Comparison

Pressurisation vs HitDex

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

Head to head
About

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.

Highlights
  • Cockpit-style instrument displays
  • Multiple aircraft type modes
  • Cabin altitude monitoring
  • Differential pressure display
  • Cabin climb rate indicator
  • Ground speed display
Read full description

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.

About

HitDex

Features
Read full description

HitDex is a collector's app, built by a collector, to keep track of what you own, what you're missing and what it's worth. The whole catalogue ships inside the app: 174 sets and 20,479 cards, with name, collector number, rarity, artist and type. It draws instantly and works in airplane mode. You only need a connection to download card art and to refresh prices. WHAT IT DOES • Your collection. Add cards from any set, with how many copies you own and in which language. Inside a set you can show only what you own or only what you're missing, and sort by number, price or rarity. • Camera scanner. Point at the card: HitDex reads the collector number, identifies the card and adds it with a coin sound. A reading only counts once it repeats across several frames, and when a number matches more than one card it asks instead of guessing. • Prices in euros. The catalogue price is the Cardmarket trend, served by TCGdex, with each card's real finish variants (normal, reverse, holo, cosmos, gold…). It is cached for 24 hours: a reference price, not a live quote. When there is no public price the app says so instead of showing €0.00, and on Japanese, Korean and Chinese editions you can type your own. • Portfolio. Total value, a card-by-card breakdown and value over 7D, 1M, 6M and 1Y. The history is real: it is built from the day you install the app, never backfilled with invented data. • AI Grading. Photograph a card and the on-device engine measures centering, corners, edges and surface with Apple's Vision framework, returning subgrades and an estimated score on the 10-point scale. It is an indicative pre-grade to help you decide whether a card is worth sending off: it is not an official grade and does not replace any grading company. For a qualitative second opinion you can add your own Anthropic API key; with no key, everything stays on the device. • SimRip. A pack-opening simulator with the odds on screen before every pack, calibrated against the measurements published by the TCGplayer Authentication Center for the eras that have them (and labelled as an approximation where they don't). No money, no wagering, no prizes: the cards it pulls are not added to your collection and are worth nothing. It exists to show you up close how unlikely a hit is. • Graded cards. Reference prices raw and graded (PSA 10, 9, 8) with the multiplier, with nothing to configure. They come from closed eBay sales, in US dollars and labelled as such: the app does not convert currencies. • Offline. From a set's menu you can download all of its art. It tells you how much space it will take before it starts and, when it finishes, whether everything was saved, only part of it, or nothing. • Search by name, artist or collector number across the sets you have already opened. WHAT IT DOESN'T DO No accounts, no ads, no analytics, no tracking and no in-app purchases. Your collection and your grading reports stay on your iPhone. Interface in Spanish, English, French, German, Italian and Portuguese. Card and set names come from the catalogue in English. WHERE THE DATA COMES FROM Sets and cards come from the public pokemontcg.io and TCGdex APIs. Catalogue prices are the Cardmarket trend served by TCGdex, in euros, cached for 24 hours. Graded card prices come from closed eBay sales, in US dollars, served by HitDex's own service, which the app only ever sends a card identifier to. Grading photos are analysed on the device and only leave it if you configure your own Anthropic API key. NOTICE HitDex is an independent app for collectors. It is not affiliated with, sponsored by or endorsed by Nintendo, Creatures Inc., GAME FREAK inc., The Pokémon Company International or their affiliates, nor by Cardmarket, TCGplayer, PriceCharting or PSA. Card, set and character names are trademarks of their respective owners. Images and prices are shown for informational purposes only.

Screenshots

Pressurisation4 screens
HitDex4 screens

Verdict

The call

The clearest difference is update cadence: HitDex at every 2 weeks against Pressurisation's every 2 months. Pressurisation's advantage is iOS requirement (17.0 vs 26.0). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Pressurisation ships an update every 2 months, HitDex every 2 weeks. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.

Scorecard2 real differences · 7 level
Pressurisation versus HitDex: the parameters behind the verdict, then further details
ParameterPressurisationHitDex
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 2 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad — betteriPhone
Requires iOS17.0 — better26.0
Further details — not scored
Size9 MB4 MB
Age rating4+4+
DeveloperRiccardo ArrigoniROBERTO ALVAREZ FERRERA

In-app purchases

None

Pressurisation

No in-app purchases

None

HitDex

No in-app purchases

Questions

Is Pressurisation free?
Pressurisation is free to download, with no in-app purchases.
Is HitDex free?
HitDex is free to download, with no in-app purchases.
Do Pressurisation or HitDex have ads?
Neither Pressurisation nor HitDex shows ads.
Which is updated more often, Pressurisation or HitDex?
Pressurisation ships an update every 2 months, and HitDex every 2 weeks. Most recently, Pressurisation was updated on November 6, 2026 and HitDex on November 2, 2026.

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