# Knife Sharpening Log & Timer vs Knife Collection Log

The clearest difference is device support: Knife Collection Log at 3 against Knife Sharpening Log & Timer's 1. On price, ads, in-app purchases and iOS requirement there is nothing between them.

Both are free to download. Knife Sharpening Log & Timer sells 3 in-app purchases, starting at $2.99 per 7 days and Knife Collection Log sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | Knife Sharpening Log & Timer | Knife Collection Log |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | — |
| Size | 4 MB | 53 MB |
| Requires iOS | **17.0** | 18.0 |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Linh Phan Nhat Khanh](https://appshunter.io/developer/1777727575) | [Jawahar Natarajan](https://appshunter.io/developer/6772381065) |

## What reviewers say

### Knife Sharpening Log & Timer

[App page](https://appshunter.io/ios/app/knife-sharpening-log-and-timer/id6771845696)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Grit Progression Planner | $2.99 | per 7 days |
| Bevel Angle Tracker | $14.99 | per year |
| Blade Maintenance Reminders | $29.99 | one-time |


### Knife Collection Log

[App page](https://appshunter.io/ios/app/knife-collection-log-tangmark/id6797412544)

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tangmark Pro: Unlimited Knives | $29.99 | one-time |


## Frequently asked questions

### Is Knife Sharpening Log & Timer free?

Knife Sharpening Log & Timer is free to download, with in-app purchases available.

### Is Knife Collection Log free?

Knife Collection Log is free to download, with in-app purchases available.

### Do Knife Sharpening Log & Timer or Knife Collection Log have ads?

Neither Knife Sharpening Log & Timer nor Knife Collection Log shows ads.

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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.*