The archive · Consumer Apps · Product decision · 2018–2026
Jiffcy bets silent "text calls": #1 Japan download growth, Nikkei Trendy hit
Japan's Jiffcy turned typing into a call-like real-time text exchange; ~1M download growth topped Japan's social-messaging charts in 2025.
Jiffcy Inc. (formerly Anaguma Inc.)
What the business is
Jiffcy is a real-name social app where calling someone starts a live typing exchange: each character appears instantly, recreating the presence of a phone call in text.
Starting capital：Series A round announced July 2025 (amount undisclosed) with NTT Docomo Ventures, Mizuho Capital, Genesia Ventures, Samurai Incubate, Big Bull, Asahi Media Lab Ventures and others; Genesia had joined the earlier seed round.
How it started
Founder Nishimura founded Anaguma Inc. in January 2018 while studying at Nihon University, building apps and services before landing on the loneliness of the pandemic: voice calls felt psychologically and physically heavy, especially for young users.
What happened
Jiffcy launched invite-only on the App Store in April 2023, opened to all in July 2024, and grew mostly by word of mouth. A four-person group text-call launched June 2025; users spread across ~100 countries with Japan, the US, South Korea and France leading. The company renamed itself Jiffcy Inc. in September 2025.
How it ended up
Still scaling: after the July 2025 Series A it is building Android, monetization, and a US push, with an IPO in view.
Background
Jiffcy is a real-name social app from Tokyo startup Anaguma Inc. (renamed Jiffcy Inc. in September 2025) that turns text into a call: you ring the other person, and when they answer, each character you type appears on their screen instantly, so a conversation unfolds with the presence of a voice call but no sound. Founder Masaki Nishimura, who started the company in January 2018, designed the product around the pandemic observation that voice calls carry psychological and physical barriers.
The bet was that this silent, real-time format could earn its own place among LINE, X and voice-first messaging. Growth came mostly organically: after an invite-only start in April 2023, the app opened to everyone in July 2024 and spread among Japanese Gen Z and Alpha students, with roughly 60% female users and notable adoption by hearing-impaired users.
Sensor Tower data showed Jiffcy as Japan's #1 social-messaging app by download growth from January 2025 through March 2026, with almost 1 million growth, over 50% organic installs, and MAU quadrupling in a year. Nikkei Trendy ranked it #9 on the 2025 Hit Products Best 30, and a July 2025 Series A drew NTT Docomo Ventures, Mizuho Capital, Genesia Ventures, Samurai Incubate and others. As of September 2026 the app is scaling: Android, monetization and a US market push are next, with an IPO in the founder's stated plan.
What has to be true
- The pandemic-created need for close contact without the burden of speaking gave the founding story a sharp, verifiable trigger.
- A patented real-time text-call interaction is a differentiated product bet rather than a copy of established messaging features.
- Measurable chart evidence—top download growth in Japan's social-messaging category, ~1M growth, 50%+ organic—shows real demand, not just press.
- The July 2025 Series A from NTT Docomo Ventures and other VCs turned an organic viral product into a funded growth bet.
- The Nikkei Trendy #9 hit-product ranking demonstrates cultural breakout beyond the app store.
What can be applied
A new interaction model—not a feature list—can break into a saturated messaging market if it changes how the core act feels; niche emotional roots (quiet intimacy) then scale by word of mouth.
Aftermath
As of September 2026, Jiffcy Inc. operates from Tokyo with the app available in about 100 countries; Japan remains the core market while the US, South Korea and France lead overseas. The company is developing the Android version and B2B/enterprise solutions, plans monetization via ads, stickers and subscriptions once infrastructure scale is reached, and has named the US market as the priority for its next funding round toward an eventual IPO.
Sources
- 2025年初頭からJiffcyのDL数が急上昇、オーガニックが50％以上を占め、MAUは1年で4倍に (Jiffcy downloads surge from early 2025; 50%+ organic; MAU quadruples in a year)
- テキスト通話アプリ『Jiffcy（ジフシー）』を提供する「穴熊」に追加出資しました (Follow-on investment in Anaguma, provider of text-call app Jiffcy)
- Follow-on Investment in Anaguma, Provider of the Text Call App "Jiffcy"
- 穴熊がシリーズA資金調達を実施、テキスト通話アプリ「Jiffcy」の開発加速とグローバル展開へ (Anaguma raises Series A to accelerate Jiffcy development and global expansion)
- テキスト通話アプリ「Jiffcy」人気の背景とは？ 日経トレンディ「2025年ヒット商品ベスト30」に選出 (Why Jiffcy is popular: selected for Nikkei Trendy's 2025 Hit Products Best 30)
spotted an error? The archive wants to know.
Your turn
You just read one. Describe what you are building, and see who is betting on the same thing.
Free account · 3 free questions · no card