900s vs linguaArbor
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
900s
Learn complex ideas through engaging, podcast-style audio episodes. Interact with AI to ask questions and explore topics in real time. Fits learning into short, 15-minute daily sessions.
- Podcast-style learning episodes
- 15-minute daily learning sessions
- AI-powered interactive Q&A
- Curated content on various topics
- Personalized library and progress tracking
- Offline downloads with premium
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Meet 900s โ the smartest way to learn in just 15 minutes a day. 900s turns the most relevant content into engaging, podcast-style episodes that fit perfectly into your 10-20 minute focus window. Tap play and dive into professionally narrated, 15-minute (900 seconds) chapters that make complex ideas stick. When curiosity strikes, simply hit the microphone button to start a live AI conversation with the book: ask questions, request clarifications, or explore related topics in real time โ it feels like chatting with the author. Key features โข Discover curated book episodes on technology, business, science, and more โข Search by keyword or browse by genre to find your next listen fast โข Mini player with 15-sec skip/back, background audio, and quick resume โข Real-time Interactive Audio Mode powered by AI & WebRTC โข Personal Library with Continue Listening & Finished lists โข Optional Premium upgrade: unlimited listening, ad-free, offline downloads Spend just 900 seconds a day (1 % of your time) and accumulate 90+ hours of deep learning each year. 900s makes learning as effortless as a podcast and as powerful as a tutor. Download now and start your 15-minute learning journey! Terms of Use: https://www.900s.app/legal#terms
linguaArbor
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linguaArbor helps you actually learn a language โ with a clear, structured path and natural pronunciation spoken aloud for every word and sentence. Pick from SIX languages and learn from the one you already know: โข English โข Spanish โข French โข German โข Italian โข Portuguese A REAL COURSE, NOT RANDOM LESSONS Your path follows the official CEFR framework: A1 โ A2 โ B1 โ the same standard used by schools and exams across Europe. A short placement test drops you in at exactly the right spot, so you never start from zero if you already know the basics. HEAR EVERY WORD OUT LOUD Every word and sentence is read aloud with natural pronunciation using your device's built-in voices, so you pick up the right sound from day one. Tap any item to hear it again as often as you like. PRACTICE THAT STICKS โข Multiple choice and image matching to build vocabulary fast โข Sentence building with a word bank to lock in grammar โข Listening exercises to train your ear โข Pair matching to fix meaning in memory โข Speak-aloud repetition with speech recognition to practice your pronunciation LEARN AT YOUR OWN PACE โ NO GUILT No aggressive streaks and no guilt-trip reminders. Practice whenever it suits you โ five minutes or fifty. Track your real progress across vocabulary, grammar, and listening, and watch it grow over time. A FAIR, SIMPLE PRICE Everything is FREE: all 6 languages, all audio, and all A1โB1 content. We're supported by ads. Want more? Premium gives you: โข A completely ad-free experience โข Unlimited energy (the "leaves") โ practice as much as you want, whenever you want Just โฌ4.99/month or โฌ24.99/year. No lifetime traps, no fake discounts. Cancel anytime. Want to go further? Our sister app linguaProfunda continues the journey at the advanced levels B2, C1, and C2. Grow your language, leaf by leaf. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is ads: 900s at none against linguaArbor's shown. 900s also leads on update cadence (weekly vs monthly). On price, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. 900s sells 4 in-app purchases, starting at $0.99 per month and linguaArbor sells 2 in-app purchases, starting at $3.99 per month. Whichever you choose, the download price is not the number that matters.
900s ships an update weekly, linguaArbor monthly. The most recent releases landed on September 21, 2026 and September 17, 2026 respectively.
| Parameter | 900s | linguaArbor |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 75.0% of reviews | โ |
| Update frequency | Weekly โ better | Monthly |
| Ads | No โ better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | โ |
| Devices | iPhone | iPhone, iPad โ better |
| Requires iOS | 16.4 | 16.0 โ better |
| Further details โ not scored | ||
| Size | 78 MB | 263 MB |
| Age rating | 4+ | 4+ |
| Developer | Unit U+2467 GmbH | Phivolt Srls |
In-app purchases
900s
- Basic โ monatlich7 Days trial$0.991 Month
- Plus โ monatlich7 Days trial$2.991 Month
- Ultimate$3.991 Month
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- BILDplus + 900s1 Month trial$6.991 Month
linguaArbor
- Premium Monthly$3.991 Month
- Premium Yearly$22.991 Year
Questions
Is 900s free?
Is linguaArbor free?
Do 900s or linguaArbor have ads?
Which is updated more often, 900s or linguaArbor?
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