5 best calcium tracker apps and tools in 2026

How we selected and compared these calcium trackers

• The product must provide a practical way to record or review calcium intake, not merely publish a static food list.
• We checked official product pages and current store listings on October 23, 2026 for platform, logging methods, history, reports, privacy claims, and payment model.
• “Best” is assigned by use case. We did not convert store ratings into a made-up composite score or treat the largest feature list as automatically better.
• Prices and feature gates can vary by storefront and version, so the store page remains the source of truth before downloading.

The best calcium trackers by use case

Start with the use case in each heading. A focused tracker can be faster for daily calcium, while a general nutrition app can provide a much wider nutrient picture.

1. No. 1 · Focused iPhone and iPad workflow

   Bonely — best for a guided, calcium-focused iPhone routine

   Bonely combines a daily calcium log with a remaining-goal view, reviewed nutrition-label scanning, practical Assist suggestions, seven-day planning, reminders, history, reports, and widgets.

   • Log built-in or custom foods, adjust serving amounts, and correct calcium values when a package differs from the catalog.
   • Use the camera or a selected photo to read calcium and serving information, then review the result before saving.
   • Review up to 30 days of history and create a shareable PDF; use Assist, planning, reminders, and widgets for a more guided routine.
   • Core tracking is free to start, while advanced features are offered through in-app purchases.
   • Data is local by default with optional private iCloud backup; Apple’s privacy label separately lists purchases, identifiers, and usage data as data that may be linked to the user.

   Limitation: Bonely is intentionally narrower than a full nutrition tracker, and several planning, scanning, history, report, and widget features require Premium.

   Bonely on the Apple App Store How Bonely features work Bonely privacy policy

2. No. 2 · Dedicated tracker with no subscription

   Calcium Counter and Tracker — best for a one-time purchase and Apple Health

   First Line Medical Communications offers a dedicated iPhone and iPad calcium tracker with a one-off purchase, a built-in food database, barcode and search-based entry, long-term views, exports, and Apple Health sharing.

   • Record foods by barcode, dictation, search, favorites, or custom entries and recipes.
   • Display calcium by serving, target percentage, 100 grams, or one ounce, and compare foods inside the app.
   • Review daily and longer-term progress, export records, and share supported data with Apple Health.
   • Its App Store privacy label currently states that the developer does not collect data.

   Limitation: barcode-derived calcium depends on the product database and label. The developer notes that manufacturers outside the United States often do not list calcium, so manual or built-in database entry may be necessary.

   Calcium Counter and Tracker on the Apple App Store

3. No. 3 · General nutrition tracker

   Cronometer — best for calcium inside a full nutrient analysis

   Cronometer treats calcium as one part of a much broader food diary. Its free Basic account provides a large food database, barcode scanning, custom meals and recipes, and detailed vitamin and mineral tracking.

   • Track calcium alongside calories, macronutrients, vitamins, minerals, and many other nutrients and compounds.
   • Log by text search or barcode; supported photo and voice logging are presented as paid Gold features. Calcium appears in the Daily or Nutrition Report under minerals.
   • The free Basic tier includes the full food database, barcode scanning, custom meals and recipes, and a seven-day nutrition outlook.
   • Official guidance distinguishes detailed lab-analyzed entries from branded or barcode entries that may list fewer micronutrients.
   • An account is required. Cronometer says users can export or delete their data and that it does not sell personal data; storefront privacy labels describe additional collection and tracking practices.

   Limitation: calcium is one metric in a much larger system, an online account is required, and longer-range reports and advanced logging features require Gold.

   Cronometer food and nutrient tracking features Cronometer Basic account features

4. No. 4 · Small offline iPhone app

   Marrow — best for a minimalist offline calcium and sun log

   Marrow is a compact iPhone tracker centered on a daily calcium counter, 30 curated foods, sun-exposure minutes, and a 14-day history.

   • Log calcium foods from five categories and see progress toward the app’s daily goal.
   • Record sun-exposure minutes alongside the food log and review a color-coded 14-day chart.
   • See average intake, goal days, and per-day food details in the history experience.
   • The listing says the app works offline with no account and that the developer does not collect data.

   Limitation: the built-in library is deliberately small, the app is iPhone-only, and unlimited logging, history, and personalized targets are presented as Premium features.

   Marrow on the Apple App Store

5. No. 5 · Installable progressive web app

   My Calcium — best for an open-source web option

   My Calcium is an open-source progressive web app with USDA-based food data, barcode scanning, custom foods, goals, statistics, reports, CSV export, offline use, and optional encrypted synchronization.

   • Use it in a modern browser and install it as a PWA rather than downloading a native App Store app.
   • Search a curated food database, scan barcodes, save custom foods and favorites, and track a daily goal.
   • Review daily, weekly, and monthly statistics and create printable or CSV records.
   • Its official site publishes the source code and describes local-first storage with no account, analytics, or tracking; optional cross-device synchronization is described as end-to-end encrypted.

   Limitation: it is a web app rather than a native iPhone app, so platform integration and interface behavior differ from App Store products.

   My Calcium official site

How to choose the right calcium tracker

Choose Bonely or another dedicated tracker when the main job is a fast daily calcium total. Choose Cronometer when calcium needs to sit beside a much broader nutrient analysis. Choose an offline-first option when account-free local use matters more than planning or cross-feature guidance.

Before committing, check whether the app supports your preferred serving units, branded foods, custom values, history window, export format, and current iOS version. No tracker can turn incomplete food data into a precise medical assessment.

• Focused daily workflow: Bonely
• One-time purchase and Apple Health: Calcium Counter and Tracker
• Broad micronutrient analysis: Cronometer
• Minimal offline calcium and sun log: Marrow
• Open-source browser-based option: My Calcium

Frequently asked questions

Sources and editorial note

Bonely Editorial Team checked the claims on this page against the primary sources below on October 23, 2026.

• Bonely on the Apple App Store
• Bonely privacy policy
• Calcium Counter and Tracker on the Apple App Store
• Marrow on the Apple App Store
• Cronometer food-tracking features
• Cronometer data security
• My Calcium official site

This comparison is general product information, not medical advice. Features, compatibility, privacy labels, and payment options can change; verify the current official listing before choosing an app.