# Castbox

> Castbox is a global podcast player and creator platform built around a stubborn problem: spoken audio is easy to hear and hard to search. Founder Renee Wang shipped its first Android version in four days in 2016; one million downloads in two months persuaded her to stop testing other app ideas. Castbox now combines a large multilingual catalog, offline and cross-device listening, recommendations, automated transcription and in-audio search with hosting, analytics and paid-channel tools for podcasters. Its business is freemium - advertising and listener subscriptions support a broad free service - while its clearest strategic lesson is that an independent audio company can compete on utility and reach even when it cannot outspend the largest platforms on exclusive shows.

- **Founded:** 2016
- **Headquarters:** San Francisco, United States
- **Founders:** Renee (Xiaoyu) Wang (Founder and CEO)
- **Products:** Castbox App, In-Audio Search, Castbox Premium, Creator Studio, Premium Channels
- **Notable:** Reached one million downloads within two months of the first release, according to Renee Wang's NUS profile., Reported more than 20 million users across 135 countries, 2.4 million daily active users and 1.5 hours of average daily use in its newsroom figures., Built a catalog marketed as more than 95 million pieces of audio across 70 languages.

## Products & services

- **Castbox App** — A freemium podcast, internet radio and audiobook player for Android, iOS, web, cars, watches and smart speakers, with downloads, cross-device sync, OPML import, playback controls and personalized recommendations.
- **In-Audio Search** — Automated speech recognition and natural-language indexing that lets listeners search terms spoken inside episodes and jump toward relevant audio.
- **Castbox Premium** — A paid listener tier offering no visual ads, unlimited channel subscriptions, a personalized home screen, per-podcast playback settings, priority support and web hosting allowances.
- **Creator Studio** — Web tools for podcasters to create or claim channels, host shows, manage episodes, view Castbox play and subscriber analytics, connect social profiles and obtain an RSS feed.
- **Premium Channels** — Creator monetization tools supporting one-time, monthly or annual payment models for all-premium or mixed free-and-paid podcast feeds.

## Achievements

- Reached one million downloads within two months of the first release, according to Renee Wang's NUS profile.
- Reported more than 20 million users across 135 countries, 2.4 million daily active users and 1.5 hours of average daily use in its newsroom figures.
- Built a catalog marketed as more than 95 million pieces of audio across 70 languages.
- Passed 10 million downloads on Google Play and earned Editors' Choice status; the listing displayed about 367,000 ratings in September 2026.
- The US App Store listing displayed a 4.9 rating from about 199,000 ratings.
- Named a Google Play Android Excellence app in 2017 and nominated for the 2017 Google Play Awards' Standout Startup category.
- Won Google Play's 2016 Top Trending and Most Entertaining app recognitions.

## Latest updates

- **2026-09** — The Google Play listing showed 10M+ installs, about 367,000 ratings and an app update dated September 8, 2026.
- **2026-08** — Castbox and Eurowaves promoted a curated list of ten Spanish podcasts, continuing the company's international discovery focus.
- **2026-05** — Castbox's blog published new comparison and in-audio-search explainers that foreground discovery, the 95-million-item catalog and its freemium positioning.
- **2024-05** — The US App Store version history recorded reliability and performance updates through version 10.22.0.

## Links

- Website: https://castbox.fm/
- LinkedIn: https://www.linkedin.com/company/castbox
- Twitter/X: https://twitter.com/CastBox_FM
- Instagram: https://www.instagram.com/castbox_fm/
- Facebook: https://www.facebook.com/castbox.fm

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Profile page: https://yespress.io/castbox
Published by YesPress — https://yespress.io
Last updated: 2026-09-26