EdTech Discovery
Argus

Named after the hundred-eyed watchman of Greek myth, Argus watches the education landscape: spotting new opportunities, pressure-testing the ventures we're building, and tracing every read back to the real-world signals behind it.

Updated Jul 13, 2026 · 8 ideas · 5760 signals

Signals

The evidence library: the raw signals the pipeline is watching across the education ecosystem. Every idea is built from these.

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Reviews: Duolingo

[1/5] Everything

I just finished 3 daily quests but it didn’t even give me a single prize or whatever its called. Are we serious right now? This isn’t learning new language its literally learning how to rage bate. Duolingo is not amazing, it kicks me out of the app and I have to restart the whole lesson and I don’t have like infinite life! OMG bro what is wrong with this app? It used to be better but now its just a random app that doesn’t work correctly and makes you rage bate. Even when I get the questions correct 5 in a row, 10 in a row, finish the WHOLE lesson. It didn’t even give me a single life? What is wrong? Like really I have to keep repeating. This is rage bating. I wish there was a better app. I want to stop using this app I feel like I’m stupid using this app. Also it wouldn’t even teach me real language. I searched it up in translate app and the sentence doesn’t make sense in Duolingo! Please give up REAL words not fake. Also I had 25 lives, and I got 10 correct in a ROW but it didn’t give

App Store review · no public link
need
Reviews: Duolingo

[5/5] The best class you should join!

This app making me feel happy about this am learning Spanish and it’s helping me more now even this help if you make a mistake we go over it and try again and tells me what’s wrong what’s right this is a great app thank you!

App Store review · no public link
need
Reviews: Duolingo

[5/5] Bien

Muy bueno y me gustó para mi pronunciación

App Store review · no public link
need
Reviews: Duolingo

[5/5] Duolingo’s review

Duolingo helps me a lot but I’m just 11 and I don’t have money to pay for the no adds and I like playing it helps me learn faster than ever and I’m also very happy about the way I am learning so fast

App Store review · no public link
need
Reviews: Duolingo

[1/5] They’ll charge you fraudulently

When you sign up, you will be led to believe that the subscription is managed through the App Store, and then the subscription will not show up in your App Store subscriptions. They claimed to notify you before the charge hits your card, they actually claim they’ll let you know twice, they do not do that. DECEPTIVE!

App Store review · no public link
need
Reviews: Duolingo

[2/5] Don’t working

If you need an explanation of the rule, then for some reason it can't connect to the server to get this answer.

App Store review · no public link
need
Reviews: Duolingo

[3/5] Fun but what

Cool that I pay for yearly and still get constantly pestered in the app to spend more money. This is behavior I’d expect from a free app. We are all sick of this behavior, stop normalizing it, do better.

App Store review · no public link
need
Reviews: Duolingo

[5/5] So far so good

I’m Hispanic and didn’t learn Spanish growing up, I may just have a chance. Really grateful for this app and really hoping this helps.

App Store review · no public link
need
Reviews: Duolingo

[1/5] Scam app

Do not use. Many in-app glitches that take your money and take your timer boosts for in-app game play. You can follow instructions, provide evidence, screen recordings, photos. No one responds but an auto reply. Even for “Max” paid subscriptions. Its all AI. No humans working here. Glitchs in AI voice recognition make it impossible to finish game play and effect competitive game play negatively. I liken it to Candy Crush in app scams. There are no refunds. Read Reddit. I recommend Babel for your language app. This is just a useless no longer fun game.

App Store review · no public link
need
Reviews: Duolingo

[4/5] Really good

It does really good to teach you things quickly for free or at least for a cheap price, but the only problem that I see is that it teaches you things but it doesn’t make you understand them

App Store review · no public link
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