Short answer: Amoo: StepFun's personal AI agent built into Step AOS 1.0, the operating system of its STEPX Neo phone: tell the phone what you want and Amoo carries out the steps across apps and services. Hark Pro: Personal AI 'operating system for your life' with its own cloud computer (Handoff), proactive Action Buttons and Panels; free with paid usage tiers.
Amoo vs Hark Pro
Sourced facts only. “Unknown” means not verified yet.
Key facts side by side
| Criterion | Amoo | Hark Pro |
|---|---|---|
| Type | personal agent | personal agent |
| Vendor | StepFun (STEPX device brand) | Hark (founded by Brett Adcock, per TechCrunch) |
| Channels / category | Built into the STEPX Neo smartphone (Step AOS 1.0); sold in China via JD.com, Tmall and Douyin | iOS and Android apps, web |
| Pricing / availability | Comes with the STEPX Neo phone: early-access edition 3,999 yuan in China (phone, Step models, Step AOS and Step Studio), including a 12-month STEPX Token Plan. Cost after the first year not announced; availability outside China not announced | Full feature set free with a usage cap; Hark Pro² USD 20/month for 2× usage; Hark Pro³ USD 100/month for 10× usage (per hark.com) |
| Launched | 2026-10-13 | 2026-10-06 |
| Funding (reported) | StepFun raised USD 2.5 billion in a pre-IPO round in May 2026 (Caixin); backed by Tencent (Decrypt) | Not disclosed in the sources we checked |
| Channels confirmed | Mobile app | Mobile app, Web |
| Verified facts | STEPX Neo with Amoo launched 13 Oct 2026 at StepFun's 'Ready Builder One' event in Shanghai; pre-orders from 21:00 that day, sales from 16 Oct at 10:13; Early-access edition priced 3,999 yuan as a 'full-stack' bundle: phone, Step models, Step AOS operating system and Step Studio developer tool; Buyers get a 12-month STEPX Token Plan (10 billion tokens a month per Chinese launch coverage); StepFun has not said what AI costs after the first year; Step AOS 1.0 was built for the agent, with long-term memory, task scheduling and security in the base layer, breaking phone functions into blocks the agent calls via MCP; Two memories: one for the user's facts, habits and preferences, one for what Amoo learns about doing tasks; you can view task steps and manage permissions and memory; Simple commands run on a small on-device model, some offline; complex multi-app requests go to a larger cloud model; Nearly 100 partners including Alipay, Tencent, Ctrip, Didi, Meituan, Amap and CapCut; payments and bookings are completed on the partners' own platforms; A rear MiniLED dot-matrix screen shows what Amoo is doing; six-microphone array for voice; First unveiled 13 Jul 2026 in Shanghai with the STEPX brand and Step AOS; StepFun was founded in 2023 by former Microsoft vice president Jiang Daxin | Released widely on 6 Oct 2026, free for everyone on iOS, Android and web; Founded less than a year before launch by serial founder Brett Adcock (TechCrunch); Handoff, Hark's cloud computer, can juggle up to 6 browsers at once and log in to websites on your behalf; Connects to Google and Outlook via APIs and to files and databases via MCP; Shows the agent navigating the web in a small window so users can see its work (TechCrunch); 'Secured by Hark' encrypted vault holds cards and passwords; Hark says even it cannot see inside; Paid tiers add usage only: Hark Pro² USD 20/mo (2×) and Hark Pro³ USD 100/mo (10×); Hark plans to release its first physical product in 2027 |
| Website | https://www.stepx.com/ | https://hark.com/ |
| Sources | [1] [2] [3] [4] [5] | [1] [2] [3] [4] |
| Last checked | 2026-11-11 | 2026-11-11 |
Frequently asked questions
What is Amoo?
StepFun's personal AI agent built into Step AOS 1.0, the operating system of its STEPX Neo phone: tell the phone what you want and Amoo carries out the steps across apps and services.
What is Hark Pro?
Personal AI 'operating system for your life' with its own cloud computer (Handoff), proactive Action Buttons and Panels; free with paid usage tiers.
How much does Amoo cost?
Comes with the STEPX Neo phone: early-access edition 3,999 yuan in China (phone, Step models, Step AOS and Step Studio), including a 12-month STEPX Token Plan. Cost after the first year not announced; availability outside China not announced
How much does Hark Pro cost?
Full feature set free with a usage cap; Hark Pro² USD 20/month for 2× usage; Hark Pro³ USD 100/month for 10× usage (per hark.com)
Are Amoo and Hark Pro the same type of agent?
Amoo is listed as a personal agent and Hark Pro as a personal agent.
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