Cronometer vs Corvex

What Cronometer is actually built for

Most calorie trackers treat micronutrients as a footnote — a tab you open once and never return to. Cronometer inverts that. Its App Store listing describes tracking calories, protein, carbs, fat and fibre alongside support for 95+ vitamins and minerals, measured against personalised targets rather than a generic percentage bar.

The other half of the pitch is the catalogue. Cronometer describes a curated database of more than 1.1 million verified foods. That number looks small next to the tens of millions other apps advertise, and that is the point: it is smaller because entries are vetted rather than crowd-submitted. If you have ever picked the wrong "chicken breast" out of six near-identical results, you understand the trade.

What it costs, and what the free tier holds back

Cronometer is free to start. On the US App Store, its in-app purchases list Gold Monthly at US$10.99 and Gold Annual at US$59.99. Prices differ by region and promotion, so check the figure your own store shows rather than the one on any comparison page, including this one.

The more useful question is where the free line sits. Cronometer places photo and voice logging, the fasting tracker, the recipe importer, repeat items and an ad-free experience behind Gold.

• Repeat items — re-logging the meal you already ate on Tuesday — sits on the paid side. For most people that is the single most-used action in a tracker.
• The free tier carries ads. If ads are the reason you started looking, this is the relevant line, not the price.
• Everything else on the free tier is real. This is not a trial dressed up as a free plan.

Where Cronometer is clearly better

These are not concessions for balance. They are reasons to close this page and go subscribe.

• Micronutrient depth. Nothing in the design-led corner of this category comes close, and Corvex does not try to.
• Data quality. A vetted database is worth more than a vast one if you care whether the number is right.
• Device breadth. Its listing names Apple Health, Apple Watch, Fitbit, Garmin, Oura and Whoop among its syncs.
• Platform reach. Cronometer is on Google Play as well as the App Store. Corvex is iOS-only today, so if you are on Android this comparison ends here.
• Working with a professional. If a dietitian or clinician wants to see your intake, a nutrient-complete export is a better thing to hand over than a screenshot.

Where Corvex is different

Corvex starts from a different premise: that the limiting factor is not how much the app measures, but whether you still open it in week six.

• Four ways into a log — describe the meal in plain words, scan a barcode, pull from recents, or type macros by hand — from one sheet, one tap from every screen.
• Recents and saved meals are free. Repeating yesterday is the fastest path through a tracker and it should not be a paid tier.
• Weigh-ins roll into a trend line with start, current and target always visible, rather than a chart you go looking for.
• Macros as a share of the day with grams still to go, and fibre tracked alongside without being folded into the calorie maths.
• Share stickers for streaks, weight and macro days, built for Stories rather than for screenshotting.
• No ads on any tier. Premium adds longer history, advanced charts and the full sticker library.

Precision you will use beats precision you will not

There is an honest version of the accuracy argument that rarely gets made. A nutrient panel you fill in accurately three days a week tells you less than a rough calorie and weight log you keep for three months. Consistency of self-monitoring, not granularity, is the variable that keeps showing up in the research on weight management.

That is not an argument against Cronometer. It is an argument for being truthful with yourself about which app you will actually open on a Wednesday night. If the answer is the detailed one, use the detailed one — the depth is real and free to try.

So which should you pick?

Choose Cronometer if micronutrients are the reason you are tracking at all: a deficiency you are managing, a restricted diet you need to check for gaps, an athlete cutting weight, or a professional reviewing your intake. Choose it also if you are on Android.

Choose Corvex if you already know roughly how you want to eat, you want calories, macros and weight in one calm view, you want repeat logging free, and you want the app to be pleasant enough that opening it is not a decision.

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