Comparison

ATCPrep.com™ (ATSA Test Prep) vs Instrument Test Prep

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

Head to head
About

ATCPrep.com™ (ATSA Test Prep)

Prepare for FAA air traffic controller pre-employment screening with this comprehensive suite. It offers multiple training modules for ATSA and AT-SAT cognitive tests, including collision scenarios, visual relationships, and radar simulations. Supplemental math tests and a training assistant are also included.

Highlights
  • ATSA & AT-SAT cognitive test preparation
  • Air Traffic Collision Scenarios training
  • Radar simulation for air traffic control
  • Visual Relationships and Differences tests
  • Supplemental Math and Analogy tests
  • Performance evaluation and adaptive difficulty
Features
Read full description

Preparation Suite for FAA air traffic controller pre-employment screening (ATSA / AT-SAT) – Recommended by StuckMic – – For iPad only – Are you invited to the ATSA or AT-SAT pre-hiring screening for a career in FAA air traffic control? ATCPrep.com™ might be what you are looking for: an innovative and comprehensive preparation suite. It comprises four new training modules for ATSA (Air Traffic Collision Scenarios, Differences, Value Assignments and Relations, Visual Relationships), seven training modules for each of the AT-SAT cognitive tests, and four supplemental Math tests. ATSA Preparation Tests • Air Traffic Collision Scenarios: This test requires efficient conflict resolution (collision avoidance) in an airspace control sector while tackling math problems. • Differences: The test presents a sequence of individual numbers (1 - 9). You have to call the difference between the last and the latest number presented on your screen. • Value Assignments and Relations: The test splits in two parts. You have to recall learned letter-number-assignments during the first part and solve relational equations during the second part. • Visual Relationships: This test requires quick and accurate judgements of spatial relationships. AT-SAT Preparation Tests • Air Traffic Scenarios Test: This is an ATC radar simulation that updates in slideshow motion roughly every seven seconds. Participants are assigned control over an airspace sector with the task of managing incoming traffic as safely, swiftly and efficiently as possible. • Analogy Test: At this test participants have to recognize corresponding pairs of words or figures. • Angles Test: This is an approach to measure the ability to recognize angles correctly. • Applied Mathematics Test: Problems of this test require its takers to perform job-related calculations and estimations. • Dials Test: Participants have to read flight information from seven cockpit instruments and answer related questions. • Letter Factory Test: Participants are presented with a factory assembly line environment. The primary task is to pick up letters from the conveyor belts of the assembly line and place them into boxes of the corresponding color. This task is complemented by several subtasks test takers have to consider in their planning (e.g. box logistics and quality control). • Scan Test: Participants have to monitor the action on screen and respond to aircraft travelling at a speed beyond a given range of tolerance Supplemental Math Tests • Mental Arithmetic • Number Series • Numerical Estimation • Math Word Problems To hone training experience and outcome beyond a simulation of tests ATCPrep.com™ offers: • ATCPrep.com™ Training Assistant is always on your side. The tool guides you through the training modules, evaluates your performance development and sets tasks difficulty accordingly. This does not only hone your training experience but also its outcome. • ATCPrep.com™ Cloud allows a quick switch between training devices without losing your previous performance data. The use of this tool is optional. ATCPrep.com™ Cloud will also provide the valuable opportunity to benchmark your performance against anonymized pool performance stats from the ATCPrep.com™ user community. • This app also features embedded boards to exchange information and messages with other users and a support messaging client to approach the ATCPrep.com™ support team. • This app can be used both as a standalone training environment and also with an already existing ATCPrep.com™ account e.g. from the desktop version. Stats will synchronize automatically between all devices using the same account. For more details, please visit also www.ATCPrep.com

About

Instrument Test Prep

Prepare for your FAA Instrument Rating Knowledge Test with over 900 questions and detailed explanations. Customize study sessions, track your weakest areas, and take simulated exams that mirror the official test format. An optional upgrade unlocks a full ground school course with additional lessons and advanced features.

