Killer Butt LE vs IronFyt
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Killer Butt LE
Achieve a sculpted, firm, and lifted posterior with short, daily workouts. This app offers customized routines, exercise videos, and audio guidance to help you reach your fitness goals anywhere, with or without equipment.
- 5-minute daily butt workouts
- Customized routines for all fitness levels
- Video and audio exercise guidance
- Over 25 unique exercises
- Workout anywhere, no equipment needed
- Interactive workout adjustments
- Syncs with Health app
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Shape, firm and lift your booty in only 5 minutes a day. With Killer Butt, you'll learn the secret moves to sculpt those hard-to-reach areas and get a butt that makes them look twice. Every workout is customized to your fitness level and to the equipment you have available. Each exercise includes an audio description to help walk you through the movement and a video you can view DURING YOUR WORKOUT, so you can always double-check your form. FEATURES • A complete leg and butt workout everyday. Strengthen and tone your butt and thighs quickly and easily. • Workouts customized for Beginner, Intermediate, and Advanced exercisers. • Over 25 unique exercises. Each one includes a video and audio description to help you perfect your form. • Works anywhere! You don't need any equipment to get a terrific workout. • lolo's beat-sync technology perfectly matches the tempo of your music to your workout. • Completely interactive. Swap out exercises to personalize your workouts. Increase or decrease the intensity at anytime and your trainer — and your music — will respond! • Sync your workouts to the Health app. • Compatible with most bluetooth heart rate monitors. If you like the FREE VERSION, CHECK OUT THE FULL VERSION to get: • Additional 10-minute and 15-minute workouts. • Nearly 50 additional exercises. • Equipment based exercises. Add stability balls, dumbbells, medicine balls, and more to your workouts to really turn up the intensity. Works with Health Compatible with Bluetooth Heart Rate Monitors
IronFyt
This app helps you build strength and fitness for everyday life through expertly designed daily workouts and a vast library of exercises. It offers smart logging, progress visualization, and social sharing to keep you motivated and consistent.
- Daily Workout of the Day (WOD)
- Infinitely scalable workouts
- Massive workout library (400+ exercises)
- Smart auto-fill logging
- Instagram share cards
- Workout rings for habit tracking
- Monthly analytics
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IronFyt is a strength and fitness tracking app designed to make you undeniably strong for everyday life. Whether you train in a home gym or at a local box, IronFyt helps you build the kind of fitness that actually matters outside the gym. Real life isn't just one movement or one modality. You have to lift heavy boxes, reach overhead, jump, and maintain balance. IronFyt's daily programming reflects this by blending heavy compound lifts with metabolic conditioning so you are ready for whatever life throws at you. Visualize your progress, stay motivated, and build a habit that lasts a lifetime. Age is just a number. Keep moving, lift more load, and get stronger. EXPERT PROGRAMMING FOR TOTAL FITNESS • The Workout of the Day (WOD): You don't have to guess what workout you'll do when you walk into your garage gym or your box. Every day features a carefully designed workout mixing big compound lifts (Squats, Deadlifts, Cleans, Bench) with bodyweight movements, metabolic conditioning and other dumbbell or barbell movements. If you follow our WOD, you will hit all major muscle groups in a week. Workouts very rarely get repeated. There is always a different combination of movements for the most part. • Infinitely Scalable: Fitness is for every age and ability. Don't have a barbell? Use a dumbbell. Don't have a dumbbell? Use a milk jug. Can't jump? Step up. Modify the movements, but keep moving. Our routines are designed to make you capable and strong in your daily life. Better aesthetics is just a side effect. • Massive Workout Library: Not feeling the daily WOD? Choose your own suffering from a library of 400+ curated workouts, with new workouts added frequently. LIGHTNING-FAST LOGGING • Smart Auto-Fill: Our intuitive UI helps you instantly log your sets so you can focus on lifting, not typing. FLEX YOUR HARD WORK • Instagram Share Cards: Generate beautiful, data-rich graphics of your workout log instantly. Didn't log your sets but still want to share the routine? Instantly post the WOD itself in a personalized share card. • Show Off Your Volume: Let your friends see your total load, total reps, and best sets. Community support is a massive motivator to keep pushing. BUILD YOUR STREAK • Workout Rings: Track the number of workouts finished this week and this month. Close your rings every week to build an unbreakable habit. • Monthly Analytics: Visualize your consistency. A dedicated bar chart shows the total number of workouts done each month to keep you chasing your goals. IRONFYT PREMIUM (Unlock Your Potential) Take your training to the next level with our Premium features: • Unlimited Historical Data: Unlock your complete lifting history. Never forget what you lifted last month or last year. • Advanced Analytics: Visualize your true power. Interactive line charts show the range of load and total volume moved every time you perform a specific lift. • Track PRs: Automatically keep track of your 1RM, 3RM, 5RM, and 10RM. Perform. Measure. Improve. Your data, your progress, your PRs. Download IronFyt today and start your journey to a stronger self. - Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ - Privacy Policy: https://www.ironfyt.com/privacy-policy.html
Screenshots
Verdict
The clearest difference is in-app purchases: Killer Butt LE at none against IronFyt's 2. Killer Butt LE also leads on iOS requirement (7.1 vs 18.0). IronFyt's advantage is update cadence (monthly vs every 6 months) and rating (5.0 vs 4.7). On price, review sentiment, ads and monetization model 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. IronFyt sells 2 in-app purchases, starting at $4.99 per month. Killer Butt LE asks for nothing beyond the download.
IronFyt holds the better App Store score, 5.0 against 4.7. Both are backed by a comparable volume of ratings — 3 and 9 respectively. Written reviews point the same way: 98% of Killer Butt LE's written reviews are positive against 100% of IronFyt's.
Killer Butt LE ships an update every 6 months, IronFyt monthly. The most recent releases landed on October 20, 2026 and October 13, 2026 respectively.
| Parameter | Killer Butt LE | IronFyt |
|---|---|---|
| Price | Free | Free |
| Rating | 4.7 (3 ratings) | 5.0 (9 ratings) — better |
| Positive reviews | 98.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 3 | 9 — better |
| Update frequency | Every 6 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Freemium | Freemium |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 7.1 — better | 18.0 |
| Further details — not scored | ||
| Size | 129 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | lolo | Arrow Total Solutions, LLC |
Customer experience
Killer Butt LE
IronFyt
Bugs and requests
Killer Butt LE
Reported bugs
5 issues- Counting is way off
- Software freezes randomly
- Video and voice sync issues
- Double counted reps on one side and didn't switch
- Cannot connect to save info
Requested features
2 requests- More workout options
- Explanations on proper exercise technique
IronFyt
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Killer Butt LE
No in-app purchases
IronFyt
- Monthly$4.991 Month
- Annual7 Days trial$49.991 Year









