# Caliburr vs Grind Convert

The clearest difference is device support: Caliburr at 3 against Grind Convert's 1. Caliburr also leads on iOS requirement (15.1 vs 26.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Caliburr sells 2 in-app purchases, starting at $1.99 per month and Grind Convert sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Caliburr ships an update fortnightly, Grind Convert every 3 weeks. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Caliburr | Grind Convert |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 3 weeks |
| Size | 49 MB | 10 MB |
| Requires iOS | **15.1** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Vellapps LLC](https://appshunter.io/developer/1365654150) | [金苹 卢](https://appshunter.io/developer/1885537846) |

## What reviewers say

### Caliburr

[App page](https://appshunter.io/ios/app/caliburr/id6761644774)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Caliburr Backer - Monthly | $1.99 | per month |
| Caliburr Backer - Annual | $14.99 | per year |


### Grind Convert

[App page](https://appshunter.io/ios/app/grind-convert-coffee-dial/id6795716110)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Lifetime | $6.99 | one-time |


## Frequently asked questions

### Is Caliburr free?

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

### Is Grind Convert free?

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

### Do Caliburr or Grind Convert have ads?

Neither Caliburr nor Grind Convert shows ads.

### Which is updated more often, Caliburr or Grind Convert?

Caliburr ships an update fortnightly, and Grind Convert every 3 weeks. Most recently, Caliburr was updated on October 25, 2026 and Grind Convert on October 31, 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.*