Comparison

WeightSnap vs PeptideLab

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

Head to head
About

WeightSnap

Track your GLP-1 and peptide treatments with this comprehensive health companion. It automatically syncs with Apple Health, logs injections, and analyzes your body's response to optimize your journey. Visualize progress with photos and gain insights from an AI coach.

Highlights
  • Automatic Apple Health sync
  • GLP-1 & peptide dose tracking
  • Cycle pattern analysis
  • Reconstitution calculator
  • Daily check-ins & insights
  • Progress photos & comparisons
  • AI coaching with personality
Features
Read full description

Track your shot. See your patterns. Get the verdict. The only tracker built for GLP-1 and peptide protocols that does the work for you. Connect Apple Health and WeightSnap builds your picture automatically: weight, sleep, steps, calories, resting heart rate, workouts. Prefer to skip all that? Three taps a day (ate, moved, dose feel) power the same analytics, no Apple Health and no calorie counting required. Set your dosing schedule once and every dose is queued and ready, one tap to confirm. No account, no sign-in, nothing to remember. Your data stays on your phone. THE VERDICT The Doses tab opens with the answer: Building, Working, Steady, or Worth watching Every word backed by your own numbers: "Down 6.2 lbs over the last 28 days. Dose held strong 4 of 4 cycles." Receipts, not dashboards YOUR WHOLE PROTOCOL, ONE CARD Track retatrutide, tirzepatide, semaglutide, and any peptide, each with its schedule, cycle, and color Popular blends built in: log KLOW, GLOW, Wolverine and more as a single injection Vial inventory: doses left in the open vial, sealed vials on hand, supply dates Injection site rotation with abdomen quadrants, dose reminders, titration history RECONSTITUTION CALCULATOR Enter what's in your vial and how much BAC water you added See the exact units to draw for the amount you set, ready for a U-100 syringe Works with blends too STALL CHECK Trend flat for 3 weeks? Stall Check shows what else changed in the same window Movement, eating, sleep, time on dose, even your Earn It record, all counted against your usual No advice, just what changed. A pattern you can bring to your prescriber WEAR-OFF DETECTION (BETA) Your "fading" days mapped against your dose cycle "Food noise climbs from 2.5 to 5.2 in the last two days before your shot. Rose in 11 of 11 cycles." HOW'D TODAY GO? THREE TAPS A DAY Ate, moved, dose feel, compared to your usual. That's it No calorie counting required. Your feel report builds itself from the taps Or go deep: mood, food noise, energy, sleep quality, side effects, Apple Health imports EARN IT One honest question a day: did you earn it? Your answers build a wall you can see. Finish a short reset clean and it locks in gold Reminders with personality, in the voice you pick CYCLE PATTERN ANALYSIS See how mood, food noise, sleep, energy, and weight shift across each dose cycle Compare cycles at different amounts to see how titration is affecting you Interactive saturation chart with estimated levels, weight overlay, and a projected trendline PROGRESS PHOTOS & COMPARISONS Stunning before and after comparisons in seconds, your stats appear instantly Stickers, background removal, face blur, side-by-side video for sharing Time Machine plays your whole journey back as a slideshow TRACK MORE THAN WEIGHT Body measurements, body fat percentage, notes, goals, milestones AI insights with personality, built on your actual data Import your weight history from Apple Health PRIVACY FIRST No account and no sign-in, ever All data stored locally on your device Progress photos stay on your device unless you request an AI estimate Sync with Apple Health if you choose Whether you're on retatrutide, tirzepatide, semaglutide, or stacking peptides, WeightSnap is the only tracker that connects every shot to how you actually feel, and tells you what it sees. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://weightsnap.app/privacy/

About

PeptideLab

Track peptide, GLP-1, and HRT protocols with detailed logging and bloodwork analysis. Import lab reports and DEXA scans to visualize changes. Features an AI-powered food log for comprehensive health monitoring. Prioritizes user privacy with local-first data storage.

Highlights
  • Extensive compound database
  • Automated dose logging and titration
  • Reconstitution and draw-volume calculations
  • Lab report and DEXA scan import
  • AI-powered food logging
  • Local-first data privacy
  • Customizable reports
Features
Read full description

