What Workspace Pro is
AlternativeTo lists Workspace Pro without a category. It is recorded as Paid, Proprietary. It ships on Google Chrome. The topics its entry raises are linked notes, offline use, local files and plugins.
That is our reading of the record. For AlternativeTo's own wording, see its page for Workspace Pro — the facts above were read on 2026-08-16.
| Price | Paid |
|---|---|
| Licence | Proprietary |
| Category | AlternativeTo does not say |
| Origin | AlternativeTo does not say |
| Platforms | Google Chrome |
What SumizAI is
A note-taking application built around a conversation with an AI model. You ask a question, the answer streams back, and the answers worth keeping become Markdown notes — filed into a vault that is a folder on your own disk.
A vault is a directory holding base.md, a generated table of contents up to six levels deep, and a notes/ folder with one .md file per note. Before a note is written it is checked against the ones already there, so the fourth note about the same idea gets merged instead of added. Links between notes are ordinary Markdown links to files that exist.
The model is never ours: you bring your own API key to one of seven providers — Anthropic, OpenAI, Gemini, Groq, OpenRouter, a local Ollama or your own server — and pay that provider directly. A question sends the table of contents plus at most five relevant notes within a 24,000-character budget, and the app shows you which five it used.
Side by side
| Side by side | SumizAI | Workspace Pro |
|---|---|---|
| Price | $1/month, one plan, 7-day trial without a card | Paid |
| Licence | Proprietary | Proprietary |
| Platforms | macOS, Windows, iOS, Android | Google Chrome |
| Category | Note-taking — AI chat into Markdown | AlternativeTo does not say |
| Where notes live | Standard .md files in a folder you choose | Its description mentions local or offline files |
| AI model | Seven providers, always on your own API key | Its description mentions AI |
| Origin | Poland, EU | AlternativeTo does not say |
Where they differ
- Both mention AI. The difference is whose key it runs on: SumizAI never resells inference — you connect one of seven providers (Anthropic, OpenAI, Gemini, Groq, OpenRouter, a local Ollama or your own server) with your own API key and pay that provider directly. Check what Workspace Pro does with the model bill before comparing prices.
- Workspace Pro is paid software. Compare the two numbers directly: SumizAI is one dollar a month, one plan, and your AI provider bills you separately for the model you chose.
- AlternativeTo's description of Workspace Pro does not mention Markdown, so check what format your notes end up in before you fill it up. SumizAI writes standard
.mdfiles to a folder you picked, and an unpaid account can still export all of them. - Workspace Pro is described in terms of linking notes together. SumizAI links them too, but deliberately without a syntax of its own: a link is an ordinary Markdown link,
[Title](file-name.md), and the model may only point at a file that actually exists. There are no wiki-style[[…]]links to lose on export. - Workspace Pro is extensible through plugins. SumizAI is not, and that is a genuine trade: you cannot bend it into something else, but there is also no plugin to keep working after the next release. What it does instead is fixed and small — a chat, a filing rule and a folder of Markdown.
- AlternativeTo lists no mobile version of Workspace Pro. SumizAI runs on macOS, Windows, iOS and Android.
Which one to pick
Reasons to pick Workspace Pro
- you want to extend it with plugins
Reasons to pick SumizAI
- the notes you want already exist inside conversations with an AI model
- you want the filing — title, chapter, duplicate check — to happen without you
- you want the result as plain
.mdfiles in a folder you picked - you would rather pay your AI provider directly than have a note app resell the model
Facts about Workspace Pro: AlternativeTo, read 2026-08-16. SumizAI is not affiliated with Workspace Pro, and the name is used only to identify the product being compared.
Taken from the AlternativeTo lists: Obsidian.