Sis vs Power Within
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sis
A strength training platform designed exclusively for women, offering expert-led workouts, mental resilience tools, and a supportive community. Achieve your fitness goals at your own pace, whether at home or in the gym.
- Structured strength programs for all levels
- Realistic resilience tools and guidance
- Supportive sisterhood community
- Progress tracking for physical and mental wins
- Live classes and challenges
- Diverse training styles (bodyweight, kettlebell, etc.)
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Build strength from the inside out with the support of a powerful sisterhood. A movement Designed exclusively for women, our strength training platform helps you grow physically and mentally stronger, with expert guidance and a supportive sisterhood of like minded women by your side. Whether you're a mum with limited time, a student juggling a full schedule, a professional trying to stay consistent, or simply someone ready to prioritise their well-being, this is your space to feel empowered, focused, and truly connected. Your goals. Your pace. Your journey. What you’ll get inside the app: • Structured Strength Programs Expert-led workouts designed for all levels, build muscle, improve endurance, learn new skills and feel confident in your body. • Realistic resilience Tools & guidance Keeping you consistent with realistic goal setting, affirmations, guided reflections, and resources to help you stay grounded and mentally strong on this journey. • A Supportive Sisterhood, a community space where women lift each other up, literally and emotionally. Share progress, ask questions, and stay accountable. • Progress Tracking Celebrate every rep and every breakthrough with tools to track your physical and mental wins. • Live Classes & Challenges Stay motivated with regular sisterhood challenges and live workouts to keep things fresh and fun. • Strength That Shows Up in Real Life Programs and tools built to support you, whether at home or in the gym, so you feel stronger, more capable, and more confident in every area of life. • Diverse Training Styles From bodyweight calisthenics to kettlebell flows, strength circuits, and partner workouts, explore a wide range of modalities that fit your space, equipment, and mood. This app is your go to guide for becoming your strongest self with the energy and encouragement of a sisterhood that gets you. This is strength, redefined. For women, by women. Download now and start your journey toward a stronger, more resilient you. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Power Within
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Power Within is a yoga app designed to help you return to movement, again and again, without pressure or burnout. Built around breath-led movement, the app offers a growing library of yoga, strength, meditation, and ritual-based classes that support consistency and sustainable strength, wherever you are. This is a membership for real life. Inside the app, you’ll find done-for-you weekly routines, monthly group programs, self-guided challenges, live classes, and exclusive community support & accountability groups; all designed to help you stay connected to your body and build a practice you can actually stick with. Download classes to move offline, save your favorites, track your progress, and cast sessions to your TV or laptop for a more spacious at-home experience. Power Within was created by Sabrina, a yoga and sculpt teacher with a background in breath-led yoga, somatics, and nervous-system-aware strength. Her approach centers on listening to your body, moving with awareness, and building strength that lasts. Whether you’re just beginning or returning to movement after time away, Power Within offers a steady, supportive way to move, from anywhere, at your own pace. All subscriptions auto-renew and can be cancelled at any time. A subscription is required to access in-app content. Please note that you will be automatically charged after the free trial. T&Cs apply. https://powerwithin.gcph.tv/terms
Screenshots
Verdict
The clearest difference is in-app purchases: Sis at none against Power Within's 2. Power Within's advantage is update cadence (fortnightly vs every 3 months). 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. Power Within sells 2 in-app purchases, starting at $23.99 per month. Sis asks for nothing beyond the download.
Sis ships an update every 3 months, Power Within fortnightly. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.
| Parameter | Sis | Power Within |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 3 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.1 | 14.0 — better |
| Further details — not scored | ||
| Size | 181 MB | 124 MB |
| Age rating | 4+ | 4+ |
| Developer | DT HEALTH AND FITNESS COACHING LTD | Global Fitness Holdings Ltd |
In-app purchases
Sis
No in-app purchases
Power Within
- Monthly Subscription7 Days trial$23.991 Month
- Annual Subscription7 Days trial$239.991 Year









