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

[5/5] Duolingo

This app helped me so much on learning japenese you should definetely try it

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Reviews: Duolingo

[5/5] Duolingo

5 estrellas esta muy buena la app y aprendo mucho

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Reviews: Duolingo

[3/5] OK, I Guess

I guess it's good to start somewhere, but I noticed that there are a lot of mistakes in the app. Sentences which I know are correct keep getting marked as incorrect only because the app doesn't hear you correctly. You check with other sources and it is confirmed I'm saying it correctly. The app is just not very accurate. The only ads I ever see are for Duolingo. The app you are already using. And they keep pushing you to subscribe, and telling you that that way you can remove the ads. Seems like mafia tactics. Free version is OK for now. Don't think I'll ever be paying for it just because of how dirty I think their tactics are.

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Reviews: Duolingo

[5/5] THE BEST APP

this is fire. its fun, and helps yu a lot with anything yu want to learn

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Reviews: Duolingo

[5/5] Best

It teaches me a lot stuff

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Reviews: Duolingo

[5/5] Great app

This app has helped my daughter learn English very well we just moved from Italy

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Reviews: Duolingo

[5/5] Duolingo

Good and fun 😄

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Reviews: Duolingo

[1/5] Stop with the streak notifications

I know I missed a day

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Reviews: Duolingo

[5/5] The best app

This app has taught me so much about Spanish words and pronunciation. Thank you

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Reviews: Quizlet

[1/5] deleted study set

They deleted my study set and refuse to work with me at all to recover the study set or explain why it was deleted. I spent hours creating this study set to prepare for my college exam.

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Reviews: Quizlet

[3/5] Pay to use

This app used to be mostly free but to even finish learning a card set you have to pay for it. I get you want to make more money but to not even let someone finish a set is shameful. As someone who’s used Quizlet for over 6 years, the paying for EVERYTHING is ridiculous.

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Reviews: Quizlet

[3/5] Okay - could be less clunky

I like the app generally, and have found it useful . I like how the free responsequizzes do not need to be exactly worded to match the original answer, it has some sort of AI to see if they’re close. However, editing sets is clunky. If there’s a card I want to edit in a large set, I can’t just hold down on the card while it’s on my screen- I need to go to “Edit Set” which loses the position of my card, and has no alphabetical sorting to help find it. This company has been around for years, so I’m judging more harshly. I would consider swapping to another app if it had the intelligent answer checking and better card editing, as I generally add to my sets frequently and editing is more work than it should be.

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Reviews: Quizlet

[1/5] updates are not helpful

this used to be my favorite app for studying. not only did they integrate AI poorly; it doesn’t even help, but they also changed features that were helpful. i hate the updates. let me start a card even if i’m on an answer streak!!! like what is the point of having a feature on a notecard app if i can’t even “set aside” a notecard. so annoying.

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Reviews: Quizlet

[1/5] Stop the upselling

When I’m on the go or indispose I just wanna study but on the mobile app they do this up selling for a free trial the better better benefits on the app. I don’t want that. I just wanna review flashcards that is it but due to all the up selling studying on the Mobile app is very difficult.

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Reviews: Quizlet

[2/5] New Payment

Shi so gay i cant even study without being hit by the gayest prices ever. i mean why should i have to pay to study.

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Reviews: Quizlet

[1/5] AI slop

Use anki

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Reviews: Quizlet

[2/5] Randomly saying incorrect

Why 😡😡😡😡😡😡

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Reviews: Quizlet

[5/5] Excellent

A fantastic and affordable resource for learning and studying.

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Reviews: Quizlet

[5/5] Money hungry

good app just stop being so money hungry

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Reviews: Quizlet

[2/5] Huh?

This app makes some assumptions about how you expect it to work. I suppose that if you fight with it for a while you will learn how to get along with it, but I’m starting off baffled.

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Reviews: Quizlet

[1/5] Annoying

I don’t know why, but every minute it makes me hold a button to prove I’m not a robot. I can’t even use the app.

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Reviews: Quizlet

[5/5] great

aced. my. final. the free version is so great and love it!

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Reviews: Quizlet

[5/5] Wow!

Super helpful for helping me to recall what I’ve studied

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Reviews: Quizlet

[3/5] Disappointment

The app lacks a clear structure. Why can’t I see the modules I created right away when I open the app? Why doesn’t the app send notifications to remind me to practise? Why is there no reward system or visible progress tracking? Why is access to my own modules so complicated and full of unnecessary clicks? There is no streak, no progress bar, no clear learning path — nothing that helps me stay consistent. Look at Duolingo: it may not teach much deeply, but at least it has a system that keeps users engaged and helps them build a habit. I wish Quizlet helped users move vocabulary from short-term to long-term memory by adding a clearer learning structure, progress tracking, practice reminders, and maybe even random notifications with words or expressions from the modules they have practised recently. I don’t necessarily need heavy gamification. I need a clear structure that actually supports learning.

