# Deep Focus Timer vs MuskDayBox

The clearest difference is in-app purchases: MuskDayBox at none against Deep Focus Timer's 3. MuskDayBox also leads on iOS requirement (15.5 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Deep Focus Timer sells 3 in-app purchases, starting at $9.99 per month. MuskDayBox asks for nothing beyond the download.

Deep Focus Timer ships an update every 5 days, MuskDayBox every 3 days. The most recent releases landed on September 9, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | Deep Focus Timer | MuskDayBox |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 5 days | **Every 3 days** |
| Size | 37 MB | 43 MB |
| Requires iOS | 17.0 | **15.5** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 9+ | 4+ |
| Developer | [Mujaheth Mohammad](https://appshunter.io/developer/1873572607) | [woobyeong jeong](https://appshunter.io/developer/1724585459) |

## What reviewers say

### Deep Focus Timer

[App page](https://appshunter.io/ios/app/deep-focus-timer-calibrate/id6758550591)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calibrate Plus Monthly | $9.99 | per month |
| Calibrate Plus Yearly | $39.99 | per year |
| Lifetime Access | $79.99 | one-time |


### MuskDayBox

[App page](https://appshunter.io/ios/app/muskdaybox/id6789802801)

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

**In-app purchases:** none


## Frequently asked questions

### Is Deep Focus Timer free?

Deep Focus Timer is free to download, with in-app purchases available.

### Is MuskDayBox free?

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

### Do Deep Focus Timer or MuskDayBox have ads?

Neither Deep Focus Timer nor MuskDayBox shows ads.

### Which is updated more often, Deep Focus Timer or MuskDayBox?

Deep Focus Timer ships an update every 5 days, and MuskDayBox every 3 days. Most recently, Deep Focus Timer was updated on September 9, 2026 and MuskDayBox on September 11, 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.*