# Calibrate vs Deep Focus Timer

The clearest difference is update cadence: Deep Focus Timer at every 5 days against Calibrate's fortnightly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Calibrate sells 1 one-off in-app purchase and Deep Focus Timer sells 3 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Calibrate ships an update fortnightly, Deep Focus Timer every 5 days. The most recent releases landed on September 10, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Calibrate | Deep Focus Timer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Fortnightly | **Every 5 days** |
| Size | 4 MB | 37 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 9+ |
| Developer | [Warren Peters](https://appshunter.io/developer/1591974619) | [Mujaheth Mohammad](https://appshunter.io/developer/1873572607) |

## What reviewers say

### Calibrate

[App page](https://appshunter.io/ios/app/calibrate-time-block-planner/id6758213974)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calibrate Pro — Lifetime | $9.99 | one-time |


### 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 |


## Frequently asked questions

### Is Calibrate free?

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

### Is Deep Focus Timer free?

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

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

Neither Calibrate nor Deep Focus Timer shows ads.

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

Calibrate ships an update fortnightly, and Deep Focus Timer every 5 days. Most recently, Calibrate was updated on September 10, 2026 and Deep Focus Timer on September 9, 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.*