Flight Computer & Calculator vs Learn SQL

Pilot Toolkit — fast, accurate flight planning on iPhone and iPad Pilot Toolkit brings your core preflight calculations into one clean, lightweight app. Whether you’re prepping a VFR hop or an IFR cross-country, it helps you compute the numbers that matter quickly and clearly. What you can do • Wind Component: headwind and crosswind, with optional gust handling • Density Altitude: from altimeter or pressure altitude and OAT, plus ISA temperature • Cloud Base: LCL estimate from temperature, dewpoint, and station altitude • Speed of Sound and Mach: speed of sound by altitude/ISA; Mach from speed • TAS / IAS: convert between true and indicated airspeed using air density • Time Addition & Subtraction: add or subtract any number of H:M:S rows with live normalization • NavLog (VFR and IFR): spreadsheet-style leg planner with – true course, altitude, IAS/TAS, winds, variation/deviation – wind correction angle; true, magnetic, and compass headings – ground speed, enroute time, fuel flow, fuel used, fuel remaining – mode toggle with “Calculate TAS using IAS” – dynamic legs: add, remove, reorder – totals row: distance, time, fuel used, fuel remaining – export as PDF; import/export as standard text/CSV files Designed for pilots • Instant results as you type • Aviation units by default (kt, NM, ft, GPH) • Print and share: generate a PDF that mirrors the on-screen NavLog layout • Portable plans: save or open plain text/CSV NavLogs for continued planning • Localizable: English included; ready to add more languages Why pilots like it • Everything essential in one place • Clear outputs with sensible rounding and conventions • Flexible enough for quick checks or full leg-by-leg planning Notes Pilot Toolkit is intended for planning and training support. Always cross-check with official sources, your aircraft POH/AFM, and current weather and navigation data. Use sound aeronautical decision making at all times. Plan smarter and turn preflight math into a few quick taps. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

SQL practice and study made fun. Tap tokens to build real queries. Skip the decoys, lock in clause order, and actually remember the syntax. Study with no timer, then race for three stars. Master a lesson and type it from memory. Start free. No account. Works offline. WHAT YOU’LL LEARN 7 tracks, 80+ bite-sized lessons: • SELECT, WHERE, ORDER BY, LIMIT • JOINs, GROUP BY, HAVING, subqueries • INSERT, UPDATE, DELETE • CREATE, ALTER, DROP — tables, keys, and indexes Standard SQL that transfers to MySQL, PostgreSQL, and SQLite. HOW IT WORKS • Study — unlimited lives, no clock • Practice — 45 seconds, 3 lives, chase three stars • Type from memory — write the query yourself • Daily challenge + streaks — five minutes a day WHO IT’S FOR Complete beginners. Students and bootcamps. Analysts and developers who want the syntax back in their fingers before an interview. WHY SQL LAB No textbook wall of text. No monthly subscription. SQL Lab is a query puzzle you can finish on the bus — and it sticks. Free: first 8 SELECT lessons and 3 practice runs a day. Pro: all 7 tracks, unlimited practice, and type-from-memory. One purchase, yours forever. Privacy Policy: https://lukeacoleman.dev/privacy/ Support: https://lukeacoleman.dev/privacy/