Bio vs TRT Tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bio
This medical tool calculates bioavailable and free testosterone levels using total testosterone, SHBG, and albumin. It's based on a published algorithm and is designed for use by qualified healthcare professionals.
- Calculates bioavailable testosterone
- Calculates free testosterone
- Uses total testosterone, SHBG, and albumin
- Based on published algorithm
- Intended for healthcare professionals
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The Bioavailable Testosterone calculator calculates bioavailable and free testosterone from total testosterone, sex hormone binding globulin (SHBG) and albumin. It is intended to be used by qualified healthcare professionals. The application is an adaptation of the algorithm published in Vermeulen A, Verdonck L, Kaufman JM: A Critical Evaluation of Simple Methods for the Estimation of Free Testosterone in Serum, J. Clin. Endocrinol. Metab. Oct 1, 1999; 84: 3666-3672.
TRT Tracker
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Take control of your testosterone replacement therapy. TRT Tracker is the simplest way to log every injection, stay on schedule, and see how your hormones — and how you feel — change over time. Private, beautifully designed, and built for light and dark mode. Whether you inject testosterone cypionate or enanthate, run HCG or an AI alongside it, or microdose subcutaneously, TRT Tracker keeps your whole protocol in one place. LOG INJECTIONS IN SECONDS • Record dose, compound, site and time with a tap • Intramuscular or subcutaneous — any ester or compound • Full history grouped by day, editable anytime SMART INJECTION SITE ROTATION • Visual body map of every site • Automatic “inject here next” suggestion to help avoid scar tissue • See at a glance which sites need a rest NEVER MISS A DOSE • Build your protocol — twice weekly, every other day, daily or weekly • Smart reminders before every shot • Weekly dose totals and adherence at a glance BLOODWORK & LAB TRACKING • Track testosterone, free T, estradiol, SHBG, hematocrit, PSA and 20+ markers • Automatic in-range / low / high status against reference ranges • Clear trend charts over time, in conventional or SI units BUILT-IN DOSE CALCULATOR • Turn vial concentration + target dose into the exact mL and insulin units • Works for testosterone, HCG and peptides TRACK HOW YOU FEEL • Log energy, mood, libido, sleep and weight • Connect the dots between your protocol, your labs and your wellbeing YOUR DATA, YOUR DEVICE • Everything stays on your device by default • Optional private iCloud sync across your devices • Export a clean CSV or a doctor-ready PDF anytime From your first vial to fully dialed-in, TRT Tracker is your companion for TRT, HRT and hormone optimization. TRT Tracker Pro unlocks: • Unlimited protocols — testosterone, HCG, AI and more • Bloodwork trend charts and full lab history • Unlimited lab markers • Wellness & symptom trends • CSV & PDF export for your doctor • Automatic iCloud backup & sync To have access to the premium content and functionality, you can choose between our auto-renewable subscriptions. We offer auto-renewable subscriptions within the selection of Yearly Subscription, Weekly Subscription or if you want to try before you can choose Free Trial. If you choose Free Trial, after the 3 days free trial the subscription automatically renews annual. This is a recurring transaction that will be charged to your iTunes Account at confirmation of purchase and will automatically renew unless you cancel it at least 24 hours before the end of your subscription. Renewals will be charged the same cost within 24 hours prior to the end of the current period. You can manage your subscriptions and auto-renewal can be turned off by going to your iTunes Account Settings after purchase. Disclaimer: TRT Tracker is for informational and record-keeping purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your doctor or a qualified healthcare provider in addition to using this app and before making any medical decisions or changes to your therapy. Privacy Policy: https://sites.google.com/view/allegrodigital/privacy-policy Terms of Use: https://sites.google.com/view/allegrodigital/terms-of-use
Screenshots
Verdict
The clearest difference is in-app purchases: Bio at none against TRT Tracker's 2. On price, ads, device support and iOS requirement 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
Both are free to download. TRT Tracker sells 2 in-app purchases, starting at $4.99 per 7 days. Bio asks for nothing beyond the download.
| Parameter | Bio | TRT Tracker |
|---|---|---|
| Price | Free | Free |
| Rating | 2.5 (41 ratings) — better | — |
| Positive reviews | 44.4% of reviews | — |
| Number of ratings | 41 — better | — |
| Update frequency | Every 205 months | — |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.6 | 16.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 8 MB |
| Age rating | 4+ | 12+ |
| Developer | Niedertronics | Allegro Digital |
In-app purchases
Bio
No in-app purchases
TRT Tracker
- Weekly Subscription$4.997 Days
- Yearly Subscription3 Days trial$29.991 Year




