Best Connect 4 Apps in 2026 — Honest Reviews
11 apps and websites reviewed across web, iOS, Android, and cross-platform. Real pros, real cons, no glowing universal praise. Sorted by overall quality of the playing experience.
Connect Four sits in an awkward category for app stores: it is one of the most-searched casual games in the world, which means there are dozens of free apps competing for installs, most of them mediocre and many of them ad-heavy. The list below cuts through that — only apps and websites we have actually used, with honest pros and cons.
Sorted roughly by how good the experience is overall, not by how popular the app is. The top spot goes to the platform that does the most for the player without compromising on ads or ratings integrity. Lower-rated entries are still listed because they fit specific use cases (kid-friendly, classroom, offline-only) where they make sense.
Web
connect4bot.com
Web · ★★★★½ (3.5/5)
Browser-based Connect Four with a tunable AI opponent. No account needed. One of the cleaner free play-vs-computer experiences online.
Pros
- No signup, no download
- Tunable AI difficulty
- Mobile-friendly browser experience
Cons
- Single-player only — no multiplayer or social features
- No puzzles or game review
- No persistent progress across sessions
Or play in your browser at play4row →
papergames.io
Web · ★★★★ (4.0/5)
Long-running multi-game online community. Connect Four sits alongside Tic Tac Toe, Gomoku, and Reversi, all with persistent accounts and ladders.
Pros
- Genuine continuous online ladder
- Multiple games in one account
- One of the deepest active competitive Connect Four scenes
Cons
- Visual design is functional rather than polished
- No engine-driven game review
- Free tier has ads
Or play in your browser at play4row →
connect4.gamesolver.org
Web · ★★★★★½ (4.5/5)
Pascal Pons's open-source reference Connect Four solver. Drop in any position, get a per-column perfect-play verdict in milliseconds.
Pros
- Open source, MIT licence — fully auditable
- Verified perfect play, the reference other solvers cite
- No signup, no ads, no tracking
Cons
- Solver only — no opponent, no puzzles, no review
- Desktop-first interface
- Not designed for casual play
Visit connect4.gamesolver.org →
Or play in your browser at play4row →
Connect Classroom (educational web tool)
Web · ★★★★ (4.0/5)
Browser-based Connect Four built for classrooms — large board, no chat, no logins, designed for teacher-supervised play between two students on the same screen.
Pros
- Great fit for elementary classrooms
- No chat, no signup, no friction
- Same-screen two-player by design
Cons
- No AI opponent
- No online play
- Not aimed at experienced players
Or play in your browser at play4row →
iOS
Connect Four 2 (iOS classics)
iOS · ★★★ (3.0/5)
A long-standing free iOS Connect Four with single-player AI, pass-and-play, and Game Center integration.
Pros
- Native iOS feel
- Game Center leaderboards
- Pass-and-play on the same device
Cons
- iOS only
- Online play depends on Game Center matchmaking which is patchy in 2026
- Very few interface updates over the years
Or play in your browser at play4row →
Four In A Row! (iOS)
iOS · ★★★½ (2.5/5)
Casual iOS Connect Four with multiple themes and an offline AI opponent. Free with ads.
Pros
- Multiple visual themes
- Quick to launch — ideal for short sessions
- Works fully offline
Cons
- Heavy ads in the free tier
- No real online ladder
- Shallow AI at the top setting
Or play in your browser at play4row →
Android
4 in a Row Online & Offline
Android · ★★★★½ (3.5/5)
A long-running free Android Connect Four app with both offline AI and online play. Multiple difficulty levels, themes, and a clean board.
Pros
- Works fully offline against AI
- Clean, minimal UI
- Free with reasonable ad placement
Cons
- Android only
- Online matchmaking pool is small at off-peak hours
- No game-review or puzzle features
Or play in your browser at play4row →
Cross-platform
play4row
Cross-platform · ★★★★★ (5.0/5)
A chess.com-style Connect 4 platform with ranked Glicko-2 ladder, daily puzzles, named-bot opponents, full game review, friend challenges, and an integrated solver. Web app plus native iOS and Android companions.
Pros
- Ranked ladder with anti-cheat enforcement
- Daily puzzles with rated streaks
- Engine-graded game review on every match
- Free, ad-free, no signup required to play vs computer
- Same account across web, iOS, and Android
Cons
- Native mobile apps are newer than the web app and still catching up on parity
- Online-first — full feature set requires a network
Or play in your browser at play4row →
Connect 4 (Official Hasbro)
Cross-platform · ★★★ (3.0/5)
The official Hasbro digital Connect 4. Recognisable branding, faithful reproduction of the physical board, available on the App Store and Google Play.
Pros
- Official Hasbro IP — the version most people grew up with
- Familiar yellow-stand visuals
- Local two-player on the same device
Cons
- UI feels dated compared to modern mobile games
- Limited online matchmaking — no real ranked ladder
- In-app purchases and ads in some regional builds
Or play in your browser at play4row →
Plato (Connect 4 mode)
Cross-platform · ★★★★½ (3.5/5)
Plato is a multi-game social app with chat, voice, and rooms. Connect 4 is one of dozens of titles in the lineup.
Pros
- Built-in chat and voice with friends
- Cross-platform between iOS and Android
- Many other casual games in the same app
Cons
- Connect 4 specifically is shallow — no ratings, no review, no puzzles
- Heavy social-app feel can be a turn-off if you just want to play
- Notifications can be aggressive by default
Or play in your browser at play4row →
Gravity Quest (Connect-4 variant collection)
Cross-platform · ★★★ (3.0/5)
A collection app bundling Connect-Four-style games with grid-size variants (5×4, 8×7) and rule tweaks. Useful for exploring related games rather than competitive Connect Four itself.
Pros
- Variant boards and rule tweaks for experimentation
- Single download covers many related games
- Local two-player works well for kids
Cons
- Not a strong choice for standard 7×6 competitive play
- AI is mediocre across all variants
- No online ranking
Or play in your browser at play4row →
Frequently Asked Questions
What is the best free Connect 4 app?
play4row is the most feature-complete free Connect 4 platform — ranked ladder, daily puzzles, AI bots, full game review, and friend challenges, all without ads. For a no-signup quick game in the browser, connect4bot.com is also a solid free option. The official Hasbro app is the version most people grew up with but feels dated next to either of the above.
Are there Connect 4 apps without ads?
Yes — play4row, connect4.gamesolver.org, and the educational Connect Classroom are all ad-free. Most other free mobile Connect 4 apps run ads to monetise; some get aggressive about it. Read the cons section above before installing anything new.
Can I play Connect 4 online with friends?
Yes. play4row supports private rooms, friend challenges, and a friends list with chat across web, iOS, and Android. papergames.io also has friend matches in the browser. Most native mobile apps have weaker friends systems than the web platforms.
Which app has the best AI opponent?
play4row's engine is verified perfect at maximum strength against the reference solvers and fields ten distinct named bots at calibrated lower difficulties. connect4bot.com's top setting is also strong. The classic Hasbro app's AI tops out at intermediate strength and is too easy for serious players.
Try play4row — the best free Connect 4 platform
Ranked ladder, daily puzzles, AI bots at every level, full game review, friend challenges, and an integrated solver. Free, ad-free, no signup needed to start playing.