Comparison

GuiKey vs PaperCrush

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

Head to head
About

GuiKey

Features
Read full description

A free keyboard application to write in the GΗ€ui orthographic system. This is a free keyboard application for speakers and users of the GΗ€ui language in the Kalahari Basin area, Botswana. This keyboard provides your iPhone with features that are necessary for writing in the GΗ€ui orthographic system. ==main features== - enables the input of five click consonant symbols and three tone markers - can also be used as an ordinary QWERTY keyboard

About

PaperCrush

Discover and organize academic papers with a swipe-based interface. AI translation helps overcome language barriers, while trending sections highlight popular research. Tailor your feed to specific academic categories.

Highlights
  • Swipe interface for paper discovery
  • AI translation of titles and abstracts
  • Organize liked papers
  • View trending research
  • Detailed paper view with LaTeX support
  • Select custom academic categories
Features
Read full description

This app is for researchers and students who follow the latest academic papers, especially preprints submitted to arXiv. With an intuitive Tinder-like swipe interface, you can "Like" or "Skip" new papers. 【Key Features】 * **Paper Feed**: Receive the latest papers in categories tailored to your interests daily. Easily organize them with swipes. * **AI Translation**: AI translates paper titles and abstracts into your specified language (e.g., English). Understand content without language barriers. * **Like List**: Manage liked papers in a list. You can also search, filter by category, and manage read/unread status. * **Trending**: Check papers gaining attention from other users in a ranking format. Don't miss research trends in your field. * **Detailed View**: Beautifully displays LaTeX formulas. Links to PDF and web pages are also included. * **Category Selection**: Select your areas of interest from a wide range of arXiv categories, including Computer Science, Physics, and Mathematics. Make your daily paper check faster and smarter. We support your research activities. (Data provided by: arXiv)

Screenshots

GuiKey1 screens
PaperCrush3 screens

Verdict

The call

The clearest difference is ads: GuiKey at none against PaperCrush's shown. PaperCrush's advantage is update cadence (daily vs every 5 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

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

UpkeepUpdate frequency

GuiKey ships an update every 5 months, PaperCrush daily. The most recent releases landed on November 8, 2026 and November 5, 2026 respectively.

Scorecard2 real differences Β· 6 level
GuiKey versus PaperCrush: the parameters behind the verdict, then further details
ParameterGuiKeyPaperCrush
PriceFreeFree
Positive reviewsβ€”66.7% of reviews
Update frequencyEvery 5 monthsDaily β€” better
AdsNo β€” betterYes
In-app purchasesNoNo
Monetizationβ€”Ad-supported
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.117 β€” better
Further details β€” not scored
Size1 MB13 MB
Age rating4+4+
DeveloperKanji KatoNaoki Takahashi

In-app purchases

None

GuiKey

No in-app purchases

None

PaperCrush

No in-app purchases

Questions

Is GuiKey free?
GuiKey is free to download, with no in-app purchases.
Is PaperCrush free?
PaperCrush is free to download, with no in-app purchases.
Do GuiKey or PaperCrush have ads?
PaperCrush shows ads; GuiKey does not.
Which is updated more often, GuiKey or PaperCrush?
GuiKey ships an update every 5 months, and PaperCrush daily. Most recently, GuiKey was updated on November 8, 2026 and PaperCrush on November 5, 2026.

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