Comparison

JT Studio Pilates vs Stack

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

Head to head
About

JT Studio Pilates

This fitness app combines Pilates precision with resistance training for sculpted muscles, enhanced mobility, and lasting confidence. It offers a library of on-demand workouts ranging from 10 to 40 minutes, with new classes added weekly. Train anytime, anywhere with flexible routines designed to fit any lifestyle and deliver results.

Highlights
  • On-demand video library
  • New classes weekly
  • Weekly workout schedules
  • Exclusive challenges and programs
  • Private member community
  • Flexible workout durations (10-40 mins)
Features
Read full description

Welcome to JT Studio Pilates by Jackie, a fitness method designed to move with you. These workouts blend the precision of Pilates with the power of resistance training to help you sculpt lean muscle, enhance mobility, and build lasting confidence. Whether you’re training at home, in the gym or on the road, the rotating routines and varied formats keep things fresh, effective, and aligned with your goals, even when time is limited. Led by Jackie “JT” Lloyd, a certified mat and reformer Pilates instructor, personal trainer, and corrective exercise specialist, JT Studio offers a flexible, results-driven approach that fits any lifestyle. From quick 10-minute sessions to full 40-minute flows, each class is thoughtfully crafted to challenge your strength, improve body awareness, and deepen the mind-body connection that’s at the heart of Pilates. WHAT YOU GET WITH YOUR MEMBERSHIP: - Extensive On-Demand Video Library - New Class Added Every Week - Weekly Workout Schedule - Exclusive Challenges & Programs - Private Member Community - Train Anytime, Anywhere Whether you have 10 minutes or 40, JT Studio makes it easy to stay consistent, feel empowered, and get results. WHY JT STUDIO WORKS: JT Studio’s approach is holistic, empowering, and intentionally designed to meet you where you are. We blend Pilates precision with functional resistance work, helping you: - Sculpt lean, defined muscles - Improve flexibility and mobility - Reclaim strength and energy - Build lasting confidence from the inside out With a mix of quick, high-impact sessions and longer-form programs, you'll never plateau, only progress. MEMBERSHIP OPTIONS Annual Plan: $149.99 (Best Value – Save 50%) Monthly Plan: $24.99 SUBSCRIPTION & ACCESS: - Subscribe through the JT Studio Pilates app with a monthly or yearly auto-renewing plan. Pricing may vary by region and will be confirmed before purchase. - You can cancel anytime through your account settings within the app. - If you cancel, you’ll retain access to all content for the remainder of your paid term. - If renewal payment fails, your account may be temporarily paused until payment is resolved, no data will be lost. TERMS & PRIVACY POLICY: https://jtstudiopilates.com/policies

About

Stack

Features
Read full description

Stack is a routine execution system for people who already know what they should be doing. You have a supplement stack. A skincare routine. A training programme. The problem isn't information, it's execution. Stack turns everything you already have into a clean daily checklist, then gets out of your way. IMPORT ANYTHING Paste your routine as raw text like notes, a WhatsApp message, a list, an AI summary. Stack reads it and builds your structured routine automatically. No templates. No manual entry. Just paste and go. TODAY VIEW Every block due today appears in one flat list, in order. Morning supplements. Evening skincare. Push day. You open the app, work through the list, and close it. That's the entire interaction. PROTOCOLS LIBRARY All your routines live in one place. Skincare, Supplements, Fitness, anything else. Each protocol shows how many steps are scheduled today and your current completion rate. Tap in to drill down to individual steps. HISTORY LOG Look back at any day. See exactly what you completed, what you skipped, and any notes you added. Useful for spotting patterns over time like realising you always miss Tuesday evening. INSIGHTS Weekly and monthly adherence charts with AI-generated analysis. Stack looks at your completion data across all protocols and surfaces specific, actionable observations, not generic encouragement. BUILT FOR PROTOCOL PEOPLE Stack is not a habit-building app. There are no streaks, no badges, no motivational quotes. It assumes you already have the discipline. It just removes the friction between knowing what to do and actually doing it. Works with any routine: supplements, skincare, training splits, mobility work, morning shakes, medication, meal prep. If it has steps, Stack can hold it. Dark and light mode. Notification reminders. Cloud sync across devices. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://getstackapp.xyz/privacy Stack Terms: https://getstackapp.xyz/terms

Screenshots

JT Studio Pilates4 screens
Stack4 screens

Verdict

The call

The clearest difference is in-app purchases: JT Studio Pilates at none against Stack's 3. Stack's advantage is update cadence (every 6 days vs every 3 weeks). On price, ads, device support and iOS requirement 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. Stack sells 3 in-app purchases, starting at $3.99 per month. JT Studio Pilates asks for nothing beyond the download.

UpkeepUpdate frequency

JT Studio Pilates ships an update every 3 weeks, Stack every 6 days. The most recent releases landed on October 5, 2026 and October 13, 2026 respectively.

Scorecard2 real differences · 7 level
JT Studio Pilates versus Stack: the parameters behind the verdict, then further details
ParameterJT Studio PilatesStack
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 3 weeksEvery 6 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationSubscription—
DevicesiPhone, iPadiPhone, iPod, Apple Watch — better
Requires iOS16.415.1 — better
Further details — not scored
Size121 MB62 MB
Age rating12+4+
DeveloperSutra Fitness, Inc.Naveen Senapathi

In-app purchases

None

JT Studio Pilates

No in-app purchases

3 purchases

Stack

Subscriptions2
  • Stack Pro Monthly$3.991 Month
  • Stack Pro Annual1 Month trial$39.991 Year
One-time1
  • Stack Pro Lifetime$79.99

Questions

Is JT Studio Pilates free?
JT Studio Pilates is free to download, with no in-app purchases.
Is Stack free?
Stack is free to download, with in-app purchases available.
Do JT Studio Pilates or Stack have ads?
Neither JT Studio Pilates nor Stack shows ads.
Which is updated more often, JT Studio Pilates or Stack?
JT Studio Pilates ships an update every 3 weeks, and Stack every 6 days. Most recently, JT Studio Pilates was updated on October 5, 2026 and Stack on October 13, 2026.

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