
Plumbline: Bible Study
SOAP Journal & Devotional
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Free
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About
READ SCRIPTURE. NOTICE MORE. LIVE IT OUT.
A quiet Bible study journal built around the SOAP method. Reflect on God's Word with thoughtful questions, not ready-made answers.
MAKE SCRIPTURE PERSONAL
Follow four simple steps: Scripture, Observation, Application, and Prayer. Write what stands out, choose one small step, and keep your reflections together.
A STUDY GUIDE THAT ASKS, NOT TELLS
Turn it on when you want it. Brief, passage-based questions help you think more deeply. The AI study guide works from the Bible text you are reading and points to Scripture references. AI responses can contain mistakes; always check them against Scripture. The guide does not replace your pastor or your church. Only the notes and questions you choose to share are sent for AI processing. Your prayers are never sent.
LISTEN TO THE WHOLE BIBLE
The complete Berean Standard Bible, narrated by Bob Souer. Listen to a full chapter or just the verses you are studying, at home, on a walk, or in the car. Free for everyone.
READ AND REMEMBER
• Read and search the Bible offline in BSB, KJV, or WEB.
• Keep your journal encrypted on your iPhone. No account required.
• Look back on your week and see what you hoped to put into practice.
• Share beautiful verse cards. Your notes and prayers stay private unless you choose to export them.
• Follow 47 daily Lent and Easter readings.
• Set gentle reminders that never show what you wrote.
START FREE
Read, listen, journal, and complete studies for free, with one short guided conversation per day and one ad on the home screen. No ads while reading or studying.
PLUMBLINE PRO
Get expanded AI study guidance, an ad-free experience, weekly recap PDFs, and custom guides for your small group. AI guidance is subject to fair use limits.
Choose $7.99/month or $49.99/year. Eligible new subscribers can try the yearly plan free for 7 days. The monthly plan has no free trial. After the trial, $49.99/year is charged to your Apple Account unless you cancel at least 24 hours before the trial ends. Monthly subscriptions are charged at purchase confirmation. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current billing period. Manage or cancel anytime in your iPhone's Settings. Prices may vary by region.
Privacy Policy: https://sarperlabs.com/apps/plumbline/privacy
Terms of Use: https://sarperlabs.com/apps/plumbline/terms
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What's New in Plumbline
1.0
November 7, 2026
2
Subscriptions & In-App Purchases
Plumbline Pro Annual
Unlimited guided help, group guides and no ads.
$49.991 Year
7 Days trial




