Comparison

Instaboard vs Write on PDF

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

Head to head
About

Instaboard

This app combines a digital whiteboard, planner, and meeting space on an infinite canvas. Sketch ideas, manage tasks, and collaborate in real-time with built-in video calls. It's designed for visual planning, project management, and remote team collaboration.

Highlights
  • Infinite canvas for drawing and sketching
  • Structured cards with checklists and due dates
  • Kanban boards for task tracking
  • Calendar view for scheduling
  • Built-in video calls for live collaboration
  • Cross-device compatibility (iPad, iPhone, web)
Features
Read full description

Stop being the one who chases everyone. Instaboard is one shared board for the plan: what needs doing, who's doing it, and everything you need to know. Drop the link in the group chat and everyone sees the same plan, live. FOR ANYTHING YOU PLAN WITH OTHER PEOPLE • Trips: who books what, the day plan, and costs split by family • Weddings: vendors, the guest list, the day hour by hour, and the budget • Families: birthdays, holidays and school pickups • Shops and cafés: opening and closing checklists your staff tick off • Tutoring and teaching: write on the same worksheet as your student, live EVERYONE GRABS A JOB • Put names and due dates on cards, and tick them off when they're done • Everyone sees each change the moment it happens • Comment on a card instead of digging through the chat JOINING TAKES SECONDS • Share a link, a QR code or a 4-digit code • No download for them: the board opens in any phone or web browser DRAW AND TALK IT THROUGH • Sketch on an endless whiteboard with Apple Pencil or your finger • Drop in a PDF, a map or a worksheet and mark it up together • Start a video call right on the board and point with the laser ROOM FOR EVERY DETAIL • Any card opens into its own board, so big plans stay tidy • Lists, checklists, tags, calendar view, photos, files, links and places • Split costs and see who owes whom • Save links and photos from any app to Pile, and sort them later WORKS WHERE YOU ARE • Keeps working offline and syncs when you're back • iPhone, iPad and the web • Export a board as a PDF or an image EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy policy: https://instaboard.app/privacy

About

Write on PDF

This app offers a digital whiteboard experience with advanced drawing tools and PDF integration. It allows for freeform sketching, note-taking, and organization with unlimited notebooks and templates. Collaborate or work independently with enhanced security and automatic backups.

Highlights
  • Advanced drawing tools with 7 ink types
  • Add text boxes, photos, and paper styles
  • Over 200 templates
  • Unlimited notebooks and folders
  • PDF import and export
  • Apple Pencil and stylus support
  • Folder and app-wide passcodes
Features
Read full description

Whiteboard PDF is an intuitive and focused whiteboard app for iPhone and iPad users. It's ideal for everyone who loves to sketch ideas, teach, or work with whiteboards. It brings your creativity to life. Key Features: + Simple and Intuitive: Enjoy the natural feel of a traditional whiteboard, enhanced with digital functionality. + Advanced Drawing Tools: Utilize 7 distinctive ink tools - Marker, Pen, Pencil, Monoline, FountainPen, Watercolor, and Crayon, specially designed for iOS 17. + Add text boxes, photos and different paper styles. + Choose from 200 Templates: Access over 200 templates to jumpstart your creativity and productivity. + Unlimited Organization: Keep your work structured with limitless notebooks, folders, and subfolders. + Customizable Notebook Covers: Personalize each project with unique notebook cover designs. + Collaborate or Work Independently: Whether you're sharing your whiteboard with a team or working solo, the app caters to all needs. + Seamless PDF Integration: Effortlessly import and export all your whiteboads in PDF format. + Enhanced Security: Keep your projects safe with app-wide passcodes and individual passcodes for specific folders. + Reliable Automatic Backups: Trust in the automatic backup feature to protect your notes and notebooks. + Apple Pencil & Other Stylus Support: Experience precise control with the Apple Pencil, featuring pressure sensitivity and tilt recognition, alongside compatibility with other styluses. Whiteboard PDF transforms your device into an incredible whiteboard experience, perfect for all your creative, educational, or professional needs! Privacy Policy http://www.noteswriter.com/Kairoos_Privacy_Policy.html EULA https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Instaboard4 screens
Write on PDF4 screens

Verdict

The call

Instaboard and Write on PDF are too close to call on the numbers: across 9 compared parameters — price, rating, ratings volume and update cadence among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. Instaboard sells 4 in-app purchases, starting at $7.99 per month and Write on PDF sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Instaboard against 4.9 for Write on PDF. Both are backed by a comparable volume of ratings — 11 and 19 respectively.

UpkeepUpdate frequency

Instaboard ships an update every 2 weeks, Write on PDF every 10 days. Both last shipped on October 24, 2026.

ScorecardNo meaningful differences
Instaboard versus Write on PDF: the parameters behind the verdict, then further details
ParameterInstaboardWrite on PDF
PriceFreeFree
Rating5.0 (11 ratings) — better4.9 (19 ratings)
Positive reviews100.0% of reviews—
Number of ratings1119 — better
Update frequencyEvery 2 weeksEvery 10 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better16.4
Further details — not scored
Size175 MB260 MB
Age rating4+4+
DeveloperInstaboard Ltd.Kairoos Solutions SL

Customer experience

Instaboard

All ratings11 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews7 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Write on PDF

All ratings19 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

4 purchases

Instaboard

Subscriptions4
  • Instaboard Pro7 Days trial$7.991 Month
  • Instaboard Pro$7.991 Month
  • Instaboard Pro (12 months)7 Days trial$59.991 Year
Show 1 more
  • Instaboard Pro7 Days trial$59.991 Year
2 purchases

Write on PDF

Subscriptions1
  • Unlock All Features and AI3 Days trial$1.991 Month
One-time1
  • Full Pro Unlock$5.99

Questions

Is Instaboard free?
Instaboard is free to download, with in-app purchases available.
Is Write on PDF free?
Write on PDF is free to download, with in-app purchases available.
Which has better reviews, Instaboard or Write on PDF?
Instaboard is rated higher. Instaboard averages 5.0 out of 5 from 11 ratings, while Write on PDF averages 4.9 from 19 ratings.
Do Instaboard or Write on PDF have ads?
Neither Instaboard nor Write on PDF shows ads.
Which is updated more often, Instaboard or Write on PDF?
Instaboard ships an update every 2 weeks, and Write on PDF every 10 days. Most recently, Instaboard was updated on October 24, 2026 and Write on PDF on October 24, 2026.

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