# VapeTracker vs KNITCAL

The clearest difference is price: VapeTracker at Free against KNITCAL's $2.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

VapeTracker is free to download; KNITCAL costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

VapeTracker ships an update every 6 weeks, KNITCAL monthly. The most recent releases landed on October 22, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | VapeTracker | KNITCAL |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 weeks | **Monthly** |
| Size | 7 MB | 1 MB |
| Requires iOS | 17.0 | **16.0** |
| Devices | iPhone, Apple Watch | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Nick Sorge](https://appshunter.io/developer/660012485) | [Yunjeong Roh](https://appshunter.io/developer/1694138283) |

## What reviewers say

### VapeTracker

[App page](https://appshunter.io/ios/app/vapetracker/id1669955107)

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

**In-app purchases:** none


### KNITCAL

[App page](https://appshunter.io/ios/app/knitcalgauge-calculator/id6738332828)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is VapeTracker free?

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

### Is KNITCAL free?

KNITCAL costs $2.99, with no in-app purchases.

### Do VapeTracker or KNITCAL have ads?

Neither VapeTracker nor KNITCAL shows ads.

### Which is updated more often, VapeTracker or KNITCAL?

VapeTracker ships an update every 6 weeks, and KNITCAL monthly. Most recently, VapeTracker was updated on October 22, 2026 and KNITCAL on October 30, 2026.

---

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