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Show HN: I moved to Barcelona and outgrew Duolingo, so I built this

https://noentiendo.app
2•moritzme_•57m ago
Hey HN!

Last September I moved to Barcelona for a university exchange and thought it was the perfect moment to finally learn Spanish. I prepared with Duolingo, but as soon as I arrived, it didn't feel right anymore. Here's what I was missing:

I wanted to actually use the language, but in a safe environment. For example, practising ordering in a restaurant in an app before trying it in real life.

When I noticed words I didn't know, I wanted to practise them like in Anki. But copying them over, looking them up in a dictionary and making my own flashcards? I was too lazy. So I built a full dictionary into the app, with native speaker pronunciation and verified example sentences from PONS and wiktionary, so you can save a word the moment you don't understand it, or when you're missing one in a conversation.

That let me practise situations like sending a package at the post office beforehand. Butt to be honest, it worked in some situations, and in others I failed completely. People speak too fast, use different words, and you can't practise every situation. I really needed to train my general listening comprehension, and YouTube seemed like the best place for that. So I added a YouTube integration: you watch videos, get a comprehension question from time to time, and can add any word to your vocabulary with one click.

It's free, with no ads and no premium tier.

You can check it out here: https://noentiendo.app

I'm happy about any feedback and ideas. Maybe you're learning a language right now and think "it would be cool to practise it that way". Let me know! I've already added German, so if you want a specific language supported, just comment.

Reflex: An architecture for building mobile apps with agents

https://shopify.engineering/reflex
1•mustafa01ali•34s ago•0 comments

Macau's Magic Square Stamps

https://www.theguardian.com/science/alexs-adventures-in-numberland/2014/nov/04/macaus-magic-squar...
1•bookofjoe•36s ago•0 comments

Claude Study – circle part of your handwritten notes and ask Claude

https://claude-study-concept.vercel.app/
1•KopikoCappu•2m ago•0 comments

New Vibe Coding App

https://supacode.io
1•ChrisJamesL•6m ago•0 comments

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https://fishtankatlas.com/play/aquarium/
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Places in Tokyo that feel like Night City

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1•mmilanovic4•9m ago•0 comments

Ask HN: What is going on with SMS 2FA?

1•tkdb•10m ago•1 comments

Scala News – October 31st, 2026 Edition

https://www.scalanews.net/Archive/2026/scala_news_2026-10-31.html
1•softinio•10m ago•0 comments

Roko's Basilisk: The most rational idea in the world [video]

https://www.youtube.com/watch?v=A-5SI4KMHt8
1•gessha•11m ago•0 comments

AI Bureaucracy Will Enable Total Surveillance [video]

https://www.youtube.com/watch?v=WT_quXWFh0o
2•verdverm•11m ago•0 comments

Chess, but you can make the board bigger

https://www.willmeye.rs/chess-board-get-bigger
3•willmeyers•11m ago•0 comments

Show HN: Gleanary – a personal knowledge library you can talk to, for macOS

https://gleanary.app/
1•darvid•11m ago•0 comments

Show HN: PinSharing – OSM static maps and geocoding you can cache forever

https://pinsharing.com/
1•pingtest•12m ago•0 comments

Motorola Signature 27 with GrapheneOS support

https://motorolanews.com/motorola-signature-27-2/
3•monneyboi•13m ago•0 comments

OCAP Bounded Authority: Edera's Managed Approach to Object Capabilities

https://edera.dev/stories/ocap-bounded-authority
4•virtio_vixen•13m ago•0 comments

Show HN: RippleMap – Map dependencies across GitHub repositories

https://github.com/Zintrivious/ripplemap
1•Zintrivious•13m ago•0 comments

Show HN: Roblox game idea generator I built with AI as a non-coder

https://robloxideas.com/
1•nickcastrobuild•13m ago•0 comments

Shotoku – local authorization layer for AI agents

https://www.shotoku.dev/
1•stizix•14m ago•0 comments

Show HN: A Modern Agentic LaTeX Editor

https://papilot.ai/
1•cuichen•15m ago•0 comments

Nvidia chips pile up in Hong Kong as China withholds import approval

https://www.reuters.com/world/china/nvidia-chips-pile-up-hong-kong-china-withholds-import-approva...
4•samizdis•17m ago•0 comments

Model Routing with Nvidia's NeMo Switchyard

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1•allessa•19m ago•0 comments

Mistral Studio adds managed agents, workflows and apps

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1•acossta•19m ago•0 comments

Show HN: Stroq – a local audit of what your coding agent did and why

https://github.com/AGGIB/Stroq
2•agybay_07•20m ago•1 comments

Remote AI Jobs

https://nokku.payanai.com/jobs/remote-ai-jobs
1•payanai•20m ago•1 comments

Hiding a Rule Inside Another Model's Weights

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1•jinhonglin•20m ago•0 comments

Building a Multi-Agent System from Scratch: Architecture Patterns

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3•kadharmfn•22m ago•0 comments

Show HN: Securing GrokBot

2•maximelb•23m ago•0 comments

Mercedes Gives Its Cars an AI Upgrade

https://www.wsj.com/cio-journal/mercedes-gives-its-cars-an-ai-upgrade-607daae2
1•thm•23m ago•0 comments

Fonzi – Job board for problems to move humanity forward

https://talent.fonzi.ai/
1•peter_d_sherman•24m ago•0 comments

Show HN: OldTunes – iTunes 4.9 for modern macOS (With GEISS)

https://github.com/rib3ye/oldTunes
1•rib3ye•25m ago•0 comments