SumizAI vs jott.ing

What jott.ing is

jott.ing is a private, offline-first notepad with free AI features — all content stays local on the device, with no cloud and no risk of data being shared with third parties. Installing it as a PWA (Progressive Web App) takes a few seconds and gives a near-native app experience on any device with a browser, without going through an app store.

The key difference from most ai notes tools backed by AI is that the model runs locally on the user's device rather than in a vendor's cloud — meaning features like auto-tagging or summarizing long notes work even with no internet connection, a rarity in this tool category, where most competitors require a constant connection for server-side AI processing.

The business model — completely free, with no hidden fees and no premium plan unlocking advanced features — is unusual for tools with an AI layer, where compute costs usually force some form of monetization. Local AI processing instead of costly API calls to major model providers explains how the creators can afford a fully free, ad-free model.

The feature that generates ideas or prompts based on existing notes is useful creative support — someone writing a personal journal or planning a trip gets suggestions grounded in what they've already written, instead of starting from a blank page every time they lack inspiration to continue an entry.

The use cases listed by the creators — personal journaling, student note-taking, travel planning, creative writing — show that jott.ing targets a broad segment of individual users who value the privacy of their ai notes over the multi-device sync convenience offered by competing cloud-based AI notepads.

Compared to Obsidian or Joplin, which also offer local-first work, jott.ing is functionally much simpler — no plugins, no link graph, no elaborate manual tagging system — but in exchange it's instantly available as a PWA, with no desktop app to install and configure from scratch.

The limitation of the local model is, by definition, no cross-device sync — notes written on a phone won't automatically show up on a computer, which can be a real hindrance for people working across multiple devices compared to cloud solutions offering seamless switching between them.

For people to whom the privacy of ai notes content is the overriding priority — someone writing a very personal journal, therapy notes for themselves, or sensitive financial plans — jott.ing offers a rare combination of AI features with the guarantee that no content ever leaves the device.

It's worth adding that local AI processing on weaker devices (older phones, cheap laptops) can run slower than cloud equivalents using server-side GPUs — a typical trade-off for on-device models: privacy in exchange for potentially lower performance on resource-limited hardware, worth checking before fully relying on jott.ing as a primary ai notes tool.

No account also means no way to recover access if a device is lost — with no cloud backup, a lost or damaged phone can mean permanently losing an entire these notes archive. People relying on jott.ing as the sole place to store important jottings should consider their own manual export and backup in case of hardware failure.

In short, jott.ing is a niche but thoughtfully built AI notepad for people prioritizing privacy and offline work over cross-platform sync — a solid, fully free alternative to cloud-based AI notepads, at the cost of multi-device features.

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.

Every answer kept this way becomes one of these ai notes, ready to search again months later without hunting back through old chats.

Side by side

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 jott.ing does with the model bill before comparing prices.
• jott.ing is free and SumizAI costs a dollar a month after a seven-day trial that takes no card. A dollar is what it costs to run accounts and licences without reselling the model; if free is the requirement, jott.ing wins that row outright.
• AlternativeTo's description of jott.ing does not mention Markdown, so check what format your notes end up in before you fill it up. SumizAI writes standard .md files to a folder you picked, and an unpaid account can still export all of them.
• jott.ing runs in the browser. SumizAI is a desktop and mobile application, and on the desktop the vault is a folder on your own disk rather than a document in someone's cloud.

Which one to pick