# Glucose | Blood Sugar Tracker vs PROSleep Study

The clearest difference is in-app purchases: PROSleep Study at none against Glucose | Blood Sugar Tracker's 11. PROSleep Study also leads on iOS requirement (13.0 vs 16.0). Glucose | Blood Sugar Tracker's advantage is update cadence (every 2 weeks vs every 2 months) and chart position (#21 vs unranked). On price, ads and device support there is nothing between them.

Both are free to download. Glucose | Blood Sugar Tracker sells 9 in-app purchases, starting at $7.99 per month. PROSleep Study asks for nothing beyond the download.

Glucose | Blood Sugar Tracker ships an update every 2 weeks, PROSleep Study every 2 months. The most recent releases landed on October 23, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Glucose | Blood Sugar Tracker | PROSleep Study |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (29K ratings)](https://appshunter.io/ios/app/glucose-blood-sugar-tracker/id1135157609/reviews)** | — |
| Number of ratings | **29K** | — |
| Positive reviews | 27.6% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Best chart rank | **#21** | — |
| Size | 91 MB | 72 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [App Sub 1 LLC](https://appshunter.io/developer/1667982354) | [Hilary Lorna Mckinnon](https://appshunter.io/developer/1192892537) |

## What reviewers say

### Glucose | Blood Sugar Tracker

[App page](https://appshunter.io/ios/app/glucose-blood-sugar-tracker/id1135157609)

**Currently charting:** #21 Top Grossing · Medical (US App Store)

This app helps users track blood sugar, weight, blood pressure, and medications to manage diabetes. It offers features like data logging, trend identification, customizable reminders, and report generation for healthcare professionals. An estimated A1C calculator is also included.

**Highlights:** Log blood sugar and other health data, Identify trends with graphs, Schedule blood sugar check reminders, Email reports to physicians, A1C estimation calculator, Track medications and carbs

**Features:** Apple Watch app, iMessage stickers, Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Glucose+ | $7.99 | per month |
| Glucose+ | $8.99 | per month |
| Glucose+ | $9.99 | per month |
| Glucose+ | $29.99 | per year |
| Glucose+ | $39.99 | per year |
| Glucose+ | $39.99 | per year |
| Glucose+ | $39.99 | per year |
| Glucose+ | $49.99 | per year |
| Premium Subscription | $89.99 | per year |

**What reviewers like**

- 👍 Easy to use
- 🚀 Simple and straightforward
- 💡 Estimated A1C feature
- 👍 Graphs and data visualization

**What reviewers complain about**

- 🔒 Subscription model to access full features
- 🐛 Recent update removed decimal point for glucose entries
- 🔒 Locked features behind paywall
- 🔒 Sudden changes to free version

**Reported bugs**

- Apple Watch app not functioning
- Sync issues with HealthKit causing duplicate entries

**Requested features**

- Ability to set custom glucose range
- Medication tracking
- Improved Apple Watch integration
- Ability to contact developers


### PROSleep Study

[App page](https://appshunter.io/ios/app/prosleep-study/id6448584791)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Glucose | Blood Sugar Tracker free?

Glucose | Blood Sugar Tracker is free to download, with in-app purchases available.

### Is PROSleep Study free?

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

### Do Glucose | Blood Sugar Tracker or PROSleep Study have ads?

Neither Glucose | Blood Sugar Tracker nor PROSleep Study shows ads.

### Which is updated more often, Glucose | Blood Sugar Tracker or PROSleep Study?

Glucose | Blood Sugar Tracker ships an update every 2 weeks, and PROSleep Study every 2 months. Most recently, Glucose | Blood Sugar Tracker was updated on October 23, 2026 and PROSleep Study on October 15, 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.*