Comparison

Sis vs KasMaker

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

Head to head
About

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.

Highlights
  • 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.)
Features
Read full description

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/

About

KasMaker

Features
Read full description

KasMaker is a workout tracker built around a muscle map. Log your sets as you would in any gym log, and an interactive body map fills in — primary and secondary muscles — so you see exactly what you trained, what is still fresh, and what to train next. A free strength training log with 800+ exercises, automatic personal records, supersets, a plate calculator, and a rest timer. TRACK EVERY MUSCLE Your body map fills in as you log. See at a glance which muscles are worked, which are fresh, and which you keep skipping. Tap any muscle to dig into its training history and top exercises filtered by your equipment. LOG WORKOUTS YOUR WAY Pick from 800+ exercises with instructions and images. Repeat a past workout in one tap, start from a saved routine, or build from scratch. Step away and come back — your session picks up right where you left off. AUTOMATIC PR DETECTION Personal records are caught the moment you log them. The first set at a new weight gets highlighted, so a milestone never slips by. REST TIMER Built-in rest timer that auto-starts when you finish a set and stays out of your way between exercises. Adjust the duration to fit how you train. SUPERSETS Link exercises to run back to back. Grouped exercises are badged in your log, and the rest timer waits for the end of the round instead of firing mid-superset. PLATE CALCULATOR Tap Plates on any barbell exercise and see exactly what to load per side — pick your bar, get the breakdown. No more gym math between sets. SET TYPES, WARM-UPS & RPE Mark sets as warm-up, drop set, or to failure. A warm-up calculator ramps you to your working weight, and warm-ups never inflate your PRs or recovery. Rate effort (RPE or RIR) to sharpen recovery estimates — off by default. APPLE HEALTH Optionally save every finished workout to Apple Health, so your lifting counts toward your activity. HOME SCREEN WIDGETS Your muscle map, right on your home screen. See what's fresh and what's still recovering without opening the app. Small and medium sizes. LIVE ACTIVITY & DYNAMIC ISLAND Run your whole workout from the Lock Screen and Dynamic Island — timer, current exercise, set progress. Complete sets and save your workout without unlocking your phone. MAKE IT YOURS Light, dark, or follow the system — plus an accent that runs through the whole app, muscle map included. BUILT FOR PRIVACY Your data lives on your device. iCloud sync is optional, and no account is required. No analytics. No tracking. No ads. Ever. MUSCLE RECOVERY — PRO Every muscle gets a readiness state — fresh, recovering, or fatigued — computed from your logged sets, your effort ratings, and each muscle's recovery window. Open the app and know exactly what's ready to train. SMART TRAINING INSIGHTS — PRO Push/pull balance, recovery status, volume trends, compound-vs-isolation mix, and progressive-overload targets — all generated from your own data, with no black boxes. Free includes your first insight; Pro unlocks all five. PROGRESS CHARTS — PRO Watch weight and estimated 1RM climb over time for every exercise you train. KASMAKER PRO Start completely free: workout logging, 800+ exercises, the body map, PR detection, the rest timer, supersets, the plate calculator, set types, the warm-up calculator, RPE/RIR, Apple Health, widgets, Live Activity, and your first training insight. KasMaker Pro unlocks the analytics layer — muscle recovery, per-exercise progress charts, all five training insights, and CSV export of your full history. — Subscription Terms KasMaker Pro is offered as an auto-renewable subscription (monthly or yearly) or a one-time lifetime purchase. Payment is charged to your Apple ID at confirmation. Subscriptions auto-renew unless canceled at least 24 hours before the end of the current period. You can manage or cancel your subscription in your App Store account settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://kasmaker.com/privacy.html

Screenshots

Sis4 screens
KasMaker4 screens

Verdict

The call

The clearest difference is in-app purchases: Sis at none against KasMaker's 3. Sis also leads on iOS requirement (15.1 vs 18.0). KasMaker's advantage is update cadence (every 5 weeks vs every 3 months). On price, ads and device support 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. KasMaker sells 3 in-app purchases, starting at $2.99 per month. Sis asks for nothing beyond the download.

UpkeepUpdate frequency

Sis ships an update every 3 months, KasMaker every 5 weeks. Both last shipped on October 24, 2026.

Scorecard3 real differences · 7 level
Sis versus KasMaker: the parameters behind the verdict, then further details
ParameterSisKasMaker
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 3 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPod — betteriPhone
Requires iOS15.1 — better18.0
Further details — not scored
Size181 MB10 MB
Age rating4+4+
DeveloperDT HEALTH AND FITNESS COACHING LTDAbdullah Ozturk

In-app purchases

None

Sis

No in-app purchases

3 purchases

KasMaker

Subscriptions2
  • KasMaker Pro Monthly7 Days trial$2.991 Month
  • KasMaker Pro Yearly7 Days trial$19.991 Year
One-time1
  • KasMaker Pro Lifetime$49.99

Questions

Is Sis free?
Sis is free to download, with no in-app purchases.
Is KasMaker free?
KasMaker is free to download, with in-app purchases available.
Do Sis or KasMaker have ads?
Neither Sis nor KasMaker shows ads.
Which is updated more often, Sis or KasMaker?
Sis ships an update every 3 months, and KasMaker every 5 weeks. Most recently, Sis was updated on October 24, 2026 and KasMaker on October 24, 2026.

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