Comparison

MoodStack vs Personal Training Diary

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

Head to head
About

MoodStack

This app analyzes supplements using AI to reveal their actual quality and effectiveness. It provides evidence-based recommendations for your health goals and audits your current supplement stack for potential issues and better alternatives.

Highlights
  • AI-powered supplement scanning
  • Quality score for products
  • Bioavailability and toxicity flags
  • Evidence-based symptom solver
  • Supplement stack auditing
  • Personalized alternative recommendations
  • Peptide library with sourced explainers
Features
Read full description

What's actually in your bottle? Most supplement apps just remind you to take pills. MoodStack tells you whether what you're taking actually works โ€” and what's a waste of money. Built for people who refuse to take stuff on faith. Powered by real science: bioavailability data, form quality, clinical doses, third-party testing, peer-reviewed sources. Updated as the evidence evolves. No marketing. No vibes. TRUTH SCORE โ€” SCAN ANY PRODUCT Point your camera at a supplement. In seconds, see what's really inside: โ€ข A 0โ€“100 quality score across thousands of products โ€” form, dose, testing, brand โ€ข Bioavailability of every form (magnesium glycinate vs oxide isn't a label โ€” it's 4% vs 90% absorption) โ€ข Toxicity flags on questionable compounds โ€ข Third-party-tested badges โ€” only when actually verified We show the form, the dose, the data โ€” and we show our work. SYMPTOM SOLVER โ€” WHAT ACTUALLY WORKS FOR YOUR PROBLEM Sleep. Focus. Low energy. Anxiety. Joint pain. Gut. Libido. Recovery. Skin. Immunity. And more. Pick what's bugging you and get the supplements that actually help โ€” ranked by evidence: โ€ข Strong / Moderate / Emerging tiers โ€” no false confidence โ€ข The right form, the clinical dose, the timing, the mechanism โ€ข Linked to the studies โ€ข Mythbusters: the popular "fixes" that don't survive the research, called out by name CELEBRITY STACKS What Andrew Huberman, Bryan Johnson, and other evidence-driven optimizers actually take โ€” every item sourced, every product scored. Borrow what holds up. Skip what doesn't. STACK AUDITOR โ€” IS YOUR STACK ANY GOOD? Add everything you take. MoodStack audits it in one shot: โ€ข A composite quality score for your whole stack โ€ข Overdose warnings when you're doubling up โ€ข Weak forms flagged โ€” with a better swap โ€ข Redundancies (you're paying twice for the same thing) โ€ข Gaps โ€” what's missing for your goals โ€ข Cheaper alternatives: same compound, better form, lower price โ€ข Nutrient coverage from your actual stack โ€” real numbers, not generic charts SMARTER ALTERNATIVES Every product comes with comparable alternatives ranked by quality, price, and bioavailability. Stop overpaying for marketing โ€” find the same compound in a better form for less. PEPTIDES LIBRARY Clear, sourced explainers on BPC-157, GLP-1s, NAD+, GHK-Cu and more โ€” what the evidence says, without the hype. MOODSTACK PRO Free forever: explore Truth Scores, the Symptom Solver, celebrity stacks, and full ingredient transparency. Pro unlocks the full intelligence โ€” scanning, ranked alternatives, the complete Stack Auditor, nutrient analytics, and sync across your devices. Available as a yearly subscription or a one-time Lifetime purchase โ€” your call. No subscription pressure if you don't want one, and the free tier stays permanent. PRIVACY FIRST Your health data is yours. No ads. No data selling. Encrypted. SUPPORT We answer every message: https://moodstack.app/contact MoodStack provides educational information about supplements and is not medical advice โ€” talk to a clinician before changing what you take. Continued use of the app constitutes acceptance of our Terms (https://moodstack.app/terms) and Privacy Policy (https://moodstack.app/privacy). Subscriptions auto-renew unless cancelled at least 24 hours before the end of the current period; the lifetime option is a one-time purchase. Manage or cancel anytime in your App Store account settings.

About

Personal Training Diary

Features
Read full description

A simple app for planning and tracking workouts. Create exercises and plan workouts using the exercises you've created. Track your workouts in the app. Statistics help you optimize your training progress. The free version allows to test the app but has some limitations. The Pro version, available via in-app purchase (one-time charge, no subscription), provides full functionality.ย  The app is available in English and German.

Screenshots

MoodStack4 screens
Personal Training Diary4 screens

Verdict

The call

The clearest difference is iOS requirement: MoodStack at 18.0 against Personal Training Diary's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. MoodStack sells 11 in-app purchases, starting at $3.99 per 7 days and Personal Training Diary sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

MoodStack ships an update every 4 days, Personal Training Diary every 5 days. The most recent releases landed on September 12, 2026 and September 8, 2026 respectively.

Scorecard1 real difference ยท 6 level
MoodStack versus Personal Training Diary: the parameters behind the verdict, then further details
ParameterMoodStackPersonal Training Diary
PriceFreeFree
Update frequencyEvery 4 days โ€” betterEvery 5 days
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumโ€”
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.0 โ€” better26.0
Further details โ€” not scored
Size15 MB4 MB
Age rating12+4+
DeveloperMartin CondetDieter Schmidt

In-app purchases

11 purchases

MoodStack

Subscriptions11
  • Weekly Membership3 Days trial$3.997 Days
  • Monthly Membership14 Days trial$5.991 Month
  • Weekly Membership$9.997 Days
Show 8 more
  • Monthly Membership$9.991 Month
  • MoodStack Pro โ€” Yearly$29.991 Year
  • Yearly Membership$47.991 Year
  • Yearly Membership3 Days trial$47.991 Year
  • Yearly Membership3 Days trial$49.901 Year
  • Yearly Membership14 Days trial$49.991 Year
  • Yearly Membership$69.991 Year
  • Yearly Membership7 Days trial$69.991 Year
1 purchases

Personal Training Diary

One-time1
  • Personal Training Diary Pro$4.99

Questions

Is MoodStack free?
MoodStack is free to download, with in-app purchases available.
Is Personal Training Diary free?
Personal Training Diary is free to download, with in-app purchases available.
Do MoodStack or Personal Training Diary have ads?
Neither MoodStack nor Personal Training Diary shows ads.
Which is updated more often, MoodStack or Personal Training Diary?
MoodStack ships an update every 4 days, and Personal Training Diary every 5 days. Most recently, MoodStack was updated on September 12, 2026 and Personal Training Diary on September 8, 2026.

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