Free
Added on Nov 14,2026
Underdog is a private personal AI assistant that runs on your own computer. It handles email, calendar, meeting notes, dictation and errands, and its summaries, drafts and answers come from AI models running locally rather than in the cloud.
The app is available for Apple devices, with Windows, Linux and Android listed as coming soon. It is currently an invite-only beta.
Key features include a unified inbox for multiple email accounts, calendar management, meeting notes, voice dictation, newsletter unsubscribing, and an AI chat with skills for tasks such as scheduling appointments or handling errands.
Underdog uses its own family of local models: Poodle 4B (the fast one), Saluki 27B (the smart one) and Chihuahua 2B (a light model for phones). The team has also released Bark, a small speech model used for dictation.
Privacy is central to the product. Mail syncs directly between your computer and your email provider, saved memories stay on your device and can be viewed, edited or deleted, remote images, scripts and tracking pixels are stripped, each account gets its own vault with a locally stored key, and a Naval mode stops the app from ever calling home. The site lists completed security assessments and penetration tests.
Pricing: Underdog is free. Because the AI runs on your computer, there are no servers or seats to pay for. The company says it earns a small share when you ask Underdog to buy something and it pays with a one-time card created for that order.
It is suited to privacy-conscious professionals who want an AI helper for email, scheduling, notes and dictation without sending their data to a cloud AI service.
Popular alternatives to Underdog include Voilà, Hiding AI and Loopa. Compare their pricing and what each is best for below.
| Tool | Pricing | Best for |
|---|---|---|
| Voilà | Freemium | Professionals who read and write a lot online and want an AI assistant for email, summaries and rewrites inside the brow... |
| Hiding AI | Free Trial | Job seekers and remote workers who want discreet AI notes, transcripts and answers on their desktop during video calls. |
| Loopa | Freemium | Busy professionals and founders who want to hand everyday tasks to AI agents from one place. |
| SaveDay | Freemium | Researchers, students and heavy readers who save lots of articles and videos and want to find them later by describing w... |
| Flowith | Freemium | Creators and knowledge workers who prefer a visual canvas over a linear chat for working with several AI models. |
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