Crabwise vs CallerIndex

Crabwise is an offline E6B flight computer built for student and private pilots: the six calculations you learn on paper, with type large enough to read at a glance. WIND & GROUND SPEED Solve the wind triangle both directions: find your heading and ground speed, or work backward from heading, track, and ground speed to find the wind. PRESSURE & DENSITY ALTITUDE See the classroom rule of thumb and the exact ICAO Doc 7488 answer side by side, so you know how much margin you actually have. TRUE AIRSPEED & MACH The quick 2%-per-1000-ft approximation and the exact compressible calculation, together. FUEL / TIME / DISTANCE Solve for any one of the three from the other two. CROSSWIND Headwind and crosswind components for any runway and wind. CONVERSIONS Seven unit families: distance, speed, altitude, temperature, pressure, weight, volume. CRABWISE PRO, ONE-TIME PURCHASE ($9.99) - Aircraft profiles: save cruise speed, fuel burn, usable fuel, empty weight and arm, and limits for every aircraft you fly. - Leg planner: chain legs from true course to compass heading, with running totals for time and fuel. - Weight & balance: plot your loading against your aircraft's envelope, checked live as you type. - History & export: save any result and export it as text or CSV. Free forever: all six calculators, every unit, every language, extra-large type. No ads, ever. No trial timer, no subscription. For training and planning cross-checks. Always verify against your aircraft flight manual and official sources. Not for primary navigation. No account. No ads. No tracking. Works offline. Available in English, Spanish, and Polish.

CallerIndex organizes the space between the Phone app and your system contacts. Record who called and why, choose whether to mark or block a number, and keep temporary or emerging contacts in CallerIndex without cluttering your iPhone address book. Key features • Open the system reporting sheet from Phone Recents and mark a number quickly. • Record caller types such as Public Services, Friends & Family, Sales Calls, and Unwanted Disturbance, with a specific context. • Publish labels and blocking choices you confirmed to the iOS Call Identification extension. • Keep multiple numbers, organizations, roles, relationship context, and expiry dates in CallerIndex Contacts. • Extract contact details from pasted text, photos, or screenshots, then review every field before saving. • During temporary enhanced protection, review on-device number coverage and receive guidance for iPhone Ask Reason or Silence settings and reminders to restore them; use Widgets for quick access. • Find public-service numbers, organize complaint records, and browse marks by date. • Export an on-device copy of your data. Free features Number marking, personal labels, explicit blocking, on-device CallerIndex Contacts, Widgets, on-device statistics, and data export are free, with no product limit on marks or contacts. Cloud Sync Membership Members can automatically sync number marks and CallerIndex Contacts across their own devices and recover the latest successfully synced data after replacing or losing a device. Sync requires an active subscription and network connection. Web management is still in development and is not part of the currently delivered service. System boundaries CallerIndex cannot read your complete system call history and does not replace iOS call settings. Reporting, caller identification, blocking, and unknown-caller handling are performed by iOS and require the related extensions to be enabled in Settings. The Phone app may show a new label only after it is reopened. CallerIndex does not promise to identify or block every unwanted call. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/