Comparison

FITNESS SF vs Sigma Sets

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

Head to head
About

FITNESS SF

Streamline your gym experience with easy QR check-ins, class schedules, and nutrition coaching. Manage your membership, track your progress, and stay motivated on your fitness journey.

Highlights
  • QR code check-in
  • Class schedule viewing
  • Nutrition coaching
  • Membership management
  • Visit history tracking
  • Check-in streaks
Features
Read full description

Your Fitness Journey, Reimagined. The all-new FITNESS SF app is here to streamline your gym experience and keep you motivated. Whether you’re training on the floor at one of our premier Bay Area locations or working out from home, everything you need to succeed is now in one place. Fast & Intuitive Experience ● Easy QR Check-In: No more cards or tags. Simply open the app, scan your unique QR code at the front desk, and start your workout instantly. ● Check-In Streaks: Consistency is the key to results. Track your progress and keep your streak alive every time you visit the club. ● Modern UI: Enjoy a clean, easy-to-use interface that gets you the information you need with fewer taps. World-Class Workouts & Coaching ● View Group Fitness Classes: Check real-time schedules for HIIT, Yoga, Strength Training, and ZUMBA at any of our locations. ● Nutrition Coaching: Achieve a total-body transformation with integrated nutrition guidance and expert coaching to fuel your performance, provided by EatLove. Membership at Your Fingertips ● Total Management: Update your billing, view your visit history, and manage your account details with ease. FITNESS SF is more than a gym; it’s a community dedicated to your success. Download the new app today and take your routine to the next level

About

Sigma Sets

This app helps you track your workouts, compete for personal records, and share routines with friends. It offers smart progression suggestions and insights into your training trends, all for free.

Highlights
  • Rank up system for workouts
  • Compete for personal record zones
  • Social features to share workouts
  • Log sets, reps, and weight
  • Smart progression recommendations
  • Automatic PR detection
  • Built-in rest timer
Features
Read full description

Sigma Sets is a FREE workout tracker built to max your gains and get you addicted to working out. No subscriptions, no ads, no paywalls. CLIMB THE RANKS Every workout ranks you up. 12 ranks. Chud to Sigma. Earn your rank as you put time in the Gym COMPETE FOR PR ZONES Finish a workout and your lift is the best in the zone in your name goes on the board - real named neighborhoods, towns, and cities. Hold your ground or take somebody else's. FRAME MOG YOUR FRIENDS Add friends and see their workouts, give props, and share any workout or routine with a link they can take as their own plan. TRACK YOUR LIFTS Log sets, reps, and weight for any exercise. Track regular sets, drop sets, super sets. Build custom workout templates that remember your last numbers so you can load up and go. SMART PROGRESSION Science-based weight and rep recommendations for your next set. Hit your target reps at an easy effort? The app tells you when to go heavier. No guesswork, just progress. HIT MORE PRs Automatic personal record detection for weight, volume, and reps. See exactly when you're getting stronger. REST YOUR WAY Built-in rest timer. Go when you're ready. INSIGHTS THAT MATTER Weekly volume, workout frequency, and strength trends. See the big picture without drowning in charts. YOUR WORKOUTS, YOUR WAY Create templates from scratch or start with presets. Reorder exercises, adjust sets, add notes — total control. FREE. ACTUALLY FREE. No subscription, no locked features, no catch. Download it and lift.

Screenshots

FITNESS SF4 screens
Sigma Sets4 screens

Verdict

The call

The clearest difference is review sentiment: Sigma Sets at 100% against FITNESS SF's 4%. Sigma Sets also leads on rating (5.0 vs 2.3) and update cadence (every 11 days vs every 4 weeks). FITNESS SF's advantage is in-app purchases (none vs 1). On price, ratings volume, ads and monetization model 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. Sigma Sets sells 1 one-off in-app purchase. FITNESS SF asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Sigma Sets holds the better App Store score, 5.0 against 2.3. Both are backed by a comparable volume of ratings — 3 and 3 respectively. Written reviews point the same way: 4% of FITNESS SF's written reviews are positive against 100% of Sigma Sets's.

UpkeepUpdate frequency

FITNESS SF ships an update every 4 weeks, Sigma Sets every 11 days. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
FITNESS SF versus Sigma Sets: the parameters behind the verdict, then further details
ParameterFITNESS SFSigma Sets
PriceFreeFree
Rating2.3 (3 ratings)5.0 (3 ratings) — better
Positive reviews4.4% of reviews100.0% of reviews — better
Number of ratings33
Update frequencyEvery 4 weeksEvery 11 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS15.615.1 — better
Further details — not scored
Size75 MB107 MB
Age rating4+4+
DeveloperFitness SFWRBO LLC

Customer experience

FITNESS SF

Written reviews45 reviews
Positive4.4%
Neutral2.2%
Negative93.3%

Sigma Sets

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

FITNESS SF

No in-app purchases

1 purchases

Sigma Sets

One-time1
  • SigmaSets Premium$44.99

Questions

Is FITNESS SF free?
FITNESS SF is free to download, with no in-app purchases.
Is Sigma Sets free?
Sigma Sets is free to download, with in-app purchases available.
Which has better reviews, FITNESS SF or Sigma Sets?
Sigma Sets is rated higher. FITNESS SF averages 2.3 out of 5 from 3 ratings, while Sigma Sets averages 5.0 from 3 ratings.
Do FITNESS SF or Sigma Sets have ads?
Neither FITNESS SF nor Sigma Sets shows ads.
Which is updated more often, FITNESS SF or Sigma Sets?
FITNESS SF ships an update every 4 weeks, and Sigma Sets every 11 days. Most recently, FITNESS SF was updated on November 9, 2026 and Sigma Sets on October 31, 2026.

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