# Dexcom Clarity vs BolusCalc

The clearest difference is rating: Dexcom Clarity at 4.6 against BolusCalc's 3.8. Dexcom Clarity also leads on ratings volume (13K vs 23) and chart position (#193 vs unranked). BolusCalc's advantage is update cadence (every 2 days vs every 3 months) and iOS requirement (15.1 vs 17.6). On price, review sentiment, 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.

Dexcom Clarity holds the better App Store score, 4.6 against 3.8. That said, the two scores are not equally well evidenced: Dexcom Clarity has 13K ratings behind it against 23, so its average is the more settled of the two. Written reviews point the same way: 46% of Dexcom Clarity's written reviews are positive against 42% of BolusCalc's.

Dexcom Clarity ships an update every 3 months, BolusCalc every 2 days. The most recent releases landed on September 27, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | Dexcom Clarity | BolusCalc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (13K ratings)](https://appshunter.io/ios/app/dexcom-clarity/id1019225730/reviews)** | [3.8 (23 ratings)](https://appshunter.io/ios/app/boluscalc/id1521364754/reviews) |
| Number of ratings | **13K** | 23 |
| Positive reviews | **45.9% of reviews** | 42.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 days** |
| Monetization | Free | Free |
| Best chart rank | **#193** | — |
| Size | 36 MB | 65 MB |
| Requires iOS | 17.6 | **15.1** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Dexcom](https://appshunter.io/developer/457035738) | [BC Children's Hospital](https://appshunter.io/developer/1521364756) |

## What reviewers say

### Dexcom Clarity

[App page](https://appshunter.io/ios/app/dexcom-clarity/id1019225730)

**Currently charting:** #193 Top Free · Medical (US App Store)

This app provides diabetes management insights for continuous glucose monitoring (CGM) users. It helps identify glucose patterns and trends over time, aiding in better diabetes control and potentially increasing time in target glucose ranges. Users can track key metrics, share data with healthcare providers, and set personalized goals.

**Highlights:** Glucose pattern and trend analysis, Time in range tracking, Data sharing with healthcare professionals, Setting Time in Range goals, Report viewing, saving, printing, and emailing, Notifications and email alerts

**In-app purchases:** none

**What reviewers like**

- 🚀 Provides great insight
- 📊 Helpful reports and data
- 💯 Life-changing device
- 🔍 Detailed glucose tracking
- 🤝 Integrates with healthcare providers

**What reviewers complain about**

- 🐛 Connectivity issues
- 🔒 Login problems
- 📉 Unreliable sensor readings
- 🚫 Doesn't work internationally
- 📱 Poor iPad support

**Reported bugs**

- Reports not updating
- Clarity app crashing
- Sensor calibration issues
- Data not syncing between apps

**Requested features**

- Ability to add personal notes
- Customizable report formatting
- More detailed data export options
- Ability to adjust graph scales
- Display daily high/low/average glucose


### BolusCalc

[App page](https://appshunter.io/ios/app/boluscalc/id1521364754)

This app assists with calculating insulin doses for individuals managing diabetes. It offers features for simple bolus calculations, insulin sliding scales, and adjustments based on continuous glucose monitoring data. Supports both Canadian and U.S. blood glucose units.

**Highlights:** Simple insulin bolus calculation, Insulin sliding scale generation, Correction for CGMS arrows, Supports MDI users, Canadian and U.S. units

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Dexcom Clarity free?

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

### Is BolusCalc free?

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

### Which has better reviews, Dexcom Clarity or BolusCalc?

Dexcom Clarity is rated higher. Dexcom Clarity averages 4.6 out of 5 from 13K ratings, while BolusCalc averages 3.8 from 23 ratings.

### Do Dexcom Clarity or BolusCalc have ads?

Neither Dexcom Clarity nor BolusCalc shows ads.

### Which is updated more often, Dexcom Clarity or BolusCalc?

Dexcom Clarity ships an update every 3 months, and BolusCalc every 2 days. Most recently, Dexcom Clarity was updated on September 27, 2026 and BolusCalc on September 13, 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.*