PopStudy vs Readle
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PopStudy
Master any subject with this educational app utilizing a spaced repetition system. Create custom study mixes, engage in personalized sessions, and track your learning progress. Access curated content and study offline on your devices.
- Spaced repetition system
- Curated expert content
- Customizable study mixes
- Personalized daily sessions
- Progress tracking
- Cross-device syncing
- Offline studying
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PopStudy — Master Spanish, French, or Chinese Most language apps teach you to dabble. PopStudy is built for learners who want to actually master a language — to read, write, listen, and speak with real fluency. Three languages. Curriculum-grade content. An AI coach that sharpens your skills. How does it work? Have you ever found yourself unwittingly singing the words to a song that's played over and over on the radio? That's spaced repetition at work. Research shows our brains transform repeated information into real knowledge, very quickly. PopStudy uses a scientifically-tuned spaced repetition engine to help you achieve fluency in record time — training you to recognize the nuanced sounds, patterns, and rhythms that are the building blocks of any language. What's inside: - A scientifically-tuned spaced repetition engine that gets vocabulary and grammar to stick — faster than streak-based apps. - An expert-curated library of lessons in Spanish, French, and Chinese, charting a path for everyday learners, plus ACTFL-aligned paths for school programs. - Custom AI lessons on any topic you choose — from job interview prep to vocabulary from your favorite TV shows — generated on demand. - A 24/7 AI coach to answer your questions and target your learning goals. - Listening, reading, speaking, and writing activities — comprehension drills built on native-speaker audio, pronunciation practice with instant feedback, spelling drills, and role-play scenarios. - Daily performance reports that show your strengths and weaknesses, so you always know how far you've come and where you need to go next. - Cross-platform sync across iPhone, iPad, and the web. Pick up where you left off. PopStudy is built for serious learners — students preparing for AP Spanish, AP French, or HSK Chinese exams; professionals working toward fluency; heritage speakers reconnecting with a family language; and anyone ready to go beyond beginner streaks. Have fun speaking your new language with confidence — you'll amaze yourself and the people around you. Download PopStudy and start mastering your language today. PopStudy Premium is an auto-renewable subscription. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://popstudy.com/privacy_policy
Readle
Master new languages through engaging real-world stories and bite-sized lessons. Practice reading, listening, and vocabulary with interactive quizzes and flashcards. Track your progress and see measurable improvements in just 5 minutes a day.
- Learn through real stories
- Bite-sized daily lessons
- Reading and listening practice
- Instant word lookup
- Smart vocabulary practice
- Quizzes and skill testing
- Progress tracking
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Learn Spanish, French, German & more with real stories — not boring textbooks. Practice daily with structured levels designed for real progress. Improve your language skills in just 5 minutes a day — reading, listening, and testing in one place. Track your progress and see real results — not just lessons. Learn languages faster with over 2,000 real-world news stories, transformed into bite-sized lessons, flashcards, quizzes, and interactive practice. Readle (formerly Langster) is a CEFR-graded language learning app designed to help you master French, German, Spanish, English, Japanese, and Chinese in real-world contexts. Just 5 minutes a day is all it takes to learn, practice, and improve consistently. WHY Readle? • Learn through real stories, not random sentences • Practice with flashcards, quizzes, and vocabulary training • Improve reading, listening, and comprehension together • Built for daily learning and measurable progress Download Readle for FREE and start learning languages in a smarter way. ====== WHAT LANGUAGES CAN I LEARN? You can learn