How do you get a newly translated Bible into the hands of people who need it — especially in communities with limited internet, complex scripts, or oral traditions? Scripture App Builder (SAB), a free desktop tool from SIL Global, lets Bible translators, church leaders, and missionaries create fully customized Android, iOS, and Progressive Web Apps with synchronized Scripture text and audio — no programming required.^1
SAB takes raw Paratext translation files and packages them into polished apps complete with synchronized audio that highlights each verse as it is read aloud — a powerful feature for communities still learning to read in their own language.^2 App creators control everything: fonts, colors, icons, splash screens, and even right-to-left script support. Apps can include glossaries, song books, picture story books, Bible study questions, verse-of-the-day notifications, reading plans (now with optional devotional notes), and a verse-on-image editor for sharing on social media.^2 An optional AI Assistant offers guided prompts like "explain this passage" or "suggest ways to apply this to my life," with carefully crafted system prompts to ensure biblically faithful responses — app creators configure the prompts, AI provider, and model themselves, including a Gloo AI option that adds faith-aligned guardrails and the ability to choose a Christian tradition (Evangelical, Catholic, Mainline Protestant, or General Christian).^3
The tool's impact is remarkable: over 2,500 apps have been published for 1,960 languages across more than 140 countries, with over 65 million app installs worldwide.^3 Finished apps need no internet connection and can be shared phone-to-phone via Bluetooth or microSD card — critical for reaching remote communities. For broader distribution, apps can be published to the Google Play Store, Apple App Store, or deployed as Progressive Web Apps via Scriptoria.^1
The story behind SAB began in January 2014 with development work starting in Mali, West Africa, born from a meeting of partner organizations across the Sahel region who saw the need for Scripture apps that work offline and in local contexts.^4 Development became an international effort — with contributions from the United States, Thailand, Australia, Ghana, and Senegal — and the first public release came in April 2015.^4 Today SAB is actively maintained by SIL Language Technology with a rapid release cadence, including four major releases between April and July 2026 (v14.0 through v14.3).^5 Recent additions include YouVersion Platform Bible integration (hundreds of languages, now available in both Android and iOS apps), direct import of books from Paratext translation projects, Scripture Burrito support (an open standard for exchanging Bible translation projects between tools), Audio Sleep Timer, three new color themes (Rose, Sage, Charcoal), and devotional notes embedded within Bible reading plans.^5
"I am very grateful for the app of our culture, the New Testament app. I love this because God gives each ethnic group their culture to value." — Pastor Arcesio, Guahibo People Group^6
Notable- Used by translation organizations in 140+ countries to create apps for 1,960 languages^3
- Over 65 million installs across 2,500+ published apps^3
- Apps work completely offline — shareable via Bluetooth, microSD, or app stores^2
- Built-in AI Assistant with configurable, biblically-grounded system prompts; Gloo AI option adds faith-aligned guardrails and Christian-tradition selection^3
- YouVersion Platform integration (v14.2 Android, v14.3 iOS) lets apps pull Bible text in hundreds of languages with rights-holder permission^5
- Direct import from Paratext projects and Scripture Burrito zip files (v14.3) streamlines the translator-to-app pipeline^5
- Supports complex scripts via SIL's Non-Roman Script Initiative and GeckoView font rendering^2
- Includes Scriptoria service for publishing apps to Google Play and Apple App Store^1
- Open-source PWA template actively maintained on GitHub (sillsdev/appbuilder-pwa, MIT licensed)^7
- Development started in Mali (2014); now maintained by a globally distributed team at SIL^4
- Featured in Lausanne Global Analysis for the Uzbek Bible app's impact in Central Asia^8
- SIL Global: faith-based nonprofit serving language communities since 1934; member of Forum of Bible Agencies International and Wycliffe Global Alliance^4
Platform: Windows, macOS (Intel + Apple Silicon), Linux (desktop tool) → builds Android, iOS, and PWA apps Pricing: Free
