Comparison

Stelo by Dexcom vs MySparkDx

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

MySparkDx

This app transforms at-home wellness test results into clear, personalized insights. It guides you through tests, analyzes readings, and provides a wellness narrative with optional lifestyle context for pattern discovery.

Highlights
  • Guided wellness test procedures
  • Personalized health insights
  • Wellness and stress tracking
  • Metabolic and performance markers
  • Trend charts for wellness shifts
  • Optional health log for context
Features
Read full description

You. Understood. MySparkDX is a warm, modern companion for SparkDX at-home wellness tests. Pair the app with a SparkDX kit and turn a simple test strip or saliva cassette into clear, personalized insights you can actually use. WHAT YOU CAN EXPLORE - Wellness — a 12-marker check-in including hydration, pH, vitamin C, and protein - Stress — follow cortisol patterns from saliva, morning and evening - Metabolic — track ketones, hydration, and everyday metabolism signals - Performance — tune into nitric oxide and recovery markers that support active routines HOW IT WORKS 1. Choose your SparkDX kit and follow the guided steps in the app 2. Snap a photo of your test strip or cassette with your phone camera 3. Get a clean summary of each reading plus a personalized wellness narrative written in plain language 4. Add optional lifestyle context — water, movement, sleep, meals — and watch your patterns unfold over time WHY PEOPLE LOVE IT - Plain-language insights, not clinical talk - Personalized reports that connect the dots between your readings - Trend charts that reveal how your wellness shifts week to week - Optional Health Log for daily lifestyle context - Reorder kits and manage subscriptions right from the app PRIVACY MATTERS Your wellness data belongs to you. SparkDX gives you control over your information and does not sell your personal data. IMPORTANT INFORMATION MySparkDX and SparkDX test products are intended for general wellness and informational purposes only. They are not intended to diagnose, treat, cure, or prevent any disease or medical condition. Results are not a substitute for professional medical advice. Always consult a qualified healthcare provider with questions about your health. MySparkDX is intended for users 18 years or older. An account and a SparkDX test kit are required to use the testing features of the app. Start your wellness check-in today. You. Understood.

Screenshots

Stelo by Dexcom4 screens
MySparkDx4 screens

Verdict

The call

The clearest difference is rating: MySparkDx at 3.0 against Stelo by Dexcom's 2.5. MySparkDx also leads on iOS requirement (15.1 vs 18.6). Stelo by Dexcom's advantage is ratings volume (665 vs 2) and chart position (#119 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

MySparkDx holds the better App Store score, 3.0 against 2.5. That said, the two scores are not equally well evidenced: Stelo by Dexcom has 665 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Stelo by Dexcom ships an update every 5 weeks, MySparkDx monthly. The most recent releases landed on October 22, 2026 and October 21, 2026 respectively.

Scorecard4 real differences · 7 level
Stelo by Dexcom versus MySparkDx: the parameters behind the verdict, then further details
ParameterStelo by DexcomMySparkDx
PriceFreeFree
Rating2.5 (665 ratings)3.0 (2 ratings) — better
Positive reviews18.0% of reviews—
Number of ratings665 — better2
Update frequencyEvery 5 weeksMonthly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
Best chart rank#119 — better—
DevicesiPhone, Apple WatchiPhone, iPad, iPod — better
Requires iOS18.615.1 — better
Further details — not scored
Size311 MB49 MB
Age rating17+17+
DeveloperDexCom, Inc.SPARK DIAGNOSTICS, LLC

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

MySparkDx

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Stelo by Dexcom

No in-app purchases

None

MySparkDx

No in-app purchases

Questions

Is Stelo by Dexcom free?
Stelo by Dexcom is free to download, with no in-app purchases.
Is MySparkDx free?
MySparkDx is free to download, with no in-app purchases.
Which has better reviews, Stelo by Dexcom or MySparkDx?
MySparkDx is rated higher. Stelo by Dexcom averages 2.5 out of 5 from 665 ratings, while MySparkDx averages 3.0 from 2 ratings.
Do Stelo by Dexcom or MySparkDx have ads?
Neither Stelo by Dexcom nor MySparkDx shows ads.
Which is updated more often, Stelo by Dexcom or MySparkDx?
Stelo by Dexcom ships an update every 5 weeks, and MySparkDx monthly. Most recently, Stelo by Dexcom was updated on October 22, 2026 and MySparkDx on October 21, 2026.

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