ntfy vs OpenShape3D
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ntfy
This app allows you to send push notifications to your phone from scripts or other applications using simple HTTP requests. It acts as a client for a free, open-source pub-sub service, enabling you to receive alerts and updates directly on your device.
- Send notifications via REST API
- Subscribe to topics
- Publish messages via HTTP
- Integrates with Bash/PowerShell
- Free and open source client
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Send push notifications to your phone from any Bash or PowerShell script, or from your own app using PUT/POST requests, e.g. via curl on Linux or Invoke-WebRequest. ntfy is a client for https://ntfy.sh, a free and open source HTTP-based pub-sub service. You can subscribe to topics in this app, and then publish messages via a simple HTTP API. Uses: * Notify yourself when a long-running process is done * Ping your phone when a backup has failed * Alerts when someone logs into your server Example: $ curl -d "Your backup is done" ntfy.sh/mytopic Find more examples and usage instructions here: https://ntfy.sh/docs
OpenShape3D
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openshape3d is a direct-modeling CAD app built for touch. Sketch a profile, pull it into a solid, and keep cutting, blending and patterning until the part is done — no desktop, no subscription server, no file conversion dance. Geometry is computed by OpenCASCADE, the same open-source B-rep kernel used in professional CAD. Extrudes, primitives and booleans produce exact analytic surfaces, so a cylinder stays a true cylinder instead of a faceted approximation. SKETCHING • Sketch on a world plane, on any flat body face, or on an offset construction plane pulled off a face • Line, rectangle, circle, arc, ellipse, polygon and text-as-outline tools • Endpoint, midpoint, centre, vertex and grid snapping — draw with Apple Pencil • Trim, move/rotate gizmo, construction geometry, and reusable symbols • A full 2D constraint solver: coincident, parallel, perpendicular, tangent, equal, concentric, symmetric and more • Driving dimensions with inline arithmetic (type 25.4/2) pull geometry to value • The sketch tells you where it stands — fully defined, or how many degrees of freedom remain SOLIDS • Extrude a profile, or push and pull a face directly with automatic booleans: pull to add material, push to cut • Revolve, sweep along a chained path, loft through sections, and helix • Fillet and chamfer edges with live preview and drag-to-size • Shell a body hollow, with optional open faces • Union, subtract and intersect between bodies, computed off the main thread • Split a body with a plane or a sketch profile • Linear and circular patterns with ghost previews • Move, scale, rotate, mirror, translate point-to-point and align VIEWING • Orientation cube, six standard views, isometric and orthographic toggle • One finger orbits, two pan, pinch zooms — the camera never locks up • Section view that clips live against a plane, with a drag arrow and flip • Shaded, shaded without edges, wireframe with proper hidden-line removal, and X-ray • Marquee select with window/crossing semantics, and Select Through to reach a body buried behind others • Isolate to hide everything but the selection MATERIALS AND REFERENCE • Material presets — steel, aluminium, brass, plastics, rubber, wood — plus custom colour with metallic and roughness • Drop PNG or JPEG reference images onto any plane and trace over them MEASURE • Face area, body volume and bounding box on selection • Two-point distance with X, Y and Z deltas over snap points IMPORT AND EXPORT • Import STL and DXF • Export STL, OBJ, 3MF, GLB, USDZ and sketch DXF • Preview your model in AR with Quick Look
Screenshots
Verdict
The clearest difference is update cadence: ntfy at fortnightly against OpenShape3D's every 5 weeks. ntfy also leads on iOS requirement (15.0 vs 17.0). 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.
ntfy ships an update fortnightly, OpenShape3D every 5 weeks. The most recent releases landed on September 30, 2026 and September 15, 2026 respectively.
| Parameter | ntfy | OpenShape3D |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (442 ratings) — better | — |
| Positive reviews | 78.7% of reviews | — |
| Number of ratings | 442 — better | — |
| Update frequency | Fortnightly — better | Every 5 weeks |
| 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 | 3 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Philipp Heckel | Laan Labs |
Bugs and requests
ntfy
Reported bugs
3 issues- Notifications not working on iOS
- Broken click URLs in notifications
- Compatibility issues with iOS notification summarizing
Requested features
5 requests- Ability to change notification sounds
- Support for Apple Watch
- Customizable topic names/aliases
- Improved iOS notification handling
- All topics view and read/unread indicators
OpenShape3D
Not enough reviews yet to summarise bugs or requests.
In-app purchases
ntfy
No in-app purchases
OpenShape3D
No in-app purchases









