Appworthy

Chess-Studio

For Serious Chess Players!!

Giordano Vicoli
Download on theApp Store
App Store rating4.7★118 ratings
Price$3.99In-app $0.99–$8.99
Age4+Store age rating
Size249 MBiPhone download
CategoryGames
DeveloperGiordano Vicoli

What we found

Full report

Too little checked to say Store information only. We haven’t analysed this app or read its reviews yet.

Money

  • $3.99 to download · in-app purchases $0.99–$8.99 (2 listed). Monthly plan $0.99 (about $12 a year); yearly plan $8.99.
  • If you subscribe through the store, cancel in iPhone Settings → your name → Subscriptions. Deleting the app doesn’t cancel a subscription.

Not yet tested.

The store currently lists version 4.9.2, updated 2026-10-26.

Preview

Screenshot 1Screenshot 2Screenshot 3Screenshot 4Screenshot 5Screenshot 6Screenshot 7Screenshot 8

Store screenshots supplied by the developer.

About this app

Chess Studio is the first and only application for iPhone and iPad able to manage chess databases and games in PGN format in a complete and efficient way.

Chess Studio is an application designed and built for those players who really want to deepen their knowledge in the field of chess, studying chess regularly and participate in tournaments.

Chess Studio allows you to:

• Read database and games in PGN format (also with extended notation of moves).

• Create, delete and modify folders and databases.

• View games with annotations and textual comments and keep track of the displayed games.

• Use a double chessboard on the same screen for better game analysis.…

From the developer’s store description.

For developers and the curious

The full report

The evidence, sources, measurements and versions behind every label above.

Findings and evidence

Not yet tested
Not yet tested. No analysis has been published for this app. A missing label is not a clean bill of health.

What reviewers report

No review coverage

No review analysis published for this app.

Measurements

4 measured · 4 not assessed

“Not assessed” means we could not measure it. It is never a zero and never a pass.

From store data and reviews

Developer replies to reviews
Replies to fewer than 1 review in 20
Price in the store description
The store description doesn’t list prices (most don’t)
Cancelling, in the store description
The store description doesn’t say how to cancel (most don’t)
Themes reported by reviewers
Not assessed
This app's reviews have not been assessed yet
Five-star share of ratings
80–89% five-star
Arithmetic on the stores' own published rating counts. It says nothing about why the ratings fall where they do.

In the app package we scanned

No package has been scanned for this app, so nothing is published about what it ships. That is an absence of evidence, not a finding.

Sensitive permissions
Not assessed
No package has been scanned for this app
Analytics or tracking SDKs in the scanned package
Not assessed
No package has been scanned for this app
Advertising SDKs in the scanned package
Not assessed
No package has been scanned for this app
How we know

Supporting measurements: not a complete list of possible harms or positives. Measurement vocabulary 1.4 · how these are measured

Versions and dates analysed

Not yet tested

Not yet tested. No analysis has been run for this app, so there is no version or date to report.

Store update history

Each store’s release notes, as the developer wrote them. They are the developer’s words, not ours.

App Store

Version 4.9.2 · 2026-10-26
- IN THIS RELEASE (4.9.2) • Added support for multiple windows on iPad, allowing you to use multiple Chess Studio sessions simultaneously. • Added the option to automatically rotate the chessboard based on which player's turn it is to move. • Fixed an issue in the game training section. • Improvements to the iCloud Drive section. • Minor bug fixes, general improvements and optimizations. - MAIN FEATURES INTRODUCED IN THE LATEST RELEASES • The new Stockfish 19 engine has been integrated, featuring the new Neural Network support (SFNNv16). According to the authors, Stockfish 19 shows consistent performance improvements, with an Elo gain of up to 44 points. • A Unique online Database with…

Shortened here; the full notes are on the store listing.

Assessment record

Status
Not yet tested
App identifier
chess-studio
Sources used
None recorded
Reviews read
None recorded
Package examined
No package scan
Human inspection
Not completed
How we know
Measurement vocabulary
1.4

Store facts

App Store

What the stores publish. Store ratings are the stores’ numbers, not Appworthy’s, and are never averaged across stores.

App Store

Store rating
4.71 ★ · 118 ratings
Version
4.9.2
Updated
26 Oct 2026
Price
$3.99
Age rating
4+
Size
249 MB
Open in App Store
Developer
Giordano Vicoli
Category
Games
Listing price
$3.99

Purchases the store lists

 What this app sells

From the store listing. Billing terms are read from each purchase’s name — the stores don’t publish them — so treat them as a strong hint, not a disclosure.

Subscriptions2
Monthly Premium SubscriptionMonthly$0.99
Yearly Premium SubscriptionYearly$8.99

Method and limits

What this report can and cannot show

What a missing label means

Not yet tested. No analysis has been published for this app, so there is no method to describe for it yet. A missing label is not a clean bill of health: it means nothing has been read, not that nothing is wrong.

Limits of this report

  • A package scan is static. It identifies code and text in one Android build. It does not measure a live ad session, test a deletion request, or count the steps needed to cancel.
  • Reviews keep their sample. A review-only charge shows distinct reviewers, the share and the sample size, and is published only once it clears that label’s published threshold. Calibration labels are machine-drafted and not yet confirmed by a person.
  • Not assessed is a state. It is never a zero and never a pass.
  • A missing label is not a clean bill of health. It means the evidence did not support one, not that the app is problem-free.
Not yet human-reviewed. A human review gives an app hands-on, recorded measurements. None has been run for this app. Hands-on inspections are not yet open.
Review thresholds Read the methodology For developers

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