Chess Coach Pro (KemigoGames / Igor Zelka) review: scores and evidence
Chess Coach Pro is an offline, one-off-purchase app: 4,200-4,500 themed puzzles, opening traps, 16-30 openings and an endgame section. It analyses no games and does not track the player’s progress.
Read on August 30, 2026 from the service’s public pages — every score cites the page read.
Overall score
2.1/ 10
Rank
88=/ 128
Languages
8
Listed price
$14.99 (one-off purchase, App Store) ≈ €13.79; €14.49 on Google Play
What the service is
Chess Coach Pro is a mobile puzzle app published under the KemigoGames brand by Igor Zelka, a sole trader ("© 2019 PE Zelka I.S." on the App Store) whose Google Play listing gives an address in Korolyov, Moscow region (Russia). The App Store version history starts with version 1.2 on 4 January 2020; the original release date is not shown. The app offers tactical puzzles sorted by theme (4,500 announced on the App Store, 4,200 on Google Play) with hand-picked difficulty, a "Debut" section of 16 to 30 openings depending on the listing, a "Traps in the opening" section, an "Endgame" section and checkmate sections (vertical, diagonal). It works fully offline, with no ads, no in-app purchase and no subscription: a one-off purchase at $14.99 on the App Store and €14.49 on Google Play, with family sharing. Google Play shows 4.5/5 from about 2,450 reviews and more than 10,000 downloads; the App Store, 4/5 from 4 ratings. The interface comes in eight languages (English, French, German, Italian, Norwegian, Portuguese, Russian, Spanish). Chess Coach Pro neither imports nor analyses any game, does not track the player’s progress, has no adaptive rating, no spaced repetition, no play against an opponent and no web version; the publisher collects no data.
Activity history
- 2026-08Version 1.14 on the App Store in late August 2026 ("5 days ago" when read on 1 September 2026): "fixes and improvements", no further detail.
- 2026-07Google Play listing updated on 8 July 2026; it shows 4.5/5 from about 2,450 reviews and more than 10,000 downloads.
- 2024-02Version 1.13 on the App Store on 6 February 2024 (fixes and improvements).
- 2023-10Version 1.12 on 3 October 2023: new "Vertical mate" section.
- 2021-11Version 1.11 on 10 November 2021: adds the Caro-Kann Classical Variation with 6.h4; version 1.9 of 15 March 2021 had added the "Mate diagonally" section.
- 2020-11Version 1.8 on 9 November 2020: new "Endgame" section; version 1.7 of 9 September 2020 had added openings and the "Traps in the opening" section.
- 2020-01Version 1.2 on 4 January 2020, the earliest entry in the version history visible on the App Store; the publisher’s copyright reads 2019.
The scores, evidence by evidence
Every score points to the page read and the fact found there. A fact documented nowhere is not credited: document it, then write to us.
APersonalized diagnosis
0.0A1 :0Importing your games (Chess.com, Lichess, PGN files)
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: no feature on the player’s games
A2 :0Automatic engine analysis of every game
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: no feature on the player’s games
A3 :0Recurring mistakes identified across all your games
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: no feature on games
A4 :0Types of mistakes covered (tactics, strategy, endgame, time…)
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: no typology
A5 :0Written explanation of each mistake
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: no explanation
A6 :0Stated verification of the diagnoses (procedure, rates)
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: no feature on the player’s games
A7 :0Tracking each weakness over time
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: no feature on the player’s games
A8 :0Comparison with players of the same rating
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: no feature on the player’s games
BOpenings
1.7B1 :1Building a personal repertoire
https://play.google.com/store/apps/details?id=com.kemigogames.chesscoachpro: "30 different openings", fixed
B2 :1Training the repertoire (drills, games)
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: reading through the openings
B3 :0Spotting where you left your repertoire in your games
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: none
B4 :0Verification of the lines taught (engine, practice)
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: not documented
B5 :0Opening explorer and statistics
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: none
B6 :1Explanation of opening plans and ideas
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: "Traps in the opening", names and moves
CTargeted training
0.7C1 :0Exercises drawn from your own games
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: none
C2 :1Bank of tactical exercises (size, themes, rating)
https://play.google.com/store/apps/details?id=com.kemigogames.chesscoachpro: "4200 themed chess puzzles" (< 5,000), themes, difficulty of your choice
C3 :1Endgame training
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: "Endgame" section; module against the engine not found
C4 :0Strategic and positional training
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: tactical and mate themes only
