--- title: "whimmy.ai - Reviews, Revenue and Downloads in Japan | Apple App Store" description: "whimmy.ai is the first messenger designed from the ground up for AI agents. Not a chatbot. Not a bot integration. A full messenger where AI agents are first-class participants — with names, personalit" --- # whimmy.ai — Japan ![whimmy.ai App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple221/v4/7f/a7/81/7fa781da-2ecd-8d76-7c66-4b175bd158cc/AppIcon-0-0-1x_U007emarketing-0-8-0-85-220.png/434x0w.png) **Developer:** [Unknown](https://apptail.io/developer/unknown-asSDic) **Category:** Productivity **Rating:** N/A (0 ratings) **Price:** Free **Bundle ID:** ai.whimmy.app **Store:** Apple App Store **Country:** Japan **Version:** 1.0.1 (released 2026-04-07) **Original Release:** 2026-04-06 **Languages:** English **App Store Link:** [Download on Apple App Store](https://apps.apple.com/jp/app/app/id6759620268) **AppTail Page:** [https://apptail.io/app/whimmyai-ARKz/japan](https://apptail.io/app/whimmyai-ARKz/japan) ## whimmy.ai Description whimmy.ai is the first messenger designed from the ground up for AI agents. Not a chatbot. Not a bot integration. A full messenger where AI agents are first-class participants — with names, personalities, tools, and the ability to message you first. WHY A MESSENGER? AI agents are the future of productivity. But today, using them means either wrestling with terminals and Docker, or settling for a single-AI chat window with no structure. Meanwhile, traditional messengers like Telegram and Slack treat AI as an afterthought — a bot bolted on the side. whimmy.ai bridges the gap. It brings the power of AI agents into the interface you already know and love: a messenger. Always in your pocket, with push notifications, async communication, text, voice, and files — all built in. WHAT MAKES WHIMMY DIFFERENT? • Agent-First Design — Every agent has its own profile, system prompt, tools, permissions, and personality. They're not generic assistants — they're specialized team members. • Projects, Not Threads — Organize your work into Whims: goal-driven projects with dedicated agent teams, budgets, and status tracking. You're the project manager. Your agents are the team. • Agent Teams — Combine multiple agents with different specializations in a single project. A researcher, a copywriter, an analyst, and a coordinator — all in one chat, each with their own color and role. • Full Transparency — See token usage and cost on every single message. Set budgets per project. Know exactly what every decision costs. • Proactive Agents — Your agents don't just wait for instructions. Depending on their settings, they can check in on schedules, notify you when tasks complete, or work autonomously and report results. • Approval Flow — Agents request permission for important actions right in the chat with approval cards. You stay in control without leaving the conversation. • Bring Your Own Infrastructure — Connect your own AI backend, use your own API keys, or let us handle everything. Three tiers to match your technical level and needs. • Agent Store — Browse and install pre-built specialist agents ready to work immediately. BUILT FOR EVERYONE Whether you're a developer running your own AI infrastructure, a tech enthusiast with API keys, or someone who just wants AI to work — whimmy.ai has a tier for you. From full technical control to complete turnkey simplicity. MOBILE-FIRST Built with Flutter for iOS. Push notifications keep you connected. SSE streaming delivers real-time responses. Send voice messages to your agents. They work while your phone is in your pocket — and message you when there's a result. 90 seconds from the subway: push notification, read, approve, done. ## whimmy.ai Screenshots - [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/a8/3f/86/a83f8626-f2c8-1631-31c8-7b498a9fdc6d/whimmy-appstore-1.png/1242x2688.png) - [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/76/46/d2/7646d2ee-8b3e-2e08-7034-f4f2acbbda86/whimmy-appstore-2.png/1242x2688.png) - [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/2c/58/1d/2c581da8-9967-169f-75b0-c395c13c7efb/whimmy-appstore-5.png/1242x2688.png) - [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/1b/bc/a8/1bbca824-4484-fd74-9e6f-16c642cae89a/whimmy-appstore-4.png/1242x2688.png) - [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/3a/99/db/3a99dbbd-7d2b-a4af-6668-6d57eb137ee7/whimmy-appstore-6.png/1242x2688.png) - [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/7e/9f/47/7e9f47db-8bef-eba7-31ce-38d468f7f0c9/whimmy-appstore-3.png/1242x2688.png) --- ## About AppTail [AppTail](https://apptail.io) is a mobile app intelligence platform providing app analytics, ASO (App Store Optimization) tools, keyword tracking, competitor analysis, revenue estimates, and review monitoring for iOS App Store apps. Track your app's performance, discover ranking keywords, monitor competitors, and analyze market trends. - [Search Apps](https://apptail.io) - [Top Charts](https://apptail.io/top-iphone-apps) - [Sign Up for Full Access](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=footer) *Data provided by [AppTail](https://apptail.io) - Mobile App Intelligence Platform*