Comparison

Stelo by Dexcom 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

Stelo by Dexcom

Easily track your glucose levels 24/7 without fingersticks or a prescription. Gain personalized insights to understand how diet and exercise impact your health. This app empowers you to build healthier habits and take control of your well-being.

Highlights
  • 24/7 glucose tracking
  • No fingersticks required
  • Personalized health insights
  • Diet and exercise personalization
  • Form healthy habits
  • No prescription needed
Features
Read full description

Welcome to the revolution in personalized glucose health. The Stelo by Dexcom Glucose Biosensor finally gives you an easy way to track your glucose and form healthy habits. No fingerpicks. No prescription. Just results. Stelo sets the standard in glucose innovation – delivering 24/7 access to personal glucose insights, empowering you to uncover what works for you. Our smartphone* app, gives you the power to personalize your diet and exercise choices, so healthy habits can become second nature.¹ With Stelo, you can revolutionize the way you track your glucose – giving you everything you need to become a healthier you. Stelo Glucose Biosensor required for Stelo by Dexcom app use – sold separately at www.Stelo.com Stelo is indicated for adults 18+ who don’t use insulin. STELO IMPORTANT INFORMATION: Consult your healthcare provide before making any medication adjustments based on your sensor readings. Do not use if you have problematic hypoglycemia. Failure to use Stelo and its components according to the instructions for use provided and to properly consider all indications, contraindications, warnings, precautions, and cautions in those instructions for use may result in your missing a severe hypoglycemia (low blood glucose) or hyperglycemia (high blood glucose) occurrence. If your sensor readings are not consistent with your symptoms, a blood glucose meter may be an option as needed and consult your healthcare provider. Seek medical advice and attention when appropriate, including before making any medication adjustments an/or for any medical emergency. *For Stelo app compatibility information, visit stelo.com/compatibility. ¹ Stelo User Guide: MT-1000421

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

Stelo by Dexcom4 screens
Source Performance4 screens

Verdict

The call

The clearest difference is review sentiment: Source Performance at 100% against Stelo by Dexcom's 18%. Source Performance also leads on rating (5.0 vs 2.5) and device support (4 vs 2). Stelo by Dexcom's advantage is ratings volume (567 vs 9) and chart position (#124 vs unranked). 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.

ReceptionRating · Positive reviews · Number of ratings

Source Performance holds the better App Store score, 5.0 against 2.5. That said, the two scores are not equally well evidenced: Stelo by Dexcom has 567 ratings behind it against 9, so its average is the more settled of the two. Written reviews point the same way: 18% of Stelo by Dexcom's written reviews are positive against 100% of Source Performance's.

UpkeepUpdate frequency

Stelo by Dexcom ships an update every 6 weeks, Source Performance every 2 months. The most recent releases landed on October 5, 2026 and September 18, 2026 respectively.

Scorecard6 real differences · 5 level
Stelo by Dexcom versus Source Performance: the parameters behind the verdict, then further details
ParameterStelo by DexcomSource Performance
PriceFreeFree
Rating2.5 (567 ratings)5.0 (9 ratings) — better
Positive reviews18.1% of reviews100.0% of reviews — better
Number of ratings567 — better9
Update frequencyEvery 6 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
Best chart rank#124 — better—
DevicesiPhone, Apple WatchiPhone, iPad, iPod, Apple Watch — better
Requires iOS18.615.1 — better
Further details — not scored
Size311 MB180 MB
Age rating17+4+
DeveloperDexcomSource Performance LLC

Customer experience

Stelo by Dexcom

All ratings567 ratings
Positive30.0%
Neutral10.6%
Negative59.4%
Written reviews746 reviews
Positive18.1%
Neutral19.7%
Negative62.2%

Source Performance

All ratings9 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Stelo by Dexcom

Reported bugs

3 issues
  • Sensor session ending prematurely
  • Inconsistent data syncing with Apple Health
  • App freezing and crashing issues

Requested features

5 requests
  • Ability to view and export historical glucose data
  • Option to customize glucose target ranges
  • Integration with more fitness/nutrition apps
  • Improved Apple Watch support with complications
  • Enhanced meal and activity tracking features

Source Performance

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Stelo by Dexcom

No in-app purchases

None

Source Performance

No in-app purchases

Questions

Is Stelo by Dexcom free?
Stelo by Dexcom is free to download, with no in-app purchases.
Is Source Performance free?
Source Performance is free to download, with no in-app purchases.
Which has better reviews, Stelo by Dexcom or Source Performance?
Source Performance is rated higher. Stelo by Dexcom averages 2.5 out of 5 from 567 ratings, while Source Performance averages 5.0 from 9 ratings.
Do Stelo by Dexcom or Source Performance have ads?
Neither Stelo by Dexcom nor Source Performance shows ads.
Which is updated more often, Stelo by Dexcom or Source Performance?
Stelo by Dexcom ships an update every 6 weeks, and Source Performance every 2 months. Most recently, Stelo by Dexcom was updated on October 5, 2026 and Source Performance on September 18, 2026.

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