Comparison

Studio 6 Wellness vs Stackr

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

Head to head
About

Studio 6 Wellness

Discover a variety of fitness classes like Pilates, Yoga, and TRX. This app connects you to a boutique studio offering private and semi-private lessons for all ages and skill levels. Achieve your fitness goals and find a stronger, more flexible you.

Highlights
  • Pilates classes
  • Yoga sessions
  • GYROTONIC® Method
  • TRX training
  • Mat fusion workouts
  • Private lessons
  • Semi-private lessons
Features
Read full description

Studio 6 is a boutique studio located at 6th Ave and Main Street in downtown Hopkins, MN. We offer classes and lessons - both private and semi-private - for all ages, abilities and experience levels in Pilates, Yoga, GYROTONIC® Method, TRX, and mat fusion. Let us help you find your Strength, Length, and a whole new YOU!

About

Stackr

This app simplifies tracking peptide and GLP-1 doses, including supplies like vials and pens. It offers smart reminders, home screen widgets, and visual charts of estimated active levels based on half-life. Designed for users managing peptide protocols, it keeps your dosing information organized and accessible.

Highlights
  • Log peptide and GLP-1 doses
  • Track vials, pens, and other supplies
  • Smart reminders for next doses
  • Home screen widgets
  • Estimated active level charts
  • Multi-peptide stack tracking
  • Reference pages for common compounds
Features
Read full description

Stackr is the all-in-one tracker for your peptide and GLP-1 protocol. Every dose, vial and meal in one place, with the math done for you. KEY FEATURES • Dose tracking and reminders Log a dose in seconds from your Home screen. Run daily, weekly, every-few-days or specific-day schedules, and several protocols at once. Reminders make sure you never miss a dose, and Home Screen widgets show what's next. • Dose calculator Enter your vial strength, water and dose, and see exactly how many units to draw on a U-100 or U-40 syringe. Works in mcg, mg, IU and units. • Supplies and vials Track vials, pens and other supplies. Stackr counts down what's left every time you log and warns you before you run out. • Progress Keep your weight, progress photos and dose history together, with a calendar of taken and missed doses and estimated active levels from your logs. • Food and calories Snap a meal, scan a barcode, search a food or just say what you ate. Stackr tracks calories and protein against your daily plan. • Stackr Coach Ask the AI coach questions about your routine and your meals, any time. • Learn Reference pages for semaglutide, tirzepatide, retatrutide, BPC-157, TB-500, GHK-Cu and 100+ more, with research status and sources. WHY STACKR • Built for GLP-1s and peptides, from one weekly shot to a full stack • Pounds or kilograms, mcg or mg, U-100 or U-40 • Syncs across your devices when you sign in • Message the team directly from Settings Stackr is a personal tracking and educational app. It does not give medical advice, prescribe treatments or tell you which peptide, dose or schedule is right for you. Always talk to a qualified healthcare professional. Active levels and photo-based nutrition values are estimates. SUBSCRIPTION Stackr is free to download. Full access requires a paid Stackr+ subscription. Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. Manage or cancel your subscription in your Apple Account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://getstackr.app/privacy

Screenshots

Studio 6 Wellness2 screens
Stackr4 screens

Verdict

The call

The clearest difference is rating: Studio 6 Wellness at 5.0 against Stackr's 4.4. Studio 6 Wellness also leads on in-app purchases (none vs 7) and device support (3 vs 1). Stackr's advantage is update cadence (every 4 days vs every 33 months) and ratings volume (143 vs 1). On price and ads 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. Stackr sells 7 in-app purchases, starting at $7.99 per 7 days. Studio 6 Wellness asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Studio 6 Wellness holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Stackr has 143 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Studio 6 Wellness ships an update every 33 months, Stackr every 4 days. The most recent releases landed on September 26, 2026 and October 13, 2026 respectively.

Scorecard8 real differences · 3 level
Studio 6 Wellness versus Stackr: the parameters behind the verdict, then further details
ParameterStudio 6 WellnessStackr
PriceFreeFree
Rating5.0 (1 ratings) — better4.4 (143 ratings)
Positive reviews—72.0% of reviews
Number of ratings1143 — better
Update frequencyEvery 33 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
Best chart rank—#187 — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS11.0.0 — better17.0
Further details — not scored
Size55 MB88 MB
Age rating4+12+
DeveloperStudio 6 WellnessStackr Holdings LLC

Customer experience

Studio 6 Wellness

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Stackr

All ratings143 ratings
Positive86.7%
Neutral1.4%
Negative11.9%
Written reviews25 reviews
Positive72.0%
Neutral4.0%
Negative24.0%

In-app purchases

None

Studio 6 Wellness

No in-app purchases

7 purchases

Stackr

Subscriptions7
  • Stackr+ Weekly$7.997 Days
  • Monthly$12.991 Month
  • Stackr+ Yearly$29.991 Year
Show 4 more
  • Stackr+ Yearly$49.991 Year
  • Stackr+ Yearly3 Days trial$49.991 Year
  • Stackr+ Yearly$59.991 Year
  • Yearly3 Days trial$69.991 Year

Questions

Is Studio 6 Wellness free?
Studio 6 Wellness is free to download, with no in-app purchases.
Is Stackr free?
Stackr is free to download, with in-app purchases available.
Which has better reviews, Studio 6 Wellness or Stackr?
Studio 6 Wellness is rated higher. Studio 6 Wellness averages 5.0 out of 5 from 1 ratings, while Stackr averages 4.4 from 143 ratings.
Do Studio 6 Wellness or Stackr have ads?
Neither Studio 6 Wellness nor Stackr shows ads.
Which is updated more often, Studio 6 Wellness or Stackr?
Studio 6 Wellness ships an update every 33 months, and Stackr every 4 days. Most recently, Studio 6 Wellness was updated on September 26, 2026 and Stackr on October 13, 2026.

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