Comparison

ACE vs GroundRollCalc

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

Head to head
About

ACE

This application allows users to create and manage checklists for Garmin avionics. It specifically supports the ACE checklist file format, making it ideal for pilots using systems like the G3X Touch.

Highlights
  • Checklist editor
  • ACE checklist file format support
  • Garmin avionics integration
  • G3X Touch compatibility
Read full description

A checklist editor for Garmin avionics that support the ACE checklist file format (such as the G3X Touch).

About

GroundRollCalc

Features
Read full description

Key Features Ground Roll Estimation Calculates expected takeoff ground roll based on: - Aircraft performance data - Weight and loading - Wind conditions - Density altitude - Runway slope and surface - Runway Visualization Graphical runway display with: - Estimated ground roll marker - Safety margin indicators - Remaining runway awareness Live GPS Mode (Optional) - Track actual takeoff roll in real time - Compare real-world performance to predicted values - Detect deviations from expected performance Aircraft & Airport Management - Store multiple aircraft profiles - Manage airport and runway data - Customize inputs for accurate calculations Built for Real-World Flying - Designed for clarity and speed in the cockpit - Clean interface optimized for iPad use - Focused on practical, decision-support information Important: GroundRollCalc is a supplemental performance tool and is not a substitute for approved aircraft performance data, POH/AFM guidance, or pilot judgment. Always verify performance calculations and operate in accordance with safe aviation practices. Data Sources Airport and aeronautical data may include publicly available datasets such as FAA and openAIP sources. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

GroundRollCalc4 screens

Verdict

The call

The clearest difference is in-app purchases: ACE at none against GroundRollCalc's 3. On price, ads, device support and iOS requirement 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. GroundRollCalc sells 3 in-app purchases, starting at $0.99 per month. ACE asks for nothing beyond the download.

Scorecard1 real difference · 9 level
ACE versus GroundRollCalc: the parameters behind the verdict, then further details
ParameterACEGroundRollCalc
PriceFreeFree
Rating5.0 (5 ratings) — better—
Positive reviews80.0% of reviews—
Number of ratings5 — better—
Update frequency—Every 5 days
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPad, MaciPhone, iPad
Requires iOS17.0 — better18.5
Further details — not scored
Size4 MB185 MB
Age rating4+4+
DeveloperPost River SoftwareRob Honeycutt

In-app purchases

None

ACE

No in-app purchases

3 purchases

GroundRollCalc

Subscriptions2
  • GroundRollCalc Pro Monthly$0.991 Month
  • GroundRollCalc Pro Yearly$9.991 Year
One-time1
  • Unlock Live GPS$5.99

Questions

Is ACE free?
ACE is free to download, with no in-app purchases.
Is GroundRollCalc free?
GroundRollCalc is free to download, with in-app purchases available.
Do ACE or GroundRollCalc have ads?
Neither ACE nor GroundRollCalc shows ads.

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