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57
BU Score
Solid

Language Reactor ReadLang 1L

4.7 ✍️ Editor
✍️ BU Analytics Review

Language Reactor ReadLang 1L is an iOS app from Nguyen Hong Phuc in the News category, currently rated 4.7★ across 125 ratings. Initial signal reads as mixed reviews — supporters praise core features while critics cite stability/value gaps.

Our BU Score puts it at 57Solid (established niche player). For a News app, that means established niche player.

Track changes month-over-month in the Performance section below — live snapshot history and revenue forecast included.

📊 Performance Tracking LIVE

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idle
0%
Rating
Reviews
Forecast Revenue / mo
Snapshots tracked
0
since first record
Range:

💰 Forecast Revenue / mo

MODEL
Revenue forecast computed from BU's 234 trigger model on each snapshot. Calibrated against ground-truth from 58 verified-revenue apps.
🔬Forecast Breakdown — Why This Estimate?Top 5 of 5 triggers
Our ML model uses 200+ signals from public data. These are the most influential for this app:
Paid app ($0.00)METRIC
+$2,800
Excellent rating (4.7★)METRIC
+$2,200
New app (11 months old)METRIC
−$700
Early-stage install base (125 ratings)METRIC
+$400
Single-language (English only)METRIC
−$400
METRIC = structural app data · REVIEW = mined from user reviews · ✓ VERIFIED = Stripe-verified anchor (TrustMRR)

📈 Reviews Growth

LIVE
Cumulative review count from first BU snapshot. Each point = a tracked update.
💚Sentiment Over Time↑ green = positive · ↓ red = negative
Jul 25
Aug 25
Nov 25
Jan 26
Feb 26

⭐ Rating Trend

LIVE
Average rating evolution. Updates with each new review batch.

🗓️ Snapshot Timeline

HISTORY
Each bar shows a tracked update and the metric delta from the previous snapshot.
App Specs
🔐 Own this app? Claim & verify MRR →
💾 57 MB🔞 17+📱 iOS 15.1+🔖 v2.0.26🔄 updated 3mo ago🌐 EN📂 News💰 Paid🚀 Launched 2025 (0y old)

📝 About this app

Learn languages with Language Reactor using Active Recall and Spaced Repetition in context.

Learn a new word just to forget it minutes later?

The problem isn’t you—it’s passive recall. By seeing translations too quickly, your brain never truly locks in new vocabulary.

Our app flips the process: you try recalling words first, then check the translation. This active recall approach cements vocabulary into your long-term memory. Ready to stop forgetting and start mastering? Install now!

Features include:
- Active Recall: Promotes deeper memory retention by requiring you to recall words and phrases rather than passively recognizing them.
- Adaptive Learning: Starts with full translations and gradually shifts to giving hints like the first letter of a word, catering to your learning progress.
- Seamless Integration: Works intuitively with text and audio on various websites, providing a fluid learning experience without switching contexts.
- Customizable Settings: Allows you to adjust the difficulty level and choose which aspects of language learning to focus on.

To get started, navigate to any webpage and click on unfamiliar words or listen to dialogues. The extension will facilitate your learning process without interrupting your browsing experience.

We support 100+ languages and reader with Voice Aloud Reader and more...

We are constantly improving our tools based on user feedback. Please feel free to reach out if you have suggestions or need support. We're excited to be part of your language learning journey!

Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

🆕 What's New · v2.0.26

- improved peformance & fixed bugs

Profile & Insights

Everything we know — and don't — about this app and its company.

Identification

App name
Language Reactor ReadLang 1L
Developer
Nguyen Hong Phuc
Bundle ID
com.oneletters.expo
App Store URL
Open in App Store
Category
News
Content rating
17+
Languages
EN

Company

Website
Not found
Tagline
Today
Description
Find apps and games for iPhone, iPad, Mac, and more on the App Store.
Founded
Not found
HQ / Address
Not found
Employees
Not found
Logo
OG image

Revenue

Verified revenue / mo
Not found
AI revenue estimate / mo
Not found
AI annual estimate
Not found
ML model estimate / mo
$144/mo
Top-grossing rank
Outside top 100 in US News
All-time revenue
Not found
Pricing
Not found

Founder

Name
Not found
X / Twitter
Not found
LinkedIn
Not found
GitHub
Not found
X followers
Not found
Public statements
Not found

Funding

Total raised
Not found
Last round
Not found
Investors
Not found
Crunchbase
Not found
AngelList
Not found

Press & Links

Articles found
Not found
Listed on
Not found
Blog
Not found
Press / News
Not found

Contacts & Socials

Socials
Not found
Email
Not found
Phone
Not found
Contact page
Not found
About page
https://apps.apple.com/us/iphone/story/id1781301520
📈Ratings growth125 ratings+1686% lifetimeShow 3-year history estimate ▾May 2025Nov 2025May 2026
Tracked (7 weeks) Pre-tracking estimate (12 weeks) · model-based, ±5% noise · anchored to release date and current value
🌍Geographic ReachNot ranked
This app is currently outside the top 100 grossing in all 9 countries we monitor (US, UK, DE, FR, JP, CA, AU, BR, IN). Niche or new apps often launch this way — popularity rankings appear once daily revenue clears the regional threshold.
Profile is built from iTunes Lookup + developer site scrape + ML revenue model. Empty fields show "Not found" — additional sources (Crunchbase, X, IndieHackers, Acquire.com) coming.
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