Loop Studios vs Stack
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Loop Studios
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Download the Loop Studios App today to plan and schedule your classes! From this mobile App, you can view class schedules and sign up for classes as well as view the studio’s location. Optimize your time and maximize the convenience of signing up for classes from your device! Download this App today!
Stack
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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
Verdict
The clearest difference is in-app purchases: Loop Studios 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
Both are free to download. Stack sells 3 in-app purchases, starting at $3.99 per month. Loop Studios asks for nothing beyond the download.
Loop Studios ships an update every 3 weeks, Stack every 6 days. The most recent releases landed on October 9, 2026 and September 27, 2026 respectively.
| Parameter | Loop Studios | Stack |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 weeks | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPad | iPhone, iPod, Apple Watch — better |
| Requires iOS | 16.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 191 MB | 62 MB |
| Age rating | 4+ | 4+ |
| Developer | Loop Pilates Limited | Naveen Senapathi |
In-app purchases
Loop Studios
No in-app purchases
Stack
- Stack Pro Monthly$3.991 Month
- Stack Pro Annual1 Month trial$39.991 Year
- Stack Pro Lifetime$79.99
