Comparison

Chess Prep Pro Openings vs Connect4SolverAI

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

Head to head
About

Chess Prep Pro Openings

Master chess openings by building custom repertoires and training your memory. Analyze opponent moves, discover blind spots, and utilize an advanced engine for in-depth preparation. Expand your knowledge with downloadable repertoires and import/export PGNs.

Highlights
  • Custom chess opening repertoires
  • Repertoire training and memory sharpening
  • Blind spot finder against player games
  • Chess openings player database
  • Advanced StockFish engine analysis
  • Downloadable and importable repertoires
Features
Read full description

Master chess openings: Build chess opening repertoires & memorise your openings.Chess Prep Pro is the ultimate chess openings app, designed to perfect your openings and elevate your game through custom chess opening repertoire creation and training. How does it work? Chess Prep Pro allows you to create your own custom chess openings repertoires, and prepare for any opponent move. A chess opening repertoire is an opening plan that contains player responses for opponent moves in the opening phase of the game. With a chess opening repertoire, you will not be left scrambling to find the best move during a real game, as you will already remember the best move from studying and practicing your repertoire. Discover Chess Prep Pro's Features: - Custom Chess Opening Repertoires: Build unlimited custom repertoires for any chess opening. Add as many moves and variations as you need to be prepared for every game. - Repertoire Training: Sharpen your memory with chess opening repertoire training. The app challenges your memory with random positions from your opening repertoire, tracking your progress and helping you master every move. - Blind Spot Finder: Stay ahead of your opponents with our blind spot finder feature that analyses your chess openings repertoire against billions of player games, identifying the most likely opponent moves that you did not prepare for. - Chess openings player database: You can use a player openings database that contains billions of moves to find out the most likely opponent move to prepare for. - Advanced Engine: Utilize the latest StockFish engine for in-depth analysis and uncover the best responses to any situation on the board. - Downloadable opening repertoires: Expand your opening knowledge with an ever-growing library of specially created and sourced opening repertoires, curated for your success. - Import / Export: Easily import and export PGNs to and from the app. You can even import liches studies. Master your chess openings now !

About

Connect4SolverAI

Enhance your Connect 4 strategy with an advanced AI that analyzes the board in real-time, identifies forced wins, and teaches you tactics. Enjoy an intuitive interface and flexible play modes designed for both casual fun and competitive play.

Highlights
  • Advanced AI engine (Minimax with Alpha-Beta pruning)
  • Real-time game analysis and forced win detection
  • Interactive drag-and-drop controls
  • Player vs AI and AI vs Player modes
  • Stunning iOS-exclusive "Glassmorphism" design
  • No data tracking or accounts required
Read full description

Take your Connect 4 strategy to the next level with Connect 4 Solver AI, the ultimate companion for strategy enthusiasts. Whether you are a casual player looking to have fun or a competitive mind aiming to solve the game, this app combines a powerful algorithmic engine with a stunning, modern iOS design. Beyond just playing, our advanced AI analyzes the board in real-time. It doesn't just beat you; it teaches you. See exactly when a "forced win" is inevitable and learn how to spot checkmate scenarios turns in advance. Key Features: Advanced AI Engine: Challenge an opponent powered by a Minimax algorithm with Alpha-Beta pruning (Depth 7). It’s smart, tactical, and ready to test your skills. Real-Time Analysis: Get instant feedback on the state of the game. The app identifies "Forced Wins" and calculates exactly how many turns remain until victory or defeat. Stunning "Glassmorphism" Design: Built exclusively for iOS, enjoy a beautiful, vibrant interface featuring liquid backgrounds, glass materials, and smooth spring animations. Interactive Gameplay: Intuitive drag-and-drop controls with "Ghost Chip" previews ensure you never misplace a move. Flexible Play Modes: Choose to go first (Player vs AI) or test your defense by letting the AI strike first. Why Connect 4 Solver AI? Zero Distractions: A clean, focused interface allows you to concentrate purely on strategy. Privacy First: No data tracking, no accounts required—just open and play. Download Connect 4 Solver AI today and become the master of the grid! grid.

Screenshots

Chess Prep Pro Openings4 screens
Connect4SolverAI3 screens

Verdict

The call

The clearest difference is review sentiment: Chess Prep Pro Openings at 74% against Connect4SolverAI's 0%. Chess Prep Pro Openings also leads on iOS requirement (15.0 vs 26.2). Connect4SolverAI's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price and device support there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Chess Prep Pro Openings sells 3 in-app purchases, starting at $3.99 per month. Connect4SolverAI asks for nothing beyond the download.

UpkeepUpdate frequency

Chess Prep Pro Openings ships an update fortnightly, Connect4SolverAI every 3 days. The most recent releases landed on September 27, 2026 and September 15, 2026 respectively.

Scorecard6 real differences · 4 level
Chess Prep Pro Openings versus Connect4SolverAI: the parameters behind the verdict, then further details
ParameterChess Prep Pro OpeningsConnect4SolverAI
PriceFreeFree
Rating4.5 (20 ratings) — better—
Positive reviews73.9% of reviews — better0.0% of reviews
Number of ratings20 — better—
Update frequencyFortnightlyEvery 3 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS15.0 — better26.2
Further details — not scored
Size213 MB4 MB
Age rating4+4+
DeveloperTomasz BogunJacob Mish

Customer experience

Chess Prep Pro Openings

All ratings20 ratings
Positive85.0%
Neutral5.0%
Negative10.0%
Written reviews23 reviews
Positive73.9%
Neutral4.3%
Negative21.7%

Connect4SolverAI

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

3 purchases

Chess Prep Pro Openings

Subscriptions2
  • Monthly premium subscription$3.991 Month
  • Yearly premium$24.991 Year
One-time1
  • Lifetime Premium$59.99
None

Connect4SolverAI

No in-app purchases

Questions

Is Chess Prep Pro Openings free?
Chess Prep Pro Openings is free to download, with in-app purchases available.
Is Connect4SolverAI free?
Connect4SolverAI is free to download, with no in-app purchases.
Do Chess Prep Pro Openings or Connect4SolverAI have ads?
Chess Prep Pro Openings shows ads; Connect4SolverAI does not.
Which is updated more often, Chess Prep Pro Openings or Connect4SolverAI?
Chess Prep Pro Openings ships an update fortnightly, and Connect4SolverAI every 3 days. Most recently, Chess Prep Pro Openings was updated on September 27, 2026 and Connect4SolverAI on September 15, 2026.

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