Comparison

Circuit Works PRO vs Source Performance

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

Head to head
About

Circuit Works PRO

Features
Read full description

With the Circuit Works PRO App, you can start tracking your meals, measuring results, and achieving your fitness goals, all with the help of a nutrition coach. - Access training & meal plans and track workouts - Schedule 1-1 weekly virtual coaching appointments and in-studio 3D body scans - Track progress towards your goals - Manage your nutrition intake as prescribed by your coach - Set health and fitness goals - Message your coach in real-time - Track body measurements and take progress photos - Get push notification reminders for appointments, activities, and goals - Connect to wearable devices like Apple Watch (synced to Health app), Fitbit and Withings to sync body stats instantly Download the app today!

About

Source Performance

This app provides personalized workout programs and tracks your fitness journey. Monitor workouts, nutrition, habits, and measurements with coach support. Achieve your health goals with guided exercises and progress tracking.

Highlights
  • Access and track training plans
  • Follow exercise and workout videos
  • Track meals and food choices
  • Monitor daily habits
  • Set and track health goals
  • Message your coach in real-time
  • Track body measurements and progress photos
Features
Read full description

With the Source Performance App, you will have access to workout programs designed specifically to help you reach your fitness and health goals! You can follow & track your workouts, your nutrition, your lifestyle habits, measurements and results–all with the help of your coach. FEATURES: - Access training plans and track workouts - Follow along to exercise and workout videos - Track your meals and make better food choices - Stay on top of your daily habits - Set health and fitness goals and track progress towards your goals - Gain milestone badges for achieving new personal bests and maintaining habit streaks - Message your coach in real-time - Track body measurements and take progress photos - Get push notification reminders for scheduled workouts and activities - Connect your Apple Watch to track workouts, steps, habits, and more right from your wrist - Connect to other wearable devices and apps like the Apple Health App, Garmin, Fitbit, MyFitnessPal, and Withings devices to track workouts, sleep, nutrition, and body stats and composition Download the app today!

Screenshots

Circuit Works PRO4 screens
Source Performance4 screens

Verdict

The call

The clearest difference is iOS requirement: Circuit Works PRO at 12.4 against Source Performance's 15.1. On price, update cadence, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Circuit Works PRO ships an update every 6 weeks, Source Performance every 2 months. The most recent releases landed on September 17, 2026 and September 18, 2026 respectively.

Scorecard1 real difference · 9 level
Circuit Works PRO versus Source Performance: the parameters behind the verdict, then further details
ParameterCircuit Works PROSource Performance
PriceFreeFree
Rating—5.0 (9 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—9 — better
Update frequencyEvery 6 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPod, Apple WatchiPhone, iPad, iPod, Apple Watch
Requires iOS12.4 — better15.1
Further details — not scored
Size168 MB180 MB
Age rating4+4+
DeveloperCircuit Works Inc Santa MonicaSource Performance LLC

In-app purchases

None

Circuit Works PRO

No in-app purchases

None

Source Performance

No in-app purchases

Questions

Is Circuit Works PRO free?
Circuit Works PRO is free to download, with no in-app purchases.
Is Source Performance free?
Source Performance is free to download, with no in-app purchases.
Do Circuit Works PRO or Source Performance have ads?
Neither Circuit Works PRO nor Source Performance shows ads.
Which is updated more often, Circuit Works PRO or Source Performance?
Circuit Works PRO ships an update every 6 weeks, and Source Performance every 2 months. Most recently, Circuit Works PRO was updated on September 17, 2026 and Source Performance on September 18, 2026.

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