Serious tracking for peptides, GLP-1, TRT and HRT, with the bloodwork to see what actually changed. A precision instrument for people who run their own peptide, GLP-1, HRT and TRT protocols. Log a dose in a few taps or let scheduled protocols run on auto-pilot. See how much of each compound is in your system right now. Track a partner under the same roof, completely separately. Local-first and private. No efficacy claims, no gamification, no guilt. TRACK PROTOCOLS • The largest compound library in any tracker: peptides, GLP-1s, hormones and supplements • Dose logging in seconds, with titration schedules and cycle calendars • Injection-site rotation on a body map that counts every protocol you run, so a recently used site is marked before you pick it • Modeled Exposure: what's on board now, when your latest dose peaks, and where each blood draw fell on the curve • Adherence history and a verdict when a cycle ends CALCULATE • Eight calculators: dose and draw volume, BAC water, nasal spray, ester and pre-mixed oil, mix checker, half-life, steady state, daily burn • Transparent math. One tap turns a calculation into a protocol. KEEP INVENTORY • Vault: fridge, freezer and shelf zones, cap colors, and supply runway tied to your protocols • Photograph a kit's packing list to add vials in bulk; load a pen from a vial and keep the rest • Open what's known about a compound from the bottle itself TRACK YOUR HOUSEHOLD • Add a partner with their own protocols, logs, bloodwork and insights, kept separate, under one membership • One tap switches the whole app between people; a distinct color always shows whose data you're viewing • Reminders carry your partner's name; one shared Vault links vials to either person UNDERSTAND YOUR BLOODWORK • Import lab PDFs or photos; every value lands in a review queue where you confirm it before it counts • Trends across every report and every lab, units standardized, printed originals always preserved • Ranges shown are the ones printed on YOUR report. Optional Pro overlay: literature ranges, cited on screen, labeled educational • DEXA import: body fat, lean mass and more as baselines and trends • Doctor-Ready PDF: protocols, adherence, doses and labs in one document CONNECT YOUR BODY • Apple Health, Oura, WHOOP and Withings: sleep, HRV, resting heart rate and weight against your cycles • CGM glucose: time in range, and your glucose curve against your injections • A health score and biological age computed from your own labs LOG WHAT YOU EAT • AI food log: type or photograph a meal, review the estimate, correct it, approve. Nothing logs without your review. • One-tap repeat meals, recipes, unit conversion, and targets you set yourself PRIVATE BY DESIGN • Local-first: your data lives on your device, with optional encrypted cloud backup you control • Export as CSV anytime, free • No ads, no data sales, no social feed WHAT PEPTIDELAB IS NOT PeptideLab is a personal record-keeping and education tool. It is not a medical device and does not provide medical advice, diagnosis, or treatment. It never recommends, suggests, or adjusts doses, compounds, or protocols — every protocol in the app is one you enter yourself. Reference ranges displayed with your results are the ones printed on your own lab reports; optional educational ranges are cited to published literature and are clearly marked as non-diagnostic. Always consult a licensed clinician before you start, change, or stop any protocol or supplement. PeptideLab Pro (subscription) unlocks unlimited protocols, Modeled Exposure, the Lab Assistant, bloodwork trends and the Doctor-Ready PDF, Apple Health, Oura, WHOOP and Withings, CGM glucose reports, health score and DEXA body composition, household profiles, Food Log photos, protocol reports, and full history beyond 30 days. Core tracking, the calculators and CSV export are free, forever. Privacy Policy: https://peptidelabapp.com/privacy Terms of Use (EULA): https://peptidelabapp.com/terms

Screenshots

WeightSnap4 screens
PeptideLab4 screens

Verdict

The call

The clearest difference is update cadence: PeptideLab at daily against WeightSnap's weekly. PeptideLab also leads on iOS requirement (15.1 vs 17.6). WeightSnap's advantage is ratings volume (90 vs 26). On price, rating, review sentiment and ads 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. WeightSnap sells 3 in-app purchases, starting at $7.99 per month and PeptideLab sells 6 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

WeightSnap holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 90 and 26 respectively. Written reviews point the same way: 100% of WeightSnap's written reviews are positive against 95% of PeptideLab's.

UpkeepUpdate frequency

WeightSnap ships an update weekly, PeptideLab daily. The most recent releases landed on October 18, 2026 and October 20, 2026 respectively.

Scorecard3 real differences · 7 level
WeightSnap versus PeptideLab: the parameters behind the verdict, then further details
ParameterWeightSnapPeptideLab
PriceFreeFree
Rating5.0 (90 ratings) — better4.8 (26 ratings)
Positive reviews100.0% of reviews — better95.2% of reviews
Number of ratings90 — better26
Update frequencyWeeklyDaily — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhoneiPhone, iPod — better
Requires iOS17.615.1 — better
Further details — not scored
Size30 MB88 MB
Age rating4+17+
DeveloperTYLER LAWRENCE BROWNPeptide Labs LLC

Customer experience

WeightSnap

All ratings90 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews8 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

PeptideLab

All ratings26 ratings
Positive96.2%
Neutral0.0%
Negative3.8%
Written reviews21 reviews
Positive95.2%
Neutral0.0%
Negative4.8%

In-app purchases

3 purchases

WeightSnap

Subscriptions2
  • WeightSnap Premium (Monthly)$7.991 Month
  • WeightSnap Premium (Yearly)14 Days trial$34.991 Year
One-time1
  • WeightSnap Premium - Lifetime$69.99
6 purchases

PeptideLab

Subscriptions6
  • Weekly$4.997 Days
  • Monthly$9.991 Month
  • Pro Annual (Invite)7 Days trial$55.991 Year
Show 3 more
  • Pro Annual (Friend)7 Days trial$58.991 Year
  • Annual (Founding)1 Year trial$59.991 Year
  • Annual7 Days trial$69.991 Year

Questions

Is WeightSnap free?
WeightSnap is free to download, with in-app purchases available.
Is PeptideLab free?
PeptideLab is free to download, with in-app purchases available.
Which has better reviews, WeightSnap or PeptideLab?
WeightSnap is rated higher. WeightSnap averages 5.0 out of 5 from 90 ratings, while PeptideLab averages 4.8 from 26 ratings.
Do WeightSnap or PeptideLab have ads?
Neither WeightSnap nor PeptideLab shows ads.
Which is updated more often, WeightSnap or PeptideLab?
WeightSnap ships an update weekly, and PeptideLab daily. Most recently, WeightSnap was updated on October 18, 2026 and PeptideLab on October 20, 2026.

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