October 31, 2026.

Scorecard5 real differences · 4 level
Calo versus nutrx: the parameters behind the verdict, then further details
ParameterCalonutrx
PriceFreeFree
Rating2.0 (1 ratings)5.0 (1 ratings) — better
Number of ratings11
Update frequencyEvery 8 daysEvery 2 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPodiPhone, iPad, Apple Watch — better
Requires iOS15.1 — better26.0
Further details — not scored
Size30 MB9 MB
Age rating17+4+
Developersun fangALEXANDRU &TURCAN

In-app purchases

None

Calo

No in-app purchases

3 purchases

nutrx

Subscriptions2
  • nutrx Pro Monthly$1.991 Month
  • nutrx Pro Yearly7 Days trial$14.991 Year
One-time1
  • nutrx Pro Lifetime$29.99

Questions

Is Calo free?
Calo is free to download, with no in-app purchases.
Is nutrx free?
nutrx is free to download, with in-app purchases available.
Which has better reviews, Calo or nutrx?
nutrx is rated higher. Calo averages 2.0 out of 5 from 1 ratings, while nutrx averages 5.0 from 1 ratings.
Do Calo or nutrx have ads?
Neither Calo nor nutrx shows ads.
Which is updated more often, Calo or nutrx?
Calo ships an update every 8 days, and nutrx every 2 days. Most recently, Calo was updated on October 31, 2026 and nutrx on October 31, 2026.

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