# Supplement Tracker — Trialist — Symptom Tracker & Habit Tests

> Symptom Tracker & Habit Tests (iPhone/iPad app by RIKU ROBERT BRANDT.)

- Source: https://appshunter.io/ios/app/supplement-tracker-trialist/id6754047046 (this page in markdown: same URL + `.md`)
- Developer: [RIKU ROBERT BRANDT](https://appshunter.io/developer/1846430592)
- Category: Health & Fitness, Productivity
- Price: Free with in-app purchases (on sale, was $3.99)
- Age rating: 12+
- Requires: iOS 17.0 · 21 MB
- Languages: American English, Dutch, French (France), German (Germany), Italian, Japanese, Korean, Polish, Brazilian Portuguese, Russian and 5 more
- Released: 2025-11-11
- Data updated: 2026-09-06
- User reviews in markdown: https://appshunter.io/ios/app/supplement-tracker-trialist/id6754047046/reviews.md

## What is Supplement Tracker?

Stop guessing whether that supplement, bedtime, or new habit is doing anything. Trialist turns your iPhone into a personal lab: change one thing, and watch what actually happens in your own health data.

HOW IT WORKS
1. Pick something to test — magnesium before bed, an earlier last meal, cold plunges, no late caffeine, a new routine. Anything you can do (or skip) on a given day.
2. Log it in a tap. Trialist reads your Apple Health data in the background.
3. See the difference. Trialist compares your "did it" days against your personal baseline and shows you the change — with the sample size and strength behind every number.

WHAT MOVES YOUR DATA
The heart of Trialist is one honest question: what actually moves your sleep, HRV, resting heart rate, steps, or energy? Trialist ranks your habits, doses, and journal tags by their real day-to-day effect — not by hype. Dig into dose-response ("how much is enough?"), timing effects ("does it matter when?"), and change-points ("when did things shift?").

RATE YOUR DAY
Give the day a quick 1–10. Over time Trialist learns what separates your great days from your rough ones — and even which way the arrow points (does better sleep make a better day, or the other way around?).

A JOURNAL THAT EXPLAINS THE OUTLIERS
Capture what you ate, how you felt, or a gut symptom in a tap, and tag the day (sick, traveling, big meal, hard workout). Trialist lines those entries up against your metrics — so you can catch the food behind a rough night, or the symptom that shows up a day after a trigger.

BUILT ON HONESTY
Most health apps overclaim. Trialist does the opposite. Every result shows how much data is behind it (Limited / Good / Strong), calls associations what they are — associations, not proof — and lets you exclude sick or travel days so they don't skew your results.

PRIVATE BY DESIGN
- No account. No sign-up.
- No cloud. Everything stays on your device.
- No third-party tracking or ads.
- Export your full data anytime as JSON, or a clean PDF to share with whoever you choose.

TRACK EVERYTHING IN ONE PLACE
- Binary habits, A/B comparisons (Running vs Cycling), dosed supplements, and timed routines.
- A visual calendar of every trial, streaks, and adherence.
- A day journal with tags to capture context (sick, traveling, big meal, hard workout…).

TRIALIST PRO
Create experiments, log every day, and see how your "did it" days compare to your baseline. Trialist Pro unlocks the full insight engine: "what moves your data", dose-response ("how much is enough?"), timing effects ("does it matter when?"), change-point detection, head-to-head experiment comparison, food-to-symptom lag, and the good-days analysis.

—
Trialist is for personal, informational, and educational use only. It is not a medical device and does not diagnose, treat, cure, or prevent any disease or condition. Always consult a qualified health professional before changing your health routine.

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Trialist Pro — Annual | $19.99 | per year |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Trialist Pro — Lifetime | $49.99 | one-time |



## Version history (last 5 releases)

### 1.4 — 2026-08-25

Trialist now speaks 14 languages: German, French, Spanish, Italian, Portuguese, Japanese, Korean, Chinese (Simplified and Traditional), Dutch, Swedish, Polish, Russian, and Turkish.

Also in this update:
- Track symptoms as experiment outcomes - test what helps your gut, headaches, or energy
- Log foods and symptoms as variables in the journal
- Redesigned onboarding: pick a goal and start with a running experiment
- Verdicts now always agree with the numbers next to them
- Calendar fixes and faster analysis

### 1.3 — 2026-07-27

A big update focused on understanding what actually works for you:

• What moves your data — a new ranked view of the habits, doses, and days that shift your sleep,
  HRV, energy and more, by real effect size.
• Rate your day — a one-tap daily score, plus an analysis of what separates your good days from
  your rough ones (and which comes first).
• Journal — capture meals, symptoms and context in a tap, then see how they line up with your
  metrics (like a food that shows up in your gut a day later).
• A smoother start — pick a goal and Trialist sets up your first experiment for you.
• Sharper, more honest stats — clearer confidence levels, change-point detection, and the option
  to exclude sick or travel days.

Thanks for experimenting with us. Questions or ideas? We read every message.

### 1.2 — 2026-01-19

Bug fixes and Improvements

### 1.1 — 2025-11-23

Performance improvemets and bug fixes.

### 1.0 — 2025-11-11

No release notes.

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## More apps by RIKU ROBERT BRANDT

- [Hank: Workout Tracker & Log](https://appshunter.io/ios/app/hank-workout-tracker-and-log/id6801644855)

All apps by RIKU ROBERT BRANDT: https://appshunter.io/developer/1846430592

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-06.*