Stack vs TRT Vault Testosterone Tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Stack
This app helps users track their weightlifting progress with a focus on ease of use and data privacy. It allows for detailed logging of sets, exercise planning, and visual progress tracking without ads or intrusive notifications.
- Distraction-free lifting log
- Local-first data storage with optional iCloud sync
- Customizable splits and routines
- Extensive exercise library with muscle mapping
- Detailed per-set logging
- Plate calculator for real-world racks
- Progress visualization and trend analysis
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Less tapping. More time lifting. See how far you have come. Stack is a workout log for strength training. Walk in with a routine ready, keep your last session's numbers close and see your progress over time. Start free, with no account required. With Stack Pro, get a target for your next set, skip the plate math and repeat a set from your iPhone Lock Screen without reopening the app. KEEP YOUR WORKOUT MOVING Log weight and reps with controls made for the time between sets. Your previous session's numbers are prefilled, so you can pick up where you left off. Build routines, add your own exercises and train in pounds or kilograms. SEE WHAT YOUR WORK IS ADDING UP TO Revisit your workout history, follow strength trends and track personal records. Explore the muscle map to see which muscles your logged sets worked. Your workout log, history, basic trends and muscle map are free. GIVE YOUR NEXT SESSION A DIRECTION WITH PRO - Know what to lift next. Smart Targets suggest weight and reps based on your logged sets. - Keep logging from your Lock Screen or Dynamic Island. Repeat your previous set and add rest time on iPhone. - Load the bar without the math. See the plates to put on each side for your chosen weight. - Turn a weekly gap into a plan. Compare planned sets with your muscle targets, preview a routine change and save it when it fits your week. - See progress beyond the numbers. Compare progress photos and work toward your next max attempt with guided one-rep max testing. Pro also includes Gym Mode, suggested exercise replacements, extra themes and custom appearance controls. YOUR TRAINING, WITH YOU Log workouts offline. Export and import your training data, and choose optional iCloud sync. No account is needed to start training. Start with your next workout. Keep a record you can build on. STACK PRO Optional monthly or yearly subscription, or a lifetime purchase. Subscriptions renew automatically until cancelled. Manage or cancel your subscription in your App Store account settings. Lifetime is a one-time purchase. Terms of Service: https://stack.lauterstar.com/terms.html
TRT Vault Testosterone Tracker
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TRT Vault is a private tracker for physician-prescribed testosterone replacement therapy. Log every injection with its site and time, keep your bloodwork on one timeline, and walk into every follow-up with a clean record. TODAY • Your next dose, counted down — with the rotation site suggested from your own history • A streak that degrades instead of resetting: one missed dose never erases months of consistency • Adherence with its denominator — "100% of 5 doses", not a vibe LOG IN ONE TAP • Dose, time, and injection site — nine sites, each remembering its last use • Optional check-in: energy, mood, libido, sleep, weight • Notes linked to the dose they followed BLOODWORK • Ten markers: Total T, Free T, estradiol, SHBG, hematocrit, hemoglobin, LH, FSH, prolactin, PSA • Every result charted with your lab report's reference range behind it • Descriptive positions only — "upper third of the reference range", never a diagnosis LIBRARY • 18 TRT-related compounds: testosterone esters, aromatase inhibitors, SERMs, gonadotropins, and more • Status-labeled entries with citations attached to every claim • An educational reference, not medical advice PRIVATE BY DESIGN • No account, no login, no cloud copy of your record • Your protocol data stays on your iPhone — export it as plain text any time TRT Vault requires a TRT Vault Pro auto-renewing subscription. Payment is charged to your Apple ID account; manage or cancel in App Store settings. TRT Vault is a tracking tool for physician-prescribed regimens. It does not provide medical advice or dosing recommendations. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://jacobteague50-glitch.github.io/legal/trt-vault-privacy.html
Screenshots
Verdict
The clearest difference is in-app purchases: Stack at none against TRT Vault Testosterone Tracker's 2. TRT Vault Testosterone Tracker's advantage is iOS requirement (15.1 vs 26.2). On price, update cadence, ads and device support 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 Vault Testosterone Tracker sells 2 in-app purchases, starting at $9.99 per month. Stack asks for nothing beyond the download.
Stack ships an update every 10 days, TRT Vault Testosterone Tracker every 11 days. The most recent releases landed on October 2, 2026 and September 26, 2026 respectively.
| Parameter | Stack | TRT Vault Testosterone Tracker |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 10 days — better | Every 11 days |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 26.2 | 15.1 — better |
| Further details — not scored | ||
| Size | 22 MB | 44 MB |
| Age rating | 4+ | 12+ |
| Developer | Lauterstar Technologies, Inc | Jacob Teague |
In-app purchases
Stack
No in-app purchases
TRT Vault Testosterone Tracker
- TRT Vault Pro$9.991 Month
- TRT Vault Pro Annual$69.991 Year
Questions
Is Stack free?
Is TRT Vault Testosterone Tracker free?
Do Stack or TRT Vault Testosterone Tracker have ads?
Which is updated more often, Stack or TRT Vault Testosterone Tracker?
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