# Stelo by Dexcom vs MySparkDx

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 (#118 vs unranked). On price, update cadence, ads and in-app purchases there is nothing between them.

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

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.

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.

## The numbers

| Metric | Stelo by Dexcom | MySparkDx |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.5 (665 ratings)](https://appshunter.io/ios/app/stelo-by-dexcom/id6475610406/reviews) | **[3.0 (2 ratings)](https://appshunter.io/ios/app/mysparkdx/id6761769927/reviews)** |
| Number of ratings | **665** | 2 |
| Positive reviews | 18.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Monthly** |
| Monetization | Free | Free |
| Best chart rank | **#118** | — |
| Size | 311 MB | 49 MB |
| Requires iOS | 18.6 | **15.1** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [DexCom, Inc.](https://appshunter.io/developer/457035738) | [SPARK DIAGNOSTICS, LLC](https://appshunter.io/developer/1197766868) |

## What reviewers say

### Stelo by Dexcom

[App page](https://appshunter.io/ios/app/stelo-by-dexcom/id6475610406)

**Currently charting:** #118 Top Free · Health & Fitness (US App Store)

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:** Apple Watch app

**In-app purchases:** none

**What reviewers like**

- 🚀 Easy sensor setup
- 👍 Intuitive app interface
- 🔍 Helpful for understanding glucose trends
- 💡 Integrates with Apple Health

**What reviewers complain about**

- 🐛 Sensor accuracy issues
- 🔍 Limited data history and analysis
- 🤖 Lack of human customer support
- 🔍 Inability to calibrate sensor
- 🔍 Inconsistent Apple Watch integration

**Reported bugs**

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

**Requested features**

- 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

[App page](https://appshunter.io/ios/app/mysparkdx/id6761769927)

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:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*