
Offers industry-leading conversational voice capabilities and broad reasoning, though it lacks specialized roleplay games.
Offers industry-leading conversational voice capabilities and broad reasoning, though it lacks specialized roleplay games.
CustomGPT OS records 18,928,488 monthly visits with +5.9% month-over-month growth and Paid pricing. Roxy - AI Voice Companion records 27,212,532 monthly visits with -6.4% growth and Freemium pricing.

A Notion-based operating system for building, organizing and monetizing Custom GPTs
| Dimension / Metric | ![]() | ![]() |
|---|---|---|
| Official Domain | gumroad.com | itunes.apple.com |
| Pricing Model | Paid | Freemium |
| Monthly Visits | 18.93M (18,928,488) | 27.21M (27,212,532) |
| MoM Traffic Delta | +1.06M (+5.9%) | -1.87M (-6.4%) |
| Primary Market & Share | 🇺🇸 United States (30.9%) | 🇺🇸 United States (35.2%) |
| Direct Visits / mo | 8.17M | 9.07M |
| User Rating | 3.8 | 4.1 |
| Supported Platforms | Website | App |

A Notion-based operating system for building, organizing and monetizing Custom GPTs
Keeps tutorials, use cases and templates organized so you can reuse your best resources instead of starting from scratch every time.
A dedicated space to generate, capture and revisit Custom GPT ideas so promising concepts never get lost in scattered notes.
A structured build pipeline plus version tracking so you can iterate on a GPT and safely roll back or compare earlier versions.
One central view that lists and manages every active GPT you run, removing the need to hunt through separate tools or bookmarks.

Hands-free AI voice chat for conversation, language practice and games
Talk to Roxy naturally in a voice-first interface and hear spoken replies, so you can use the app while driving, cooking or relaxing without touching your phone.
Play trivia, word puzzles, 20 questions and other casual games using only your voice for entertainment on the go.
Hold interactive conversations to practise a new language, or ask for instant translations when you need them.
Recent versions let you pick the underlying language model - Claude, DeepSeek, Gemini or your own custom model - to shape how conversations feel.

Offers industry-leading conversational voice capabilities and broad reasoning, though it lacks specialized roleplay games.
Offers industry-leading conversational voice capabilities and broad reasoning, though it lacks specialized roleplay games.

Provides fluid multimodal voice interactions and massive context integration, but is less tailored for casual companion games.
Provides fluid multimodal voice interactions and massive context integration, but is less tailored for casual companion games.

Delivers real-time conversational assistance with live web integration, but lacks dedicated hands-free voice companion modes.
Delivers real-time conversational assistance with live web integration, but lacks dedicated hands-free voice companion modes.

SpecialistExcels at high-accuracy translation and real-time voice translation, but does not offer conversational companion gameplay.
SpecialistExcels at high-accuracy translation and real-time voice translation, but does not offer conversational companion gameplay.

SpecialistFeatures structured language courses with conversational avatar tutors, but lacks open-ended voice gaming.
SpecialistFeatures structured language courses with conversational avatar tutors, but lacks open-ended voice gaming.

Buy a prompt that already works - or sell the ones you have perfected.
Buy a prompt that already works - or sell the ones you have perfected.
SpecialistFocuses strictly on interactive language learning and spoken fluency coaching rather than entertainment companions.
SpecialistFocuses strictly on interactive language learning and spoken fluency coaching rather than entertainment companions.

SpecialistActs as a multilingual messaging assistant with voice support, but lacks advanced hands-free spoken gaming features.
SpecialistActs as a multilingual messaging assistant with voice support, but lacks advanced hands-free spoken gaming features.

SpecialistSpeak a new language from day one with human-like AI and expert human tutors
SpecialistSpeak a new language from day one with human-like AI and expert human tutors

SpecialistPractise real English conversations with an AI tutor that gives instant feedback
SpecialistPractise real English conversations with an AI tutor that gives instant feedback

SpecialistLearn a language the way you learned your first: copy, then speak.
SpecialistLearn a language the way you learned your first: copy, then speak.

Free / Open-sourceMarketplace to find, hire, or build AI agents for real work
Free / Open-sourceMarketplace to find, hire, or build AI agents for real work