Comparison

PRO.TEIN vs Protein Only

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

Head to head
About

PRO.TEIN

Features
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You know you "should eat more protein" — but every day is a guess. You track in your head, lose count by dinner, and have no idea if you actually hit your number. PRO.TEIN fixes that in one motion: scan a barcode, protein gets logged, today's square fills in. WATCH YOUR MONTH FILL IN Your home screen is a continuous calendar heatmap — every day you've tracked, at a glance. Darker square, closer to goal. No spreadsheets, no math, just a record you can see. BUILD A STREAK YOU WON'T BREAK Consecutive days at goal become visible momentum. Once the chain is there, you don't want to be the one who breaks it. KNOW YOUR NUMBER IN SECONDS Scan any barcode and protein is logged automatically via Open Food Facts. No manual entry, no searching — just scan and go. STOP GUESSING, START PROGRESSING Consistent protein intake is what actually drives muscle gain and fat loss. PRO.TEIN turns "I think I'm doing okay" into a number you can trust, day after day. DESIGNED TO DISAPPEAR No clutter, no ads, no distractions — just a clean monochrome calendar and the food you ate. Built for people who train and want the protein to match the work. PRO.TEIN PLUS Free forever: daily logging, barcode scanning, current + previous month archive, home screen widget. Plus unlocks: full history archive, trends & insights, custom foods, custom calendar colours. Plus is offered as auto-renewing subscriptions (Weekly, Annual) or a one-time Lifetime purchase. Payment is charged to your Apple ID account at confirmation of purchase. Subscriptions auto-renew unless cancelled at least 24 hours before the end of the current period; manage or cancel anytime in your Apple ID account settings. Free trial: any unused portion of a free trial is forfeited when you purchase a subscription, where applicable. Privacy Policy: https://sirekapps.com/privacy Terms of Use: https://sirekapps.com/terms

About

Protein Only

Easily track your daily protein intake with a simple, visual interface. Focus on your protein goal without calorie counting or complex spreadsheets. Log meals in seconds with quick add, favorites, or barcode scanning.

Highlights
  • Visual protein goal ring
  • Quick logging (favorites, quick add)
  • Barcode scanning
  • Photo estimate for protein
  • Optional fiber tracking
  • Home screen widgets
  • Streaks and history
Features
Read full description

One number. One dial. Did you get your protein today? ProteinOnly is a protein tracker for people who do not want a food diary. No calorie counting. No macro spreadsheet. No guilt about your lunch. You set a daily protein goal in grams, and one big ring on the home screen fills as you eat. LOG IN TWO TAPS • Favorites — yesterday's chicken bowl is one tap away, today and every day • Quick add — type the grams straight in, or pick from a built-in list of common foods • Barcode — scan the package for protein per serving, then set your portion • Photo estimate — snap your plate and get an estimated protein range to confirm or nudge before it saves A GOAL THAT FITS YOU Enter your goal in grams, or let ProteinOnly work it out from your body weight. Presets cover the usual targets, including the higher protein goals that fit GLP-1 journeys and the 1.6 to 2.2 g/kg range active lifters use. It is guidance, not medical advice, and the number is always yours to change. GLP-1 MODE Switch on GLP-1 mode and your goal is sized to protect muscle while you lose weight: 1.2 to 1.6 g of protein per kg of your current or goal weight, the band a 2025 joint nutrition advisory proposes during active weight loss (cited in the app). With Pro, mark your shot day and how your appetite felt; if protein runs short two days in a row after a shot, the home screen says so, with easy ideas, and a monthly muscle-protection summary puts shot-week days next to the rest. Guidance only, never dosing advice. THE RING IS THE POINT The dial is the whole interface. Open the app and you know instantly where you are: grams so far, grams to go, and a satisfying fill on every log. Today's entries sit underneath, editable in a tap. STREAKS AND HISTORY A calendar heat view of the days you hit your goal, 7 and 30-day averages, and a streak worth protecting. Enough history to see a pattern, without turning into a diary you have to maintain. Missed a day? Step back and log it — a forgotten dinner won't break your streak. FIBER, IF YOU WANT IT Turn on an optional second ring for fiber and track it through exactly the same logging paths. Off by default, because one number is the promise. HOME SCREEN WIDGETS Put the ring on your home screen and log without opening the app. REMINDERS THAT SAY SOMETHING USEFUL Optional nudges: a morning start, and an evening check when there is still a gap ("38 g to go — what's for dinner?"). WHO IT IS FOR People eating less overall and wanting protein to stay high. Lifters who already know their number and are tired of logging three other macros to get it. Anyone who tried a full food tracker, lasted nine days, and quit. PRIVATE AND FAST Your log lives on your phone. There is no account and no sign-up. Photos are sent for an estimate only in the moment you ask for one, and are never stored on a server. FREE, AND HONESTLY FREE Manual logging, favorites, barcode scanning, the dial, streaks, and a week of history are free forever, plus 5 AI photo estimates to try. ProteinOnly Pro unlocks unlimited photo estimates, full history and the calendar heat view, GLP-1 shot-day tracking and the monthly summary, home screen widgets, the fiber ring, and reminder customization. Pro comes as an annual auto-renewing subscription that opens with a 7-day free trial, or as a monthly one. Prices are shown in your own currency before you buy. A subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period; manage or cancel any time in your App Store account settings. ProteinOnly is not a medical device and does not give medical advice. Talk to your doctor or dietitian about the protein target that is right for you. ProteinOnly is made by Adelyons Software LLC. Questions? dev@adelyons.com Terms of Use (EULA): https://adelyons.com/apps/proteinonly/eula.html Privacy Policy: https://adelyons.com/apps/proteinonly/privacy.html

Screenshots

PRO.TEIN4 screens
Protein Only4 screens

Verdict

The call

The clearest difference is device support: Protein Only at 3 against PRO.TEIN's 1. Protein Only also leads on iOS requirement (15.0 vs 26.0). 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. PRO.TEIN sells 4 in-app purchases, starting at $3.99 per 7 days and Protein Only sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

PRO.TEIN ships an update every 6 days, Protein Only every 5 days. The most recent releases landed on October 23, 2026 and October 29, 2026 respectively.

Scorecard2 real differences · 7 level
PRO.TEIN versus Protein Only: the parameters behind the verdict, then further details
ParameterPRO.TEINProtein Only
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 6 daysEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS26.015.0 — better
Further details — not scored
Size15 MB31 MB
Age rating4+4+
DeveloperPiotr SirekAdelyons Software LLC

In-app purchases

4 purchases

PRO.TEIN

Subscriptions3
  • PRO.TEIN Plus Weekly$3.997 Days
  • Plus Annual (Special Offer)$24.991 Year
  • PRO.TEIN Plus Annual7 Days trial$39.991 Year
One-time1
  • PRO.TEIN Lifetime$79.99
2 purchases

Protein Only

Subscriptions2
  • ProteinOnly Pro (Monthly)1 Month trial$3.991 Month
  • ProteinOnly Pro (Annual)7 Days trial$19.991 Year

Questions

Is PRO.TEIN free?
PRO.TEIN is free to download, with in-app purchases available.
Is Protein Only free?
Protein Only is free to download, with in-app purchases available.
Do PRO.TEIN or Protein Only have ads?
Neither PRO.TEIN nor Protein Only shows ads.
Which is updated more often, PRO.TEIN or Protein Only?
PRO.TEIN ships an update every 6 days, and Protein Only every 5 days. Most recently, PRO.TEIN was updated on October 23, 2026 and Protein Only on October 29, 2026.

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