Comparison

SkyFocus vs Stamp

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SkyFocus

Features
Read full description

Turn every focus session into a flight. SkyFocus is the focus timer that makes deep work feel like an adventure. Pick your aircraft, choose a real route, and take off. Your plane flies across a live satellite map while you stay focused. When your timer ends, you land. FOCUS FLIGHTS THAT FIT YOUR DAY Choose a 25, 50, or 90 minute session, and your plane completes the route right as your timer ends. Want the full experience? Switch on Fly Real Time for the true flight duration. FEATURES - 5 aircraft from Cessna to Concorde - Hundreds of real airports worldwide - Live satellite map tracking - Ambient sounds: cabin, rain, ocean, lo-fi and more - Window and seatback views - A boarding pass you can share - Focus streaks, flight history, and weekly stats HOW IT WORKS 1. Pick an aircraft and destination 2. Choose your focus length 3. Get your boarding pass 4. Your plane flies while you work 5. Land when your session ends SKYFOCUS PREMIUM Start with a 3-day free trial of the yearly plan, or choose weekly or lifetime access. Premium unlocks every aircraft, map style, sound, and view, plus unlimited flights. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your App Store account settings. Whether you're studying, coding, writing, or working, SkyFocus turns distraction-free time into miles flown. Stay focused. Fly further. Terms of Use: https://skyfocus-site.vercel.app/terms Privacy Policy: https://skyfocus-site.vercel.app/privacy

About

Stamp

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
Read full description

Stamp - Calendar Logger Your calendar shows every meeting. But where did the rest of your day go? The hours you spent reading, studying, or at the gym — they just disappear. Stamp logs them as calendar events automatically, so your calendar finally reflects your whole day. STAMP IS NOT A HABIT TRACKER No streaks. No check-ins. No badges. Stamp is a calendar tool — specifically the write layer that calendar apps have always been missing. It does one thing and does it well. HOW IT WORKS Log anything with a one-tap timer. Tap start when you begin, tap stop when you're done — the session appears in your calendar with the exact start and end time. Connect Strava and workouts go straight to your calendar the moment you finish a run or ride, no timer needed. Connect Whoop and your sleep sessions, workouts, and a daily recovery summary with HRV and recovery score appear in your calendar automatically every day. KEY FEATURES One-tap start/stop timer per activity Strava integration — workouts sync to your calendar automatically when you finish Whoop integration — sleep sessions, workout activities and daily recovery summary with HRV and recovery score sync automatically Connects to Apple, Google, and Outlook Calendar Customize activities with names and colors Adjust session times and add a note before saving Live Activity on the Lock Screen and Dynamic Island while a session is running Timer keeps running if you leave the app Session history — last 30 days at a glance, with links back to Strava and Whoop activities Works offline — sessions sync to your calendar when you reconnect

Screenshots

SkyFocus4 screens
Stamp4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard3 real differences · 7 level
SkyFocus versus Stamp: the parameters behind the verdict, then further details
ParameterSkyFocusStamp
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 8 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.015.1 — better
Further details — not scored
Size58 MB39 MB
Age rating4+4+
DeveloperFuturon IncRobert Piovesan

In-app purchases

3 purchases

SkyFocus

Subscriptions2
  • SkyFocus Premium Weekly$4.997 Days
  • SkyFocus Yearly3 Days trial$29.991 Year
One-time1
  • SkyFocus Premium Lifetime$59.99
None

Stamp

No in-app purchases

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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