T4 LTD is a full-service agency for singing and live-streaming apps — development, growth marketing, business development, and talent recruitment under one roof. Our current flagship engagement: ColorSing, Japan's singing-specialized live-streaming platform.
Live-streaming has moved from niche to mainstream infrastructure for entertainment, commerce, and community — and singing-specific formats are still early relative to the broader market.
~$97B
Global live-streaming market size in 2026, growing at roughly 25%+ CAGR
59%+
Share of the global karaoke-app market held by Asia-Pacific, led by China, Japan, and Korea
$8.3B → $19.8B
Projected global karaoke-app market growth from 2026 to 2035
Figures are general industry market-research estimates (multiple sources, 2026), provided for context — not platform-specific guarantees.
Whether you're launching a new singing or live-streaming app, or scaling one that already exists, we plug in wherever you need us most.
Technical delivery for live-streaming and karaoke/singing apps — web and mobile.
Organic and paid growth to bring listeners and viewers to your platform.
Partnerships and market-entry strategy for new regions.
Bilingual recruitment funnels that bring qualified streamers to your platform organically.
Our specialty is singing and karaoke-style live-streaming — the same playbook extends to adjacent formats.
Our core specialty — song-by-song monetization, duet features, and singer discovery.
Talk, lifestyle, and variety-format live broadcast platforms.
Avatar-based streaming with the same recruitment and growth mechanics.
Audio-first live rooms and social-audio formats.
ColorSing is a singing-specialized live-streaming app backed by DeNA and JOYSOUND (Exing), with a catalog of 100,000+ karaoke tracks. T4 LTD operates as an official partner agency, running the streamer-recruitment side of the business.
ColorSing needed a steady, organic pipeline of qualified singers — not just in Japan, but reaching Korean singers willing to broadcast remotely to a fresh, less-saturated market.
We built dedicated, fully-localized (not machine-translated) recruitment funnels in Japanese and Korean, each with its own SEO strategy, trust-building content, and messaging-app-first application flow (LINE/KakaoTalk).
T4 LTD is an operating company with multiple established business lines — OTC brokerage, management consulting, and CSR — not a one-off recruitment site. Our live-streaming platform work is run with the same operational discipline, backed by an established Singapore entity. Read more about our company.
01
We learn your platform, market, and goals.
02
A tailored plan across development, marketing, and talent acquisition.
03
Execution — product, campaigns, and recruitment funnels.
04
Ongoing optimization for organic, long-term growth.
Industry-wide, a well-scoped MVP (profiles, live broadcast, chat, one monetization mechanism) typically runs $10,000–$30,000 on a single platform. Mid-tier apps with core features on both iOS and Android generally fall in the $40,000–$70,000 range, and a full-featured, dual-platform product with advanced moderation, analytics, and payments can run $150,000–$300,000+. We scope your specific requirements before quoting — these are general market ranges, not a fixed price.
A single-platform MVP typically takes 3–5 months. A more complete, dual-platform (iOS + Android) product usually takes 7–12 months. Timeline depends heavily on feature scope — live chat, gifting/monetization, moderation tools, and recommendation algorithms each add development time.
No. ColorSing is our current flagship case study and an active, ongoing engagement, but T4 LTD works across the live-streaming and singing-app space more broadly — development, marketing, and talent acquisition for platforms at any stage, from pre-launch to scaling.
Yes. A large part of our work is growth-stage: SEO and organic content strategy, paid acquisition, and — where relevant — building dedicated streamer/talent recruitment funnels like the ones we run for ColorSing in Japan and Korea.
Our core operating markets are Japan, South Korea, and Singapore, with natively-written (not machine-translated) content and support in Japanese, Korean, and English. We can scope other markets on request.
Our specialty is singing and karaoke-style live-streaming, but the same development, marketing, and recruitment playbook applies to adjacent formats — general social live-streaming, VTuber platforms, and live-audio apps. Tell us about your platform and we'll tell you where we fit.