Comparison

Universal Library vs Chess worksheet

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

Head to head
About

Universal Library

Features
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This game is a simulation of the universal library described in a short story, "The Library of Babel", by Jorge Luis Borges. The story can be found in several published collections and websites. As described, the Library contains all books of a certain size whose text is any possible sequence of lower-case letters and simple punctuation, even if it is nonsense. This simulation is of an interesting corner of the Library, tiny compared to the Borges vision, but large enough to get lost in. The game is an explorable virtual environment with a few treasure-hunt-like activities leading to books with meaningful content. There is a book that players can erase and rewrite to make into their own "personal vindication", and a book with a practically infinite number of pages. Individual books are searchable. You can mark and return easily to any alcove with an interesting book.

About

Chess worksheet

Features
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Very useful application, which uses the abbreviated algebraic annotation to make notes of the chess matches, replaces the paper sheet in tournaments, and has the advantage of converting the whole annotation into a "pgn" file with the record of the time spent in each move , sends the text pgn by email, the item can also be printed directly from the body of the email. Want to have your own base of matches against the strongest opponents always at hand, to evaluate your mistakes, analyze on chessBase improving your game, or sharing with your friends, download the app! Main features of this version: 1. Note the game in the abbreviated algebraic system. 2. Sharing the match, in the "pgn" format. 3. Sharing the game to other "pgn", StockFish and analysis engines directly from the device. 4. Sending the match via watsApp, email, etc. 5. Time recording on each move 6. Prevents frequent validation annotation errors. 7. Save games 8. List of all saved games

Screenshots

Chess worksheet4 screens

Verdict

The call

The clearest difference is price: Universal Library at Free against Chess worksheet's $1.99. Universal Library also leads on iOS requirement (12.0 vs 14.0). Chess worksheet's advantage is update cadence (every 2 months vs every 40 months) and device support (3 vs 1). On ads and in-app purchases there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Universal Library is free to download; Chess worksheet costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Universal Library ships an update every 40 months, Chess worksheet every 2 months. The most recent releases landed on October 3, 2026 and October 10, 2026 respectively.

Scorecard4 real differences ยท 2 level
Universal Library versus Chess worksheet: the parameters behind the verdict, then further details
ParameterUniversal LibraryChess worksheet
PriceFree โ€” better$1.99
Update frequencyEvery 40 monthsEvery 2 months โ€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPadiPhone, iPad, iPod โ€” better
Requires iOS12.0 โ€” better14.0
Further details โ€” not scored
Size180 MB4 MB
Age rating4++4
DeveloperJonathan MillenDiogenes Souza

In-app purchases

None

Universal Library

No in-app purchases

None

Chess worksheet

No in-app purchases

Questions

Is Universal Library free?
Universal Library is free to download, with no in-app purchases.
Is Chess worksheet free?
Chess worksheet costs $1.99, with no in-app purchases.
Do Universal Library or Chess worksheet have ads?
Neither Universal Library nor Chess worksheet shows ads.
Which is updated more often, Universal Library or Chess worksheet?
Universal Library ships an update every 40 months, and Chess worksheet every 2 months. Most recently, Universal Library was updated on October 3, 2026 and Chess worksheet on October 10, 2026.

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