Highlights
  • Over 900 FAA questions and explanations
  • Customizable study sessions by topic and size
  • Focus on weakest topics and missed questions
  • Simulated FAA exams with correct question proportions
  • Detailed explanations and regulation references
  • Cross-device data syncing
Read full description

Over 900 FAA questions and explanations to help prepare for the FAA Instrument Rating Knowledge Test. Upgrade to the complete ground school course to unlock lessons, additional questions, statistics, and more (free trial available). ▸ Create custom study sessions based on topics, session size, and your overall mastery. Filters allow you to include or exclude questions that require the use of figures or an E6B. Some advanced filtering options require Premium Test Prep or Ground School upgrade. ▸ View most often missed FAA questions across all FlightReady users (requires Premium Test Prep or Ground School upgrade). ▸ Quickly identify and create study sessions focusing on your weakest topic (requires Premium Test Prep or Ground School upgrade). ▸ Create practice sessions from missed questions after a completed practice or exam session. ▸ Review missed questions after a practice or exam session. ▸ Take simulated FAA exams administered under the same rules and time constraints as the actual Instrument Rating exam. Unlike other test prep apps, our exams present the correct proportion of questions from each knowledge area per the ACS. ▸ Sync your data and course progress across on all of your iOS devices (requires Premium Test Prep or Ground School upgrade). ▸ Access a library of study resources for the Instrument Rating - Airplane ▸ Question bank covers all areas of the FAA Instrument Rating Airman Certification Standards to ensure thorough preparation for the knowledge test. ▸ Detailed explanations and references for all questions, including the text of the regulation where applicable.

Screenshots

Instrument Test Prep4 screens

Verdict

The call

The clearest difference is review sentiment: Instrument Test Prep at 88% against ATCPrep.com™ (ATSA Test Prep)'s 0%. Instrument Test Prep also leads on price (Free vs $39.99) and rating (4.9 vs 2.3). ATCPrep.com™ (ATSA Test Prep)'s advantage is in-app purchases (none vs 4) and iOS requirement (13.0 vs 17.1). On ads 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

Instrument Test Prep is free to download; ATCPrep.com™ (ATSA Test Prep) costs $39.99 up front. Instrument Test Prep sells 4 one-off in-app purchases. ATCPrep.com™ (ATSA Test Prep) asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Instrument Test Prep holds the better App Store score, 4.9 against 2.3. That said, the two scores are not equally well evidenced: Instrument Test Prep has 156 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 0% of ATCPrep.com™ (ATSA Test Prep)'s written reviews are positive against 88% of Instrument Test Prep's.

UpkeepUpdate frequency

ATCPrep.com™ (ATSA Test Prep) ships an update every 5 months, Instrument Test Prep fortnightly. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.

Scorecard8 real differences · 2 level
ATCPrep.com™ (ATSA Test Prep) versus Instrument Test Prep: the parameters behind the verdict, then further details
ParameterATCPrep.com™ (ATSA Test Prep)Instrument Test Prep
Price$39.99Free — better
Rating2.3 (4 ratings)4.9 (156 ratings) — better
Positive reviews0.0% of reviews87.5% of reviews — better
Number of ratings4156 — better
Update frequencyEvery 5 monthsFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPadiPhone, iPad — better
Requires iOS13.0 — better17.1
Further details — not scored
Size79 MB122 MB
Age rating4+12+
DeveloperAviation Media & IT GmbHAeroapps Technology

Customer experience

ATCPrep.com™ (ATSA Test Prep)

All ratings4 ratings
Positive0.0%
Neutral25.0%
Negative75.0%
Written reviews9 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Instrument Test Prep

All ratings155 ratings
Positive98.1%
Neutral0.6%
Negative1.3%
Written reviews8 reviews
Positive87.5%
Neutral0.0%
Negative12.5%

In-app purchases

None

ATCPrep.com™ (ATSA Test Prep)

No in-app purchases

4 purchases

Instrument Test Prep

One-time4
  • Instrument Ground School TrialFree
  • Instrument Rating Test Prep$49.99
  • Upgrade to Ground School$129.99
Show 1 more
  • Instrument Ground School$179.99

Questions

Is ATCPrep.com™ (ATSA Test Prep) free?
ATCPrep.com™ (ATSA Test Prep) costs $39.99, with no in-app purchases.
Is Instrument Test Prep free?
Instrument Test Prep is free to download, with in-app purchases available.
Which has better reviews, ATCPrep.com™ (ATSA Test Prep) or Instrument Test Prep?
Instrument Test Prep is rated higher. ATCPrep.com™ (ATSA Test Prep) averages 2.3 out of 5 from 4 ratings, while Instrument Test Prep averages 4.9 from 156 ratings.
Do ATCPrep.com™ (ATSA Test Prep) or Instrument Test Prep have ads?
Neither ATCPrep.com™ (ATSA Test Prep) nor Instrument Test Prep shows ads.
Which is updated more often, ATCPrep.com™ (ATSA Test Prep) or Instrument Test Prep?
ATCPrep.com™ (ATSA Test Prep) ships an update every 5 months, and Instrument Test Prep fortnightly. Most recently, ATCPrep.com™ (ATSA Test Prep) was updated on November 1, 2026 and Instrument Test Prep on November 2, 2026.

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