Comparison

Kin | Performance Intelligence vs RYZN

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

Head to head
About

Kin | Performance Intelligence

Features
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BRING YOUR A-GAME. ANYWHERE. KIN is the next gen training diary — built to find what truly drives your best performance and turn it into action. Making every day better. Built with elite athletes, KIN combines the proven ritual of the training diary with your wearable data, voice check-in and unique real-time performance intelligence. 30 seconds a day. Instant value back. Check in by voice in the morning and after training, competition or whenever something matters. Capture what your wearable can't see — how you felt, what happened, what worked, what didn't. KIN connects that context with your training, recovery and biometric data to uncover the patterns behind your performance. Giving you a distinctive performance edge. Every check-in delivers immediate value. Your performance edge compounds. The longer you use KIN, the more it understands what drives your performance. 7 days is an advantage. 90 days is unfair. THE TRAINING DIARY FOR A NEW ERA The training diary has always helped athletes reflect on what happened. KIN goes further. Much further. It connects: • How you feel • How you train • How you recover • What happens in your life • How you actually perform Then turns those patterns into actionable insight. In real time. Unlocking peak performance. Wearables are excellent at measuring sleep, recovery, activity and training. But performance is shaped by more than biometrics. Pressure. Confidence. Travel. Work. Motivation. Relationships. Preparation. What happened yesterday. What matters tomorrow. KIN brings it together. Your wearable has the data. You have the context. KIN finds your edge. WHAT KIN GIVES YOU Daily performance insights Every check-in gives you something back — insights you can act on today. A smarter training diary Log training and performance naturally by voice, without forms or endless metrics. Your complete performance history See training, competition, recovery and context together — not in separate apps. Patterns only you have KIN learns what consistently lifts your performance and what quietly holds it back. A compounding performance edge Every day adds context. Every performance sharpens the picture. BUILT BY ELITE ATHLETES KIN was created with professional athletes around one question: What actually drives peak performance when it matters most? Now that same Performance Intelligence becomes accessible to all high-performers serious about performing at their best – whatever the opportunity. KIN finds your edge. Making every day better. Now bring your A-game. Anywhere.

About

RYZN

This fitness app helps lifters track workouts and meals with advanced features like AI-powered meal identification and machine recognition. It offers real-time heart rate monitoring, set tracking from your Apple Watch, and detailed muscle group analysis. Designed for intentional eating and focused training, it provides workout summaries and data privacy.

Highlights
  • AI meal identification from photos
  • Exercise machine recognition via camera
  • Apple Watch workout tracking
  • Live heart rate monitoring
  • Detailed muscle group analysis
  • Automatic set cascading
  • Workout summary sharing
Features
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RYZN is the fitness tracker built for lifters who actually lift, and eat with intention. Snap a meal photo and watch RYZN identify it in two seconds. Mark a set from your Apple Watch without breaking stride. See your live heart rate on every working set. This is what training apps should have always felt like. Apple Watch, your wrist, your coach Start a workout, mark sets done or to-failure, see live BPM, and watch your rest timer tick down, all from your wrist. A 6-hour heart rate sparkline on the watch face tells you exactly how your body's been responding all day. No double-logging. No second login. 239 exercises, every one demonstrated Barbell, dumbbell, machine, cable, kettlebell, bodyweight and bands. Open any exercise and a short looping clip shows you exactly how it's done, with the working muscle highlighted in your accent color. Seen enough? It folds away the moment you log your first set. Want the full breakdown? Tap the clip. Track everything that matters Log sets, reps, and weight for every exercise. RYZN auto-cascades your last performance so you're not punching in the same numbers every session. Add drop sets with a tap: drop the weight, keep going. Time-based moves like planks and L-sits get a built-in countdown timer. Swap exercises mid-workout without losing your place. Add bodyweight warmups before your working sets, and log cardio with live heart rate and calorie tracking. Don't know the machine? Point your camera at it Walk up to any machine, point your camera, and RYZN names the exercise and loads it into your workout. No more guessing what that contraption in the corner is called. Tap a tag, start the set RYZN Tags are stickers that go on gym equipment. Tap one with your phone and the exercise opens, ready to log. They work for people who don't have RYZN too: tapping a tag opens that exercise, or the full list of movements for that machine, right in the browser. Fuel like a pro, not a calorie counter Take a photo of your meal and RYZN recognizes the food, estimates macros, and logs it. Diet Coke in two seconds. Chipotle bowl in three. Voice-log a snack between sets. Built specifically for people who care about protein, calories, and recovery, not people obsessing over a 50-cal margin on a salad. See your muscles work A dynamic muscle map shows exactly what you're hitting, color-coded by volume so you can spot imbalances at a glance. No more "did I already train shoulders this week?" Drop the muscle map widget on your home screen to see your week's volume and workout count without opening the app. Train with your team Coaches can build programs, assign macros, and see their roster's real logged data. Athletes get a leaderboard, shared goals, and a feed built from actual workouts. Sleep and recovery RYZN reads your sleep alongside your training and heart rate, so rest days are a decision, not a guess. Finish strong Every completed workout ends with a summary card you can share: exercises completed, total volume, muscles trained. Show your work or keep it to yourself. Your data, your account Workouts, meals, and profile data sync to a private RYZN account so you can switch phones, pair an Apple Watch, or train across multiple devices. Delete everything from Settings any time. We never sell or share your data, period. Designed for the dark RYZN is built in dark mode because nobody wants a flashlight in their face between sets. Students: verified university students get RYZN at a permanently reduced price. Verify your school email on the subscribe screen. End User License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Kin | Performance Intelligence4 screens
RYZN4 screens

Verdict

The call

The clearest difference is in-app purchases: Kin | Performance Intelligence at none against RYZN's 2. RYZN's advantage is update cadence (every 3 days vs fortnightly). On price, ads, device support and iOS requirement 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. RYZN sells 2 in-app purchases, starting at $9.99 per month. Kin | Performance Intelligence asks for nothing beyond the download.

UpkeepUpdate frequency

Kin | Performance Intelligence ships an update fortnightly, RYZN every 3 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
Kin | Performance Intelligence versus RYZN: the parameters behind the verdict, then further details
ParameterKin | Performance IntelligenceRYZN
PriceFreeFree
Rating—5.0 (6 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—6 — better
Update frequencyFortnightlyEvery 3 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPadiPhone, Apple Watch
Requires iOS16.0 — better17.0
Further details — not scored
Size56 MB64 MB
Age rating12+4+
DeveloperKin Wellness ABJack Steelberg

In-app purchases

None

Kin | Performance Intelligence

No in-app purchases

2 purchases

RYZN

Subscriptions2
  • Pro Monthly3 Days trial$9.991 Month
  • Pro Yearly3 Days trial$79.991 Year

Questions

Is Kin | Performance Intelligence free?
Kin | Performance Intelligence is free to download, with no in-app purchases.
Is RYZN free?
RYZN is free to download, with in-app purchases available.
Do Kin | Performance Intelligence or RYZN have ads?
Neither Kin | Performance Intelligence nor RYZN shows ads.
Which is updated more often, Kin | Performance Intelligence or RYZN?
Kin | Performance Intelligence ships an update fortnightly, and RYZN every 3 days. Most recently, Kin | Performance Intelligence was updated on October 30, 2026 and RYZN on October 31, 2026.

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