Comparison

Tech Logbook By DCR vs PilotCalc Pro

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

Head to head
About

Tech Logbook By DCR

Features
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To be able to fill maintenance task on the logbook to show to aviation authorities proof of work. With PDF export of the entries and CV.

About

PilotCalc Pro

Features
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PilotCalc Pro is a fast, offline-first flight calculator built by a pilot, for pilots. 27 focused calculators across regulatory reference, core E6B, planning, and conversions โ€” each designed for the cockpit: large, readable outputs, dual Zulu/local times where it matters, and a keypad that never blocks a decimal point or a minus sign. Everything works offline. No account, no ads, no tracking. REGULATORY โ€ข Max FDP โ€” maximum flight duty period (GCAA; advisory) โ€ข Crew Rest โ€” in-flight rest timing with an on-device rest timer โ€ข Converted Met Visibility โ€” from reported visibility CORE โ€ข Pressure Altitude โ€” indicated altitude + QNH โ†’ pressure altitude โ€ข Density Altitude โ€” pressure altitude + OAT โ†’ density altitude โ€ข TAS / IAS / CAS / Mach โ€” four-way airspeed solver โ€ข Wind Components โ€” crosswind, headwind & drift PLANNING โ€ข Time ยท Speed ยท Distance โ€” solve any of the three โ€ข Fuel โ€” burn, endurance & required fuel โ€ข Fuel Uplift โ€” refuel cross-check; USG โ‡„ kg, uplift sum & discrepancy โ€ข Climb Gradient โ€” gradient โ‡„ rate of climb โ‡„ ground speed โ€ข Descent โ€” top of descent & crossing restrictions โ€ข Glide โ€” engine-out glide range (still air) โ€ข Cloud Base โ€” convective cloud base from temperature/dewpoint โ€ข Holding Pattern โ€” entry, timing & geometry โ€ข Sun Events โ€” sunrise, sunset & twilight โ€ข Sun En Route โ€” sunrise/sunset along a route in flight โ€ข Weight & Balance โ€” weight, CG & envelope โ€ข NEO Crosswind on Ground โ€” A320/A321neo takeoff crosswind + tailwind envelope โ€ข Oceanic Crossing โ€” North Atlantic & Pacific (PACOTS) oceanic tracks REFERENCE โ€ข Converter โ€” length, speed, temperature, pressure, mass, volume โ€ข Metric Altitude โ€” China/Russia metric levels โ†’ feet โ€ข RVR / Visibility โ€” RVR & visibility (FAA ft โ‡„ m) โ€ข Currency โ€” offline currency converter โ€ข Cold Temp Correction โ€” cold-day altitude correction (ICAO table) โ€ข WX Decode โ€” read a METAR, TAF, D-ATIS or SNOWTAM in plain language โ€ข Dangerous Goods โ€” decode a NOTOC drill code; look up a UN/ID number FASTER WEATHER INPUT Paste a raw METAR into the weather calculators โ€” or scan printed weather text with the camera โ€” to auto-fill the inputs. No manual transcription. PRIVACY No accounts. No ads. No tracking. No third-party analytics. No network. Your data never leaves your device. IMPORTANT โ€” ADVISORY USE ONLY PilotCalc Pro is a planning and educational aid. Its outputs โ€” including all regulatory figures such as flight-duty-time limits โ€” are advisory and are not a substitute for official aeronautical information, approved aircraft documentation, your operator's Operations Manual, or current charts and NOTAMs. Always verify against authoritative sources. The pilot in command is solely responsible for all operational decisions.

Screenshots

Tech Logbook By DCR4 screens
PilotCalc Pro4 screens

Verdict

The call

The clearest difference is in-app purchases: PilotCalc Pro at none against Tech Logbook By DCR's 1. Tech Logbook By DCR's advantage is update cadence (monthly vs every 3 months) and iOS requirement (15.6 vs 18.6). On price, ads and device support there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Tech Logbook By DCR sells 1 in-app purchase, starting at $8.99 per year. PilotCalc Pro asks for nothing beyond the download.

UpkeepUpdate frequency

Tech Logbook By DCR ships an update monthly, PilotCalc Pro every 3 months. The most recent releases landed on October 12, 2026 and October 25, 2026 respectively.

Scorecard3 real differences ยท 3 level
Tech Logbook By DCR versus PilotCalc Pro: the parameters behind the verdict, then further details
ParameterTech Logbook By DCRPilotCalc Pro
PriceFreeFree
Update frequencyMonthly โ€” betterEvery 3 months
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS15.6 โ€” better18.6
Further details โ€” not scored
Size20 MB18 MB
Age rating4+4+
DeveloperCYRIL DEPECKERVinayak Raghubir Sharma

In-app purchases

1 purchases

Tech Logbook By DCR

Subscriptions1
  • Premium Yearly14 Days trial$8.991 Year
None

PilotCalc Pro

No in-app purchases

Questions

Is Tech Logbook By DCR free?
Tech Logbook By DCR is free to download, with in-app purchases available.
Is PilotCalc Pro free?
PilotCalc Pro is free to download, with no in-app purchases.
Do Tech Logbook By DCR or PilotCalc Pro have ads?
Neither Tech Logbook By DCR nor PilotCalc Pro shows ads.
Which is updated more often, Tech Logbook By DCR or PilotCalc Pro?
Tech Logbook By DCR ships an update monthly, and PilotCalc Pro every 3 months. Most recently, Tech Logbook By DCR was updated on October 12, 2026 and PilotCalc Pro on October 25, 2026.

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