Comparison

ISTQB Practice vs SDET Interview Coach

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

Head to head
About

ISTQB Practice

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Pass your ISTQB CTFL and CT-GenAI with confidence Prepare effectively for the ISTQB Certified Tester Foundation Level (CTFL) and Certified Tester - Generative AI (CT-GenAI) exam with realistic full-length mock exams designed to reflect the structure and difficulty of the real assessment. This app is built for serious candidates who want more than flashcards β€” it simulates the exam experience. What’s Included: β€’ 4 full-length 40-question mock exams β€’ Realistic exam-style difficulty β€’ Instant scoring with pass mark feedback (26/40) β€’ Detailed answer explanations β€’ Clean, distraction-free exam interface Practice under timed conditions, identify weak areas, and strengthen your understanding of core testing principles before sitting the real exam. Whether you are self-studying or attending a training course, this app provides structured exam practice to improve confidence and performance.

About

SDET Interview Coach

Features
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SDET Interview Coach is the most comprehensive mobile interview prep app for Software Development Engineers in Test, QA Automation Engineers, and Test Engineers β€” from junior to staff level. Built by a 20-year SDET who has hired and been hired across Playwright, Selenium, Cypress, Java, Python, TypeScript, REST-assured, k6, JMeter, pytest, Jest, and AI-native testing. WHAT YOU GET β€’ 800+ practitioner-grade SDET interview questions, sortable by seniority (Junior β†’ Lead) and stack (Playwright, Selenium, Java, Python, TypeScript, AI-native) β€’ Real mock interview scenarios β€” 8 to 15 questions in a timed session, mixed by difficulty, just like the real loop β€’ Self-grading + spaced repetition β€” questions you got wrong come back at the right interval, so you actually learn instead of forgetting β€’ AI feedback on every answer, written like a senior teammate at the whiteboard AI BOOTCAMP TRACKS (NEW) For manual QAs transitioning to SDET / Automation roles: β€’ Playwright with TypeScript β€” the modern automation default β€’ Playwright with Python β€” for Python-stack teams β€’ JMeter performance testing β€’ CI/CD pipelines for testers β€’ API & contract testing Each track has scenario-based AI coaching that adapts to your level. Tap "Ask the Coach" inside any track for follow-up questions in plain English. JOB MATCH Paste a real job description and your CV. Get 25 bespoke interview questions tailored to the role plus a panel briefing on what to expect. 60-second turnaround. WEEKLY CHALLENGE Timed practice with the global community. New theme every Monday β€” drill on flaky tests one week, contract testing the next. ASK SDET COACH An AI tutor for any test-automation question. No more Stack Overflow rabbit holes when you're stuck on Playwright fixtures, Selenium waits, or k6 scripting. WHO IT'S FOR β€’ Manual QA engineers transitioning to SDET / Automation β€’ Junior SDETs prepping for their first promotion interview β€’ Mid / Senior SDETs interviewing at a new company and shaking off the rust β€’ Lead SDETs cramming for a system-design or framework-architecture round β€’ Career changers entering software quality engineering THE QUESTIONS Each question has a short answer (the real answer, not a preview), a long-form explanation with tradeoffs and gotchas, code samples, follow-up questions the interviewer might ask, and watch-outs (anti-patterns to avoid). Written like a senior teammate, not a textbook. PRO FEATURES (Β£4.99/month after 7-day free trial) β€’ Full 800+ question bank, refreshed nightly β€’ Unlimited mock interviews + spaced repetition β€’ Job Match β€” bespoke prep from any JD β€’ AI feedback on every answer β€’ All five AI Bootcamp Tracks β€’ Monthly content drops as the SDET landscape evolves LITE PRICING Lower-income regions get the same core features at $2.99/month β€” because interview prep shouldn't be locked behind a Western salary. Privacy: we don't sell your data, don't run ads, don't track you across apps. Your answers and progress are yours. Support: support@sdetcoach.com Subscriptions auto-renew at the listed price unless cancelled at least 24h before the period ends. Manage or cancel in iPhone Settings β†’ Apple ID β†’ Subscriptions. Terms of Use (EULA): https://sdetcoach.com/terms Privacy Policy: https://sdetcoach.com/privacy

Screenshots

ISTQB Practice4 screens
SDET Interview Coach4 screens

Verdict

The call

The clearest difference is in-app purchases: ISTQB Practice at none against SDET Interview Coach's 2. SDET Interview Coach's advantage is update cadence (every 3 days vs every 9 days) and iOS requirement (15.1 vs 26.2). On price, ads and device support there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. SDET Interview Coach sells 2 in-app purchases, starting at $5.99 per month. ISTQB Practice asks for nothing beyond the download.

UpkeepUpdate frequency

ISTQB Practice ships an update every 9 days, SDET Interview Coach every 3 days. The most recent releases landed on September 18, 2026 and September 5, 2026 respectively.

Scorecard3 real differences Β· 3 level
ISTQB Practice versus SDET Interview Coach: the parameters behind the verdict, then further details
ParameterISTQB PracticeSDET Interview Coach
PriceFreeFree
Update frequencyEvery 9 daysEvery 3 days β€” better
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhoneiPhone, iPod β€” better
Requires iOS26.215.1 β€” better
Further details β€” not scored
Size7 MB44 MB
Age rating4+4+
DeveloperJulian CambridgeMitchell Agoma

In-app purchases

None

ISTQB Practice

No in-app purchases

2 purchases

SDET Interview Coach

Subscriptions2
  • SDET Coach Pro - Monthly7 Days trial$5.991 Month
  • SDET Coach Pro - Annual7 Days trial$69.991 Year

Questions

Is ISTQB Practice free?
ISTQB Practice is free to download, with no in-app purchases.
Is SDET Interview Coach free?
SDET Interview Coach is free to download, with in-app purchases available.
Do ISTQB Practice or SDET Interview Coach have ads?
Neither ISTQB Practice nor SDET Interview Coach shows ads.
Which is updated more often, ISTQB Practice or SDET Interview Coach?
ISTQB Practice ships an update every 9 days, and SDET Interview Coach every 3 days. Most recently, ISTQB Practice was updated on September 18, 2026 and SDET Interview Coach on September 5, 2026.

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