French, Spanish, German, English, Japanese, and Chinese ====== WHY LEARNING WITH STORIES WORKS ► LEARN THROUGH IMMERSION & LEVELS Our language experts turn real-world news into structured lessons across: • CEFR (A1–B2) • JLPT (N5–N2) • HSK (1–4) Learn step-by-step with level-based progression. ► BITE-SIZED DAILY LESSONS Over 2,000 stories & articles designed for: • fast learning • daily practice • real-world understanding Includes vocabulary, grammar tips, and context-based learning. ► IMPROVE READING & LISTENING • Listen sentence by sentence • Train pronunciation naturally • Learn how the language is actually used ► INSTANT WORD LOOKUP Tap any word for: • translation • conjugation • meaning in context No need to switch between apps. ► GRAMMAR IN CONTEXT Understand grammar naturally through real examples. Perfect companion for learners using: Deutsche Welle, DW learn German, Klett Lernen, Klett Augmented, Schritte Plus Neu, Hueber, TV5MONDE, etc. ► SMART VOCABULARY PRACTICE • Spaced repetition flashcards • Review at the optimal time • Turn passive reading into active learning ► QUIZ & TEST YOUR SKILLS • Practice with quizzes in every story • Test reading comprehension and vocabulary • Prepare for exams like: IELTS, TOEFL, DELF, Goethe, DELE, JLPT, HSK ► DAILY STORIES & CONTENT New stories every day across topics like: • Travel • Culture • Food • Technology • Science • News (TV5monde, BBC, RFI, France 24, Le Monde, French TV, radio, DW/Deutsche Welle, etc.) WHY READLE WORKS Readle combines: • Real-world content • Daily practice + testing loop • Clear progress tracking So you don’t just learn — you improve every day. SUPPORT Questions? Contact us: support@readle-app.com Privacy policy: https://readle-app.com/en/privacy-policy/ Terms of use: https://readle-app.com/en/terms-of-use/
Screenshots
Verdict
The clearest difference is ads: PopStudy at none against Readle's shown. PopStudy also leads on review sentiment (100% vs 81%) and rating (4.9 vs 4.7). Readle's advantage is ratings volume (1.4K vs 8) and iOS requirement (15.0 vs 18.0). On price, update cadence, in-app purchases and device support 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
Both are free to download. PopStudy sells 3 one-off in-app purchases and Readle sells 9 in-app purchases, starting at $12.99 per month. Whichever you choose, the download price is not the number that matters.
PopStudy holds the better App Store score, 4.9 against 4.7. That said, the two scores are not equally well evidenced: Readle has 1.4K ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 100% of PopStudy's written reviews are positive against 81% of Readle's.
PopStudy ships an update fortnightly, Readle every 3 weeks. The most recent releases landed on September 17, 2026 and September 25, 2026 respectively.
| Parameter | PopStudy | Readle |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (8 ratings) — better | 4.7 (1.4K ratings) |
| Positive reviews | 100.0% of reviews — better | 81.1% of reviews |
| Number of ratings | 8 | 1.4K — better |
| Update frequency | Fortnightly — better | Every 3 weeks |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 145 MB | 153 MB |
| Age rating | 4+ | 12+ |
| Developer | Longtail Studios | A-Type Technologies |
Customer experience
PopStudy
Readle
Bugs and requests
PopStudy
Not enough reviews yet to summarise bugs or requests.
Readle
Reported bugs
2 issues- Audio not working for some users
- Subscription issues and unexpected charges
Requested features
5 requests- Add more languages beyond the current offerings
- Improve navigation and search functionality
- Provide more detailed grammar explanations
- Allow customization of vocabulary and quiz settings
- Integrate speaking and writing practice exercises
In-app purchases
PopStudy
- 1-Month Subscription$7.99
- 3-Month Subscription$19.99
- 1-Year Subscription$59.99
Readle
- Learn Languages: Premium7 Days trial$12.991 Month
- Langster Monthly: Daily Reads$12.991 Month
- Readle Monthly: Daily Reads$14.991 Month
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- Readle Quarterly Subscription$44.993 Months
- Langster Yearly: Daily Stories7 Days trial$69.991 Year
- Learn Languages: Premium$69.991 Year
- Readle Yearly: Daily Stories7 Days trial$69.991 Year
- Langster Premium Lifetime$199.99
- Readle Premium Lifetime$249.99