C5 :0Training defense and alertness
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: nothing
C6 :0Training calculation and visualization
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: nothing
C7 :0Difficulty matched to your real level
https://play.google.com/store/apps/details?id=com.kemigogames.chesscoachpro: difficulty chosen by hand
C8 :0Spaced repetition (named algorithm)
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: none
C9 :0Personalized training plan
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: none
DPrice and value
5.8D1 :0What the free plan actually lets you do
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: paid at purchase, no free version
D2 :3Annual price of the full plan
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: $14.99 one-off ≈ €13.79
D3 :1Commercial transparency (price shown, trial, cancellation)
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: price displayed; refund through the stores only
D4 :3Number of paid tiers (how simple the offer is)
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: one-off purchase $14.99, "No in-app purchases"
EEvidence and transparency
2.5E1 :0Published evidence of effectiveness
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: no data
E2 :0Chess verification of the content (positions, lines)
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: no information
E3 :1Transparency of the method (algorithms, code)
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: general description
E4 :2Marketing claims that can be checked (no overselling)
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: factual wording
FContent and method
2.7F1 :0Courses organized by rating level
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: no course
F2 :1Course authors named and titled
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: Igor Zelka, untitled
F3 :1Content formats (text, video, interactive)
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: interactive exercises only
F4 :0Published method of progression
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: none
F5 :2How often the content is updated
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: v1.14 dated 26/08/2026 (< 3 months)
GPlaying and practice
0.0G1 :0Playing humans online (pool, anti-cheating)
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: impossible
G2 :0Realistic artificial opponents
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: no opponent found
G3 :0Replaying one specific position against the machine
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: impossible
G4 :0Tournaments and organized competition
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: none
HExperience and accessibility
6.7H1 :2Platforms available (web, iOS, Android, desktop)
https://apps.apple.com/us/app/chess-coach-pro/id1490698817 + https://play.google.com/store/apps/details?id=com.kemigogames.chesscoachpro: iOS and Android, no web
H2 :3User ratings and reviews (stores, press)
https://play.google.com/store/apps/details?id=com.kemigogames.chesscoachpro: 4.5/5 from 2,450 reviews
H3 :2Interface languages available
App Store id1490698817, Languages field: "English and 7 more" — English, French, German, Italian, Norwegian Bokmål, Portuguese, Russian, Spanish (8)
H4 :0Accessibility (keyboard, screen reader)
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: reviews reporting insufficient text contrast; no information
H5 :3Offline use and known incidents
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: "100% offline"
IPreparation and study
0.0I1 :0Preparing for a named opponent
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: none
I2 :0Annotating and sharing games (studies)
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: none
I3 :0Entering a game played at a club (photo, scoresheet)
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: none
I4 :0Searching your games (filters, position)
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: no player game
JHuman coaching and community
2.5J1 :0Access to human coaches
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: none
J2 :0Size and activity of the community
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: none
J3 :0Tools for trainers, clubs and schools
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: none
J4 :3Engagement mechanics (streaks, virtual currency, reminders)
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: no leaderboard; "no in-app purchases"
KPersonal data and interoperability
2.2K1 :0Exporting your data (games, repertoire)
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: no export
K2 :2Protection of personal data (GDPR, hosting)
https://play.google.com/store/apps/details?id=com.kemigogames.chesscoachpro: "no data collected", no third-party sharing; hosting not applicable (offline)
K3 :0Public API and source code
https://apps.apple.com/us/app/chess-coach-pro/id1490698817: closed
Also, outside the grid
Features found that no criterion measures. They do not count towards the score.
- Family Sharing (6 members)
Sources consulted
Services with a similar profile
The three services whose category profile is closest — a distance over the eleven scores, computed, never chosen.