# KnitCalc vs SlowKnit

The clearest difference is update cadence: SlowKnit at every 3 days against KnitCalc's every 8 days. KnitCalc's advantage is iOS requirement (15.1 vs 17.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. KnitCalc sells 2 in-app purchases, starting at $0.99 per month and SlowKnit sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

KnitCalc ships an update every 8 days, SlowKnit every 3 days. The most recent releases landed on September 21, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | KnitCalc | SlowKnit |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 8 days | **Every 3 days** |
| Size | 47 MB | 22 MB |
| Requires iOS | **15.1** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [SmartCode AS](https://appshunter.io/developer/6777349503) | [瑶 惠](https://appshunter.io/developer/6786498518) |

## What reviewers say

### KnitCalc

[App page](https://appshunter.io/ios/app/knitcalc/id6781950627)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| KnitCalc Monthly | $0.99 | per month |
| KnitCalc Yearly | $7.99 | per year |


### SlowKnit

[App page](https://appshunter.io/ios/app/slowknit-pattern-tracker/id6786511830)

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SlowKnit Pro Monthly | $0.99 | per month |
| SlowKnit Pro Yearly | $12.99 | per year |
| SlowKnit Pro Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is KnitCalc free?

KnitCalc is free to download, with in-app purchases available.

### Is SlowKnit free?

SlowKnit is free to download, with in-app purchases available.

### Do KnitCalc or SlowKnit have ads?

Neither KnitCalc nor SlowKnit shows ads.

### Which is updated more often, KnitCalc or SlowKnit?

KnitCalc ships an update every 8 days, and SlowKnit every 3 days. Most recently, KnitCalc was updated on September 21, 2026 and SlowKnit on September 17, 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.*