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Reviews: Quizlet

[5/5] Beats AI

Beats chat gbt

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Reviews: Google Classroom

[3/5] One issue

Ok so what bugs me the most is that whenever you get an email to become a teacher and you click accept link it’ll just send you to the app not doing anything and I’ve tried leaving the class and rejoining it still doesn’t work please fix this

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Reviews: Google Classroom

[5/5] Best app

Way better than infinite campus

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Reviews: Google Classroom

[1/5] #BRINGVALKOBACK

Bring Valko back to Love & Deepspace!

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Reviews: Google Classroom

[1/5] Bring Back Valko

I’m here for love and deep space and I heard this was the place to rant. GOOGLE DO SOMETHING

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Reviews: Google Classroom

[1/5] #Valko

Yeah not only genshin players, as a lover of Valko. BRING BACK VALKOOO #BringBackValko #WeWantValko #JusticeforValko #KeepValkoAlive

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Reviews: Google Classroom

[1/5] BRING VALKO BACK

I want you all to know that INFOLD (LADS company) ARE SCUMMY JERKS. GIVE ME MY WOLF-MAN!! HOWL AT THE MOON. 💚

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Reviews: Google Classroom

[2/5] BRING VALKO BACK

Google help!!!!! the crazy love and deepspace fan femcels managed to remove a new character my husband and my dog Valko out of the game HELP GET THEM DRAG THEM 😭😭😢

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Reviews: Google Classroom

[1/5] GIVE VALKO BACK!!!!

INFOLD I SWEAR YOU DONT LISTEN TO US GLOBAL PLAYERS. We want our Valko back…. WTH he do to u anyways

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Reviews: Google Classroom

[2/5] Love Google Classroom but Infold Games give us back Valko

Google Classroom was great for me in Highschool easy to manage platform BUT INFOLD GAMES RETURN TO US VALKO

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Reviews: Google Classroom

[1/5] #BRINGVALKOBACK

BRING BACK VALKO INFOLD 🫩

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Reviews: Google Classroom

[1/5] #SAVEVALKO

Please speak up about the Valko situation! #SAVEVALKO

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Reviews: Google Classroom

[1/5] no

this app is terrible and im in a heatwave this is terrible

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Reviews: Google Classroom

[1/5] HOLY SLOP

Nothing loads, i would highly recommend you dont download this app unless you want viruses and your computer to take forever to load.

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Reviews: Google Classroom

[1/5] BRING VALKO BACK

inflop

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Reviews: Google Classroom

[1/5] BRIBG BACK VALKO

I MISS VALKO BRING HIM BACK VAKP VALKO VALKO VALKO

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Reviews: Khan Academy

[5/5] Thankfully

Great ❣️🧎🏽‍♂️‍➡️🙏🏽

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Reviews: Khan Academy

[5/5] Amazing app!

Khan academy has been a great studying app for me!

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Reviews: Khan Academy

[5/5] Great!

I kind of hated khan academy at times, but it is very helpful to me because it finds my level and makes things simpler. It has drawing stuff so I don’t need actual paper, and a video to show how it’s done. Thanks Khan academy! Also I find it satisfying when I move to another level.

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Reviews: Khan Academy

[5/5] Redeeming my old education

I am going back to take Algebra for fun, but also to help my own kids. It would have been amazing to have had this resource available when I was taking it for the first time. I am so appreciative of the thorough and clear teaching, along with the interface, usability, and motivation-enhancing setup. Thank you!

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Reviews: Khan Academy

[1/5] I hate it

I hate it

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Reviews: Khan Academy

[1/5] Boring

No creativity

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Reviews: Khan Academy

[1/5] So bad

Makes my kids cry. Every time they click it does the wrong number don’t add

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Reviews: Khan Academy

[5/5] Good

Helps me learn alot

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Reviews: Khan Academy

[1/5] It won’T let me choose student as my roleeeeee

They keep making me as a tutor or a teacher even though I’m using my school account for STUDENTS! I’m very annoyed by this and I don’t understand what I can possibly do to change that. Ughhh

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Reviews: Khan Academy

[5/5] Good learning

It’s ALWAYS GOOD!

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