# Dexcom G6 Simulator vs Tandem t

Dexcom G6 Simulator and Tandem t both sit at 3.2 stars, but that hides the real split: 37% of Tandem t's written reviews are positive against 5% of Dexcom G6 Simulator's. Tandem t also leads on ratings volume (2.2K vs 71) and update cadence (every 2 months vs every 7 months). Dexcom G6 Simulator's advantage is iOS requirement (9.0 vs 18.0). On price, rating, 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.

On the App Store both sit at effectively the same score — 3.2 for Dexcom G6 Simulator against 3.1 for Tandem t. That said, the two scores are not equally well evidenced: Tandem t has 2.2K ratings behind it against 71, so its average is the more settled of the two. Written reviews are what separate them: 5% of Dexcom G6 Simulator's written reviews are positive against 37% of Tandem t's.

Dexcom G6 Simulator ships an update every 7 months, Tandem t every 2 months. Both last shipped on October 29, 2026.

## The numbers

| Metric | Dexcom G6 Simulator | Tandem t |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.2 (71 ratings)](https://appshunter.io/ios/app/dexcom-g6-simulator/id1352389740/reviews)** | [3.1 (2.2K ratings)](https://appshunter.io/ios/app/tandem-tslim-mobile-app/id1455916023/reviews) |
| Number of ratings | 71 | **2.2K** |
| Positive reviews | 5.3% of reviews | **36.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 41 MB | 157 MB |
| Requires iOS | **9.0** | 18.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [DexCom, Inc.](https://appshunter.io/developer/457035738) | [Tandem Diabetes Care, Inc.](https://appshunter.io/developer/955568376) |

## What reviewers say

### Dexcom G6 Simulator

[App page](https://appshunter.io/ios/app/dexcom-g6-simulator/id1352389740)

This app simulates the features and scenarios of a continuous glucose monitoring system. It showcases sample data, trend displays, and setup options without using live patient information.

**Highlights:** CGM scenario samples, Trend displays, Setup feature examples, Simulation only, No live data

**In-app purchases:** none


### Tandem t

[App page](https://appshunter.io/ios/app/tandem-tslim-mobile-app/id1455916023)

This app acts as a smartphone companion for a specific insulin pump, allowing users to deliver insulin doses and view pump data remotely. It provides discreet access to essential information and notifications, enhancing convenience for pump users.

**Highlights:** Deliver bolus from smartphone, Discreet secondary pump display, View pump data and notifications, Wirelessly upload therapy data, Smartphone language support

**In-app purchases:** none

**What reviewers like**

- 🚀 Convenient mobile bolus
- 📊 Helpful data visualization
- 🤳 Discreet pump management
- 🔋 Reasonable battery impact
- 🎉 Game-changing technology

**What reviewers complain about**

- 🔌 Frequent connection issues
- 🕰️ Annoying time mismatch alerts
- 🔒 Limited pump control
- 🔍 Missing key features (extended bolus, alarms)
- 🐛 Buggy and unstable at times

**Reported bugs**

- App crashes on launch
- Pump battery draining rapidly
- Glucose data not syncing properly
- Repeated connection losses

**Requested features**

- Add extended bolus capability
- Allow clearing of pump alarms from app
- Integrate with Apple Health/Watch
- Expand data history and customization
- Improve app stability and reliability


## Frequently asked questions

### Is Dexcom G6 Simulator free?

Dexcom G6 Simulator is free to download, with no in-app purchases.

### Is Tandem t free?

Tandem t is free to download, with no in-app purchases.

### Which has better reviews, Dexcom G6 Simulator or Tandem t?

Dexcom G6 Simulator is rated higher. Dexcom G6 Simulator averages 3.2 out of 5 from 71 ratings, while Tandem t averages 3.1 from 2.2K ratings.

### Do Dexcom G6 Simulator or Tandem t have ads?

Neither Dexcom G6 Simulator nor Tandem t shows ads.

### Which is updated more often, Dexcom G6 Simulator or Tandem t?

Dexcom G6 Simulator ships an update every 7 months, and Tandem t every 2 months. Most recently, Dexcom G6 Simulator was updated on October 29, 2026 and Tandem t on October 29, 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.*