Comparison

unFit.io vs Cornerstone Strength

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

Head to head
About

unFit.io

Features
Read full description

unFit.io is a lightweight and user-friendly workout tracker designed to capture your progress as swiftly as you can open the app. It sets itself apart from typical fitness apps by eliminating the need to start or end workout sessions. Simply add sets to your exercises whenever you perform them, ensuring you never forget to log a set again. --- Key Features of unFit.io: ==No Signup Required== Jump straight into tracking without any account setup. ==Unlimited Workouts and Exercises== Create as many workouts and exercises as you need, with no restrictions. ==No Subscription Fees== Enjoy full access without the need for a monthly subscription. ==No Popup Ads== No annoying popups that force you to watch an ad ==Ad-free Version== An ad-free version is available for purchase if you prefer an entirely ad-free environment. ==Full Feature Access== Organize and manage your workouts with no paywalls for essential features. --- Download today.

About

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.

Highlights
  • 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
Features
Read full description

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.

Screenshots

unFit.io4 screens
Cornerstone Strength4 screens

Verdict

The call

The clearest difference is ads: Cornerstone Strength at none against unFit.io's shown. unFit.io's advantage is iOS requirement (13.4 vs 15.1). On price, 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. unFit.io sells 1 one-off in-app purchase and Cornerstone Strength sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

Scorecard2 real differences · 8 level
unFit.io versus Cornerstone Strength: the parameters behind the verdict, then further details
ParameterunFit.ioCornerstone Strength
PriceFreeFree
Rating—5.0 (10 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—10 — better
Update frequency—Every 3 weeks
AdsYesNo — better
In-app purchasesYesYes
Monetization—Subscription
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS13.4 — better15.1
Further details — not scored
Size33 MB59 MB
Age rating4+4+
DeveloperJoseph ContumelioK&G Apps

In-app purchases

1 purchases

unFit.io

One-time1
  • Remove ads$7.29
2 purchases

Cornerstone Strength

Subscriptions2
  • Monthly Subscription$7.991 Month
  • Yearly Subscription$49.991 Year

Questions

Is unFit.io free?
unFit.io is free to download, with in-app purchases available.
Is Cornerstone Strength free?
Cornerstone Strength is free to download, with in-app purchases available.
Do unFit.io or Cornerstone Strength have ads?
unFit.io shows ads; Cornerstone Strength does not.

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