Comparison

Bezelbub vs CanvasPrism

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

Head to head
About

Bezelbub

This app automatically frames your screenshots and screen recordings within realistic device bezels. It supports a wide range of Apple devices and offers seamless integration with your workflow, running entirely on-device for privacy.

Highlights
  • Automatic device matching
  • 38+ Apple device models
  • Video framing and audio preservation
  • Share Extension for easy integration
  • Pixel-perfect output
  • Native cross-platform experience
  • On-device processing
Read full description

Bezelbub wraps your screenshots and screen recordings in real device bezels, matched automatically to whatever you drop in. Built for developers, designers, product managers, indie makers, and anyone who needs to show their work framed in a real device. AUTOMATIC DEVICE MATCHING Drop in a screenshot or screen recording and Bezelbub detects the resolution, picks the right device model, and selects portrait or landscape. No picker, no calibration, no guesswork. 38+ DEVICE MODELS, EVERY COLOR Complete coverage of modern Apple hardware — iPhone 14 through iPhone 17, iPhone Air, iPad, iPad (A16), iPad mini, iPad mini (A17 Pro), iPad Air M2/M4 in 11" and 13", iPad Pro M4/M5 in 11" and 13", MacBook Air, MacBook Pro, MacBook Neo, iMac 24", and Apple TV 4K — each in every color Apple ships. VIDEO FRAMING, NOT JUST STILLS Wrap full screen recordings in device art. MOV, MP4, and M4V. Audio preserved. Rotation, background color selection, and custom export sizing built in. On iOS, a resolution picker with a quality indicator lets you choose the right size for Slack, Twitter/X, or a marketing site. FRAME FROM ANY APP ON iOS The Share Extension means you can frame a screenshot straight from Photos, Safari, Mail, or any app that can share an image. The bezel lands on your clipboard, ready to paste into Slack, Notion, Keynote, or email. PIXEL-PERFECT OUT OF THE BOX A custom screen-region detection pipeline analyzes every bezel image and builds anti-aliased masks at build time. No visible seams at the rounded corners, no halos, no manual tweaking. NATIVE ON EVERY PLATFORM Built with SwiftUI and AVFoundation. Native on Mac, iPhone, and iPad — no wrappers, no web views. Drag-and-drop on Mac, PhotosPicker on iOS, and platform-appropriate share, copy, and export flows on each. ACCESSIBILITY VoiceOver labels across the editor, export controls, and Share Extension. PRIVACY-RESPECTING Everything runs on-device. No accounts, no uploads, no telemetry, no tracking. Universal Purchase — use on Mac, iPhone, and iPad.

About

CanvasPrism

A private, offline whiteboard app for drawing, sketching, and creating diagrams. It offers an infinite canvas, shape libraries, and Apple Pencil support, with options for iCloud sync. Your creations are stored securely on your device.

Highlights
  • Infinite canvas for freehand sketching
  • Smart shape connectors for diagrams
  • Component libraries and templates
  • Apple Pencil support with gestures
  • Customizable themes and backgrounds
  • Export to PNG, PDF, SVG
  • Optional iCloud sync
Features
Read full description

CanvasPrism is a fully offline, private whiteboard for iPhone and iPad. Everything you create is stored right on your device. There's no account, no sign-up, and no internet connection required to draw, sketch, or edit. Your ideas stay yours. Open a blank board and start working in seconds. • Infinite canvas for freehand sketching with shapes, arrows, lines, and text • Build flowcharts, mind maps, and wireframes using smart shape connectors • Ready-made component libraries and templates to start fast • Apple Pencil support on iPad with native double-tap and squeeze gestures for a natural, hand-drawn feel • Customize with 100+ bundled fonts, color themes, and background styles • Set dark or light appearance per board for full control over every canvas • Export to PNG, PDF, or SVG with an optional transparent background • Open and import .excalidraw and .excalidrawlib files • Share your work straight to Photos or Files Want your boards on every device? Turn on optional iCloud sync to keep your iPhone and iPad in step. Sync is conflict-safe: if a board is edited in two places at once, CanvasPrism keeps an automatic copy so nothing is ever lost. Leave it off and CanvasPrism stays completely offline and on-device. CanvasPrism is built on the open-source Excalidraw engine, running natively in the app for a fast, responsive drawing experience. CanvasPrism is is completely free with no ads, no tracking and no account. Just a clean, capable whiteboard that's ready whenever inspiration strikes. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Bezelbub4 screens
CanvasPrism4 screens

Verdict

The call

The clearest difference is update cadence: CanvasPrism at daily against Bezelbub's every 2 months. CanvasPrism also leads on ratings volume (4 vs 1). Bezelbub's advantage is iOS requirement (17.0 vs 26.2). On price, rating, review sentiment and ads 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Bezelbub against 5.0 for CanvasPrism. Both are backed by a comparable volume of ratings — 1 and 4 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Bezelbub ships an update every 2 months, CanvasPrism daily. The most recent releases landed on October 7, 2026 and October 16, 2026 respectively.

Scorecard3 real differences · 7 level
Bezelbub versus CanvasPrism: the parameters behind the verdict, then further details
ParameterBezelbubCanvasPrism
PriceFreeFree
Rating5.0 (1 ratings)5.0 (4 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings14 — better
Update frequencyEvery 2 monthsDaily — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS17.0 — better26.2
Further details — not scored
Size386 MB195 MB
Age rating4+4+
DeveloperDGR LabsLife Utility Apps, LLC

Customer experience

Bezelbub

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

CanvasPrism

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Bezelbub

No in-app purchases

None

CanvasPrism

No in-app purchases

Questions

Is Bezelbub free?
Bezelbub is free to download, with no in-app purchases.
Is CanvasPrism free?
CanvasPrism is free to download, with no in-app purchases.
Which has better reviews, Bezelbub or CanvasPrism?
Bezelbub and CanvasPrism are both rated 5.0 out of 5 on the App Store, from 1 and 4 ratings respectively.
Do Bezelbub or CanvasPrism have ads?
Neither Bezelbub nor CanvasPrism shows ads.
Which is updated more often, Bezelbub or CanvasPrism?
Bezelbub ships an update every 2 months, and CanvasPrism daily. Most recently, Bezelbub was updated on October 7, 2026 and CanvasPrism on October 16, 2026.

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