Comparison

KRIO vs Fly Robin

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

Head to head
About

KRIO

Features
Read full description

Krio is an AI-powered fitness tracker that builds personalized workout programs and adapts to your body every single day. Tell Krio your goals, experience level, and available equipment. In seconds, the AI generates a complete training program from a library of 873+ exercises — with optional warmup and cooldown routines built in. SMART DAILY RECOMMENDATIONS Every time you open Krio, it knows exactly what you should train. The muscle fatigue algorithm analyzes your recent sessions, tracks recovery across every muscle group, and recommends the ideal workout for today — or tells you to rest when your body needs it. REAL-TIME WORKOUT TRACKING Log sets, reps, and weights as you train. Krio tracks your progress in real time with a clean interface designed for the gym floor. A global rest timer follows you between exercises so you never lose your place. 873+ EXERCISES WITH DETAILED GUIDES Every exercise comes with step-by-step instructions, muscle activation data, and equipment requirements. Filter by muscle group, equipment, difficulty, or movement pattern to find exactly what you need. MUSCLE RECOVERY MAP See your entire body's recovery status at a glance. The visual muscle map shows which muscles are fresh and ready to train, and which ones need more time. Make smarter decisions about when and what to train. AI WORKOUT GENERATION Need a new program? Describe your goal, pick your equipment, and let the AI build it. Choose to include warmup stretches, cooldown routines, or both. Every generated workout uses real exercises with proper progressions. APPLE HEALTH INTEGRATION Connect Apple Health to bring all your workouts into one place. Krio reads your Apple Watch runs, walks, cycling, and more — then factors them into your daily recommendations. Your cardio counts. PROGRESSIVE OVERLOAD BUILT IN Krio suggests weights and reps based on your history. See your personal records, track volume over time, and keep pushing forward with data-driven progression. WORKS OFFLINE No internet? No problem. Krio works completely offline with local-first storage. Your workouts, programs, and history are always available. Everything syncs automatically when you're back online. WEEKLY PLANNER Assign workouts to specific days of the week. See your training schedule at a glance and build consistency with a structured weekly plan. PROGRAMS THAT GROW WITH YOU Build your own templates or let AI create them. Organize exercises with drag-and-drop, customize sets and reps, and save programs you can repeat and improve on. --- KRIO PRO Unlock unlimited AI workout generation, enhanced daily recommendations with AI reasoning, and priority access to new features. Subscription options: - Monthly Plan: Auto-renewing subscription - Yearly Plan: Auto-renewing subscription (save over 50%) - Lifetime Plan: One-time purchase, unlimited access forever Payment will be charged to your Apple ID account at purchase confirmation. Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current period. You can manage and cancel subscriptions in your Apple ID account settings. No cancellation of the current subscription is allowed during the active period. Privacy Policy: https://krio.app/privacy Terms of Use: https://krio.app/terms

About

Fly Robin

Features
Read full description

Fly Robin reads your activity from Apple Health, and a warm little mascot reacts. You step, Robin flies. You sit still, Robin gets sad. — A streak that grows as you move — A warm, friendly mascot — Your data never leaves your device HOW IT WORKS Fly Robin reads your steps, distance, active energy, and exercise minutes from Apple Health — and nothing else. All data stays on your iPhone, never sent to any server. 5 MASCOT MOODS Robin shifts between 5 moods based on your daily progress: • Celebrating — when you crush the goal • Flying — you're doing great • Walking — staying active • Grumpy — falling behind • Sad — streak at risk THE STREAK SYSTEM Hit your daily step goal and your streak grows by 1. Miss a day? You get 3 monthly restores — use one at the last minute to save your chain. GENTLE NUDGES Robin talks to you based on your day: • Morning: "Good morning, let's start" • Afternoon: "We're falling a bit behind" • Evening: "Streak's at risk — a short walk saves it" All notifications are local. Nothing leaves your device. CELEBRATE & SHARE Hit your goal? Confetti rains, Robin cheers, and "Goal hit!" appears on screen. One tap creates a 9:16 share card for Instagram Stories or WhatsApp. ROBIN PLUS — 7 DAYS FREE With Robin Plus, your monthly restores go from 3 to 6. Save your streak more often, build longer chains. Pricing: • Yearly: $19.99/year (~5 months free vs. monthly) • Monthly: $2.99/month • First 7 days free — cancel anytime Local currency set by Apple. PRIVACY FIRST • No personal data collected • Health data stays on device • No third-party analytics • No trackers • All notifications local DEVICE SUPPORT Fly Robin runs on iPhone only. Apple Health required. CONTACT Questions and feedback: flyrobinapp@gmail.com Move with Fly Robin. https://suleturp.github.io/flyrobin.github.io/terms/

Screenshots

KRIO4 screens
Fly Robin4 screens

Verdict

The call

The clearest difference is update cadence: KRIO at every 3 weeks against Fly Robin's every 2 months. KRIO also leads on iOS requirement (15.1 vs 26.0). 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. KRIO sells 2 in-app purchases, starting at $14.99 per month and Fly Robin sells 2 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

KRIO ships an update every 3 weeks, Fly Robin every 2 months. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 4 level
KRIO versus Fly Robin: the parameters behind the verdict, then further details
ParameterKRIOFly Robin
PriceFreeFree
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPod — betteriPhone
Requires iOS15.1 — better26.0
Further details — not scored
Size109 MB12 MB
Age rating4+4+
DeveloperOphanic Yazilim Teknoloji Ve Danismanlik Anonim SirketiSULE ERDOGAN

In-app purchases

2 purchases

KRIO

Subscriptions2
  • Krio Pro Monthly$14.991 Month
  • Krio Pro Annual7 Days trial$59.991 Year
2 purchases

Fly Robin

Subscriptions2
  • Robin Plus7 Days trial$2.991 Month
  • Robin Plus7 Days trial$19.991 Year

Questions

Is KRIO free?
KRIO is free to download, with in-app purchases available.
Is Fly Robin free?
Fly Robin is free to download, with in-app purchases available.
Do KRIO or Fly Robin have ads?
Neither KRIO nor Fly Robin shows ads.
Which is updated more often, KRIO or Fly Robin?
KRIO ships an update every 3 weeks, and Fly Robin every 2 months. Most recently, KRIO was updated on October 25, 2026 and Fly Robin on October 31, 2026.

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