Pressurisation vs 3
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Pressurisation
Visualize aircraft cabin pressurization with realistic cockpit instruments. Explore different aircraft types and monitor key metrics like cabin altitude and differential pressure. Ideal for aviation enthusiasts and students.
- Cockpit-style instrument displays
- Multiple aircraft type modes
- Cabin altitude monitoring
- Differential pressure display
- Cabin climb rate indicator
- Ground speed display
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Transform Your Flight Experience with Advanced Cabin Monitoring Cabin Pressurisation is your companion for understanding and visualising how aircraft cabins are pressurised at altitude. Whether for training, education, or curiosity, this app brings complex systems to life with authentic cockpit-style instruments and intuitive displays. Cockpit Modes (Tailored to Aircraft Types): Advanced EFIS – State-of-the-art display (max 9.0 ΔP) Turboprop – For smaller turboprop aircraft (max 5.5 ΔP) Corporate Jet 8.6 PSI – Inspired by a renowned business jet (max 8.9 ΔP) Corporate Jet 10 PSI – Modelled after the fastest business jet (max 9.6 ΔP) Airliner Legacy – Classic jet airliner design (max 9.1 ΔP) Airliner EFIS – Modern jetliner interface (max 8.6 ΔP) Key Features: Cabin Altitude Gauge (CABIN ALT) – Displays cabin altitude in thousands of feet. Differential Pressure Gauge (ΔP) – Shows the pressure difference between cabin and outside air. Variometer (CABIN CLIMB) – Tracks the rate of cabin altitude change. Ground Speed Display – Monitors ground speed in knots. Limitations: GPS Dependent – Best performance when your device is near a window. Mach Indicator – Approximate only (based on ground speed and altitude). Important: This app is designed for educational purposes only. It is not a substitute for certified aircraft systems or instruments.
3
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A simple, instant countdown timer that starts the moment you open it. No menus, no setup — just launch the app and the countdown begins right away. FEATURES • Starts automatically on launch Just tap the icon. No settings screen to hunt through. • Adjustable from 1 to 10 minutes Use the − / + buttons to change the duration in 1-minute steps. • Lock Screen & Dynamic Island support Keep an eye on the remaining time right from your Lock Screen or Dynamic Island. • Never miss the finish A notification, sound, and vibration let you know when time's up. • Optional ambient sound Toggle a calming forest ambience on or off whenever you like. • One-tap start from the Home Screen (Quick Actions) Long-press the app icon to instantly start a 1, 3, 5, or 10-minute timer. • Icon reflects your setting The Home Screen icon updates to show the number of minutes you've set. Great for: • Waiting for instant noodles or tea to steep • Workout or swimming intervals • Brushing your teeth or washing your face • A quick break or focus session Works on iPhone and iPad. Contains banner ads.
Screenshots
Verdict
The clearest difference is ads: Pressurisation at none against 3's shown. On price, in-app purchases, device support and iOS requirement 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Pressurisation | 3 |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | — |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 9 MB | 10 MB |
| Age rating | 4+ | 4+ |
| Developer | Riccardo Arrigoni | Legal Prompt Inc. |
In-app purchases
Pressurisation
No in-app purchases
3
No in-app purchases









