Comparison

Top Hat vs Y Combinator

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Top Hat

Enhance your learning experience with interactive resources, in-class participation tools, and dynamic digital textbooks. Engage with professors and peers, and test your knowledge with quizzes and polls to improve comprehension and retention.

Highlights
  • Follow lecture slides on your device
  • In-class response system
  • In-app discussions with peers and professors
  • Dynamic, interactive digital textbooks
  • Take polls and quizzes
  • Access graded and non-graded homework
Features
Currently charting
Read full description

Top Hat is the perfect companion app to our comprehensive assessment platform that helps you learn better before, during and after class. Top Hat makes learning fun and engaging (seriously!) and sets you up for success, helping you connect with your professors, your peers and the content you’re learning in and out of the classroom. Here’s what Top Hat offers you: Compelling resources, delivered on your smartphone or laptop: • Follow your prof’s lecture slides on your own device • Contribute in class with an easy-to-use response system that’s always with you • Participate with your profs and peers using in-app discussions Content tailored to your course: • Experience dynamic, interactive textbooks loaded up with images, videos, audio clips and more • Read your digital materials from anywhere and keep them forever Quizzes, tests and polls that improve learning comprehension: • Challenge yourself by taking polls and quizzes on your own devices • Improve your knowledge retention with interactive assessment elements • Check for gaps in your understanding with graded and non-graded homework and short quizzes Thanks for using Top Hat. As you experience the app, we’d love to get your feedback: support@tophat.com or follow us on Instagram, Twitter or Facebook @TopHat

About

Y Combinator

Access Y Combinator's extensive library of startup content, including YouTube videos, podcasts, and essays. It also serves as a mobile client for Hacker News, offering the latest startup news for founders and programmers. Additional features are available for YC-funded founders.

Highlights
  • Organized YC YouTube videos
  • Startup School content
  • On-the-go podcast listening
  • Hacker News mobile client
  • YC founder-only knowledge base
  • Access Bookface feed and messages
Read full description

The Y Combinator App is your home for all things YC. It organizes all of YC's YouTube videos, podcasts, and essays. It's also a mobile client for Hacker News, the best startup news source for programmers and technical founders. For founders who have been funded by YC, it has additional features. For everyone: - Organizes all of YC's YouTube videos - the world's best content on startups - All of the content from Startup School - Listen to YC podcasts on the go - Read Hacker News - the best news source for programmers and technical founders For YC founders: - Access the Bookface feed - Access Bookface messages - Read the YC founder-only knowledge base

Screenshots

Top Hat4 screens
Y Combinator3 screens

Verdict

The call

The clearest difference is review sentiment: Y Combinator at 50% against Top Hat's 14%. Top Hat's advantage is ratings volume (23K vs 26) and rating (4.6 vs 4.3). On price, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Top Hat holds the better App Store score, 4.6 against 4.3. That said, the two scores are not equally well evidenced: Top Hat has 23K ratings behind it against 26, so its average is the more settled of the two. Written reviews complicate that: 14% of Top Hat's written reviews are positive against 50% of Y Combinator's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Top Hat ships an update fortnightly, Y Combinator every 3 weeks. The most recent releases landed on September 24, 2026 and September 18, 2026 respectively.

Scorecard4 real differences · 7 level
Top Hat versus Y Combinator: the parameters behind the verdict, then further details
ParameterTop HatY Combinator
PriceFreeFree
Rating4.6 (23K ratings) — better4.3 (26 ratings)
Positive reviews14.4% of reviews50.0% of reviews — better
Number of ratings23K — better26
Update frequencyFortnightly — betterEvery 3 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
Best chart rank#125 — better—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.016.4 — better
Further details — not scored
Size162 MB84 MB
Age rating4+4+
DeveloperTop Hat MonocleY Combinator

Customer experience

Top Hat

All ratings22,776 ratings
Positive92.9%
Neutral3.3%
Negative3.8%
Written reviews195 reviews
Positive14.4%
Neutral8.2%
Negative77.4%

Y Combinator

All ratings26 ratings
Positive80.8%
Neutral3.8%
Negative15.4%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Bugs and requests

Top Hat

Reported bugs

3 issues
  • Answers not registering correctly
  • Slides not loading properly on mobile devices
  • Inconsistent performance across platforms

Requested features

3 requests
  • Add page numbers and search functionality to ebooks
  • Improve syncing between mobile and web versions
  • Allow more flexible location settings for attendance

Y Combinator

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Top Hat

No in-app purchases

None

Y Combinator

No in-app purchases

Questions

Is Top Hat free?
Top Hat is free to download, with no in-app purchases.
Is Y Combinator free?
Y Combinator is free to download, with no in-app purchases.
Which has better reviews, Top Hat or Y Combinator?
Top Hat is rated higher. Top Hat averages 4.6 out of 5 from 23K ratings, while Y Combinator averages 4.3 from 26 ratings.
Do Top Hat or Y Combinator have ads?
Neither Top Hat nor Y Combinator shows ads.
Which is updated more often, Top Hat or Y Combinator?
Top Hat ships an update fortnightly, and Y Combinator every 3 weeks. Most recently, Top Hat was updated on September 24, 2026 and Y Combinator on September 18, 2026.

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