Reyn vs Sharper

Reyn and Sharper are both personal assistants tracked by AIDiveForge. Below is a side-by-side comparison of pricing, capabilities, platforms, and ownership — sourced from each tool's live website and verified before publishing.

Reyn

Reyn passively records screen activity and surfaces it through a Q&A interface — ask what you worked on yesterday, and it pulls an answer from your actual session history, not from a search index you remembered to populate. A morning email digest recaps open items and recent completions, so you're not reconstructing your week at standup. The workflow capture feature watches you complete a process once, then documents the steps — which is useful for handing off SOPs without writing them from scratch. The hard ceiling appears the moment you need this on Windows or in a team context: Reyn is Mac-only and the data model is per-device, not shared. Teams that need collaborative activity logging or cross-platform coverage will find no path forward here.

Sharper

The core loop: you upload documents or connect sources like Notion, Gmail, and Slack, and Sharper runs multi-step task chains — reading, searching, analyzing, and writing — against that private context. Every answer ships with a proof ledger: cited passages linked back to the specific document page that produced them. Scheduled operations let you automate recurring tasks, like a weekly digest or pipeline review, with the right sources pre-loaded. The tool has no API and no self-hosted option, so teams with data-residency requirements or the need to embed this into a larger system hit a wall. For anything that needs to run inside your own infrastructure, you are looking at a different architecture.

Attribute	Reyn	Sharper
Pricing	Paid	Paid
Price	$20/mo	$29/month
Free trial	No	No
Open source	No	No
Has API	No	No
Self-hosted option	No	No
Platforms	Mac	Web
Pros	On-device screen journaling means your screen contents — client work, code, internal docs — never transit a vendor's cloud, so you get AI-powered recall without the data exposure that cloud activity trackers carry. Live screen context at query time, not just historical indexing, so answers about 'what am I looking at right now' are grounded in the actual present state of your desktop rather than a stale snapshot. Workflow capture documents a process from a single live run-through, so you can hand off SOPs to a teammate without separately writing documentation after the fact. Morning email digest surfaces open items and recent completions automatically, so you're not reconstructing your week from memory at the start of each day. Multi-provider AI support, so you're not locked to one model vendor — if API costs or model quality shift, you switch providers without changing how your screen data is stored.	Document-grounded responses with passage-level citations, so you can trace every claim back to the exact page it came from — eliminating the guesswork that comes when a generic AI confidently contradicts your own briefing materials. Scheduled task automation with pre-loaded context, which means recurring work like weekly digests or pipeline reviews runs without manual setup each time — replacing the copy-paste ritual of feeding the same documents into a chat window again and again. Connected to the standard productivity stack (Gmail, Notion, Slack, Google Drive, Outlook, Calendar) out of the box, so answers can draw on live context from the tools your team already uses rather than stale uploads alone. Parallel tool calls during execution — the system reads private sources and searches the web simultaneously — which means a research brief can cross-reference your internal documents against fresh external context in a single run rather than requiring two separate queries. A visible execution chain shows which tools fired and in what order, so you can audit why an answer looks the way it does instead of treating the output as a black box.
Cons	Reyn is Mac-only with no Windows support or self-hosted option described anywhere on the vendor page — a user who splits their work across platforms loses the journal entirely for their non-Mac sessions, and there is no documented path to extend coverage. The data model is per-device and there is no API or shared workspace feature, which means workflow documentation captured by Reyn cannot be accessed by a teammate directly from the tool — teams expecting a shared activity log or collaborative SOP repository will need a separate system, at which point Reyn becomes a personal note-taking layer rather than a team workflow tool. AI inference routes through external model providers, so the local-first claim applies only to raw screen data — queries still require an outbound call to whichever AI provider you configure, which means teams operating in fully air-gapped environments cannot use Reyn as described.	No API access means outputs cannot be piped into other systems — if your team needs Sharper's results to trigger a CRM update, populate a database, or feed a downstream workflow, you are copying and pasting by hand. Teams with that requirement switch to platforms that expose an API or webhook surface. No self-hosted deployment option means all document processing happens on Sharper's infrastructure. Teams subject to data-residency rules, HIPAA, or enterprise security review that prohibits third-party cloud processing cannot use this tool in those contexts — and the vendor provides no path to change that. Integration depth stays at the productivity-app layer. There is no mention of database connectors, custom API endpoints, or code execution environments. Teams that need to pull from structured internal data sources beyond cloud storage and mail will find the context field limited, and at that point they are evaluating tools built for broader enterprise integration.

Bottom line

Reyn and Sharper are closely matched on pricing model, openness, and API availability — pick by feature set and platform support in the table above.

Frequently asked questions

What is the difference between Reyn and Sharper?

Reyn is Paid, while Sharper is Paid. Compare pricing, free trial, API, platforms, and pros/cons in the table above on AIDiveForge.

Is Reyn better than Sharper?

It depends on your workflow. Use the side-by-side attributes (pricing, open source, API, self-hosted, platforms) to decide. AIDiveForge does not rank a universal winner — we publish verified facts so you can choose.

Reyn vs Sharper: which should I pick?

Pick Reyn if its pricing model, openness, or platform fit matches your constraints; pick Sharper otherwise. Check free-trial availability on each listing if you want to test before committing.

Comparison data is sourced and verified by the AIDiveForge data pipeline. AIDiveForge is editorially independent.