Noticky's answer

Noticky is the only sticky note app on macOS that stays visible above fullscreen apps. It's a native Swift/SwiftUI menu bar app (not Electron), launches instantly with ⌘⇧N, and uses the right macOS window level to overlay everything — coding sessions, video calls, presentations. macOS 15 Sequoia and later only, built specifically for the latest Apple APIs.

Spatius's answer:

Spatius combines photorealistic 3D Gaussian Splatting avatars with a cloud-edge rendering architecture built specifically for real-time AI interaction. Instead of rendering every frame on cloud GPUs and streaming it as video, Spatius sends lightweight motion data to the user’s device, where the avatar is rendered locally.

This approach addresses visual quality, network reliability, device coverage, and operating cost at the same time. It allows digital humans to remain responsive during long conversations, work across web, mobile, and intelligent hardware, and scale to high-concurrency production environments.

Noticky's answer

Apple Stickies disappears in fullscreen and hasn't been updated in years. SideNotes uses a sidebar drawer that hides itself. Tot is great for jot-and-toss but vanishes in fullscreen too. Noticky is the only one that stays on screen no matter what you're doing — even above a fullscreen Xcode, Premiere Pro, or Zoom call. $6.99 one-time on the Mac App Store, no subscription, every future update included.

Spatius's answer:

Spatius combines photorealistic 3D Gaussian Splatting avatars with a cloud-edge rendering architecture built specifically for real-time AI interaction. Instead of rendering every frame on cloud GPUs and streaming it as video, Spatius sends lightweight motion data to the user’s device, where the avatar is rendered locally.

This approach addresses visual quality, network reliability, device coverage, and operating cost at the same time. It allows digital humans to remain responsive during long conversations, work across web, mobile, and intelligent hardware, and scale to high-concurrency production environments.

Noticky's answer

macOS power users who spend their day in fullscreen apps: developers, writers, designers, video editors, students taking lecture notes, and people in back-to-back video calls. Anyone who needs a piece of information — a checklist, a script, a snippet, a meeting agenda — to stay one glance away while they work in another app. Not for long-form note-taking. For keeping critical info visible.

Spatius's answer:

Spatius is built for companies and developers creating AI products that benefit from natural, face-to-face interaction. Its primary users include teams working in AI education, recruiting and interviews, customer service, smart terminals, digital assistants, intelligent devices, and AI companion products.

It is especially well suited to organizations that require long-duration conversations, high concurrency, cross-platform deployment, custom-branded characters, or reliable operation on constrained networks and hardware.

Noticky's answer

Built solo by Leonidas, a Belgian indie developer, because every sticky note app on macOS disappears the moment you go fullscreen. He needed his standup checklist to stay visible during fullscreen Xcode sessions, and Apple Stickies couldn't do it. macOS treats fullscreen as a separate Space — most third-party tools fail there. Noticky uses a specific window level to overlay everything, even fullscreen. Launched on Product Hunt in May 2026, then approved on the Mac App Store. Sold direct via Stripe in the EU and via the Mac App Store everywhere else.

Spatius's answer:

Spatius was created to close the gap between digital human demonstrations and real-world deployment. Many avatar technologies can produce an impressive short demo, but become difficult or expensive to operate when conversations last longer, user numbers grow, or products must run across diverse devices and network environments.

The Spatius team developed its own cloud-edge 3DGS technology to solve these production challenges together. Today, Spatius helps companies turn AI into a more natural and expressive presence, bringing real-time digital humans into education, recruiting, smart devices, customer-facing terminals, and companion applications.

Noticky's answer

Swift 6 and SwiftUI for the UI, AppKit for window-level management (the trick that makes fullscreen overlay work), Core Data with CloudKit for iCloud Sync across Macs, Foundation Models framework for on-device smart tagging, LocalAuthentication for Touch ID lock. Zero third-party dependencies, no Electron, no telemetry. Requires macOS 15 Sequoia minimum.

Spatius's answer:

Spatius is primarily built on proprietary 3D Gaussian Splatting technology and a cloud-edge rendering architecture.

Its cloud-based Motion Server converts generated speech into lightweight facial and motion data, while the AvatarKit SDK renders and animates the 3DGS character locally on the client device. Platform technologies include WebGL and WebGPU for web applications, Metal for iOS, and Vulkan for Android. Spatius can receive real-time audio through technologies such as WebSocket, WebRTC, LiveKit, and Agora, and can integrate with third-party ASR, LLM, and TTS providers.

Noticky's answer

• Independent macOS developers working in fullscreen IDEs (Xcode, Cursor, VS Code)
• Solo founders and indie hackers tracking daily metrics
• Writers and researchers using fullscreen text editors (iA Writer, Ulysses, Scrivener)
• Students taking notes during fullscreen lectures and video courses
• Designers working in fullscreen Figma, Sketch, or Affinity
• Power users running macOS 15 Sequoia and macOS 26 Tahoe

Spatius's answer:

TAL Education is one of Spatius’s leading customers. Spatius also works with established companies across education, recruiting, smart devices, and AI companion products.

Products powered by Spatius have reached millions of end users and supported tens of millions of digital human conversations, demonstrating the platform’s ability to operate in long-term, large-scale production environments.