Comparison

Audio Maths vs DLR

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

Head to head
About

Audio Maths

Features
Read full description

Improve your mental arithmetic with Audio Maths – the app that challenges you with audio math problems! Listen to each problem, think quickly, and enter your answer. Perfect for on the go or in between tasks – no screen focus required. CUSTOMIZED TRAINING: - Choose which types of calculations you want to practice (+, –, ×, ÷) (including powers of 2 and 3). - Set the number of problems - Set your time limit per problem LEARN AT YOUR OWN PACE From beginners to math pros – Audio Maths grows with you. Improve your concentration and calculation speed in a fun way. Choose your level of difficulty for optimal practice. Ideal for preparing for aptitude tests Audio Maths is ideal for preparing for the DLR test and similar assessment training courses that require fast and acoustic mental arithmetic. HIGHLIGHTS: - Auditory tasks: Calculate using only your hearing - Fully customizable: Difficulty, speed, and scope - Time mode - Progress through repetition and focus - Ideal for pilot test training and concentration exercises - Audible signal a few seconds before expiry to simulate test conditions as closely as possible Become a math whiz – with Audio Maths. Please note: Accessing the shown functionality requires an active subscription or a lifetime access. Both can be purchased within the app. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

DLR

Prepare comprehensively for the DLR aptitude test for aspiring pilots. Features AI-powered coaching, personalized training plans, and practice for all ten test sections. Track your progress and connect with a community of fellow candidates.

Highlights
  • All 10 DLR test sections covered
  • AI-powered coaching and analysis
  • Personalized adaptive training plans
  • Clearance Score for progress tracking
  • Crew and community forums
  • Pass guarantee with subscription
Features
Read full description

Your dream of flying starts here. Prepare thoroughly for the DLR test and pass it on your first try. We are the most comprehensive preparation for the DLR aptitude test for aspiring pilots—featuring all ten sections of the DLR test, AI-powered coaching, and a training plan that adapts to you. Not the other way around. Whether your test date is in three weeks or six months: The app shows you what to focus on every day, identifies your weaknesses, and brings you step by step to the level you need to pass. ALL 10 TEST TYPES – NO GAPS Practice KRN, RMS, WFG, TVT, VMC, ENS, SKT, OWT, PPT, and MIC — the question formats you’ll encounter on test day. Each practice session is algorithmically generated. Memorization? Out of the question. And the TVT question bank also prepares you perfectly for this — with over 900 questions from seven areas (Mechanics, Thermodynamics, Electricity, Optics, Waves, General Physics, and General Engineering), including explanations. FLIGHTBRAIN – YOUR AI CO-PILOT After each practice run, our FlightBrain AI analyzes your results: What went well, where are you losing points, and what should you practice next. You’ll also receive recommendations (available only in the web app) – based on your actual practice data. YOUR PERSONAL TRAINING PLAN Enter your test date, and the app creates a training plan tailored to your pace and progress. Every day, you’ll know exactly which test types are coming up and in what order. Includes weekly goals and calendar sync. And because only you know how you learn, the plan adapts to your learning progress and pace at all times. CLEARANCE SCORE Your Clearance Score shows you at a glance how close you are to passing—calculated from over 40 cognitive skills tested in the actual exam. CREW & COMMUNITY You’ll be automatically assigned to a crew—made up of other candidates with similar test dates. Exchange ideas in the forum, share results, and don’t study alone. PASS GUARANTEE We’re confident that you’ll pass with our app. If not: With a minimum 3-month subscription and 100 completed practice tests, we’ll extend your access for another 3 months at no cost. 6 DIFFICULTY LEVELS PER TEST You start at an accessible level. As soon as you consistently meet the criteria for a level, the difficulty automatically increases—with more tasks, shorter time limits, and more complex challenges. This ensures you’re always training at exactly the right level. DLR SIMULATION Complete all tests in succession—with set breaks and under time pressure. Just like on the actual test day. Afterward, FlightBrain evaluates your overall performance (available only in the web app). STRENGTHS AND WEAKNESSES ANALYSIS You’ll see exactly which skills are strong, where you’re losing points, and at what time of day you perform best. FOCUS TRAINING Target your weaknesses—the app generates exercises focused specifically on the skill that’s holding you back. Your test date is set. Now your preparation is too. DLR-TEST.TRAINING is an independent service and is not affiliated with the German Aerospace Center (DLR).

Screenshots

Audio Maths4 screens
DLR4 screens

Verdict

The call

The clearest difference is update cadence: DLR at every 4 days against Audio Maths's every 2 weeks. 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. Audio Maths sells 2 in-app purchases, starting at $3.99 per month and DLR sells 6 in-app purchases, starting at $45.00 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Audio Maths ships an update every 2 weeks, DLR every 4 days. The most recent releases landed on June 11, 2026 and September 10, 2026 respectively.

Scorecard1 real difference · 7 level
Audio Maths versus DLR: the parameters behind the verdict, then further details
ParameterAudio MathsDLR
PriceFreeFree
Positive reviews—100.0% of reviews
Update frequencyEvery 2 weeksEvery 4 days — better
AdsNoNo
In-app purchasesYesYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better17.6
Further details — not scored
Size11 MB41 MB
Age rating4+4+
DeveloperFelix DesideratoJannis Mertens

In-app purchases

2 purchases

Audio Maths

Subscriptions1
  • Monthly Access3 Days trial$3.991 Month
One-time1
  • Lifetime Access$5.99
6 purchases

DLR

Subscriptions6
  • Economy$45.001 Month
  • Economy3 Days trial$45.001 Month
  • Business Class$89.003 Months
Show 3 more
  • Business Class3 Days trial$89.003 Months
  • First Class$129.006 Months
  • First Class3 Days trial$129.006 Months

Questions

Is Audio Maths free?
Audio Maths is free to download, with in-app purchases available.
Is DLR free?
DLR is free to download, with in-app purchases available.
Do Audio Maths or DLR have ads?
Neither Audio Maths nor DLR shows ads.
Which is updated more often, Audio Maths or DLR?
Audio Maths ships an update every 2 weeks, and DLR every 4 days. Most recently, Audio Maths was updated on June 11, 2026 and DLR on September 10, 2026.

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