Appviation vs Simplex Optima
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Appviation
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AppViation is available now for those aviation professionals looking to achieve their goals in communication by complying with the ICAO Language Proficiency requirements for Pilots and Air Traffic Controllers. AppViation is a concise and language skill oriented preparation for the EALTS and/or TEA exams. It has compiled a series of aviation-related exercises for you to practice your Aeronautical English in a really meaningful and realistic way, by focusing on the different areas of linguistic description assessed by ICAO (Pronunciation, structure, vocabulary, fluency, comprehension and interaction). AppViation is produced and distributed by Words Inc S.A.S., all rights reserved. For further information about Words Inc visit
Simplex Optima
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The general form of an optimization problem comprises a linear function of variables, also called "objective function" and a number of constraint inequalities. The app can facilitate a maximisation as well as minimisation problem bearing up to 7 variables and up to 6 contraint inequalities. The solution algorithm is implemented by constructing and manipulating the Simplex tableau before calculating the parameters for which the maximum value of the objective function is obtained.
Screenshots
Verdict
The clearest difference is price: Appviation at Free against Simplex Optima's $2.99. Appviation also leads on iOS requirement (9.0 vs 13.3). Simplex Optima's advantage is update cadence (every 5 days vs every 2 months). On 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
Appviation is free to download; Simplex Optima costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Appviation ships an update every 2 months, Simplex Optima every 5 days. The most recent releases landed on October 3, 2026 and September 10, 2026 respectively.
| Parameter | Appviation | Simplex Optima |
|---|---|---|
| Price | Free — better | $2.99 |
| Update frequency | Every 2 months | Every 5 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 13.3 |
| Further details — not scored | ||
| Size | 30 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | PappCorn SAS | Konstantinos Ladiellis |
In-app purchases
Appviation
No in-app purchases
Simplex Optima
No in-app purchases
Questions
Is Appviation free?
Is Simplex Optima free?
Do Appviation or Simplex Optima have ads?
Which is updated more often, Appviation or Simplex Optima?
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