Cornerstone Strength vs Compound
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Cornerstone Strength
This app helps users track workouts, build strength, and gain muscle with custom programs and advanced analytics. It offers detailed logging for exercises, progress tracking, and a large exercise library.
- Custom workout program creation
- Advanced training algorithm
- Detailed workout logging (weight, reps, RPE, RIR)
- Progress charts and analytics
- Extensive exercise library
- Personal record detection
- Workout sharing
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STOP GUESSING. TRAIN WITH CONFIDENCE. Cornerstone Strength helps you know what to do next, and understand why. Every set you log becomes useful context: what the plan called for, how you performed, how hard it felt, and how your training is trending. Cornerstone turns that context into clear guidance while keeping you in control. KNOW WHAT TO DO NEXT Get your next weight, sets, and reps suggested right on the workout screen. Smart Suggestions use your recent performance, logged effort (RPE/RIR), time between sessions, and program targets. Every suggestion includes a plain-language reason. Apply it with one tap, adjust it, or keep your plan. It is a starting point, not a rule. EVERY WORKOUT HAS A PURPOSE Choose from programs written by real strength coaches using proven periodization for strength, hypertrophy, athleticism, or a mix. Enter your numbers and train, customize a program, or build your own from scratch. Percentage-based programs calculate working weights from your training maxes automatically, so the plan is ready when you are. SEE THE TREND BEFORE THE NEXT PR Understand whether the work is working: - Estimated 1RM (e1RM) trends - Training volume by muscle group - Weekly volume and muscle-balance insights - Personal-record history and automatic PR detection - Workout consistency and streaks - Month, 3-month, year, and all-time views LOG WITHOUT LOSING YOUR FLOW - Weight, reps, RPE, RIR, and AMRAP support - Previous performance beside today’s set - Structured program sessions or quick workouts - Background rest timer with audio and vibration alerts - Exercise swaps, notes, and duration tracking - Band tracking for accommodating resistance - Apple Health workout sync 500+ EXERCISES Find movements for a commercial gym, garage gym, or anywhere in between. Browse by muscle group or equipment, including barbells, dumbbells, kettlebells, machines, cables, bodyweight, trap bars, specialty bars, and more. SHARE THE WORK Turn a completed workout into a clean card with PRs, top lifts, and muscle-group balance. Share it to Instagram Stories, save it to Photos, or send it to a training partner. START WITH 30 DAYS OF PRO- FREE Every new account gets 30 days of Cornerstone Pro with every program, Smart Suggestions, and full analytics unlocked. No credit card required. When the 30 days end, keep logging free forever or subscribe to keep Pro. BUILT FOR LIFTERS - Dark and light themes - Fast, focused interface - No ads Cornerstone does more than remember what you lifted. It helps the next training decision feel clear. --- Privacy Policy: https://cornerstonestrength.app/privacy Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Subscription details: - Cornerstone Pro Monthly: $7.99/month - Cornerstone Pro Annual: $49.99/year Payment will be charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless it is canceled at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your account settings on the App Store after purchase.
Compound
This workout app simplifies strength training with a single, progressive routine. It automatically tracks your progress, adjusts weights, and includes warm-ups and cool-downs. Log workouts precisely as you perform them, with Apple Watch integration for seamless tracking.
- Automated double progression weight increases
- Automatic warm-up and cool-down routines
- Customizable rep ranges and weight jumps
- Real-time Apple Watch mirroring
- Flexible logging for various exercise types
- Private, on-device data storage
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Compound is a workout app with exactly one workout in it. NO MORE BOOKKEEPING Compound runs on double progression, a tried-and-true method for getting stronger. We just handle the bookkeeping. Hit your target reps, and the app bumps the target up for next time. Hit the top of the rep range? The weight goes up (5 lbs for big lifts, 2.5 lbs for accessories) and your reps reset. If you miss a set, just long-press to log what you actually did, and the app holds the weight steady until you're ready. No spreadsheets, no thinking. If you want a slower climb, you can tell the app to require up to five successful sessions before it forces a weight jump. MORE THAN JUST MOVING WEIGHT Every workout starts with an actual warm-up: three minutes of timed cardio, dynamic movements, and ramp-up sets calculated directly from your first working weight. Rest timers kick in automatically between sets. Ten minutes of guided mobility wraps up the day. You can tweak or turn off any of this, but the defaults are designed to give you a complete, balanced program. TRACKS LIKE REAL LIFE Not every exercise fits perfectly into a generic "reps and weight" counter. Tap to log your squats. Run the built-in stopwatch for dead hangs and let it save your PR. Use the countdown for planks. Every exercise is tracked exactly the way you actually do it. LEAVE YOUR PHONE IN YOUR POCKET The Apple Watch app mirrors your session in real time. Log sets, skip rests, and adjust the weight on the bar right from your wrist. Your phone and watch stay perfectly synced, and everything gets sent straight to Apple Health, complete with your heart rate and active calories. YOURS, PRIVATELY No account. No sign-up. Nothing is uploaded to a server that reads your training. Your history is stored on your device, full stop, and you can export the whole of it as a file at any time, subscribed or not. Start by entering the weights you lift today, or start everything at zero and let the progression build. Either way, the next session is always ready. SUBSCRIPTION Compound Standard unlocks the whole app and comes in two terms, monthly and annual, both opening with a 14-day free trial. Prices are shown in your own currency on the subscription screen inside the app before anything is charged. Payment is charged to your Apple Account at confirmation. It renews automatically unless auto-renew is switched off at least 24 hours before the current period ends, and can be managed or cancelled any time in Settings › Apple Account › Subscriptions. Privacy Policy: https://trycompound.cc/privacy Terms of Use: https://trycompound.cc/terms Terms of Use (Apple standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is monetization model: Compound at freemium against Cornerstone Strength's subscription. Compound also leads on update cadence (weekly vs every 3 weeks). Cornerstone Strength's advantage is ratings volume (10 vs 1) and iOS requirement (15.1 vs 17.0). On price, rating, ads and in-app purchases 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. Cornerstone Strength sells 2 in-app purchases, starting at $7.99 per month and Compound sells 3 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.
On the App Store both sit at effectively the same score — 5.0 for Cornerstone Strength against 5.0 for Compound. That said, the two scores are not equally well evidenced: Cornerstone Strength has 10 ratings behind it against 1, so its average is the more settled of the two.
Cornerstone Strength ships an update every 3 weeks, Compound weekly. The most recent releases landed on October 24, 2026 and October 18, 2026 respectively.
| Parameter | Cornerstone Strength | Compound |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (10 ratings) | 5.0 (1 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 10 — better | 1 |
| Update frequency | Every 3 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Subscription | Freemium — better |
| Devices | iPhone, iPad, iPod — better | iPhone, Apple Watch |
| Requires iOS | 15.1 — better | 17.0 |
| Further details — not scored | ||
| Size | 59 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | K&G Apps | SCOTT BERKLEY SHUMAKER |
Customer experience
Cornerstone Strength
Compound
In-app purchases
Cornerstone Strength
- Monthly Subscription$7.991 Month
- Yearly Subscription$49.991 Year
Compound
- Progression · Monthly14 Days trial$4.991 Month
- Progression · Annual14 Days trial$29.991 Year
- Progression · Lifetime$99.99
Questions
Is Cornerstone Strength free?
Is Compound free?
Which has better reviews, Cornerstone Strength or Compound?
Do Cornerstone Strength or Compound have ads?
Which is updated more often, Cornerstone Strength or Compound?
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