PostPrime

PostPrime is a Japanese social networking service (SNS) operated by PostPrime Inc. (PostPrime株式会社). It was released in September 2021 by a company founded by Dan Takahashi, who started development in January 2021 and first opened a limited beta to 3,000 users in May 2021. The service is built around the exchange of information related to money and investing, but it is not strictly an investment-only SNS: users can post video, audio, text and images across a wide range of topics, including artistic works and everyday how-to content. It is available through web browsers and iOS and Android apps. The platform's defining feature is a creator economy model in which users can purchase content, allowing posters to earn income directly rather than relying on affiliate arrangements. A badge system evaluates the quality of posts based on engagement metrics such as views, impressions and follower counts, ranking creators so that users can more easily find high-quality content. Once a user reaches Level 4, they can publish paid "Prime Posts," which are viewable only by users who have registered for the Prime subscription. A "Thank You" tipping function lets users send arbitrary amounts to Prime Creators and gives their profile image preferential visibility. Membership is a subscription service that unlocks market-analysis tools such as voting-rate charts according to rank; in July 2024 the top-tier plan, an AI system called IZANAVI, was released. PostPrime also incorporates investment-related functions, including a proprietary chart feature that lets users vote on the market and an AI anime character that conveys financial and economic information. The company behind the platform was established in September 2020 as DKT Inc. by founder Dan Takahashi, renamed PostPrime Inc. in April 2022 and moved to Shibuya, Tokyo, before relocating to Toranomon, Minato, Tokyo, in January 2023. In June 2024 the company listed on the Tokyo Stock Exchange Growth Market, and its shares hit consecutive daily price limits for three days from its June 20 debut. In October 2024 it established PostPrime Trading Inc. as a subsidiary to research and operate a trading platform. In January 2026, Cybridge LLC acquired a 19.8% stake from founder Dan Takahashi and announced a business and capital alliance. PostPrime positions itself as a quality-focused alternative to conventional social media, aiming to let individuals earn directly as creators while making high-quality content easy to discover. Its content remains predominantly investment-related, but the platform deliberately supports broader creative and lifestyle genres.

PostPrime's history begins with the founding of DKT Inc. in September 2020 by Dan Takahashi. Development of the PostPrime social networking service started in January 2021. The first beta version was released on May 7, 2021 to a limited group of 3,000 users. A second beta release followed from July 2 to July 5, 2021, this time limited to 30,000 users. A pre-release took place on September 3, 2021, and the official release was on September 8, 2021. Within a little over two weeks of the official release, more than 200,000 users had registered. In December 2021, the service began allowing users to view and pay for Prime Posts through the Android and iOS apps. In April 2022, DKT Inc. changed its trade name to PostPrime Inc. and relocated to Shibuya, Shibuya-ku, Tokyo. In June 2022, the Membership and Live features were released. In January 2023, the company moved to Toranomon, Minato-ku, Tokyo. In June 2023, the Course feature was released, and in July 2023 the AI anime character and Membership Platinum were launched. In June 2024, PostPrime Inc. listed on the Tokyo Stock Exchange Growth Market; from its June 20 debut, its shares hit consecutive daily price limits for three days. On July 11, 2024, the top-tier membership plan, an AI system called IZANAVI, was released. On October 1, 2024, the company established PostPrime Trading Inc. as a subsidiary for the purpose of researching and operating a trading platform. On January 15, 2026, Cybridge LLC acquired a 19.8% stake from founder Dan Takahashi and announced a business and capital alliance. Throughout its development, PostPrime has positioned itself around quality-focused content discovery and direct creator monetization, adding investment-related tools such as market voting charts and AI characters over time.

• DKT Inc. founded by Dan Takahashi

• Development of PostPrime starts

• First beta released to 3,000 users

• Second beta released to 30,000 users

• Pre-release

• Official release

• Prime Post viewing and payment begin on Android and iOS apps

• DKT Inc. renamed PostPrime Inc. and moved to Shibuya, Tokyo

• Membership and Live features released

• Company moves to Toranomon, Minato, Tokyo

• Course feature released

• AI anime character and Membership Platinum released

• Listed on the Tokyo Stock Exchange Growth Market

• IZANAVI AI system released as top-tier membership plan

• PostPrime Trading Inc. established as subsidiary

• Cybridge LLC acquires 19.8% stake and announces business and capital alliance

A quality-focused social platform for money and investing where creators can earn directly from their content.

• PostPrime SNS platform

  A social networking service for exchanging information about money, available on web, iOS and Android.

• Prime Posts

  Paid posts by approved Prime Creators, viewable only by Prime subscribers.

• Membership

  A subscription service unlocking market analysis tools such as voting-rate charts according to rank.

• IZANAVI

  An AI investment partner released in July 2024 as the top-tier membership plan.

• Badge system

  Ranks creators by post quality based on engagement, views, impressions and followers.

• Thank You function

  A tipping feature letting users send arbitrary amounts to Prime Creators and gain preferential profile visibility.

1. 1PostPrime | 資産形成を楽しく学べるプラットフォームpostprime.com
2. 2PostPrime - Wikipediaja.wikipedia.org
3. 3PostPrime - Wikidatawikidata.org