Spf.io (pronounced spiffy-oh) is TheoTech's AI translation and accessibility platform, built for churches and other gatherings that worship and meet in more than one language.^1 It delivers live captions and speech-to-speech translation in 100+ languages for in-person, online, and hybrid events, kept in time with the speaker, and its supported-languages page lists 192 languages across its tools.^2
Audience View puts captions and translated audio on a phone through a QR code or URL, so attendees need no headsets, receivers, or app download.^4 Operators can run Autopilot on its own, use Supervised AI with a person editing captions in real time, or tune the language AI with keyword boosting, do-not-translate lists, autoreplacements, and a profanity filter.^4 The same workspace handles video and audio subtitles, documents, slides, and multilingual polls, and Convo handles real-time conversations in 40+ languages.^2 It works with Zoom, YouTube, OBS, and StreamYard, and it translates ProPresenter slides as they appear on screen.^5 Pricing is quote-based and depends on usage such as languages, services, and attendees.^5
Christopher Lim founded TheoTech in 2013 after leaving Amazon, building on his research in automatic language translation.^8 Spf.io grew out of his experience at a bilingual church that was splitting into English-speaking and Indonesian-speaking congregations, and he wanted a translation service that would help unify the church.^8 On the Faithly Podcast in May 2026 he framed the work by asking, "what if God is our customer," and tied spf.io to Revelation 7, where people from every language worship together.^9 TheoTech also runs Project Pentecost, a movement helping congregations welcome many languages in weekly worship, and publishes free guides for multilingual ministry.^10
"This is the first time I felt included." - a worshipper at One Voice Fellowship, quoted by Pastor Chris Sicks^5
"Whereas before, maybe we can only have 20 people listening, now, it's unlimited." - Briana Southerland, Share Ministries Pastor at First Alliance Church, Calgary^4
Notable:
