Comparison

Y Combinator vs alphaXiv

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

Head to head
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

About

alphaXiv

This app helps researchers stay updated with the latest AI studies from arXiv. It offers AI-powered summaries, literature reviews, and visual explanations of complex papers. Users can also annotate papers and track their research interests.

Highlights
  • Trending research feed
  • AI-powered literature reviews
  • Interactive paper reader with notes
  • AI Visual Blogs for paper explanations
  • Personalized research recommendations
Read full description

alphaXiv offers a suite of AI features built on top of arXiv that help you keep up with and quickly understand the latest research. Trending Feed Discover the most relevant AI research, curated by our community of hundreds of thousands of readers each week. See papers tailored to your specific research interests with quick informative blurbs to help you decide which papers to delve deeper. Library Bookmark favorite papers, keep track of your research and organize your work. Paper is missing on alphaXiv? Upload it into library and gain access to the same assistant and AI Overviews as the publically available papers. AI Assistant Understand the latest AI research with AI. Ask questions like 'What are the latest breakthroughs in RL fine-tuning?' and get comprehensive literature reviews with trending papers automatically included. Paper Reader View papers with highlights, personal notes, and quick access to our AI assistant. Come back anytime to a paper to see what parts you marked as important, any notes that you left for yourself, and your conversations with our assistant. AI Visual Blogs Turn any complex paper into clear visual explanations. Generate beautiful research blogs with figures, equations, and key insights from the paper with just one click. Join hundreds of thousands of weekly readers on alphaXiv to transform your research output. Whether you’re a curious undergrad or an applied research scientist, reading papers won’t ever feel the same again.

Screenshots

Y Combinator3 screens
alphaXiv4 screens

Verdict

The call

The clearest difference is review sentiment: alphaXiv at 100% against Y Combinator's 50%. alphaXiv also leads on rating (4.7 vs 4.3) and update cadence (every 4 days vs every 3 weeks). On price, ratings volume, 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

alphaXiv holds the better App Store score, 4.7 against 4.3. Both are backed by a comparable volume of ratings — 26 and 17 respectively. Written reviews point the same way: 50% of Y Combinator's written reviews are positive against 100% of alphaXiv's.

UpkeepUpdate frequency

Y Combinator ships an update every 3 weeks, alphaXiv every 4 days. The most recent releases landed on September 18, 2026 and September 14, 2026 respectively.

Scorecard3 real differences · 7 level
Y Combinator versus alphaXiv: the parameters behind the verdict, then further details
ParameterY CombinatoralphaXiv
PriceFreeFree
Rating4.3 (26 ratings)4.7 (17 ratings) — better
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings26 — better17
Update frequencyEvery 3 weeksEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.4 — better17.0
Further details — not scored
Size84 MB73 MB
Age rating4+12+
DeveloperY CombinatoralphaXiv Inc.

Customer experience

Y Combinator

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

alphaXiv

All ratings17 ratings
Positive94.1%
Neutral0.0%
Negative5.9%
Written reviews8 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Y Combinator

No in-app purchases

None

alphaXiv

No in-app purchases

Questions

Is Y Combinator free?
Y Combinator is free to download, with no in-app purchases.
Is alphaXiv free?
alphaXiv is free to download, with no in-app purchases.
Which has better reviews, Y Combinator or alphaXiv?
alphaXiv is rated higher. Y Combinator averages 4.3 out of 5 from 26 ratings, while alphaXiv averages 4.7 from 17 ratings.
Do Y Combinator or alphaXiv have ads?
Neither Y Combinator nor alphaXiv shows ads.
Which is updated more often, Y Combinator or alphaXiv?
Y Combinator ships an update every 3 weeks, and alphaXiv every 4 days. Most recently, Y Combinator was updated on September 18, 2026 and alphaXiv on September 14, 2026.

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