Comparison

Immerse vs Codex

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Immerse

This app guides motivated learners through language and culture acquisition using immersive techniques. It provides tools to gather and review language samples, taking users from beginner to intermediate proficiency. The app supports learning any language on earth, particularly for those following the BEC curriculum.

Highlights
  • Guided language learning instructions
  • Upload personal photos for learning
  • Record language helpers with photos
  • Review recordings during self-study
  • Capture daily life photos and notes
  • Progress to intermediate proficiency
Features
Read full description

The Immerse app guides highly motivated language learners through the process of culture and language acquisition in an immersive context. This app provides instructions and tools that help users gather and review increasing complex, culturally informed language samples. The current version of Immerse takes learners from their initial forays into their target language to an intermediate level of language proficiency. Developed by a group of dedicated language learners in unique language contexts, Immerse helps make learning any language on earth an achievable task. Immerse is mainly for language learners following the Becoming Equipped to Communicate (BEC) curriculum for CLA. This app requires a paid subscription. This subscription allows you to: * Receive guided instructions from the first day of language learning. * Upload your own photos to facilitate learning with a language helper. * Record your language helpers with recordings attached to your photos. * Review your recordings during self-study. * Prepare for deeper levels of language learning by capturing photos and notes from daily life. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Codex

This app provides a daily prayer guide for unreached language groups worldwide. Each day, you'll receive information about a specific group, including their location, beliefs, and how to pray for them. Explore hundreds of groups, track your prayer streak, and see their locations on a world map.

Highlights
  • Daily prayer group
  • Verified profiles with stories and photos
  • Hundreds of unreached language groups
  • Search and filter language groups
  • World map visualization
  • Prayer streak tracking
  • Daily prayer reminders
Features
Read full description

Codex is a catalog of unreached language groups that includes a description, photographs, and prayer points. Those groups that have been verified by Missionary are part of the daily prayer rotation. Pray for the unreached, from Tajikistan to Papua New Guinea to the Amazon. Millions of people still cannot hear the gospel in the language of their heart. And yet, those who would bring the gospel have no knowledge of who those people are. Enter Codex. Codex is a digital repository of unreached language groups. It brings the knowledge of the unreached to the saints who can reach them. Each day, the app gives you one language group to pray for: who they are, where they live, what they believe, and how to pray for them. Profiles verified by Missionary’s team carry the stories, photographs, and prayer points. ONE GROUP A DAY Build a gentle daily rhythm. Join others praying with the app and lift the same group up on the same day. Enable a daily reminder at the time that works for you, and start a streak as you pray. HUNDREDS OF LANGUAGE GROUPS Beyond the verified profiles, explore hundreds of unreached language groups drawn from public missions data: groups with no gospel, no disciples, and no church in their own language. Search by language or country, filter to frontier groups, or browse by Bible translation status. SEE THE TASK ON A MAP A world map plots every group in the guide, from the Caucasus to the Sahel to the islands of Southeast Asia. Every dot is a people waiting to hear. WHY LANGUAGE? Churches often think in terms of geography or people groups, but the Bible calls us to reach every tongue. The app explains why we count the unreached by language: language marks exactly where a person can, and cannot, hear and read the gospel. FROM YOUR CHURCH TO EVERY LANGUAGE Codex is built by Missionary—helping local churches send missionaries to peoples who have never heard of Christ. Praying through this guide is the first step. “I make it my ambition to preach the gospel, not where Christ has already been named.” — Romans 15:20

Screenshots

Immerse3 screens
Codex4 screens

Verdict

The call

The clearest difference is in-app purchases: Codex at none against Immerse's 2. Codex also leads on rating (5.0 vs 4.6) and review sentiment (100% vs 80%). Immerse's advantage is device support (4 vs 1) and iOS requirement (15.0 vs 17.0). On price, ratings volume and ads there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Immerse sells 2 in-app purchases, starting at $9.99 per month. Codex asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Codex holds the better App Store score, 5.0 against 4.6. Both are backed by a comparable volume of ratings — 24 and 12 respectively. Written reviews point the same way: 80% of Immerse's written reviews are positive against 100% of Codex's.

UpkeepUpdate frequency

Immerse ships an update every 2 weeks, Codex every 5 days. The most recent releases landed on October 27, 2026 and October 29, 2026 respectively.

Scorecard7 real differences · 3 level
Immerse versus Codex: the parameters behind the verdict, then further details
ParameterImmerseCodex
PriceFreeFree
Rating4.6 (24 ratings)5.0 (12 ratings) — better
Positive reviews80.0% of reviews100.0% of reviews — better
Number of ratings24 — better12
Update frequencyEvery 2 weeksEvery 5 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscriptionFree — better
DevicesiPhone, iPad, iPod, Mac — betteriPhone
Requires iOS15.0 — better17.0
Further details — not scored
Size67 MB25 MB
Age rating4+4+
DeveloperImmerse Language & CultureMissionary LLC

Customer experience

Immerse

All ratings24 ratings
Positive91.7%
Neutral0.0%
Negative8.3%
Written reviews10 reviews
Positive80.0%
Neutral0.0%
Negative20.0%

Codex

All ratings12 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Immerse

Subscriptions2
  • Monthly Subscription7 Days trial$9.991 Month
  • Yearly Subscription7 Days trial$99.991 Year
None

Codex

No in-app purchases

Questions

Is Immerse free?
Immerse is free to download, with in-app purchases available.
Is Codex free?
Codex is free to download, with no in-app purchases.
Which has better reviews, Immerse or Codex?
Codex is rated higher. Immerse averages 4.6 out of 5 from 24 ratings, while Codex averages 5.0 from 12 ratings.
Do Immerse or Codex have ads?
Neither Immerse nor Codex shows ads.
Which is updated more often, Immerse or Codex?
Immerse ships an update every 2 weeks, and Codex every 5 days. Most recently, Immerse was updated on October 27, 2026 and Codex on October 29, 2026.

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