Comparison

OpenNutriTracker vs Calidus

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

Head to head
About

OpenNutriTracker

This app offers a straightforward way to monitor your daily food intake and analyze nutritional information. It features a food diary, custom meal planning, and a barcode scanner for easy logging. Prioritizing user privacy, it provides a completely free and ad-free experience.

Highlights
  • Nutritional tracking
  • Food diary
  • Custom meal planning
  • Barcode scanner
  • Privacy focused
  • Open-source
Features
Read full description

OpenNutriTracker is an open-source mobile application designed to simplify nutritional tracking and management. Whether you are looking to improve your health, lose weight, or simply maintain a balanced diet, OpenNutriTracker provides a minimalistic interface to easily track and analyze your daily nutrition. - Nutritional Tracking: Easily log your meals and snacks, and access a vast database of food items and ingredients to get detailed nutritional information. - Food Diary: Maintain a comprehensive food diary to keep track of your daily food consumption, habits, and progress. - Custom Meals: Plan your meals in advance, create personalized meal plans, and optimize them according to your dietary goals. - Barcode Scanner: Scan barcodes on packaged food items to instantly retrieve their nutritional information. - Privacy Focused: OpenNutriTracker prioritizes the privacy its users. It does not collect or share any personal data without your consent. - No Subscription, In-App Purchases, or Ads: OpenNutriTracker is completely free to use, without any subscription fees, in-app purchases, or intrusive advertisements.

About

Calidus

Track your daily food intake, calories, and macros with a comprehensive food diary. Log meals, build custom recipes, monitor water and weight, and utilize fasting timers. Integrates with Apple Health for a holistic view of your health.

Highlights
  • Food logging with barcode scanning
  • Custom recipe builder
  • Water and weight tracking
  • Fasting timers and schedules
  • Apple Health integration
  • AI-powered recipe component drafting
Features
Read full description

A food diary that fits your everyday life. Log what you eat, review your portions and see your calories and macros together. Calidus brings food logging, recipes, water, weight and fasting into one app for iPhone and iPad. START WITH ONE FOOD Search for a food, scan a barcode or create a custom entry. Check the portion before adding it. Clear confirmation lets you know when your food is saved. MAKE REPEAT MEALS QUICKER Use recent foods, log a saved recipe or review yesterday’s meal before adding it to today. Change the portions or remove anything that is different. BUILD RECIPES YOUR WAY Save ingredients and preparation steps. Organize a recipe into reusable components, such as chicken and biscuits, and adjust each component separately. Choose how many portions you ate, including more than one portion of a single-serving recipe. Save a variation without replacing the original. DESCRIBE A RECIPE COMPONENT On supported devices with Apple Intelligence available, describe a component in your own words to draft its ingredients and preparation steps on your device. Review the matched foods and measurements before using the draft. Nutrition is calculated from the food records and portions you confirm. You can always enter and edit details manually. SEE YOUR DAY AT A GLANCE Energy rings show calories eaten, estimated calories burned and the difference between them. Track protein, carbohydrates, fat and other nutrients. Optional Apple Health access can bring activity into your calorie budget. BUILD HABITS AT YOUR PACE Log water and weight, review your diary and see a recap of your recent logging. Notifications are optional. Choose a daily meal reminder at a time that suits you; Calidus skips it when that meal is already logged. Edit it or turn it off whenever you like. FASTING, WHEN YOU CHOOSE Use fasting timers, schedules, widgets and Live Activities to follow a fast and review completed sessions. Fasting reminders are separate from your daily meal reminder. YOUR DIARY, YOUR CHOICE No app account is required. Your diary is stored on your device, with optional sync through your own iCloud account. Apple Health access is optional. Basic diary logging works offline; online food searches, barcode lookups, optional sync and sibling-app promotions may use the internet. Calidus has no subscription or in-app purchases. It may show promotions for other Maneo House apps. Calorie targets, energy expenditure and food nutrition are estimates. Review food matches, measurements and AI drafts, including ingredients relevant to your allergies or dietary needs. Calidus is a tracking tool, not medical advice.

Screenshots

OpenNutriTracker4 screens
Calidus4 screens

Verdict

The call

The clearest difference is rating: OpenNutriTracker at 4.3 against Calidus's 4.0. OpenNutriTracker also leads on ratings volume (15 vs 1) and iOS requirement (15.5 vs 17.0). 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

OpenNutriTracker holds the better App Store score, 4.3 against 4.0. That said, the two scores are not equally well evidenced: OpenNutriTracker has 15 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

OpenNutriTracker ships an update monthly, Calidus every 3 weeks. Both last shipped on October 25, 2026.

Scorecard3 real differences · 7 level
OpenNutriTracker versus Calidus: the parameters behind the verdict, then further details
ParameterOpenNutriTrackerCalidus
PriceFreeFree
Rating4.3 (15 ratings) — better4.0 (1 ratings)
Positive reviews68.0% of reviews—
Number of ratings15 — better1
Update frequencyMonthlyEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.5 — better17.0
Further details — not scored
Size38 MB13 MB
Age rating4+4+
DeveloperSimon OppowaMANEO HOUSE LC

Customer experience

OpenNutriTracker

All ratings15 ratings
Positive80.0%
Neutral13.3%
Negative6.7%
Written reviews25 reviews
Positive68.0%
Neutral24.0%
Negative8.0%

Calidus

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

OpenNutriTracker

No in-app purchases

None

Calidus

No in-app purchases

Questions

Is OpenNutriTracker free?
OpenNutriTracker is free to download, with no in-app purchases.
Is Calidus free?
Calidus is free to download, with no in-app purchases.
Which has better reviews, OpenNutriTracker or Calidus?
OpenNutriTracker is rated higher. OpenNutriTracker averages 4.3 out of 5 from 15 ratings, while Calidus averages 4.0 from 1 ratings.
Do OpenNutriTracker or Calidus have ads?
Neither OpenNutriTracker nor Calidus shows ads.
Which is updated more often, OpenNutriTracker or Calidus?
OpenNutriTracker ships an update monthly, and Calidus every 3 weeks. Most recently, OpenNutriTracker was updated on October 25, 2026 and Calidus on October 25, 2026.

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