
Milanote
Miro
Freeform
Heptabase
PureRef
Scapple
Bulletin Infinite Canvas
Infinite canvas and moodboard maker that saves real files

OpenRouter
liteLLM
Portkey
APIPark
Eden AI
Helicone AI
Fireworks AI
A unified, OpenAI-compatible gateway to every major LLM provider. One endpoint, one key, one bill - with automatic routing and failover.

Which is more popular?
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | visualos.app | boldrouter.com |
| Pricing | ||
| Platforms | — | |
| Company | Startup from Germany · 1 - 9 employees · 2026 | Startup from Switzerland · 1 - 9 employees · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


visualOS is an infinite canvas for people who think visually: notes, Markdown documents, to-dos, images, PDFs, colour swatches and freehand drawing, with boards nested inside boards. It is local-first: every board is a real folder on your disk, documents are Markdown files, and sync runs through...
Point your existing OpenAI client at one endpoint and reach OpenAI, Anthropic, and more. Switch models by changing a single string - with automatic routing, failover, and one prepaid bill. Today the gateway routes 85 models across 23 providers behind a single endpoint. Full privacy - developed...
What each product offers, as listed by its team.


Walkthroughs and reviews on video.
visualOS - Free Infinite Canvas and Moodboard App
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing visualOS and boldrouter.
visualOS's answer
visualOS stores your work as real files. Connect a folder and every board on the canvas becomes a folder on your disk, every document a Markdown file and every image an ordinary image file. There is no server and no account, so your boards work offline, sync through your own iCloud Drive or Dropbox, and stay readable even if you stop using visualOS.
boldrouter's answer:
boldrouter is a Swiss-hosted unified LLM gateway that gives developers and businesses access to leading AI models through a single API key and an OpenAI-compatible interface. Its distinctive combination of multi-provider access, smart routing, automatic failover, centralized billing, token-accurate metering, scoped API keys, usage analytics, and enterprise controls allows teams to use multiple AI providers without rebuilding their applications for each one.
visualOS's answer
Choose visualOS if you work alone and want your boards to stay yours. Compared with Milanote, there is no 100-note limit and no subscription: the web app is free and complete, and the iPhone, iPad and Mac app is a one-time purchase. Compared with Miro or Apple Freeform, you get boards nested to any depth, stored as plain files, and the app works offline. If your team needs real-time collaboration, comments or share links, Milanote or Miro fit better.
boldrouter's answer:
boldrouter is designed for teams that want simplicity without being locked into a single AI provider. Developers can keep using familiar OpenAI-compatible SDKs while accessing models from OpenAI, Anthropic, Google, xAI, DeepSeek, Perplexity, Mistral, Z.ai, and others. Centralized routing, failover, usage tracking, billing, and API-key management reduce the infrastructure that teams otherwise need to build and maintain themselves. Its Swiss-hosted infrastructure is also particularly attractive to European and privacy-conscious organizations.
boldrouter's answer:
No major external customers have been publicly disclosed yet. boldrouter launched its public beta on July 21, 2026, so publicly announced customer references are still limited.
visualOS's answer
People who think visually and work on their own: designers, photographers, illustrators and artists who build moodboards and project boards, plus students, writers and researchers who organise ideas on a canvas. Users often come from Milanote, Apple Freeform or Kosmik and want an offline tool without a subscription.
boldrouter's answer:
boldrouter is primarily built for software developers, AI startups, SaaS companies, engineering teams, platform teams, and enterprises building applications with large language models. It is especially useful for organizations that use, test, or compare multiple AI providers and want one centralized API, billing system, routing layer, and usage dashboard instead of managing separate integrations for every provider.
visualOS's answer
The app is written in plain HTML, CSS and JavaScript, with no framework and no build step. The canvas is drawn with the Canvas 2D API and stays fast with thousands of elements. Data lives in IndexedDB or, through the File System Access API, in a folder the user chooses. The native iPhone, iPad and Mac app uses Capacitor plus Swift plugins built on UIKit, PencilKit (shape recognition) and Apple's Vision framework (handwriting search).
boldrouter's answer:
The platform incorporates multi-model routing, automatic failover, token metering, scoped API-key management, usage analytics, centralized billing, and Swiss-hosted cloud infrastructure. The underlying programming languages and internal framework stack have not been publicly disclosed.
visualOS's answer
We're Sarah Dorweiler and Gerald Reimertz, a husband-and-wife team from Nuremberg, Germany, who have been building things together for more than 20 years. As creatives we always organised our projects on visual canvas tools, but our files and ideas were tied to cloud services. We wanted the same visual overview for the files on our own devices: offline and private. That became visualOS, launched in 2026. We build it as a two-person team.
boldrouter's answer:
boldrouter was created by Swiss technology group Cybrient Technologies SA to simplify the increasingly fragmented LLM ecosystem. As companies began using models from multiple AI providers, managing separate APIs, credentials, billing systems, monitoring, and failover logic became increasingly complex. boldrouter was built as a unified layer between applications and AI providers, allowing developers to integrate once and then choose or switch between models as their requirements evolve. The platform officially launched its public beta on July 21, 2026 in Zürich, Switzerland.
Share your experience with using visualOS and boldrouter. For example, how are they different and which one is better?
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