# Plumb vs HIIT Note

The clearest difference is update cadence: Plumb at every 10 days against HIIT Note's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Plumb sells 3 in-app purchases, starting at $3.99 per 7 days and HIIT Note sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

Plumb ships an update every 10 days, HIIT Note every 2 months. The most recent releases landed on November 10, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Plumb | HIIT Note |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 10 days** | Every 2 months |
| Size | 7 MB | 6 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [MOHAMMAD ALJARAD](https://appshunter.io/developer/6784008263) | [Hiroki Okazaki](https://appshunter.io/developer/1887790290) |

## What reviewers say

### Plumb

[App page](https://appshunter.io/ios/app/plumb-posture-reminder/id6785198606)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Plumb+ Weekly | $3.99 | per 7 days |
| Plumb+ Annual | $39.99 | per year |
| Plumb+ Lifetime | $49.99 | one-time |


### HIIT Note

[App page](https://appshunter.io/ios/app/hiit-note/id6800796415)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HIIT Note Premium Monthly | $0.99 | per month |
| HIIT Note Premium Yearly | $11.99 | per year |


## Frequently asked questions

### Is Plumb free?

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

### Is HIIT Note free?

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

### Do Plumb or HIIT Note have ads?

Neither Plumb nor HIIT Note shows ads.

### Which is updated more often, Plumb or HIIT Note?

Plumb ships an update every 10 days, and HIIT Note every 2 months. Most recently, Plumb was updated on November 10, 2026 and HIIT Note 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.*