Comparison

TLevels vs Cozy

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

Head to head
About

TLevels

This app provides real-time insights into TRT and peptide protocols, including serum modeling, symptom tracking, and AI-powered guidance. It offers a comprehensive peptide library and helps users understand their health data privately on their device.

Highlights
  • Serum modeling for testosterone levels
  • Symptom tracking and correlation
  • AI-powered peptide stacking guidance
  • Comprehensive 39-compound peptide library
  • Protocol tracking with reconstitution calculator
  • Lab result analysis and flagging
  • Progress tracking with gamification
Read full description

TLevels — TRT & Peptide Protocol Intelligence Most men on TRT are flying blind between appointments. TLevels gives you real-time visibility into your entire protocol — serum modeling, symptom tracking, peptide intelligence, and AI-powered stack guidance. Built for the details your clinic doesn't have time to track. YOUR DATA STAYS YOURS Everything lives on your device. No accounts. No cloud. No third parties ever see your health information. AI STACK ASSISTANT Ask anything about peptide stacking, cycles, synergies, and mechanisms. Powered by Gemini AI with evidence ratings, dosing protocols, and synergy maps across 39 compounds. 20 questions per day with Pro. PEPTIDE LIBRARY — 39 COMPOUNDS The most complete peptide reference on any platform. In-depth profiles for 39 compounds across 8 categories — Repair, GH/IGF, Neuro, Metabolic, Longevity, Immune, TRT Support, and Sexual. Includes GLP-1s (Semaglutide, Tirzepatide, Retatrutide), MK-677, Cerebrolysin, and more. Evidence ratings, mechanisms, risks, cycle planner, reconstitution calculator, and side-by-side comparison. PEPTIDE PROTOCOL TRACKER Track your full peptide stack alongside TRT. Log BPC-157, TB-500, Sermorelin, Ipamorelin and more. Built-in reconstitution calculator, synergy analysis, site rotation, cycle timeline, and benefit trend tracking. LIVE SERUM MODELING Track every injection and watch your active testosterone level decay in real time using pharmacokinetic modeling based on your specific ester, dose, and injection frequency. Know exactly where your T is at any moment — not just on lab day. SYMPTOM CORRELATION ENGINE Daily check-ins track energy, mood, libido, sleep quality, gym performance, anxiety, and water retention — then correlate them against your serum levels over time. Find the range where you personally feel best. PROGRESS TRACKER & GAINS ENGINE™ Log weight, body fat, strength PRs, blood pressure, and vitals. Earn XP and level up as you log — from Recruit to Apex. Weekly challenges, streak tracking, and trend charts. LAB INTELLIGENCE Import your bloodwork PDFs or enter values manually. TLevels flags out-of-range hematocrit, estradiol, PSA, and Total T against clinical reference ranges across 18 markers. TLEVELS PRO — $24.99/MONTH OR $149.99/YEAR Unlock the full intelligence layer: AI Stack Assistant, 39-compound Peptide Library, Dial-In Score™, symptom correlation engine, lab PDF import, smart supply inventory, peptide protocol tracker, and weekly performance grades. SUBSCRIPTION INFORMATION TLevels Pro — $24.99 USD per month TLevels Pro Yearly — $149.99 USD per year Subscription automatically renews unless cancelled at least 24 hours before the end of the current period Payment will be charged to your Apple ID account at confirmation of purchase Your account will be charged for renewal within 24 hours prior to the end of the current period Manage or cancel your subscription in your Apple ID Account Settings after purchase Cancellation takes effect at the end of the current billing period TLevels is a tracking and educational tool. It is not a medical device and does not provide medical advice. The AI Stack Assistant provides educational reference information only — not medical advice. Always consult your prescribing physician before making any changes to your protocol. Privacy Policy: https://elijah433.github.io/tlevels-privacy/Privacy-policy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Cozy

Track your moods and understand your emotional patterns with a virtual pet companion. This app offers a quick daily check-in, custom mood tracking, and optional heart rate variability insights to help you gain self-awareness.

