Coach Kostas Corner vs CORE4 Members
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Coach Kostas Corner
Access a comprehensive coaching and transformation mentorship designed for goal achievement. Receive personalized workout and nutrition plans, mindset development tools, and progress tracking to support your journey to a healthier and more successful life.
- Personalized coaching programs
- Customized workout plans with videos
- Bespoke nutrition plans with food logging
- Mindset and self-development blueprints
- Progress tracking and data logging
- Messaging and reminders
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The ultimate coaching and transformation mentorship is all in one app! Succeeding at your goals can't get any more convenient or efficient. The global success of my Trinity Transformation coaching mentorship is now fully accessible 24 hours a day at your fingertips. Clients now have access to all of the tools they need to succeed at their goals with their customized program that connects their tasks, their life, with me at all times. By joining this mentorship you will get access to: PERSONALIZED COACHING PROGRAM A fully tailored program we design together after the initial consultaion with all the directions, tasks, daily/weekly/monthly targets & goals, data logs to track progress or spot obstacles, all of our notes, messaging, voice/video recordings, alarms/reminders we can both set to make consistency/accountability much easier to attain and more upgrades monthly as the app gets better and better. PERSONALIZED WORKOUT PLANS No matter what the goal is, what capability or level the client has, or what access to fitness they can reach… every client will have a customized training plan in detail with instructional videos. All progress can be tracked/logged/adjusted 24-7 for all disciplines of (resistance training/sport/cardio/stretching & breathing). HEALTH IS WEALTH, a strong healthy body is one of 3 major pillars in the Trinity Transformation and we make sure you are gifted it. BESPOKE NUTRITION PLANS Thats right, I personally will customize a nutrition plan to meet all your goals. Wether general health, fat loss, muscle gain, sport specific performance needs, allergies, HRT, pre/post natal, improving health markers or getting off medications: its all covered and tailored to your lifestyle and preferences. You will be able to track and log your food throughout the day for both of us to see and asses. The app also has 1.4m verified foods in with macros & micronutrients like Fiber, Sugar, Saturated Fat, Polyunsaturated, Monounsaturated and salt. Over 800k barcodes, 3,000+ restaurants and multiple portion options. All foods are 100% verified. You can achieve the health and body you’ve always dreamed of. MINDSET & SELF DEVELOPMENT The roots to the success of this coaching program is skillset and mental/spiritual development of all my clients. I’ve taken all the anecdotal and academic knowledge and experience of the past two and half decades, put it together into simple blueprints for others to follow to be able to overcome ANY obstacles and achieve the life they desire. I am living proof of doing out the other side of life hardest, most difficult tragedies and adversities winning and consistently progressing. Myself and the successful clients of this mentorship walk the talk, these are bulletproof systems to help one achieve the highest level of physical, mental and financial achievements. ALL OF YOUR NEEDS as a customer will be met with effeciency and precision. NO need to fumble with emails/ pdfs/ saved videos or pics/ notes/ assessments/ billing/ scheduling or anything. This app with my guidance and our team work guarentees optimal results. Various options apply with our Platinum, Gold and Silver packages all explained on the website menu page “Packages” MEMBERSHIP & Payment packages will be confirmed during the Consultation Video/Phone call, one client confirms package choice www.trinitytransformation.net I look forward to joining you on creating the best version of you and your abundant future forward! * App access requires paid coaching plan Terms of use: https://kahunas.io/terms-conditions Privacy policy: https://kahunas.io/privacy
CORE4 Members
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The CORE4 Members App by Coach Caelum The CORE4 Members App is a private coaching platform designed for men who want structured progress without noise, gimmicks, or guesswork. The app supports a highly personalised online coaching experience built around The CORE4 Habit Acquisition System, combining training, nutrition, recovery, and lifestyle habits into a single, guided system. Everything inside The CORE4 Members App is tailored to the individual and adjusted as real-world feedback comes in. This is not a collection of generic plans. It’s a place where strategy is applied, refined, and maintained over time. What The CORE4 Members App helps you do: Train with structure and intent - Access your personalised workout plan, designed around your goals, current ability, and recovery capacity. Each phase is adjusted as your body adapts, ensuring training remains effective and sustainable. Manage nutrition without unnecessary restriction - Follow a clear nutrition structure that supports fat loss, performance, and long-term adherence. Plans are built to fit real lifestyles and evolve based on progress, energy, and feedback. Build habits that support results - Track daily behaviours such as steps, sleep, hydration, and consistency. These habits form the foundation that keeps progress moving outside the gym. Stay connected through in-app coaching - Communicate directly with your coach through in-app messaging. Weekly check-ins allow feedback to be reviewed and plans refined with precision. See the bigger picture - The CORE4 Members App brings training, nutrition, recovery, and mindset into one place, making it easier to stay consistent and understand how each piece supports your progress. Designed for long-term progress The CORE4 Members App is built for those who value clarity, structure, and guidance. The focus is not on quick fixes, but on creating a system that can be maintained, adjusted, and progressed over time. Access to The CORE4 Members App is provided as part of the online coaching experience with Coach Caelum. Apply online to gain access. *App access requires a paid coaching plan. Terms Of Use: https://kahunas.io/terms-conditions Privacy Policy: https://kahunas.io/privacy Medical Disclaimer: This app does not provide medical advice, diagnoses, or treatment. The information and guidance provided within the app are for general fitness and wellbeing purposes only. Always seek the advice of your physician or other qualified healthcare provider before starting any exercise program, changing your nutrition, or making decisions regarding your health.
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Verdict
Coach Kostas Corner and CORE4 Members are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Coach Kostas Corner sells 1 in-app purchase, starting at $200.00 per month and CORE4 Members sells 1 in-app purchase, starting at $299.99 per month. Whichever you choose, the download price is not the number that matters.
Coach Kostas Corner ships an update every 2 months, CORE4 Members monthly. The most recent releases landed on October 30, 2026 and October 24, 2026 respectively.
| Parameter | Coach Kostas Corner | CORE4 Members |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 months | Monthly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 51 MB | 57 MB |
| Age rating | 17+ | 4+ |
| Developer | Konstantinos Kopsinis | Coach Caelum |
In-app purchases
Coach Kostas Corner
- Monthly Coaching$200.001 Month
CORE4 Members
- The CORE4 Framework$299.991 Month
Questions
Is Coach Kostas Corner free?
Is CORE4 Members free?
Do Coach Kostas Corner or CORE4 Members have ads?
Which is updated more often, Coach Kostas Corner or CORE4 Members?
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