STL Master vs SimplNote
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
STL Master
View and interact with 3D models in augmented reality. Share instant screenshots and screen recordings of your designs directly from the app.
- STL file viewing
- Augmented reality (AR) mode
- Instant screenshots
- Screen recording
- Design sharing
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This app also allows you to share instant screenshots and screen recording videos of your designs without using any other tools/apps.
SimplNote
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SimplNote is a notes app you actually want to scroll through. Notes are cards. Swipe through them like reels, double-tap to favourite, swipe left right to delete one. No folders. No tags. No clutter. Jot, list, share — that's it. • Quick status-style notes for one-line thoughts • Tick-off checklists that glide to the bottom as you go • Eight built-in fonts — handwriting, coding, display, serif • Eight one-tap colour themes for every mood • Favourite the ones worth keeping Made for friends, not feeds. • Pair with a friend by scanning their QR code or sending an invite • Share a note with one tap — they see it instantly in their own reel • Per-recipient avatars and shared favourites Built to feel fast. • Offline-first: every tap saves locally and syncs in the background • Smart 3-second debounce so a flurry of ticks becomes a single sync • Reanimated transitions everywhere — swipes, springs, smooth list reorders • Optimistic UI: no waiting for a server before you see the change Private by design. • Sign in with Google — we only keep your name, email, and avatar. • Note contents are encrypted. • No ads. No tracking. No third-party analytics. Designed to disappear. • Hand-drawn paper-cut sticker icons • Dark-first theme that's easy on the eyes • A first-time tutorial that gets out of the way fast If you've ever wished your notes felt less like a database and more like a feed of your own thoughts — this is for you.
Screenshots
Verdict
The clearest difference is device support: STL Master at 4 against SimplNote's 2. STL Master also leads on iOS requirement (14.1 vs 16.4). On price, ads and in-app purchases 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.
| Parameter | STL Master | SimplNote |
|---|---|---|
| Price | Free | Free |
| Rating | 4.2 (51 ratings) — better | — |
| Positive reviews | 86.1% of reviews | — |
| Number of ratings | 51 — better | — |
| Update frequency | Monthly | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad |
| Requires iOS | 14.1 — better | 16.4 |
| Further details — not scored | ||
| Size | 68 MB | 67 MB |
| Age rating | 4+ | 4+ |
| Developer | JA Logic Labs LLC | Sayak Sarkar |
Bugs and requests
STL Master
Reported bugs
13 issues- App crashes immediately on launch
- Files won't open or load
- Objects disappear when moved
- Inconsistent file orientation on load
- Markup mode traps user and requires app restart
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- Buttons don't toggle/close properly
- Measurement dimensions display as mirror images
- HDRI background doesn't affect model lighting
- Freezing in editing/pen tip mode
- Objects zoomed in with no zoom out capability
- Parts of model cut off or not displayed
- Mac version has significant stability issues
- iOS 10.2 compatibility crash
Requested features
13 requests- More color and material options
- Unit measurement display and metric/standard conversion
- How-to video tutorials for hidden features
- Proper zoom in/out controls
- Object positioning/movement button
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- Measurement and dimension tools
- Drag-and-drop file opening support
- Menu items for file operations
- Closeable menu buttons
- More file format support
- HDRI lighting affecting model rendering
- Save functionality for combined files
- Proper markup mode functionality
SimplNote
Not enough reviews yet to summarise bugs or requests.
In-app purchases
STL Master
No in-app purchases
SimplNote
No in-app purchases









