ReplyAI is an AI email writer delivered as a browser extension for Gmail and Outlook. It advertises GPT-4 access inside those clients so users can compose faster replies in multiple languages and tones.
Resolution Builder is a Base44 campaign micro-app that turns a New Year resolution into a tailored app-building prompt. Visitors describe a 2026 goal and receive a ready-to-use prompt for the exact helper app they want to create on Base44.
Resoomer is a free cognitive studio for summarizing and mastering documents without an account. It supports multilingual processing with no advertised character limit on the public homepage.
ResourceSpace is an open-source digital asset management platform for storing, tagging, searching, and sharing media with workflow, permissions, reporting, and AI-assisted metadata tools. The vendor also sells managed cloud hosting and support packages tailored to museums, charities, brands, and public-sector teams.
Respondable is a Boomerang for Gmail assistant that scores emails in real time and suggests improvements for better responses. It analyzes tone and structure using models trained on millions of messages while you compose.
Ressl provides AI teammates that carry work forward across messages, email, CRM records, and tickets without forcing teams to re-enter context. The teammate understands requests, plans next steps, acts in existing tools, and pulls people in for review when exceptions arise.
RetroTeam is an online retrospective board for agile teams with generative AI insights, actions, and groupings. Teams create boards, invite members, and run structured retros with limits tied to plan tier.
Revdoku gives AI agents dedicated email inboxes with cloud storage, attachment handling, and REST, CLI, or MCP access. Teams provision mailboxes, connect AI workflows, and manage files generated by agents or APIs under EU hosting options.
RightFeature is a customer feedback board that helps product teams collect requests, prioritize what to build, and connect insights to a roadmap. The site markets boards for scattered Slack and email feedback, AI-assisted prioritization, and guest posting so teams can ship features users actually want.
Rio (RioGPT) is a ChatGPT-powered email assistant for Gmail that summarizes messages and documents, drafts replies, and supports AI search inside email. The public site promotes installing the Rio email app with instant summaries and AI writing.
River is an AI desktop for project work where teams collaborate with AI across documents, notes, sheets, slides, files, and browser connections. It combines native workspace apps with model access and usage-based AI credits instead of chat-only interfaces.
Roame is an award flight and hotel search product for travelers using points and miles, with SkyView search, alerts, and membership tiers for deeper availability windows. The homepage promotes saving on premium cabin awards and tracking points in an award wallet.
Roma is a to-do and project workspace where users describe work in natural language and Roma executes tasks, automations, and project updates for review. It offers early access signup and an MCP server so external AI clients such as ChatGPT and Claude can connect to the same task graph.
Rosey, from InSummary, provides AI quality assurance for important documents in regulated and high-stakes workflows. The public getrosey.com site positions Rosey alongside InSummary's organizational clarity products for document review in the age of generative AI.
Roundcube is a browser-based open-source IMAP webmail client with MIME and HTML mail support, address books, threading, spell checking, and a plugin API. Administrators self-host Roundcube to give users an application-like mail UI over existing IMAP servers.
Rows AI adds spreadsheet-native AI that treats cells as prompts for formulas, charts, joins, and analysis. It targets teams that want a number-crunching copilot inside Rows with integrations and tiered AI task allowances.
Row Zero is a cloud spreadsheet built for big data workloads, connecting to warehouses such as Snowflake, Databricks, BigQuery, Postgres, and S3 while offering Excel-compatible functions, Python, pivot tools, and an AI spreadsheet agent. The company notes it has been acquired by Databricks.
RSS Filter is an open recommendation tool that learns from articles you read and filters noisy RSS feeds. Users upload an OPML export to generate filtered feed URLs backed by LLM embeddings and machine learning similarity scoring.
Rukovoditel is a free open-source project management and business application designer that lets teams model databases, forms, and access rules on their own PHP and MySQL server. Extensions add calendars, Gantt charts, kanban boards, and reporting without switching to a closed SaaS PM tool.
SaaS Prompts is a free library of 500+ curated ChatGPT prompt ideas tailored to SaaS growth tasks such as marketing, product, and operations. The site emphasizes open access without paywalls so founders can browse and copy prompts for their own products.
Saga AI embeds GPT-powered drafting, brainstorming, grammar fixes, and translation for 20+ languages inside Saga notes, docs, and tasks. Teams collaborate in workspaces with optional unlimited AI on paid Standard and Business plans.
Saima is an adaptive AI video speed controller that personalizes playback on YouTube, Coursera, and other platforms while offering skip silence, voice boost, and collaborative note-taking. Browser extensions and desktop apps target learners who want faster comprehension without manual speed tweaks.
Free
API unknown
Checked Oct 4, 2026
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