Shogi Lab Downloads & RevenueShogi Lab: Sunfish Engine · App Store
Not in any tracked top chart right now.
Updated 5 Nov 2026 · rankings refresh through the day
Developerkoji ozono
CategoryGames
PriceFree
Released
Rating★ 2.8 (4)
Version2.0.6
Age rating4+
First seen by us
13 Oct 2026
13 Oct 2026Installs (est.)100+ worldwide
Shogi Lab: Sunfish Engine update history & changes
Last change · 7 events since 1 Jan 2026Full timeline ↓✏️Description updated✏️New iPad screenshots📦Updated to version 2.0.6🆕First spotted by AppInsider📦Version 2.0.5🆕Released on the App Store
Full timeline · 7 events
- ✏️Shogi Lab: Sunfish Engine: description updated· JP
- ✏️Shogi Lab: Sunfish Engine: new iPad screenshots· JP
- ✏️Shogi Lab: Sunfish Engine: new screenshots7 screenshots (was 5) · JP
- 📦Shogi Lab: Sunfish Engine updated to version 2.0.6New Features & Improvements
- Lishogi Spectating Feature Added
Added a feature to spectate Lishogi games within the app.
- Online Feature Renamed & UI Cleanup
Renamed the 'Online' tab to 'Network Play' to better reflect its actual use. Changed 'Quick Match' to 'Simultaneous Match' and added a note explaining that players must press at the same time as their opponent. Organized the display of rankings and other elements, and unified the design of the invite button.
Bug Fixes
- History Processing for Resigned Games
Fixed an issue where resigned games were not saved correctly as 'Finished,' allowing them to be analyzed from the history screen. Also fixed the position restoration in the analysis screen.
- Operation Restriction During Analysis/Replay
Disabled the 'Resign' button during analysis and replay modes to prevent accidental taps.
Other
- Other minor fixes and improvements.… more - 🆕Shogi Lab: Sunfish Engine first spotted by AppInsiderJapan (found via developer)
- 📦Shogi Lab: Sunfish Engine version 2.0.5- Added piece movement animations (smooth slide)
- Adjusted the move sound to play at the same time as the animation finishes
- Redesigned the matching screen with a simpler design
- Fixed an issue where Upgrade briefly appears when launching the Pro version
- Improved the response speed of the AI proxy button… more - 🆕Shogi Lab: Sunfish Engine released on the App Store
Collected from the stores by AppInsider since we first spotted the app. Dates are when we saw each change.
Rating
2.8 ★
4 ratings
Measured
Shogi Lab: Sunfish Engine on the App Store
App details
App ID
6757245157
Publisher
koji ozono
On the store since
Jan 2026
Under a year
Minimum OS
iOS 17.6+
iPhone XS and later
Devices
iPhone · iPad
Universal purchase
Content rating
4+
Languages
2
EN JA
Size
86 MB
Also listed in
Board, Strategy
Shogi Lab: Sunfish Engine downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. App Store downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 30 countries.
| Country | Charts | Rank |
|---|---|---|
| Not charting right now. | ||
Ratings
App Store, worldwide.
Rating
2.8 ★
4 ratings
Measured
Ratings
4
Measured
Review momentum
ⓘ How we measure thisNew ratings a week
under 1
4-week average
Lifetime rating
2.8★
recent stars not readable yet: new ratings are a tiny share of the total
Review momentum
20/100
faster than 0% of Games apps
Review momentum (0-100) blends how fast the app collects ratings compared with other apps in its category (60%), whether that pace is speeding up (25%) and what recent raters give it (15%; recent stars well below lifetime pull it down). Ratings counts are read daily. A jump usually means a launch, a feature, ads or a new review prompt.
About Shogi Lab: Sunfish Engine
A shogi app equipped with the Sunfish4 engine. With easy-to-read piece designs and calm operation, you can play comfortably from the opening to the endgame. It features in-game evaluation checking, as well as game record playback and analysis, allowing you to complete everything from playing to analyzing within the app. Additionally, a feature to spectate Lishogi games within the app has been added. Network play (simultaneous match/URL invite) and offline CPU matches are also available.
