Comparison

BiteFit Pro vs Stackr

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

Head to head
About

BiteFit Pro

Instantly estimate calories, protein, carbs, and fat by simply taking a photo of your meal. Access a vast, verified food database and a clean diary to track your progress effortlessly. Syncs with Apple Health.

Highlights
  • AI photo scanning for instant macro estimates
  • Trusted food database with millions of USDA-verified foods
  • Fast and clean daily diary
  • Weight tracking and progress visualization
  • Apple Health sync
  • Offline diary access
Features
Read full description

Built for your GLP-1 journey. Losing weight on Ozempic, Wegovy, Mounjaro, or Zepbound is a different game: your appetite is smaller, every bite counts, and protein — not calories — is the number that protects your muscle while the scale drops. Generic calorie counters weren't built for that. BiteFit is. Protein-First Tracking Your dashboard leads with the number that matters on a GLP-1: protein. BiteFit sets a lean-mass-protecting protein target from your body weight and shows you exactly how to hit it — even on low-appetite days. Weekly Dose Reminders Tell BiteFit your injection day and it reminds you every week — and knows appetite often dips in the days after, so your coaching adjusts. Side-Effect Log Nausea, early fullness, low appetite, fatigue — log how you feel in one tap, right in your food diary. See how symptoms track with your injection day and eating patterns over time. AI Coaching That Knows You're on a GLP-1 BiteFit's AI reads your week — food, protein, symptoms — and gives advice made for GLP-1 life: smaller nutrient-dense meals, stomach-friendly protein ideas when nausea hits, fiber and hydration nudges for the side effects nobody warns you about. Snap Any Meal Take a photo and BiteFit's AI identifies the food and estimates every macro in seconds. Millions of Foods + Barcode Scanner Search verified data from FatSecret and USDA, or scan a barcode for instant packaged-food nutrition. Apple Health Sync Meals and weigh-ins sync automatically, keeping your whole health picture in one place. Not on a GLP-1? BiteFit still works beautifully as a full calorie, macro, and weight tracker — with AI photo logging, meal templates, streaks, and weekly insights. Try free for 7 days. Full access, no credit card required. Then just $4.99/month or $39.99/year. BiteFit is a food and wellness tracker, not medical advice. Always follow your prescriber's instructions.

About

Stackr

This app simplifies tracking peptide and GLP-1 doses, including supplies like vials and pens. It offers smart reminders, home screen widgets, and visual charts of estimated active levels based on half-life. Designed for users managing peptide protocols, it keeps your dosing information organized and accessible.

Highlights
  • Log peptide and GLP-1 doses
  • Track vials, pens, and other supplies
  • Smart reminders for next doses
  • Home screen widgets
  • Estimated active level charts
  • Multi-peptide stack tracking
  • Reference pages for common compounds
Features
Read full description

Stackr is the all-in-one tracker for your peptide and GLP-1 protocol. Every dose, vial and meal in one place, with the math done for you. KEY FEATURES • Dose tracking and reminders Log a dose in seconds from your Home screen. Run daily, weekly, every-few-days or specific-day schedules, and several protocols at once. Reminders make sure you never miss a dose, and Home Screen widgets show what's next. • Dose calculator Enter your vial strength, water and dose, and see exactly how many units to draw on a U-100 or U-40 syringe. Works in mcg, mg, IU and units. • Supplies and vials Track vials, pens and other supplies. Stackr counts down what's left every time you log and warns you before you run out. • Progress Keep your weight, progress photos and dose history together, with a calendar of taken and missed doses and estimated active levels from your logs. • Food and calories Snap a meal, scan a barcode, search a food or just say what you ate. Stackr tracks calories and protein against your daily plan. • Stackr Coach Ask the AI coach questions about your routine and your meals, any time. • Learn Reference pages for semaglutide, tirzepatide, retatrutide, BPC-157, TB-500, GHK-Cu and 100+ more, with research status and sources. WHY STACKR • Built for GLP-1s and peptides, from one weekly shot to a full stack • Pounds or kilograms, mcg or mg, U-100 or U-40 • Syncs across your devices when you sign in • Message the team directly from Settings Stackr is a personal tracking and educational app. It does not give medical advice, prescribe treatments or tell you which peptide, dose or schedule is right for you. Always talk to a qualified healthcare professional. Active levels and photo-based nutrition values are estimates. SUBSCRIPTION Stackr is free to download. Full access requires a paid Stackr+ subscription. Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel your subscription in your Apple Account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://getstackr.app/privacy

Screenshots

BiteFit Pro4 screens
Stackr4 screens

Verdict

The call

The clearest difference is rating: BiteFit Pro at 5.0 against Stackr's 4.4. BiteFit Pro also leads on review sentiment (100% vs 68%) and iOS requirement (15.1 vs 17.0). Stackr's advantage is ratings volume (202 vs 2) and update cadence (weekly vs every 3 weeks). On price, ads, in-app purchases and monetization model 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. BiteFit Pro sells 2 in-app purchases, starting at $4.99 per month and Stackr sells 7 in-app purchases, starting at $7.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

BiteFit Pro holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Stackr has 202 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of BiteFit Pro's written reviews are positive against 68% of Stackr's.

UpkeepUpdate frequency

BiteFit Pro ships an update every 3 weeks, Stackr weekly. The most recent releases landed on October 31, 2026 and November 2, 2026 respectively.

Scorecard6 real differences · 5 level
BiteFit Pro versus Stackr: the parameters behind the verdict, then further details
ParameterBiteFit ProStackr
PriceFreeFree
Rating5.0 (2 ratings) — better4.4 (202 ratings)
Positive reviews100.0% of reviews — better67.6% of reviews
Number of ratings2202 — better
Update frequencyEvery 3 weeksWeekly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
Best chart rank—#195 — better
DevicesiPhone, iPod — betteriPhone
Requires iOS15.1 — better17.0
Further details — not scored
Size53 MB88 MB
Age rating4+12+
DeveloperDrone AlphaStackr Holdings LLC

Customer experience

BiteFit Pro

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Stackr

All ratings198 ratings
Positive86.9%
Neutral1.0%
Negative12.1%
Written reviews34 reviews
Positive67.6%
Neutral2.9%
Negative29.4%

In-app purchases

2 purchases

BiteFit Pro

Subscriptions2
  • BiteFit Pro Monthly7 Days trial$4.991 Month
  • BiteFit Pro Annual7 Days trial$39.991 Year
7 purchases

Stackr

Subscriptions7
  • Stackr+ Weekly$7.997 Days
  • Monthly$12.991 Month
  • Stackr+ Yearly$29.991 Year
Show 4 more
  • Stackr+ Yearly$49.991 Year
  • Stackr+ Yearly3 Days trial$49.991 Year
  • Stackr+ Yearly$59.991 Year
  • Yearly3 Days trial$69.991 Year

Questions

Is BiteFit Pro free?
BiteFit Pro is free to download, with in-app purchases available.
Is Stackr free?
Stackr is free to download, with in-app purchases available.
Which has better reviews, BiteFit Pro or Stackr?
BiteFit Pro is rated higher. BiteFit Pro averages 5.0 out of 5 from 2 ratings, while Stackr averages 4.4 from 202 ratings.
Do BiteFit Pro or Stackr have ads?
Neither BiteFit Pro nor Stackr shows ads.
Which is updated more often, BiteFit Pro or Stackr?
BiteFit Pro ships an update every 3 weeks, and Stackr weekly. Most recently, BiteFit Pro was updated on October 31, 2026 and Stackr on November 2, 2026.

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