Comparison

E6B Pilot Flight Computer vs Site Calc Pro

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

Head to head
About

E6B Pilot Flight Computer

Features
Read full description

Catch a bad crosswind or leg-time assumption before engine start. E6B Pilot Flight Computer helps student pilots, CFIs, and other manual-planning pilots turn runway wind checks, wind previews, and nav-log cards into a faster preflight and teaching workflow without opening a full EFB. Use the free core to: - check runway crosswind plus headwind or tailwind components from manual wind and runway inputs - check density altitude from pressure altitude and outside air temperature before opening aircraft performance tables - preview wind correction angle, heading, and groundspeed from true course, true airspeed, wind-from direction, and wind speed - keep the workflow fully offline with no account, ads, or live EFB scope Unlock Nav-Log Cards to: - turn a wind leg into a full nav-log card with heading, groundspeed, leg time, and fuel required before reserves - save, pin, and reload local training or preflight cards on iPhone or iPad - share a plain-language training summary for debrief, lesson handoff, or planning notes - unlock the full student-pilot and CFI drill-card library for repeat runway, wind, and leg-time practice Why pilots keep it: - catch a runway-component or leg-time mistake before engine start - practice manual E6B thinking without rebuilding the same math in notes, spreadsheets, or browser calculators - hand off a clean training or debrief card instead of rewriting numbers - stay focused on one review-safe manual planning job instead of a broad aviation suite Important: Results are planning and training references only. Always verify runway choice, performance, fuel reserves, and operational decisions with your POH or AFM, current conditions, and pilot judgment. This app is not FAA-approved avionics and does not provide navigation, live weather, charts, flight-plan filing, or aircraft integration.

About

Site Calc Pro

Features
Read full description

Site Calc Pro is a practical construction calculator built for fast jobsite math, material estimates, layout work, and project-based calculation history. It is not just a calculator that gives you the last answer. Site Calc Pro keeps an editable tape of your work, organized by project, so you can check previous calculations, reuse entries, duplicate results, copy your tape, and come back to the numbers later. Built for real construction workflow Site Calc Pro is designed for the repeated calculations builders, contractors, carpenters, and estimators do every day. Work in familiar units, move quickly between feet-inch fractions and metric, solve practical layout and estimating problems, and keep an editable record of your calculations by project. One paid app purchase. No subscription. CALC + TAPE WORKFLOW Site Calc Pro is built around two main sections: Calc Fast construction calculator input for dimensions, units, layouts, materials, roofing, stairs, shapes, costs, wastage, and conversions. Tape A project-based tape where your calculations can be reviewed, edited, duplicated, saved, copied, and organized instead of being lost after the next calculation. CONSTRUCTION CALCULATOR FEATURES • Feet-inch-fraction math • Metric entry and conversions • Decimal, fraction, square, cubic, weight, area, and volume calculations • Length, width, and height stored dimensions • Area, volume, perimeter, wall area, room area, and square-up workflows • Cost, percent, wastage, board feet, and material estimating tools • Weight/volume and density calculations • Memory, save, autosave, and project-based tape history ROOFING, RAFTERS AND FRAMING • Pitch, rise, run, and diagonal calculations • Angle, grade, ratio, plumb, and level outputs • Common rafter calculations • Hip/valley and jack rafter calculations • Irregular pitch and irregular jack rafter workflows • Roof area and roof covering estimates • Rake wall and arched wall calculations • On-center spacing support for layout work STAIRS, SHAPES AND LAYOUT • Stair layout calculations • Risers, treads, stringers, total rise, and run workflows • Circle and arc calculations • Polygon calculations • Column and cone area/volume calculations • Crown / compound miter calculations • Degree and DMS conversion support MATERIALS AND ESTIMATES Site Calc Pro includes practical estimating tools for common construction materials and quantities, including: • Drywall • Tile • Paint • Brick and block • Flooring • Fence panels • Posts • Studs • Roofing coverage • Concrete, gravel, and material weight estimates • User-set coverage, spacing, and density values where applicable BUILT-IN HELP Many buttons include long-press help with examples, key sequences, notes, and output explanations. Advanced functions are explained inside the app, so you can learn the workflow without leaving the calculator. WHY USE SITE CALC PRO? Construction math is often not difficult because you do not know the formula. It is difficult because you are busy, interrupted, switching units, checking estimates, repeating similar calculations, and trying not to lose track of the numbers. Site Calc Pro is built to make that work faster and clearer. Calculate in feet-inch fractions or metric. Solve practical construction layouts and estimates. Save the working, not just the result. From the developer of Construction Calc Pro, Site Calc Pro is a serious paid utility for builders, carpenters, contractors, estimators, tradespeople, and anyone who needs dependable construction calculations on their phone.

Screenshots

E6B Pilot Flight Computer3 screens
Site Calc Pro4 screens

Verdict

The call

The clearest difference is in-app purchases: Site Calc Pro at none against E6B Pilot Flight Computer's 1. Site Calc Pro also leads on update cadence (daily vs every 9 days) and iOS requirement (15.6 vs 17.0). On price, ads and device support there is nothing between them.

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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. E6B Pilot Flight Computer sells 1 one-off in-app purchase. Site Calc Pro asks for nothing beyond the download.

UpkeepUpdate frequency

E6B Pilot Flight Computer ships an update every 9 days, Site Calc Pro daily. The most recent releases landed on October 3, 2026 and October 7, 2026 respectively.

Scorecard3 real differences Ā· 3 level
E6B Pilot Flight Computer versus Site Calc Pro: the parameters behind the verdict, then further details
ParameterE6B Pilot Flight ComputerSite Calc Pro
PriceFreeFree
Update frequencyEvery 9 daysDaily — better
AdsNoNo
In-app purchasesYesNo — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.6 — better
Further details — not scored
Size2 MB85 MB
Age rating4+4+
Developer光 ęØTroy Knight

In-app purchases

1 purchases

E6B Pilot Flight Computer

One-time1
  • Unlock Nav-Log Cards$7.99
None

Site Calc Pro

No in-app purchases

Questions

Is E6B Pilot Flight Computer free?
E6B Pilot Flight Computer is free to download, with in-app purchases available.
Is Site Calc Pro free?
Site Calc Pro is free to download, with no in-app purchases.
Do E6B Pilot Flight Computer or Site Calc Pro have ads?
Neither E6B Pilot Flight Computer nor Site Calc Pro shows ads.
Which is updated more often, E6B Pilot Flight Computer or Site Calc Pro?
E6B Pilot Flight Computer ships an update every 9 days, and Site Calc Pro daily. Most recently, E6B Pilot Flight Computer was updated on October 3, 2026 and Site Calc Pro on October 7, 2026.

Other comparisons