Sketudio vs Letterproof
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sketudio
Create animated comics and stories with drawings, motion, sound, and voice. Build branching narratives and share them as single files playable in any web browser, no app required for viewers. Works offline and is private by design.
- Sketch with pen and color tools
- Add motion, sound effects, and voice
- Create branching, choose-your-own-adventure comics
- Export as single, shareable web browser files
- Works fully offline
- No ads or tracking
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Sketudio is where your drawings start to move. Sketch a scene, bring it to life with motion and sound, add speech bubbles and your own voice, then share the whole story as a single file that plays in any web browser — no app required on the other end. Sketudio is a draw-first storytelling studio. You build your story one frame at a time, exactly the way you imagine it, and Sketudio turns those frames into a cinematic comic you can play and share. DRAW EVERY SCENE YOUR WAY - Sketch with pen and color tools, pick your frame shape (square, wide, or tall) - Drop in photos from your library as backgrounds - Cut out the subject from any photo you import — the background is removed on your device - Add captions and text labels with built-in text tools - Start in Simple mode, or switch to Advanced for canvas zoom, layered photos, and on-canvas text BRING IT TO LIFE WITH MAGIC - Add cinematic motion — zoom, pan, and playful spins - Layer in sound effects and screen flashes - Add speech, thought, shout, and narration bubbles - Record your own voice, or generate on-device English speech for any bubble MAKE IT INTERACTIVE - Turn a frame into a choice — show two buttons and let your reader pick which frame to jump to - Mark a frame as an ending so every branch of your story can finish its own way - Build branching, choose-your-own-adventure comics that play right in a browser PLAY IT TWO WAYS - Animated Comic: scene-by-scene autoplay with motion, flashes, sound, and bubble reveals - Comic: a vertical-scroll page where every scene is visible at once SHARE WITH ANYONE - Export to a single self-contained file that keeps your motion, timing, audio, and bubbles in one shareable story - The person you send it to just opens it in any browser. No account, no app, no sign-up - Keep every export in your Exports Library to replay, re-share, or reopen later - Back up or move a whole project as a single file — export it to JSON and re-import to pick up right where you left off PRIVATE BY DESIGN - Your comics, drawings, photos, and voice clips stay on your device - Works fully offline — create anywhere, no internet needed - No accounts, no ads, no tracking Whether you're sketching a quick gag strip or directing a multi-scene animated comic, Sketudio gives you the studio — you bring the story. Start with the built-in "How to Use Sketudio" walkthrough and make your first comic right away.
Letterproof
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Letterproof grades the type around you. Point the camera at a menu, sign, slide deck, print proof, worksheet, UI mockup, or screen. Letterproof finds each visible line of text and rates it against WCAG 2.2 accessibility contrast thresholds. Each reading shows: - AAA, AA, or FAIL verdict - Exact contrast ratio, such as 4.51:1 - Sampled text and background colors - Estimated text size - A color-coded overlay on the source image - A practical contrast fix when a region falls below AA Letterproof is useful for designers checking a proof, teachers or parents reviewing low-vision readability, content teams reviewing signage or brochures, and anyone curious whether text in the real world is actually readable. Built privacy-first: - Vision text recognition runs on your iPhone or iPad - WCAG math runs on your iPhone or iPad - Photos and camera frames are not uploaded by the app - No account, sign-in, ads, tracking, analytics, or subscription - Audit history is saved locally on your device WCAG thresholds checked: - AA: 4.5:1 for normal text, 3:1 for large text - AAA: 7:1 for normal text, 4.5:1 for large text - Large text is treated as approximately 18 pt or larger Settings let you review results against an AA or AAA target. One-time purchase, no subscription.
Screenshots
Verdict
The clearest difference is price: Sketudio at Free against Letterproof's $2.99. Sketudio also leads on iOS requirement (15.0 vs 17.0). Letterproof's advantage is update cadence (every 3 days vs every 2 months). On 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
Sketudio is free to download; Letterproof costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Sketudio ships an update every 2 months, Letterproof every 3 days. The most recent releases landed on September 18, 2026 and September 11, 2026 respectively.
| Parameter | Sketudio | Letterproof |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 4.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 2 months | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 134 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Jun Park | Robert Corbin |
In-app purchases
Sketudio
No in-app purchases
Letterproof
No in-app purchases









