# Zukka vs NightKnight Glucose Tracker

The clearest difference is update cadence: NightKnight Glucose Tracker at every 5 days against Zukka's every 3 weeks. On price, ads, in-app purchases and device support there is nothing between them.

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

Zukka ships an update every 3 weeks, NightKnight Glucose Tracker every 5 days. The most recent releases landed on November 4, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | Zukka | NightKnight Glucose Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (65 ratings)](https://appshunter.io/ios/app/zukka/id6743448282/reviews)** | — |
| Number of ratings | **65** | — |
| Positive reviews | 74.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Free | — |
| Size | 119 MB | 4 MB |
| Requires iOS | **16.2** | 17.0 |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, Apple Watch |
| Age rating | 4+ | 4+ |
| Developer | [Ihor Zhvanko](https://appshunter.io/developer/1802934002) | [FERGUS COONEY](https://appshunter.io/developer/6775220541) |

## What reviewers say

### Zukka

[App page](https://appshunter.io/ios/app/zukka/id6743448282)

This app displays real-time blood glucose data from continuous glucose monitoring (CGM) systems. It tracks glucose, insulin, and activity, offering widgets and Apple Health integration. It connects via Bluetooth to devices like Dexcom and FreeStyle Libre.

**Highlights:** Real-time glucose tracking, Insulin tracking, Activity and exercise logging, Widgets and watch app support, Apple Health integration, Bluetooth CGM connectivity

**Features:** Apple Watch app

**In-app purchases:** none


### NightKnight Glucose Tracker

[App page](https://appshunter.io/ios/app/nightknight-glucose-tracker/id6784815820)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Zukka free?

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

### Is NightKnight Glucose Tracker free?

NightKnight Glucose Tracker is free to download, with no in-app purchases.

### Do Zukka or NightKnight Glucose Tracker have ads?

Neither Zukka nor NightKnight Glucose Tracker shows ads.

### Which is updated more often, Zukka or NightKnight Glucose Tracker?

Zukka ships an update every 3 weeks, and NightKnight Glucose Tracker every 5 days. Most recently, Zukka was updated on November 4, 2026 and NightKnight Glucose Tracker on October 28, 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.*