Comparison

Explain Everything Whiteboard vs HDProEx

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

Head to head
About

Explain Everything Whiteboard

An interactive whiteboard app for creating and sharing video lessons, notes, and drawings. It offers real-time collaboration, PDF annotation, and engagement tools to enhance teaching and learning.

Highlights
  • Infinite canvas for drawing and notes
  • Record and edit whiteboard video lessons
  • Real-time collaboration
  • PDF annotation
  • Interactive engagement apps (Polling, Timer, Spinner)
  • Import and enrich materials with various media
Features
Read full description

The iPad App Store Trend of the Year 2020 award-winning interactive whiteboard and note taking app for iPad. With over 25 million downloads across the globe, Explain Everything helps teachers and students with every day learning. Explain Everything Advanced, Promethean's award-winning cloud-based plan, is one of the most dynamic, easy-to-use, and powerful lesson creation and delivery tools on the market today. Explain Everything is an interactive whiteboard, built to create notes and make drawings, explain concepts and share boards anywhere. Make notes and draw together on the infinite canvas. Use sticky notes, work with imported documents, and annotate PDFs. Easily record whiteboard videos and share the entire process of explaining a lesson. Use real-time collaboration to stay on the same page with your students or team. Our customers love using Explain Everything to: • Record and edit whiteboard video lessons, then share them automatically with your preferred cloud drive! • Capture ideas, create interactive presentations, and use PDF annotation for teaching purposes. • Use engagement apps such as Polling, Timer, and Spinner to promote student participation and deep focus. • Draw, write, sketchnote, visualize, and scribble using Apple Pencil then easily present materials both in-classroom or online. • Enrich your materials with images and GIFs, Sticky Notes, Clipart, 3D Models, Shapes, Web Browser, Equations, hyperlinks, text boxes and notes grid. • Digitize and store materials in one place thanks to the Explain Everything Drive cloud; available from any device, anywhere. • Collaborate with students by hosting group assignments in the classroom and in the cloud. • Broadcast through SharePlay or popular conferencing tools, including Zoom or Microsoft Teams. New Activities within Advanced Plan We’re coming with new activities to enhance your lessons and create some fun throughout your classroom. Launch and play activities right from your whiteboard canvas. Crossword – Add a list of words, provide image or text clues, and Explain Everything will generate a crossword for you. Memory game – Turn a set of images into a randomized memory pair-finding game. Matching game – Build a matching game from a collection of images, shapes, and text. Promethean Engagement Apps We’ve enhanced our Explain Everything Advanced plan with other new features, including Promethean’s ever-popular Spinner, Timer, and Polling apps; all to improve your teaching experience in the classroom. Polling – ask questions and receive responses from students instantly. Timer – use clock and stopwatch to measure time and improve executive functioning skills. Spinner – randomly select items from the built-in templates or your own lists to add excitement to any class. If you enjoy using Explain Everything please leave us a review! https://explaineverything.com/terms-of-use/

About

HDProEx

Features
Read full description

HDProEx is a practical learning platform for students, engineers, and professionals who want to master PCB Design and Hardware Design through structured training, projects, mentorship, and community support. What You'll Learn • PCB Design Blueprint • Hardware Design Blueprint • Component Selection and Circuit Design • Library Creation • Power Supply Design • DFM and DFA • Signal Integrity Basics • IoT Hardware Design • Industry Design Workflow • Career Growth and Interview Preparation Features • Structured Learning Paths • Lifetime Course Access • Practical Assignments • Downloadable Resources • Community Support • Live Workshops and Webinars • Industry-Oriented Training • Career Guidance Who Is This For? • Engineering Students • Fresh Graduates • PCB Designers • Hardware Engineers • Electronics Enthusiasts • Working Professionals Our Mission At HDProEx, our mission is to help learners bridge the gap between academic knowledge and real-world hardware product development by providing practical, industry-focused education. Learn • Build • Excel

Screenshots

Explain Everything Whiteboard4 screens
HDProEx4 screens

Verdict

The call

The clearest difference is update cadence: Explain Everything Whiteboard at fortnightly against HDProEx's monthly. Explain Everything Whiteboard also leads on device support (3 vs 1). On price, ads, in-app purchases and iOS requirement 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. Explain Everything Whiteboard sells 11 in-app purchases, starting at $9.99 per month and HDProEx sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Explain Everything Whiteboard ships an update fortnightly, HDProEx monthly. The most recent releases landed on November 1, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 8 level
Explain Everything Whiteboard versus HDProEx: the parameters behind the verdict, then further details
ParameterExplain Everything WhiteboardHDProEx
PriceFreeFree
Rating4.6 (8.9K ratings) — better—
Positive reviews47.9% of reviews—
Number of ratings8.9K — better—
Update frequencyFortnightly — betterMonthly
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Mac — betteriPhone
Requires iOS17.016.4 — better
Further details — not scored
Size312 MB85 MB
Age rating+417+
DeveloperPromethean Ltd.TagMango Inc

Bugs and requests

Explain Everything Whiteboard

Reported bugs

4 issues
  • Inability to select desired controls
  • Recordings cutting off audio
  • Projects not saving properly
  • Restricted account limits

Requested features

6 requests
  • Toggle option for consistent line width
  • Improved pen and drawing tools
  • Better undo/redo functionality
  • Ability to move audio clips
  • Animated GIF support
Show 1 more
  • Customizable font size

HDProEx

Not enough reviews yet to summarise bugs or requests.

In-app purchases

11 purchases

Explain Everything Whiteboard

Subscriptions11
  • Individual Monthly Plan7 Days trial$9.991 Month
  • [LEGACY] Individual Monthly$12.991 Month
  • [LEGACY] EDU Group, Monthly$12.991 Month
Show 8 more
  • [LEGACY] Individual Monthly7 Days trial$12.991 Month
  • Solo Teacher Plan1 Year trial$34.991 Year
  • [LEGACY] Solo Teacher Plan7 Days trial$34.991 Year
  • Advanced Plan7 Days trial$69.001 Year
  • Individual Annual Plan1 Year trial$89.991 Year
  • Individual Annual Plan7 Days trial$89.991 Year
  • [LEGACY] Individual Annual2 variants$129.991 Year
  • [LEGACY] EDU Group, Annual$129.991 Year
1 purchases

HDProEx

One-time1
  • Gold Membership$49.99

Questions

Is Explain Everything Whiteboard free?
Explain Everything Whiteboard is free to download, with in-app purchases available.
Is HDProEx free?
HDProEx is free to download, with in-app purchases available.
Do Explain Everything Whiteboard or HDProEx have ads?
Neither Explain Everything Whiteboard nor HDProEx shows ads.
Which is updated more often, Explain Everything Whiteboard or HDProEx?
Explain Everything Whiteboard ships an update fortnightly, and HDProEx monthly. Most recently, Explain Everything Whiteboard was updated on November 1, 2026 and HDProEx on October 25, 2026.

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