Caliber vs Arnold Split
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Caliber
This app offers science-based strength training with features for muscle building, weight loss, and fitness improvement. It provides personalized workouts, exercise tutorials, and community features. Optional upgrades offer advanced plans, nutrition targets, and 1-on-1 coaching.
- Personalized workout creation and tracking
- Extensive exercise library with video tutorials
- Workout Circles for training with friends
- Apple Health integration
- AI-powered training insights
- Coach-designed training plans
- Strength Score and balance metrics
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Caliber is a science-based strength training app that combines resistance training, cardio, nutrition, and habit formation to help you build muscle, lose weight, and improve your overall fitness - for good. TRAIN YOUR WAY • Free Version. Create and track unlimited workouts, access 800+ exercises, and train solo or with friends. • Caliber Plus. Maximize your results with coach-designed training plans, personalized progress tracking, nutrition targets and more. • Premium Coaching. Get 1-on-1 guidance from an elite-level personal trainer with a fully customized training and nutrition plan, in-app chat + video messaging with your coach and weekly progress reviews to keep you on track. CALIBER FEATURES (FREE VERSION) • Personalized Workouts. Create and track an unlimited number of workouts tailored to your goals. No gym required. • Detailed Exercise Tutorials. Learn proper form with step-by-step videos and pro tips from Caliber coaches. • Workout Circles. Train with friends and family in private workout chats. When you hit a personal best, it's shared with the group. • Apple Health Integration. Sync your cardio, nutrition, steps and body stats from your wearable or connected device. • Connect to AI. Sync your training data with ChatGPT and Claude for personalized insights and training analysis. UNLOCK MORE WITH CALIBER PLUS (OPTIONAL UPGRADE) • Coach-Designed Training Plans. Choose from 120+ structured plans tailored to your goals, experience level and schedule. • Strength Score. Measure how strong you are relative to your potential for your age and gender. • Strength Balance. Improve your posture and mobility by optimizing your training across key muscle groups. • Caliber Lessons. Gain expert insights on training and nutrition to accelerate your progress. • Advanced Training Features. Get personalized nutrition targets, create custom exercises and supersets, swap exercises, upload progress photos, and more. PREMIUM COACHING (OPTIONAL UPGRADE) • Work with an Elite-Level Coach. Train 1-on-1 with a dedicated coach to achieve your full potential in the gym and beyond. Caliber coaches are highly vetted, accredited personal trainers among the top 1% in their field. • Fully Personalized Plan. Your coach will design a training and nutrition program just for you based on your goals, experience and lifestyle. • Daily Motivation & Expert Guidance. Stay on track with in-app messaging, video form reviews, and individualized guidance. • Weekly Progress Reviews. Get in-depth analysis from your coach to optimize your training. • Fast Response Times. Your coach is available 24/7, typically replying within a few hours. • Guaranteed Results. On average, Caliber members improve their body composition by 20% or more within 12 weeks. If you don't see results, we'll refund the cost of the program. SEE WHAT OUR MEMBERS SAY • For detailed reviews from real Caliber members, visit our TrustPilot page at https://www.trustpilot.com/review/caliberstrong.com Terms of Use: https://caliberstrong.com/terms-of-service/ Privacy Policy: https://caliberstrong.com/privacy-policy/
Arnold Split
Follow the legendary 6-day push/pull/legs program designed by Arnold Schwarzenegger. Track your weights, detect personal records, and monitor your progress with detailed workout history and volume tracking.
