Testosterone Tracker vs Ester
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Testosterone Tracker
This app helps you meticulously track your prescribed Testosterone Replacement Therapy (TRT). Log doses, set reminders, record lab results, and manage appointments. It offers flexible scheduling for various administration methods and provides a clinician visit brief.
- Dose tracking and reminders
- Flexible administration scheduling
- Lab result logging and analysis
- Clinician visit brief generation
- Appointment and prescription management
- Data backup and CSV export/import
- Apple Health import
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Track your prescribed TRT for free โ doses, reminders, injection sites and lab results. No account. Your health records stay on your device. Testosterone first, plus the other medications in your prescription, such as hCG. Up to 3 active protocols are free. FLEXIBLE SCHEDULES Injections, gels, creams, patches, oral, nasal, buccal or pellets, as a named product or a custom one. Several times a day, chosen weekdays, exact intervals such as 84 hours, or long intervals with loading doses. Enter the syringe units your prescriber or pharmacist gave you; they show on your doses and reminders. Your injection-site history makes rotation easy. REMINDERS THAT KEEP GOING Dose reminders run as long as your protocol does. A missed dose gets a nudge, and the daily check-in reminder stays quiet on days you've logged. LABS AND A VISIT BRIEF Unlimited lab results with units, lab reference ranges, draw timing and comparability notes. An illustrative testosterone level estimate based on population data, for supported products. A clinician visit brief as a PDF. CARE RECORDS Appointments, prescriptions and refills, travel preparation, weekly check-ins and supply tracking. BACKUP AND CSV Back up and restore with Files or iCloud Drive. CSV export, and CSV import of past doses and labs. Optional, read-only Apple Health import. WIDGETS, LIVE ACTIVITY AND SIRI Your next dose on the Home Screen and Lock Screen. Ask Siri when it's due, or log it by voice. TRT AI PRO โข A level curve calibrated to your own blood tests (an estimate: bloodwork is the truth) โข Lab report import from a photo or PDF, read on your device; you confirm every value โข 30-day, 90-day and all-time trends with correlation reads โข The full weekly report and PDF โข A clean clinician brief, without the watermark โข More than 3 active protocols TRT AI is for personal organization and self-tracking. It does not recommend, adjust or calculate doses, diagnose conditions or give medical advice. Follow your clinician's prescription and ask them about treatment decisions. Pro is an optional monthly or yearly subscription. New subscribers get a 7-day free trial on the yearly plan. Payment is charged to your Apple ID when you confirm the purchase, or when the trial ends. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel them in your Apple ID settings. Prices vary by country. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://trtai.app/privacy/ Terms of Service: https://trtai.app/terms/ Support: https://trtai.app/support/
Ester
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Ester is a private tracker for physician-prescribed hormone and peptide therapy - TRT, GLP-1 medications, and other injectable or oral treatments. Log doses in two taps, see estimated medication levels, keep your lab work in context, and watch your real progress. START WITH 7 DAYS FREE Every feature is included with an Ester Pro subscription, and new subscribers get a 7-day free trial. EVERYTHING STAYS ON YOUR DEVICE No account. No server. No analytics. Your data never leaves your phone - we could not hand it over if we wanted to. Lock the app with Face ID and choose a discreet home-screen icon. LOG IN TWO TAPS A daily checklist with reminders, streaks, and injection-site rotation history. Vial inventory tracks what you have on hand, how much is left, and when you'll run out. ESTIMATED LEVELS A levels chart estimates active medication from the doses you log, using published half-life values. Solid past, projected future, a steady-state badge - and a washout view when a treatment period ends. LABS IN CONTEXT Record blood panels with editable reference ranges. Trends show every marker against your treatment timeline, and values outside your reference range are flagged. RECEIPTS FOR YOUR PROTOCOL Report cards summarize each treatment period: weight, body composition, strength, lab changes, and adherence. Compare periods side by side and share progress cards with medication names hidden by default. ESTER NEVER GIVES ADVICE Ester tracks and visualizes data you enter. It does not recommend medications, doses, or schedules, and it is not a substitute for medical care. Always consult your physician. Ester requires an auto-renewing Ester Pro subscription ($4.99/month or $29.99/year). New subscribers get a 7-day free trial. Subscriptions renew unless cancelled in your App Store settings. Your data stays on your device even if your subscription ends. Terms: https://castanedanetworks.com/ester/terms Privacy: https://castanedanetworks.com/ester/privacy
Screenshots
Verdict
Testosterone Tracker and Ester are too close to call on the numbers: across 5 compared parameters โ price, ads, in-app purchases and device support among them โ neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Testosterone Tracker sells 3 in-app purchases, starting at $4.99 per month and Ester sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
| Parameter | Testosterone Tracker | Ester |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | โ |
| Update frequency | Every 2 weeks | โ |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | โ |
| Devices | iPhone, iPad โ better | iPhone |
| Requires iOS | 18.0 | 18.0 |
| Further details โ not scored | ||
| Size | 58 MB | 3 MB |
| Age rating | 17+ | 12+ |
| Developer | Ludovic PUAUD | Castaneda Networks LLC |
In-app purchases
Testosterone Tracker
- Pro Monthly$4.991 Month
- Pro Yearly7 Days trial$34.991 Year
- Pro Yearly1 Year trial$34.991 Year
Ester
- Ester Pro7 Days trial$4.991 Month
- Ester Pro7 Days trial$29.991 Year








