Comparison

Theta Wellness vs Supplement Stack

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Theta Wellness

Consolidate all your health information, from medical records and lab reports to device data and personal notes, into a single, organized platform. Utilize an AI assistant to understand your health history and track specific conditions with personalized insights and guidance.

Highlights
  • Consolidate medical records and patient portal data
  • Sync data from wearables and health devices
  • AI-powered health insights and trend analysis
  • Condition-specific monitoring and guidance
  • Medication tracking and reminders
  • Share health data with a care circle
  • HIPAA-compliant and encrypted storage
Features
Read full description

Theta Wellness brings your whole health story into one place and helps you understand it. Hospital records, lab reports, Apple Health, your watch, your blood pressure cuff, the notes you jot down - Theta gathers all of it, keeps it in context, and lets you ask an AI that actually knows your history. ALL YOUR DATA, FINALLY TOGETHER - Connect your hospital or clinic patient portal and import your medical records. - Sync Apple Health and Apple Watch, plus Oura, Fitbit, Garmin, Omron and Withings devices. - Upload lab reports, imaging reports and check-up results as PDF, photo or spreadsheet. Theta extracts the values and files them under the right date. - Log anything by typing, talking or snapping a photo. Voice notes are transcribed automatically. A TIMELINE THAT TELLS YOUR STORY - Every day becomes one card: symptoms, meals, mood, medications, vitals and device data, with an AI summary of what happened. - Pick the indicators you care about and watch them day by day. - Daily sleep and stress scores, each explained against your own baseline, not someone else's. ASK THETA ANYTHING - Chat about your own data: "How has my blood pressure trended since I changed medication?" - Answers show charts and cite the exact report they came from. - Attach photos, documents or reports mid-conversation. - Compare answers from several leading AI models side by side and keep the one you trust. - Ask Theta to turn a conversation into a structured health report. ONE PAGE PER CONDITION - Dedicated views for hypertension, diabetes, cholesterol, chronic kidney disease, heart failure, arrhythmia, weight, osteoporosis and menstrual cycle. - Each page shows what to monitor, what is out of range, lab trends, recommended screenings and your medications, built on current clinical guidelines. - Clear guidance on when a reading needs urgent attention. MEDICATIONS, HANDLED - Photograph a pill bottle and Theta fills in the details. - Reminders at the times you choose, and one tap to log a dose as taken. DASHBOARDS BUILT FOR YOU - Describe what you want to track and Theta builds a custom dashboard with AI insights. CARE CIRCLE - Share your health picture with family or a caregiver, or help manage a loved one's. - See their conditions and records, and upload reports on their behalf. PRIVACY FIRST - Theta Wellness is a HIPAA-compliant platform with encrypted storage. - Face ID / Touch ID app lock. - Your health data is never sold or used for advertising. THETA PRO Theta Wellness is free to use. Theta Pro unlocks more AI conversations, more report analysis and more custom dashboards. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. IMPORTANT DISCLAIMER While Theta Wellness provides AI-driven insights and recommendations, it is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a licensed healthcare provider for any medical concerns or decisions. If you think you may have a medical emergency, call your local emergency number. Terms of Use: https://thetahealth.ai/protocol-termsoft-service Privacy Policy: https://thetahealth.ai/protocol-privacy

About

Supplement Stack

Get personalized supplement recommendations based on your health goals and existing medications. Understand the evidence behind each suggestion and avoid potential clashes. Offers free initial checks with optional paid features for ongoing monitoring and detailed analysis.

Highlights
  • Personalized supplement recommendations
  • Vitamin clash checks
  • Medication interaction alerts
  • Brand and dose verification
  • Evidence-based grading for picks
  • Saved supplement stacks
Features
Read full description

Wellpicked is a supplement checker for people who want a clear, honest view of what they take and why. Answer a few quick questions and you get personalized picks in about two minutes: what to take, what to skip, and the reason behind each one. Every pick comes with an evidence grade and a short explanation, so you can see how strong the research is instead of trusting a badge. - Personalized picks based on your answers - The reason behind each pick - What to take, when to take it, and what to take it with - Evidence grades with short explanations - Clash checks against your medications and your current stack - Brand and dose checks on the products you use - Re-checks when you add a bottle or your goals change - A saved stack you can come back to Wellpicked won't recommend something just to fill a list. If your stack is fine, it tells you that. Wellpicked provides general wellness information, not medical advice. It is not a substitute for care from a qualified professional. Check with your doctor before starting anything new, especially if you take prescription medication, are pregnant, or are managing a condition. Supplements can interact with medications and with each other. Some features require Premium: clash checks, brand and dose checks, re-checks, and the saved stack. Terms of Use (EULA): https://supp-ai-fable.vercel.app/terms Privacy Policy: https://supp-ai-fable.vercel.app/privacy

Screenshots

Theta Wellness4 screens
Supplement Stack4 screens

Verdict

The call

The clearest difference is rating: Supplement Stack at 5.0 against Theta Wellness's 4.4. Supplement Stack also leads on review sentiment (100% vs 80%). Theta Wellness's advantage is ratings volume (44 vs 3) and device support (3 vs 1). On price, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Theta Wellness sells 2 in-app purchases, starting at $19.99 per month and Supplement Stack sells 4 in-app purchases, starting at $5.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Supplement Stack holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Theta Wellness has 44 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 80% of Theta Wellness's written reviews are positive against 100% of Supplement Stack's.

UpkeepUpdate frequency

Theta Wellness ships an update every 6 days, Supplement Stack every 4 days. The most recent releases landed on November 12, 2026 and November 13, 2026 respectively.

Scorecard4 real differences · 6 level
Theta Wellness versus Supplement Stack: the parameters behind the verdict, then further details
ParameterTheta WellnessSupplement Stack
PriceFreeFree
Rating4.4 (44 ratings)5.0 (3 ratings) — better
Positive reviews80.0% of reviews100.0% of reviews — better
Number of ratings44 — better3
Update frequencyEvery 6 daysEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPad, Apple Watch — betteriPhone
Requires iOS17.016.4 — better
Further details — not scored
Size82 MB74 MB
Age rating17+17+
DeveloperTheta Health Inc.Decent4 LLC

Customer experience

Theta Wellness

All ratings43 ratings
Positive83.7%
Neutral2.3%
Negative14.0%
Written reviews25 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

Supplement Stack

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Theta Wellness

Subscriptions2
  • 1 Month of Standard Plan1 Month trial$19.991 Month
  • 1 Year of Standard Plan1 Month trial$199.991 Year
4 purchases

Supplement Stack

Subscriptions3
  • Wellpicked Pro Monthly7 Days trial$5.991 Month
  • Wellpicked Pro Annual Discount$34.991 Year
  • Wellpicked Pro Annual7 Days trial$49.991 Year
One-time1
  • Lifetime Pro$199.00

Questions

Is Theta Wellness free?
Theta Wellness is free to download, with in-app purchases available.
Is Supplement Stack free?
Supplement Stack is free to download, with in-app purchases available.
Which has better reviews, Theta Wellness or Supplement Stack?
Supplement Stack is rated higher. Theta Wellness averages 4.4 out of 5 from 44 ratings, while Supplement Stack averages 5.0 from 3 ratings.
Do Theta Wellness or Supplement Stack have ads?
Neither Theta Wellness nor Supplement Stack shows ads.
Which is updated more often, Theta Wellness or Supplement Stack?
Theta Wellness ships an update every 6 days, and Supplement Stack every 4 days. Most recently, Theta Wellness was updated on November 12, 2026 and Supplement Stack on November 13, 2026.

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