Image Smith vs CanvasPrism
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Image Smith
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Image Smith is a professional image utility designed with privacy at its core. Unlike cloud-based tools, all processing happens entirely on your device — your images never leave it. Powered by ImageCore — a native C/C++ engine, not a slow JavaScript bridge. No subscriptions. No ads. No servers. KEY FEATURES: Format Conversion: Convert between JPEG, PNG, WebP, HEIC, TIFF, and BMP. Crop & Rotate: Rectangular crop, rotate 90/180/270, flip horizontal or vertical. Lossless rotation for JPEGs — zero quality loss. Resize & Compress: Scale images to exact dimensions. Re-encode at custom quality to reduce file size. EXIF Metadata: View camera info, GPS coordinates, timestamps. Strip all metadata with one tap. Offline & Private: No internet required. No uploads. Fully open-source.
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.
- 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
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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
Verdict
The clearest difference is update cadence: CanvasPrism at daily against Image Smith's every 2 weeks. Image Smith's advantage is iOS requirement (15.1 vs 26.2). On price, ads, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Image Smith ships an update every 2 weeks, CanvasPrism daily. The most recent releases landed on October 4, 2026 and September 30, 2026 respectively.
| Parameter | Image Smith | CanvasPrism |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (4 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 4 — better |
| Update frequency | Every 2 weeks | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 26.2 |
| Further details — not scored | ||
| Size | 37 MB | 195 MB |
| Age rating | 4+ | 4+ |
| Developer | Om Bhardwaj | Life Utility Apps, LLC |
In-app purchases
Image Smith
No in-app purchases
CanvasPrism
No in-app purchases









