Comparison

iFour Core vs Plesso

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

Head to head
About

iFour Core

This app offers a personalized core workout program designed by physical therapists. It adapts to your individual anatomy and fitness level, providing daily workouts under 10 minutes with video demonstrations. Access nutrition guides and trainer support as a member.

Highlights
  • Personalized core workout program
  • Physical therapy approved exercises
  • Daily workouts under 10 minutes
  • Video demonstrations of exercises
  • Nutrition guides and support
  • Fitness test for customized plans
Features
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Every individual’s anatomy is different which is why we have designed a customizable, physical therapy approved core program. The iFour Core app addresses specific areas of your core to help you develop the strongest core imaginable without injury. Each workout is under 10 minutes, is suitable for all fitness levels, and can take place in the home or at the gym. As a member of the iFour Core app, you will receive new workouts every day, nutrition guides, and support. FREE 7-day trial for new members! HOW IT WORKS: After completing the iFour Core fitness test, you will get a core strength rating. This rating is broken up based on muscle fibers worked (intrinsic, rectus, obliques & transverse). The iFour Core app customizes the exercises each day based on your fitness test performance and current level of core strength. WHAT MAKES US DIFFERENT: Life is full of surprises, plateaus, and challenges. We created this app with this in mind allowing you to recalibrate your individualized workout formula at any point you feel necessary. Unlike other programs, this is not simply just hitting “reset,” and repeating the same exercises from previous days. This is a full recalculated algorithm taking you from your new “starting point” with a proven plan of attack to help you once again improve. iFour Core Features: Workout & Fitness Planning • Functional yet challenging core rotations, ranging from 5-10 Minutes! • Includes regressions to decrease difficulty and progressions to advance the exercises as you improve. • 323 unique core exercises. • 137 additional core exercises with 6 different pieces of equipment to choose from. • Video demonstrations of all 323 core exercises. • Designed for all levels, whether you are coming out of physical therapy or an elite athlete! • Take the fitness test and as you get stronger, unlock more core exercises prescribed for you. Tracking & Fitness Motivation • Workout along with J, a seasoned trainer for celebrities, professional athletes, and others. • Track your daily progress in both your Fitness Test and Workout History. • Share your results on your favorite social media platform. • Keep up to date and learn with the latest iFour videos. Subscription Pricing & Terms iFourCore is free to download. Ongoing use requires an active subscription, available on a monthly or annual basis. New customers are eligible for a 7-day free trial. Annual subscriptions are billed the total fee from the purchase date. Monthly subscriptions are billed per month. Payment will be charged to your credit card through your iTunes account at confirmation of purchase. Subscription renews automatically unless cancelled at least 24 hours prior to the end of the subscription period. There is no increase in price when renewing. Subscriptions can be managed and auto-renewal turned off in Account Settings in iTunes after purchase. Once purchased, refunds will not be provided for any unused portion of the term. Read our full Terms and Conditions & Privacy Policy: https://www.ifourlife.com/

About

Plesso

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Plesso is your emotional intelligence and mental health companion. Through guided audio sessions, reflective journaling, breathing exercises, daily affirmations, mood tracking, and personalized routines, you'll develop emotional intelligence and gratitude, learn how to understand how you feel, manage stress, prevent burnout, and reconnect with yourself. Key features: • Guided audio sessions: 3 hours of narrated audio that explore your deepest emotional patterns. Dive into specific challenges: overcome anger, beat anxiety and depression, manage panic attacks, prevent burnout, improve sleep, and unlock your creative power through guided sessions. • Guided journaling & emotional exploration: 70+ guided journaling templates designed to help you process emotions, discover patterns in how you feel, and gain deeper insights into your inner world. • Build personalized routines: create your own daily rituals for morning, afternoon, and evening to support your emotional wellness. Choose from guided templates or build custom routines using your favorite Plesso tools. Add breathing and journaling exercises, affirmations, or audio sessions directly into your routine. • Mood tracking & emotional awareness: track how you feel daily with detailed mood check-ins. Discover patterns in your emotions and understand what's really affecting your emotional well-being. • Breathing exercises: calming breathing techniques to reset your nervous system, unwind, and find immediate relief when emotions overwhelm you. • Affirmations & reframing: 200+ affirmations across multiple life areas to shift your mindset and build lasting positivity in how you feel. • Shadow work & inner healing: explore the deeper aspects of yourself through guided exercises and programs that help you integrate your shadow self and build lasting emotional resilience. • Privacy oriented: your data stays private and secure, stored locally on your device, never sold or shared. We only use your email address for sign-in. Your journal entries are completely private and only visible to you. We do not have access to them, and they are never shared with third parties. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

iFour Core4 screens
Plesso4 screens

Verdict

The call

The clearest difference is update cadence: Plesso at every 11 days against iFour Core's every 2 months. iFour Core's advantage is iOS requirement (11.0 vs 15.1). On price, ads, in-app purchases 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. iFour Core sells 2 in-app purchases, starting at $5.99 per month and Plesso sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

iFour Core ships an update every 2 months, Plesso every 11 days. The most recent releases landed on June 4, 2026 and September 5, 2026 respectively.

Scorecard2 real differences · 8 level
iFour Core versus Plesso: the parameters behind the verdict, then further details
ParameteriFour CorePlesso
PriceFreeFree
Rating5.0 (28 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings28 — better—
Update frequencyEvery 2 monthsEvery 11 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPod
Requires iOS11.0 — better15.1
Further details — not scored
Size39 MB72 MB
Age rating4+4+
Developerifour.life, LLCOleksandr Dudar

In-app purchases

2 purchases

iFour Core

Subscriptions2
  • Monthly7 Days trial$5.991 Month
  • Annually7 Days trial$29.991 Year
2 purchases

Plesso

Subscriptions2
  • Monthly$3.991 Month
  • Yearly$24.991 Year

Questions

Is iFour Core free?
iFour Core is free to download, with in-app purchases available.
Is Plesso free?
Plesso is free to download, with in-app purchases available.
Do iFour Core or Plesso have ads?
Neither iFour Core nor Plesso shows ads.
Which is updated more often, iFour Core or Plesso?
iFour Core ships an update every 2 months, and Plesso every 11 days. Most recently, iFour Core was updated on June 4, 2026 and Plesso on September 5, 2026.

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