Blue Letter Bible Review: Free Tools and Word Study

What Blue Letter Bible offers for free

Blue Letter Bible describes its Bible study resources as "online, in-depth, and always free," and both its iPhone and Android apps are free to install. The US App Store listing names the core of the toolkit: original-language lexicons, text commentaries, highlighting, and free Bible downloads, with the English Standard Version, NASB, and NASB2020 listed as free downloads.

For a reader deciding whether to try it, the free core breaks into these practical features:

• Word study: an interlinear view that links each word to a Strong's-linked lexicon and a concordance list of every occurrence.

• Context tools: text commentaries and a translation comparison view for the same verse.

• Personal study: highlighting is documented in the iOS listing; check how the app you use keeps your own notes.

• Platforms: a website plus free iOS and Android apps.

• Access conditions: some tools require an internet connection, detailed below.

If you are still mapping the wider category, our best Bible apps guide compares the main kinds of Bible apps before you commit to any one brand. And if this review already points you away from Blue Letter Bible, the paired Blue Letter Bible alternatives article continues that decision.

A word study that keeps the verse in context

Three terms do most of the work in original-language tools, and each is simpler than it sounds. A lemma is the dictionary form of a Greek or Hebrew word, the form you would look up whatever shape the word takes in the sentence. A gloss is the short English label shown beside it, a starting point rather than a full definition. An interlinear lays the original words out in verse order with their glosses, to help you compare the words behind a translation. English and Greek or Hebrew do not always line up word for word.

The documented Android steps

Blue Letter Bible's Android manual describes a direct path from a verse to its vocabulary:

1. Open a chapter and tap a verse.

2. Choose Interlinear from the verse menu.

3. Tap a row in the word-by-word table to open the linked concordance and lexicon view.

4. Read the lexicon entry, then scroll the occurrence list showing every time that term appears in Scripture.

5. Use the Parse option for grammatical details about the word's form.

One condition matters, and the manual states it plainly: this tool is only available when your device is online.

Try the sequence on a familiar verse

Choose a verse from the chapter you are reading. On Android, tap the verse, open Interlinear, and choose one word row. Read the lexicon entry and inspect a few occurrences in their surrounding sentences. Write down the question the lookup helped you answer, and anything that remains uncertain.

One safety habit belongs here, stated once: an occurrence list tells you where a word appears, not what it means in each place. Meaning still comes from the sentence, the paragraph, and the book around the word. The interlinear helps you ask better questions of the text, and it rewards slow reading more than quick conclusions.

Commentaries, notes, and parallel reading

Word study is one half of the toolkit. The other half keeps you in conversation with translations and interpreters.

The iPhone listing names text commentaries among the free tools, and the Android manual documents a separate companion feature: tap any verse and choose Translation Comparison to see how different translations render the same sentence. These are two separate checks: compare the translations, then use Interlinear for the original-language reference. Highlighting, also named in the iPhone listing, rounds out the personal layer for marking what you want to revisit.

A ten-minute evaluation you can run yourself

For an Android session, use the documented Interlinear and Translation Comparison tools, then take your own notes:

1. Pick a single passage you already know well.

2. Run the interlinear steps on one word and read the lexicon entry to the end.

3. Open one commentary on the passage and notice whether it sends you back to the text.

4. Open Translation Comparison and read the verse in three renderings.

5. Write one observation and the reference in a separate notebook so you can review the result later.

Ten minutes of this tells you more about fit than any feature list: whether the screens keep the verse in view, whether the lexicon entries answer your kind of question, and whether the commentary voices help or distract.

Web, iPhone, Android, and internet access

Blue Letter Bible runs as a website and as free apps for iPhone and Android, and this review verified the US store listings for both. What it could not verify — and therefore does not claim — is that the two apps work identically. The step-by-step interlinear and translation-comparison instructions come from the Android manual. The iOS listing separately confirms lexicons, commentaries, highlighting, and Bible downloads; that does not establish identical menus.

Internet access deserves a precise answer. The Android manual states that the interlinear tool, including its linked concordance and lexicon view, is available only when the device is online. That is a documented limit for one tool on one platform. It does not prove that ordinary Bible reading in the app requires a connection, and it says nothing about the iPhone app, whose listing advertises free downloads of the ESV, NASB, and NASB2020 translations. This review stops at what the sources say: if offline original-language study on Android matters to you, the documented answer today is no.

Privacy and saved study material

Blue Letter Bible's privacy policy covers its website and mobile services, and describes both data collection and a scoped no-sale commitment.

On the collection side, the policy describes log data, cookie and browser local storage data, preference data, and contact and account data. It names outside providers — MailChimp appears by name — and addresses advertising. In plain terms: the service records technical data passively, stores preferences, holds the contact and account information you give it, and runs some functions through named third parties.

On the protection side, the policy promises never to sell, rent, or trade your contact information and donation information. Read that scope literally. It is a real commitment, and a bounded one: a no-sale promise covering two named categories of data, not a promise of no collection and not a promise of no sharing for any purpose. A policy is also a statement of intent, not an independent audit.

Before entering sensitive study notes or prayer-related information, review how the particular feature stores and shares it. The policy categories alone do not prove how every highlight or note is handled. Keep a separate copy of study material you need to retain.

Who should choose a different study tool

Blue Letter Bible fits a specific reader well: someone who wants free access to lexicons, commentaries, and translation comparison, can use a connection for Android Interlinear, and is comfortable with the data practices described in the policy.

Look elsewhere when your needs fall outside those lines:

• You need offline original-language tools on Android, where the interlinear is documented as online-only.

• You prefer a study tool whose policy does not include advertising or named third-party providers.

• You mainly want guided video teaching. For listening, note that the iOS listing does include audio Bibles and audio commentaries; compare the recording and connection requirements you need before ruling it out.

The paired alternatives article walks through that decision for readers in these situations.

When the question comes from a sermon

Sometimes the word you want to study reached you through a sermon, and the real gap is the sermon itself: by midweek, the explanation that sent you to the lexicon is hard to reconstruct. For that adjacent need, Bible Note can record or import sermon audio you are authorized to use, produce a timestamped transcript with recognized Scripture references, and keep your sermon notes organized, with human verification of the output expected.

The bounded Bible Note review covers what that workflow does and does not do, and the Bible Note sermon transcription page shows the steps. It accompanies a study library like Blue Letter Bible; it does not replace one.

Frequently asked questions

Sources

• BLB Android App — Blue Letter Bible, accessed September 20, 2026.

• BLB Android Quickstart — Blue Letter Bible, accessed September 20, 2026.

• Interlinear for Android — Blue Letter Bible, accessed September 20, 2026.

• Translation Comparison for Android — Blue Letter Bible, accessed September 20, 2026.

• Apps and Tools — Blue Letter Bible, accessed September 20, 2026.

• Privacy Policy — Blue Letter Bible, accessed September 20, 2026.

• Blue Letter Bible US iOS App Store developer listing — Blue Letter Bible via Apple, accessed September 20, 2026.

• Bible Note sermon transcription — Bible Note, accessed September 20, 2026.