Comparison

Calorie AI vs Protein Ring

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

Head to head
About

Calorie AI

Effortlessly track your food intake by simply taking a photo. Get instant calorie counts, macro breakdowns, and portion size estimates. Monitor your daily progress towards your goals with a clear visual journal.

Highlights
  • AI-powered photo food recognition
  • Calorie and macro breakdowns
  • Portion size estimation
  • Daily calorie and macro tracking
  • Historical food journal
  • Quick manual logging
  • Community food discovery
Features
Read full description

Snap it. Know it. Log it. Calorie AI turns a photo of your meal into an AI estimate of its calories, protein, carbs, and fat in seconds. No barcodes, no database digging, no weighing. THREE WAYS TO LOG - Scan a meal: photograph your plate, snack, or drink - Scan a label or menu: snap a nutrition facts panel, package, or menu item - Describe it: no photo? Type what you ate and get an estimate - Type it in: already know the numbers? Log them by hand, always free WHAT EVERY ESTIMATE GIVES YOU - A calorie estimate plus a likely range, never false precision - Protein, carbs, fat, and fiber on clean macro bars - Each item on the plate with its own portion and calories - What moves the number most: oil, dressing, sauces, portion size - Lighter options when you want the same meal for less - A plain note on how sure the estimate is YOUR TARGETS, YOUR DAY A quick setup calculates a daily calorie target and macro targets from your details using a standard energy formula. Watch the gauge fill as the day adds up, see what's left, and look back on any day in the calendar. FIX IT IN SECONDS Ate half the plate? Slide the portion and every number scales. Know the real count? Type it in. Pro members can also refine an estimate with AI by telling it what it missed, like "it was two slices" or "no dressing". AI DISCLAIMER Calorie AI uses AI. Calorie and nutrient figures are AI estimates for general information only. They can be wrong, and they are not medical, dietary, or weight-loss advice. Portion size, recipes, and hidden ingredients can shift the real numbers. The app cannot tell whether food is safe for allergies or intolerances. For personal guidance, talk to a registered dietitian or physician. Please take note of our AI Estimate Disclaimer: https://calorieai.com/disclaimer Find our EULA here: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Protein Ring

Features
Read full description

Protein Ring turns a plain sentence about what you ate into an honest protein number. Type what you actually ate, like "2 eggs, oats, and a protein shake". In seconds you see your protein, calories and the nutrients you're low on. Check the estimate, change what's wrong, and watch the ring fill. No photos, no barcodes, no food search. Key features: - A protein target sized from your goal, your training week and your body details, with Apple Health import if you want it. - Meal logging in your own words, typed or dictated. - Every estimate is shown for you to check before it counts. Change the words and it is estimated again. - Log again: repeat a meal you have had, with last time's estimate. - Insights over your last 28 days: how often protein reached its target, macros against your plan, and which nutrients fall short of the daily reference. - Apple Health, if you allow it: import body details, and add saved meals to Health. - Apple Watch: dictate a meal on your wrist and review it on your iPhone. - Home Screen and Lock Screen widgets, and a Live Activity while the estimate works. - At most one reminder a day, and only if you turn it on. The weekly and yearly plans renew until you cancel; Apple shows the price before you confirm. Estimates can be incomplete or wrong; you check them before they count. Protein Ring is for general wellness and is not medical advice. LEGAL & SUPPORT Privacy Policy: https://proteinring.com/privacy Terms of Service: https://proteinring.com/terms Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Support: https://proteinring.com/support

Screenshots

Calorie AI3 screens
Protein Ring4 screens

Verdict

The call

The clearest difference is in-app purchases: Calorie AI at none against Protein Ring's 2. Protein Ring's advantage is update cadence (every 2 weeks vs every 3 months). On price, ads, device support and iOS requirement 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. Protein Ring sells 2 in-app purchases, starting at $4.99 per 7 days. Calorie AI asks for nothing beyond the download.

UpkeepUpdate frequency

Calorie AI ships an update every 3 months, Protein Ring every 2 weeks. The most recent releases landed on October 6, 2026 and October 14, 2026 respectively.

Scorecard2 real differences · 7 level
Calorie AI versus Protein Ring: the parameters behind the verdict, then further details
ParameterCalorie AIProtein Ring
PriceFreeFree
Rating5.0 (3 ratings) — better—
Number of ratings3 — better—
Update frequencyEvery 3 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhoneiPhone, Apple Watch — better
Requires iOS17 — better18.0
Further details — not scored
Size19 MB25 MB
Age rating4+4+
DeveloperKawaiiTypedream LLP

In-app purchases

None

Calorie AI

No in-app purchases

2 purchases

Protein Ring

Subscriptions2
  • Protein Ring Weekly$4.997 Days
  • Protein Ring Yearly3 Days trial$39.991 Year

Questions

Is Calorie AI free?
Calorie AI is free to download, with no in-app purchases.
Is Protein Ring free?
Protein Ring is free to download, with in-app purchases available.
Do Calorie AI or Protein Ring have ads?
Neither Calorie AI nor Protein Ring shows ads.
Which is updated more often, Calorie AI or Protein Ring?
Calorie AI ships an update every 3 months, and Protein Ring every 2 weeks. Most recently, Calorie AI was updated on October 6, 2026 and Protein Ring on October 14, 2026.

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