Comparison

SignFlow BSL vs Certified Safety Professional

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

Head to head
About

SignFlow BSL

Features
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Learn British Sign Language in a simple, visual, and engaging way with SignFlow. Whether you are completely new to BSL, building your vocabulary, or improving your signing confidence, SignFlow gives you practical tools to learn, practise, and remember signs at your own pace. WATCH AND LEARN Explore a growing library of British Sign Language videos covering the alphabet, numbers, everyday words, and useful topics. Search for signs or browse helpful categories such as food, family, animals, weather, transport, technology, jobs, and more. Each video includes learning-friendly playback tools: โ€ข Slow down signs to study each movement โ€ข Loop videos for repeated practice โ€ข Swipe between signs without leaving the player โ€ข View extra explanations when available โ€ข Share useful signs with friends and family PRACTISE WITH YOUR CAMERA Learning becomes easier when you can see yourself sign. Use the practice camera to record yourself performing a sign, then compare your recording with the original demonstration. Play both videos together or separately to review your movements, practise step by step, and build confidence. MAKE LEARNING INTERACTIVE Challenge yourself with activities designed to strengthen recognition, memory, and understanding: โ€ข Multiple-choice video quizzes โ€ข Interactive memory-card games โ€ข Exercises organised by topic โ€ข Results and quiz-accuracy tracking TRACK YOUR WEEKLY PROGRESS Stay motivated with a weekly learning dashboard that helps you follow your activity, including: โ€ข Signs watched โ€ข Exercises completed โ€ข Quiz accuracy โ€ข Memory games played โ€ข Daily learning activity SAVE YOUR FAVOURITE SIGNS Create your own collection of signs you want to practise again. Search your favourites and quickly return to important vocabulary whenever you need it. LEARN WITH OFFLINE SUPPORT Recently watched videos are cached for smoother playback. Favourite videos can stay available offline, making it easier to continue practising when your internet connection is limited. AVAILABLE IN MULTIPLE LANGUAGES SignFlow supports English, Arabic, French, Spanish, German, Dutch, Italian, Korean, Japanese, and Simplified Chinese. START LEARNING FOR FREE Download SignFlow and practise all alphabet videos from Aโ€“Z and number videos from 1โ€“10 for free. Unlock every sign, category, and exercise with one Lifetime Access purchase. No monthly subscription. Download SignFlow and begin your British Sign Language journey today.

About

Certified Safety Professional

Features
Read full description

Certified Safety Professional (CSP) exam prep with BCSP practice tests. Why ExamCert.App ? Online Mock Exam (Just like a real exam) Up-to-date questions, reviewed and refreshed regularly. Lifetime access & lifetime updates Quality Question with explanation (Just like real questions) 24/7 Chat & Email Support Ready to Pass CSP - Certified Safety Professional? Domain 1: Advanced Science and Math (12%) Domain 2: Management Systems (17%) Domain 3: Risk Management (10%) Domain 4: Advanced Safety Concepts (20%) Domain 5: Emergency Preparedness, Fire Prevention, and Security (9%) Domain 6: Occupational Health and Ergonomics (10%) Domain 7: Environmental Management Systems (6%) Domain 8: Training/Education (9%) Domain 9: Law and Ethics (7%) WHY CHOOSE OUR APP? 600+ Practice Questions - Expertly crafted questions covering all exam objectives Detailed Explanations - Understand the "why" behind every answer Multiple Question Types - Single choice, multiple choice, and more Offline Mode - Study anywhere, anytime without internet connection Progress Tracking - Monitor your improvement with detailed statistics Study Guide - Comprehensive reading materials for each exam domain Daily Reminders - Stay on track with customizable study notifications STUDY MODES Practice Mode - Learn at your own pace with instant feedback Exam Simulation - Timed tests that mirror the real exam experience Review Mode - Focus on questions you've answered incorrectly Bookmarks - Save difficult questions for later review Performance Analytics - Track your readiness across all domains PREMIUM FEATURES Unlock the full potential of your exam preparation with Premium access: - Access to ALL 600+ practice questions - Complete Study Guide with in-depth explanations - Unlimited exam simulations - Priority updates with new questions SUPPORT Have questions or feedback? Contact us at support@examcert.app Privacy Policy: https://www.examcert.app/privacy Terms of Service: https://www.examcert.app/terms DISCLAIMER All content provided in this application is for educational and practice purposes only. The practice questions and study materials are designed to help candidates prepare for the CSP - Certified Safety Professional certification exam and do not represent actual exam questions from BCSP. This app does not guarantee that users will pass the CSP exam. Exam results depend on individual preparation, experience, and understanding of the subject matter. All trademarks, service marks, trade names, and logos referenced herein belong to their respective owners. Any reference to BCSP, CSP, or related certification programs is purely for descriptive purposes. By using this application, you acknowledge and agree that the developers are not responsible for any exam outcomes or certification decisions made by BCSP. This application is an independent exam preparation resource and is not affiliated with, endorsed by, sponsored by, or associated with the Board of Certified Safety Professionals (BCSP) or any of its subsidiaries. CSP (Certified Safety Professional) is a registered trademark of the Board of Certified Safety Professionals (BCSP).

Screenshots

SignFlow BSL4 screens
Certified Safety Professional4 screens

Verdict

The call

The clearest difference is iOS requirement: Certified Safety Professional at 15.0 against SignFlow BSL's 17.6. On price, update cadence, ads and in-app purchases there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. SignFlow BSL sells 5 one-off in-app purchases and Certified Safety Professional sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

SignFlow BSL ships an update fortnightly, Certified Safety Professional every 3 weeks. The most recent releases landed on October 31, 2026 and October 28, 2026 respectively.

Scorecard1 real difference ยท 5 level
SignFlow BSL versus Certified Safety Professional: the parameters behind the verdict, then further details
ParameterSignFlow BSLCertified Safety Professional
PriceFreeFree
Update frequencyFortnightly โ€” betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad, iPod โ€” better
Requires iOS17.615.0 โ€” better
Further details โ€” not scored
Size20 MB44 MB
Age rating4+4+
DeveloperDatatid ASEXAMCERT PTY LTD

In-app purchases

5 purchases

SignFlow BSL

One-time5
  • Small Tip$1.99
  • Generous Support$4.99
  • SignFlow BSL Lifetime$14.99
Show 2 more
  • Amazing Support$19.99
  • SignFlow Champion$99.99
2 purchases

Certified Safety Professional

One-time2
  • 200 AI Credits$1.99
  • Unlock Premium$5.99

Questions

Is SignFlow BSL free?
SignFlow BSL is free to download, with in-app purchases available.
Is Certified Safety Professional free?
Certified Safety Professional is free to download, with in-app purchases available.
Do SignFlow BSL or Certified Safety Professional have ads?
Neither SignFlow BSL nor Certified Safety Professional shows ads.
Which is updated more often, SignFlow BSL or Certified Safety Professional?
SignFlow BSL ships an update fortnightly, and Certified Safety Professional every 3 weeks. Most recently, SignFlow BSL was updated on October 31, 2026 and Certified Safety Professional on October 28, 2026.

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