Comparison

ReadyOp DT vs Mountain Worksheet

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

Head to head
About

ReadyOp DT

This utility app offers real-time communication and radio access to a specialized dashboard. It requires an active subscription to the platform to function.

Highlights
  • Real-time communication
  • Radio access
  • Dashboard integration
  • Subscription-based access
Features
Read full description

ReadyOp DT provides real-time communication and radio access to the ReadyOp Dashboard. Access to this application requires an active subscription to the ReadyOp platform.

About

Mountain Worksheet

Features
Read full description

**Conquer the Mountains with Confidence** Mountain Flying Worksheet is the essential tool for pilots operating in high-altitude terrain. Built by pilots, for pilots, this app delivers accurate, POH-based aircraft performance calculations specifically designed for mountain flying operations. **WHY MOUNTAIN FLYING WORKSHEET?** Flying in mountainous terrain demands precision. Thin air, high density altitudes, and challenging terrain leave no room for guesswork. Mountain Flying Worksheet eliminates uncertainty by providing real-time performance data extracted directly from Pilot Operating Handbooks, ensuring your flight planning is based on manufacturer specifications—not rough estimates. **REAL POH DATA** Unlike generic calculators, every calculation uses actual performance tables from official POHs: • Cessna 172S (Skyhawk) • Cessna 182T (Skylane) • Cessna T182T (Turbo Skylane) • Cessna T206H (Turbo Stationair) **KEY FEATURES** **Instant Airport Data** Enter any airport code and instantly retrieve elevation, temperature, and altimeter settings. Auto-fetch eliminates manual lookups and data entry errors. **Comprehensive Performance Calculations** • Rate of Climb (Departure, Enroute, Arrival) • Takeoff Distances (Ground Roll & 50' Obstacle) • Landing Distances (Ground Roll & 50' Obstacle) • Service Ceiling (300 fpm threshold) • Density Altitude & Pressure Altitude • Weight-adjusted performance for actual aircraft loading **Critical V-Speeds** • Vx (Best Angle of Climb) • Vy (Best Rate of Climb) • Va (Maneuvering Speed at actual weight) • Vra (Rough Air Speed) • All speeds calculated for your specific weight **Mountain-Specific Calculations** • Canyon Turn Speeds (with flap settings) • Temperature lapse rate for enroute calculations • Performance warnings for high density altitude • Flap configuration optimization **Professional PDF Reports** Generate compact, card-style PDF reports for your kneeboard or flight bag. All critical data in an easy-to-read format that fits your workflow. **Smart Performance Warnings** Automatic alerts when: • Density altitude exceeds 5,000 feet • Temperature exceeds 30°C (86°F) • Aircraft weight exceeds maximum gross weight • Climb performance falls below safe margins

Screenshots

ReadyOp DT2 screens
Mountain Worksheet4 screens

Verdict

The call

The clearest difference is iOS requirement: ReadyOp DT at 13.0 against Mountain Worksheet's 18.5. On price, update cadence, ads and in-app purchases 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

ReadyOp DT ships an update every 2 months, Mountain Worksheet every 5 weeks. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.

Scorecard1 real difference · 9 level
ReadyOp DT versus Mountain Worksheet: the parameters behind the verdict, then further details
ParameterReadyOp DTMountain Worksheet
PriceFreeFree
Rating3.5 (8 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings8 — better—
Update frequencyEvery 2 monthsEvery 5 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationSubscription—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better18.5
Further details — not scored
Size4 MB4 MB
Age rating4+4+
DeveloperReadyOp Communications, Inc.ezaero, Ltd.

In-app purchases

None

ReadyOp DT

No in-app purchases

None

Mountain Worksheet

No in-app purchases

Questions

Is ReadyOp DT free?
ReadyOp DT is free to download, with no in-app purchases.
Is Mountain Worksheet free?
Mountain Worksheet is free to download, with no in-app purchases.
Do ReadyOp DT or Mountain Worksheet have ads?
Neither ReadyOp DT nor Mountain Worksheet shows ads.
Which is updated more often, ReadyOp DT or Mountain Worksheet?
ReadyOp DT ships an update every 2 months, and Mountain Worksheet every 5 weeks. Most recently, ReadyOp DT was updated on October 23, 2026 and Mountain Worksheet on October 25, 2026.

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