Key Features
• Lishogi Spectating: Spectate Lishogi games within the app.
• In-game Analysis (During Match): View evaluation graphs and scores.
• Thinking Time Visualization (During Match): Displays thinking time on the game record. Long moves are highlighted in red (top 5%) / yellow (top 15%).
• Review Points (During Match / Analysis): Highlights moves where the evaluation changed significantly.
• Game Record Analysis (Analysis): Review past records with playback, fast-forward, and rewind.
• Game Record Import (Analysis): Load KIF / CSA format records, supporting playback and analysis.
• Position Jump (Analysis): Instantly jump to any position in the game record.
• Pause & Resume (During Match): Pause a game and resume it later.
• CPU Strength Adjustment (During Match): Adjust difficulty from practice to serious matches.
• Choose First/Second Player (At Start): Play as Black or White.
• Undo Move (During Match): Redo the last move.
• Legal Move Display (During Match): Shows possible moves to prevent mistakes.
• Haptics & Animations (Controls): Smooth operation feel.
• Network Play: Supports matches via simultaneous match or URL invite. Offline CPU matches and local 2-player matches are also available.
* The spectating feature in this app displays web pages from the shogi site 'Lishogi (lishogi.org)'.
Key Features
• Lishogi Spectating: Spectate Lishogi games within the app.
• In-game Analysis (During Match): View evaluation graphs and scores.
• Thinking Time Visualization (During Match): Displays thinking time on the game record. Long moves are highlighted in red (top 5%) / yellow (top 15%).
• Review Points (During Match / Analysis): Highlights moves where the evaluation changed significantly.
• Game Record Analysis (Analysis): Review past records with playback, fast-forward, and rewind.
• Game Record Import (Analysis): Load KIF / CSA format records, supporting playback and analysis.
• Position Jump (Analysis): Instantly jump to any position in the game record.
• Pause & Resume (During Match): Pause a game and resume it later.
• CPU Strength Adjustment (During Match): Adjust difficulty from practice to serious matches.
• Choose First/Second Player (At Start): Play as Black or White.
• Undo Move (During Match): Redo the last move.
• Legal Move Display (During Match): Shows possible moves to prevent mistakes.
• Haptics & Animations (Controls): Smooth operation feel.
• Network Play: Supports matches via simultaneous match or URL invite. Offline CPU matches and local 2-player matches are also available.
* The spectating feature in this app displays web pages from the shogi site 'Lishogi (lishogi.org)'.
Latest updates
2.0.6
New Features & Improvements
- Lishogi Spectating Feature Added
Added a feature to spectate Lishogi games within the app.
- Online Feature Renamed & UI Cleanup
Renamed the 'Online' tab to 'Network Play' to better reflect its actual use. Changed 'Quick Match' to 'Simultaneous Match' and added a note explaining that players must press at the same time as their opponent. Organized the display of rankings and other elements, and unified the design of the invite button.
Bug Fixes
- History Processing for Resigned Games
Fixed an issue where resigned games were not saved correctly as 'Finished,' allowing them to be analyzed from the history screen. Also fixed the position restoration in the analysis screen.
- Operation Restriction During Analysis/Replay
Disabled the 'Resign' button during analysis and replay modes to prevent accidental taps.
Other
- Other minor fixes and improvements.
2.0.5
- Added piece movement animations (smooth slide)
- Adjusted the move sound to play at the same time as the animation finishes
- Redesigned the matching screen with a simpler design
- Fixed an issue where Upgrade briefly appears when launching the Pro version
- Improved the response speed of the AI proxy button
Store changes
What Shogi Lab: Sunfish Engine changed on its store page: name, icon, screenshots, price, size, languages, requirements.
Description updated
New iPad screenshots
New screenshots
7 screenshots (was 5)
