StackProof vs OnePin
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
StackProof
Read full descriptionHide full description
Most people take supplements and hope for the best. StackProof turns that guesswork into a real personal experiment so you finally know what's working, what's not, and what's worth keeping. HOW IT WORKS StackProof uses a simple 3-phase method used in clinical research, adapted for everyday use: 1. Baseline Phase - Log how you feel for 7 days without taking the supplement. This captures your natural normal. 2. Active Phase - Start taking your supplement daily and keep logging. 60 seconds a day. 3. Review - See a clear before vs after comparison across every metric that matters to you. No guessing. No placebo. Just your own data telling you the truth. WHAT YOU TRACK Every day you log 5 metrics on a simple 1-5 scale: - Energy - Focus - Mood - Sleep Quality - Side Effects Over time, StackProof shows you exactly how each metric shifted from your baseline to your active phase, with a confidence rating based on your consistency. SMART BASELINE After your first experiment, StackProof learns your patterns. On future experiments it can detect when you have enough recent data to skip the waiting period and start the active phase immediately. BUILT FOR REAL BIOHACKERS StackProof is designed for people who take their optimization seriously. Whether you're testing Lion's Mane for focus, Magnesium for sleep, Ashwagandha for stress, or anything else, every experiment gives you a clean structured result you can actually act on. STACKPROOF PRO Unlock the full experience: - Unlimited simultaneous experiments - Full analytics with trend charts across 7, 30, and 90 days - Smart Baseline - skip waiting periods using your recent data - Unlimited experiment history - Custom metrics beyond the default 5 - Data export to CSV - Washout period reminders Start with a free 7-day Pro trial. No charge until the trial ends. Cancel anytime. YOUR DATA Your logs are private and stored securely. StackProof never sells your data or uses it for advertising. Start your first experiment today. Your stack deserves an honest test. Standard Apple Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
OnePin
This app helps users meticulously track complex peptide and supplement protocols. It offers smart syringe grouping, phase-aware dose calculations, vial life management, and inventory tracking. Features include a body map injection site tracker and protocol templates for research peptide users and biohackers.
- Complex protocol tracking
- Smart syringe grouping
- Phase-aware dose calculations
- Vial life and supply forecasting
- Inventory management
- Body map injection site tracker
- Protocol templates
Read full descriptionHide full description
OnePin is the protocol tracker built for people who actually run peptides and supplements - not a glorified pill reminder. WHAT IT DOES - Track every peptide, supplement, and dose across complex multi-phase protocols - Smart syringe grouping with built-in compatibility checks (avoid lists, safe lists, contamination warnings) - Phase-aware dose calculations that handle taper, escalation, and break cycles automatically - Vial life math, doses-per-vial, supply forecasting per cycle - Day-by-day calendar with cycle countdowns and rest-day awareness - Inventory tracking with batch dates, costs, vial-tracking, and phase-aware capacity projections - Body map injection site tracker with heat-map awareness so you rotate sites - Protocol templates for popular compounds, with editable starting points - Compliance dashboard, dose history, and dose-log audit trail - Compound database covering peptides, supplements, blends, and bioregulators - Household sharing - track for yourself plus a partner from one app CYCLE TYPES SUPPORTED - Indefinite (daily / EOD / weekly / specific days) - Yearly Schedule (auto-spaced cycles per year, e.g. 3x/yr bioregulators) - Fixed Count (run N cycles then stop, with end-date preview) - Custom phases with per-slot dose escalation INTERACTION SAFETY - 200+ compound database with curated avoid / safe pair data - Real-time syringe planner that flags REACTIVE compounds (GHK-Cu, glutathione, SS-31, LL-37, etc.) and isolates them per chemistry safety rules - Same-day dosing interaction warnings across routes - Bioregulator-specific grouping logic WHO IT'S FOR If you're running anything more complex than "1 peptide, daily, forever", you've felt the pain of spreadsheet-tracking peptide protocols. OnePin replaces that spreadsheet. Designed for: research peptide users, supplement biohackers, protocol designers, household partners managing each other's protocols, anyone running multi-phase or cycle-based regimens. NOT INTENDED FOR OnePin is a tracking and education tool. It does not provide medical advice. Compounds tracked are sourced as research chemicals or supplements; verify dosing with a physician before use. The app does not validate the safety or legality of any compound or protocol you enter. PRIVACY Your data stays yours. Local-first storage with optional cloud sync via your account. We don't sell or share your data. SUBSCRIPTION OnePin Premium is an auto-renewing subscription. - Length: 1 year (annual) - Free trial: 30 days free, then $49.99/year - Payment is charged to your Apple Account at confirmation of purchase, after the 30-day free trial ends. - The subscription automatically renews unless canceled at least 24 hours before the end of the current period. Your account is charged for renewal within 24 hours before the period ends. - Manage or cancel anytime in your App Store account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
StackProof and OnePin are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases 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. StackProof sells 3 in-app purchases, starting at $1.99 per month and OnePin sells 1 in-app purchase, starting at $49.99 per year. Whichever you choose, the download price is not the number that matters.
StackProof ships an update weekly, OnePin every 5 days. The most recent releases landed on September 15, 2026 and September 18, 2026 respectively.
| Parameter | StackProof | OnePin |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (6 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 6 — better |
| Update frequency | Weekly | Every 5 days — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | — | Freemium |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.1 | 15.0 — better |
| Further details — not scored | ||
| Size | 42 MB | 83 MB |
| Age rating | 4+ | 17+ |
| Developer | joel Saucedo Lozano | James Lee |
In-app purchases
StackProof
- Monthly$1.991 Month
- Yearly$34.991 Year
- Lifetime$59.99
OnePin
- OnePin Premium (Annual)1 Month trial$49.991 Year









