TLevels vs Eye Exercise
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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/
Eye Exercise
This app uses real-time eye tracking with TrueDepth technology to guide you through short daily eye exercises. Reduce screen fatigue and build healthier screen habits with guided routines and blink training. Track your progress and maintain streaks with a clean, distraction-free interface.
- Real-time eye tracking
- Guided eye movement exercises
- Daily screen break routines
- Blink training
- Workout history and streak tracking
- On-device camera processing
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OneEye helps you take mindful breaks from screens with guided eye exercises powered by real-time eye tracking. Using Apple’s TrueDepth camera and AR face tracking technology, OneEye guides your eye movements during short daily routines designed to help reduce screen fatigue and encourage healthier screen habits. Whether you spend hours working, studying, or scrolling, OneEye makes it easy to give your eyes a few minutes of care each day. Features: • Real-time eye tracking with TrueDepth technology • Guided eye movement exercises • Quick daily routines and screen breaks • Blink training and relaxation exercises • Workout history and streak tracking • Clean, simple, distraction-free design Perfect for: • Office workers • Students • Gamers • Anyone spending long hours on screens Privacy-focused by design: • Camera processing happens entirely on-device • No eye tracking or camera data is stored or shared Privacy Policy: https://robzapps.com/privacy Terms of Use: https://robzapps.com/terms
Screenshots
Verdict
TLevels and Eye Exercise are too close to call on the numbers: across 10 compared parameters — price, rating, review sentiment and ratings volume among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. TLevels sells 2 in-app purchases, starting at $24.99 per month and Eye Exercise sells 3 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for TLevels against 5.0 for Eye Exercise. Both are backed by a comparable volume of ratings — 11 and 5 respectively. Written reviews split almost evenly too, at 100% and 100% positive.
TLevels ships an update every 5 days, Eye Exercise every 8 days. The most recent releases landed on September 10, 2026 and September 20, 2026 respectively.
| Parameter | TLevels | Eye Exercise |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (11 ratings) | 5.0 (5 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 11 — better | 5 |
| Update frequency | Every 5 days — better | Every 8 days |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Freemium |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.1 — better | 16 |
| Further details — not scored | ||
| Size | 53 MB | 42 MB |
| Age rating | 12+ | 4+ |
| Developer | ELIJAH KEITH SEARLES | Vignesh Viswanathan |
Customer experience
TLevels
Eye Exercise
In-app purchases
TLevels
- TLevels Pro3 Days trial$24.991 Month
- TLevels Pro — Yearly$149.991 Year
Eye Exercise
- Pro Monthly$3.991 Month
- Pro Yearly3 Days trial$19.991 Year
- OneEye Pro Lifetime$34.99