Highlights
  • Gentle daily mood check-in
  • Virtual pet companion
  • HRV stress insights
  • Mindful home screen widget
  • Private by design local storage
  • Customizable mood symbols
Features
Read full description

A gentle daily ritual for your mind — mood tracking that feels like keeping company with a friend. Cozy turns the act of checking in with yourself into something soft and rewarding. Tap a face. Pick what touched you today. Watch your companion react. Over weeks and months, patterns emerge, your pet grows, and you start to understand yourself a little better. GENTLE MOOD TRACKING • Five-second daily check-in: pick a mood + the factors that mattered • Custom mood symbols & private factor categories • Add a free-form note when you want to say more • Today, week, month, and year views — see your story unfold YOUR COZY COMPANION • A friendly virtual pet on your home tab reflects your consistency • Default & Bear themes built in; more outfits unlock with Premium • Achievements celebrate your tracking streaks HRV STRESS INSIGHTS • Reads heart rate variability from Apple Health (read-only, optional) • Surfaces weekly & monthly stress trends, side-by-side with mood • Premium unlocks deep analysis: triggers, recovery patterns, advice MINDFUL HOME SCREEN • Add a Cozy widget to log a mood without opening the app • Pet state appears on your home screen — small reminder to check in PRIVATE BY DESIGN • All mood entries stored locally on your device • HealthKit access is read-only — Cozy never writes to Health • Optional encrypted iCloud sync (off by default) for cross-device users • Anonymous analytics only; no accounts, no ad tracking COZY PREMIUM • All pet themes & outfits • Deep HRV stress insights • Unlimited mood history • Custom mood symbols + advanced factors • Available as monthly, yearly, or one-time purchase Subscription auto-renews until canceled. Manage or cancel anytime in Settings → Apple ID → Subscriptions. Terms of Service: https://agentsmesh.app/products/cozy/terms Privacy Policy: https://agentsmesh.app/products/cozy/privacy End User License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

TLevels4 screens
Cozy4 screens

Verdict

The call

The clearest difference is ratings volume: TLevels at 11 against Cozy's 1. TLevels also leads on update cadence (every 5 days vs every 2 weeks) and device support (3 vs 1). On price, rating, 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. TLevels sells 2 in-app purchases, starting at $24.99 per month and Cozy sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for TLevels against 5.0 for Cozy. That said, the two scores are not equally well evidenced: TLevels has 11 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

TLevels ships an update every 5 days, Cozy every 2 weeks. The most recent releases landed on October 15, 2026 and October 28, 2026 respectively.

Scorecard4 real differences · 6 level
TLevels versus Cozy: the parameters behind the verdict, then further details
ParameterTLevelsCozy
PriceFreeFree
Rating5.0 (11 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings11 — better1
Update frequencyEvery 5 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.1 — better17.0
Further details — not scored
Size53 MB65 MB
Age rating12+4+
DeveloperELIJAH KEITH SEARLESSignalRender Technology Co., Ltd

Customer experience

TLevels

All ratings11 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Cozy

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

TLevels

Subscriptions2
  • TLevels Pro3 Days trial$24.991 Month
  • TLevels Pro — Yearly$149.991 Year
3 purchases

Cozy

Subscriptions2
  • Monthly$4.991 Month
  • Yearly7 Days trial$29.991 Year
One-time1
  • Lifetime Access$49.99

Questions

Is TLevels free?
TLevels is free to download, with in-app purchases available.
Is Cozy free?
Cozy is free to download, with in-app purchases available.
Which has better reviews, TLevels or Cozy?
TLevels and Cozy are both rated 5.0 out of 5 on the App Store, from 11 and 1 ratings respectively.
Do TLevels or Cozy have ads?
Neither TLevels nor Cozy shows ads.
Which is updated more often, TLevels or Cozy?
TLevels ships an update every 5 days, and Cozy every 2 weeks. Most recently, TLevels was updated on October 15, 2026 and Cozy on October 28, 2026.

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