Cool useful app
I like how it uses local AI. I hope that more apps will like this.

This tool uses AI to help you brainstorm website names and instantly checks domain availability across numerous top-level domains. It also searches for social media handles and alerts you if a desired domain becomes available.
1.4
October 30, 2026
- Word form filters: Automatically hide certain word forms, like plurals (foxes, moons) or past tense (ghosted, frosted). Set filters globally or per brainstorm. - Smarter suggestions: Filler words like “the,” “more,” and “him” no longer appear in suggestions, so results are more interesting. You can still add them manually. - Better premium domain detection: Some domains are marked “premium” by registrars and cost more than the standard price, often without saying so until checkout. NameTheory now catches more of these up front.
MoreNameTheory is a free domain name search tool that uses AI to help you brainstorm name ideas and instantly checks the availability of web domains and social media handles for those names.
No, NameTheory does not contain advertisements. It is a free application that runs on-device AI and stores your data locally or via iCloud.
NameTheory is currently supported on iPhone devices.
NameTheory uses AI to generate name variations based on your starter words and searches for their availability across hundreds of top-level domains, including .com, .app, and .ai.
Yes, NameTheory searches for available handles on platforms like Instagram, TikTok, X/Twitter, Reddit, and GitHub, in addition to domain name availability.
NameTheory has an age rating of 12+, making it suitable for a wide range of users.
The latest version, 1.4, was released on October 30, 2026, indicating regular updates to improve functionality and features.
No, there is no AI subscription required for NameTheory. All AI processing runs on your device, ensuring your data remains private.