- Pre-built Arnold program
- Smart weight tracking
- Personal record detection
- Rest timer with haptics
- Progress tracking
- Workout history log
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Walk into the gym knowing exactly what to lift. Arnold Split plans every set, rep and weight of the classic 6-day bodybuilding split, and raises the weight when you've earned it. It looks like a paper training log. Open the book, see today's page, and lift. Every set you tap is written down. The weight goes up when you've earned it and backs off when you need it. THE PROGRAM Junior Arnold: six lifts a day, straight sets. Chest & Back, Shoulders & Arms and Legs, each twice a week, Sunday off. Tell it how long you've been lifting and it sets your starting weights, whether you're new or years in. Every exercise comes with sets, reps and a hand-drawn figure of the lift. Bench taken, or prefer dumbbells or a machine? Swap any exercise for a built-in alternative. EARN THE GOLDEN ERA Finish one full cycle of Junior Arnold and you unlock The Golden Era: supersets, daily abs and new B days. PROGRESSION THAT RUNS ITSELF Hit every rep and next session's weight goes up. Miss three sessions in a row and the app deloads by 10% so you can build back up. No spreadsheets, no guessing. BUILT FOR THE GYM FLOOR • Tap a set to log it, hold it to change reps or weight, tap again to undo • Rest timer that names your next set and alerts you even when the phone is locked • Plates per side, shown under the weight of the lift you're on • Warm-up sets calculated for every lift • Pounds or kilograms, with the right bar and plates for each • The screen stays awake for the whole session A LOG WORTH KEEPING • Every session on its own page, with a line for how it went • Personal records spotted automatically, and a records board for every lift • Progress by muscle: the sets you logged this week against what the program planned • Milestone stamps. Four of them earn a magazine cover: 100 workouts, the 500 Club, a 12-week streak and the Golden Era • A recap of your week every Sunday STAY CONSISTENT • Weekly streaks, with one free freeze a month • A reminder when your next workout is due • A summary after every session with your records, what goes up next time, and a card to share YOUR DATA, BACKED UP Sign in with Apple or with a code sent to your email. Your workouts are backed up to your account and restored when you sign in on a new phone. Delete your account any time from Settings. Not affiliated with or endorsed by Arnold Schwarzenegger.
Screenshots
Verdict
The clearest difference is in-app purchases: Arnold Split at none against Caliber's 10. Arnold Split also leads on review sentiment (100% vs 78%). Caliber's advantage is ratings volume (6.1K vs 2) and update cadence (fortnightly vs every 6 weeks). On price, rating, ads 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
Both are free to download. Caliber sells 8 in-app purchases, starting at $3.00 per month. Arnold Split asks for nothing beyond the download.
Arnold Split holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Caliber has 6.1K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 78% of Caliber's written reviews are positive against 100% of Arnold Split's.
Caliber ships an update fortnightly, Arnold Split every 6 weeks. Both last shipped on November 5, 2026.
| Parameter | Caliber | Arnold Split |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (6.1K ratings) | 5.0 (2 ratings) — better |
| Positive reviews | 78.1% of reviews | 100.0% of reviews — better |
| Number of ratings | 6.1K — better | 2 |
| Update frequency | Fortnightly — better | Every 6 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Best chart rank | #165 — better | — |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 15.1 — better | 18.0 |
| Further details — not scored | ||
| Size | 60 MB | 23 MB |
| Age rating | 12+ | 4+ |
| Developer | Caliber Fitness, Inc | HoneyBee |
Customer experience
Caliber
Arnold Split
Bugs and requests
Caliber
Reported bugs
3 issues- Workout data loss when switching between online and offline mode
- Strength score not updating correctly in some cases
- Inability to log weight for certain exercises
Requested features
5 requests- Add ability to create and save custom exercises
- Integrate with more fitness tracking devices and apps
- Improve offline mode to allow full workout tracking
- Provide more flexibility in workout scheduling and planning
- Enhance strength score calculations and explanations
Arnold Split
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Caliber
- Caliber Supporter (Monthly)$3.001 Month
- Caliber Plus (Monthly)$6.001 Month
- Caliber Plus (Monthly)$9.001 Month
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- Caliber Plus (Monthly)2 variants$12.001 Month
- Caliber Plus (Yearly)7 Days trial$36.001 Year
- Caliber Plus (Yearly)7 Days trial$54.001 Year
- Caliber Plus (Yearly)7 Days trial2 variants$72.001 Year
- Caliber Plus (Yearly)1 Month trial$72.001 Year
Arnold Split
No in-app purchases
Questions
Is Caliber free?
Is Arnold Split free?
Which has better reviews, Caliber or Arnold Split?
Do Caliber or Arnold Split have ads?
Which is updated more often, Caliber or Arnold Split?
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