# SkyFocus vs Stamp

The clearest difference is in-app purchases: Stamp at none against SkyFocus's 3. Stamp also leads on update cadence (every 3 weeks vs every 8 months) and iOS requirement (15.1 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. SkyFocus sells 3 in-app purchases, starting at $4.99 per 7 days. Stamp asks for nothing beyond the download.

SkyFocus ships an update every 8 months, Stamp every 3 weeks. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | SkyFocus | Stamp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/stamp-calendar-logger/id6761705643/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 58 MB | 39 MB |
| Requires iOS | 17.0 | **15.1** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Futuron Inc](https://appshunter.io/developer/1875080650) | [Robert Piovesan](https://appshunter.io/developer/1609349291) |

## What reviewers say

### SkyFocus

[App page](https://appshunter.io/ios/app/skyfocus/id6759687695)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SkyFocus Premium Weekly | $4.99 | per 7 days |
| SkyFocus Yearly | $29.99 | per year |
| SkyFocus Premium Lifetime | $59.99 | one-time |


### Stamp

[App page](https://appshunter.io/ios/app/stamp-calendar-logger/id6761705643)

This app automatically logs your non-meeting activities, like reading or exercise, as calendar events. It offers a one-tap timer for manual logging and integrates with Strava and Whoop for seamless workout and sleep tracking. Your calendar will finally reflect your entire day.

**Highlights:** One-tap start/stop timer, Strava integration for workouts, Whoop integration for sleep and recovery, Syncs with Apple, Google, and Outlook Calendar, Customizable activities with names and colors, Live Activity on Lock Screen and Dynamic Island

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SkyFocus free?

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

### Is Stamp free?

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

### Do SkyFocus or Stamp have ads?

Neither SkyFocus nor Stamp shows ads.

### Which is updated more often, SkyFocus or Stamp?

SkyFocus ships an update every 8 months, and Stamp every 3 weeks. Most recently, SkyFocus was updated on October 31, 2026 and Stamp on November 5, 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.*