Comparison

Triangle & Angle calculator vs ASSESS EBT

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

Head to head
About

Triangle & Angle calculator

Easily solve geometry exercises and verify your calculations with this tool. It simplifies complex problems with a single click, making math more accessible.

Highlights
  • Solve geometry exercises
  • Check calculations
  • Simple click interface
  • Angle calculations
  • Formula solver
Features
Read full description

It is now easier to solve exercises and check his calculations. And with a simple click! For any question / suggestion: TeamTrigoIOS@gmail.com

About

ASSESS EBT

Features
Read full description

ASSESS EBT is a personal competency journal and aeronautical decision-making reference tool for commercial airline pilots intending to strengthen pilot's resilience. Built around the ICAO Doc 9995 Manual of Evidence-Based Training, ICAO Doc 9868 PANS-TRG and the IATA EBT Implementation Guide, ASSESS EBT helps you record operational events, self-assess your performance against observable behaviours, and track your competency development across real flights and simulator sessions; privately, on your device, with no data sent anywhere. EBT JOURNAL Record events from any flight or simulator session in a structured eight-step flow. Classify each event using the Equivalency of Malfunctions framework: Immediacy, Complexity, Degradation of Aircraft Control, Loss of Instrumentation, Management of Consequences, Environmental Threats, and Human Performance. Select the CBTA competencies involved, rate each observable behaviour on a five-point scale (Consistent to Never), complete a TEM self-assessment identifying threats and errors, and write your own debrief notes. Development areas, behaviours rated Sometimes or below, are flagged automatically and consolidated across all your sessions. ANALYTICS Track your competency development over time. See your average score per competency, identify the observable behaviours that appear most frequently as development areas, review your TEM outcome distribution, and follow trend lines across your last ten sessions. ADM TOOLS Access FORDEC and DODAR, two structured aeronautical decision-making frameworks widely used across commercial aviation. Both are operationally equivalent. Neither requires a subscription. The integrated airport scoring system supports the Options step with structured evaluation across approach capability, runway length, weather, proximity, medical support, maintenance, and commercial factors, providing an objective basis for the most consequential decision in any abnormal situation. LEARN MORE A comprehensive reference section covering the EBT paradigm, Competency-Based Training and Assessment (CBTA), the nine ICAO pilot competencies and their observable behaviours, how ADM frameworks connect to EBT competency development, the malfunction characteristics framework, and academic research behind structured decision-making tools. PRIVACY Everything stays on your device. No analytics. No tracking. No cloud sync. Individual event records can be exported as PDF reports and shared via AirDrop, email, or any app using the iOS share sheet. DISCLAIMER ASSESS EBT is an independent tool created by a commercial airline pilot. It is not an official publication and does not replace your operator's Standard Operating Procedures, Operations Manuals, or regulatory requirements. In the event of any conflict with company procedures, company procedures always take precedence. By downloading and using this app you agree to Apple's standard Licensed Application End User License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Triangle & Angle calculator4 screens
ASSESS EBT4 screens

Verdict

The call

The clearest difference is update cadence: ASSESS EBT at every 2 days against Triangle & Angle calculator's every 3 months. Triangle & Angle calculator's advantage is iOS requirement (15.0 vs 26.0). On price, ads, in-app purchases and device support 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. Triangle & Angle calculator sells 2 one-off in-app purchases and ASSESS EBT sells 1 in-app purchase, starting at $19.99 per year. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Triangle & Angle calculator ships an update every 3 months, ASSESS EBT every 2 days. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.

Scorecard2 real differences · 8 level
Triangle & Angle calculator versus ASSESS EBT: the parameters behind the verdict, then further details
ParameterTriangle & Angle calculatorASSESS EBT
PriceFreeFree
Rating4.1 (217 ratings) — better—
Positive reviews4.5% of reviews—
Number of ratings217 — better—
Update frequencyEvery 3 monthsEvery 2 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better26.0
Further details — not scored
Size7 MB2 MB
Age rating4+17+
DeveloperMaxime HaeyaertGonzalo Adolfo Garcia Held

Bugs and requests

Triangle & Angle calculator

Reported bugs

6 issues
  • Pop-up obstructs initial use
  • Cannot change settings due to pop-up
  • Formulas not visible after payment
  • App resets angles
  • Menu covers solution
Show 1 more
  • Rectangular triangle missing after update

Requested features

2 requests
  • Metric version available
  • Option to disable ads without payment

ASSESS EBT

Not enough reviews yet to summarise bugs or requests.

In-app purchases

2 purchases

Triangle & Angle calculator

One-time2
  • Deleting advertisements$0.99
  • Detail Calculations and formul$1.99
1 purchases

ASSESS EBT

Subscriptions1
  • ASSESS EBT7 Days trial$19.991 Year

Questions

Is Triangle & Angle calculator free?
Triangle & Angle calculator is free to download, with in-app purchases available.
Is ASSESS EBT free?
ASSESS EBT is free to download, with in-app purchases available.
Do Triangle & Angle calculator or ASSESS EBT have ads?
Neither Triangle & Angle calculator nor ASSESS EBT shows ads.
Which is updated more often, Triangle & Angle calculator or ASSESS EBT?
Triangle & Angle calculator ships an update every 3 months, and ASSESS EBT every 2 days. Most recently, Triangle & Angle calculator was updated on October 24, 2026 and ASSESS EBT on October 28, 2026.

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