Comparison

Roblox vs diep.io

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

Head to head
About

Roblox

Explore millions of immersive 3D multiplayer experiences created by a global community. Play games, roleplay, compete, or create your own virtual worlds. Customize avatars and connect with friends across various devices.

Highlights
  • Discover millions of user-created experiences
  • Create and share your own games
  • Customize avatars with clothing and accessories
  • Play with friends across multiple devices
  • Multiplayer battles and role-playing games
  • In-app chat and voice communication (age-verified)
Read full description

ROBLOX – MILLIONS OF GAMES ACROSS EVERY GENRE. PLAY FREE. Roblox is home to every kind of game, for every kind of player. Compete in high-octane racing games, battle it out in hardcore tactical shooters, or put your survival skills to the test in unpredictable environments. Embark on an epic adventure in immersive RPGs, build massive empires in tycoons, or dive into horror, anime, and sports games with friends worldwide. Roblox is constantly evolving, with unique experiences and ambitious, high-fidelity games built by a global community including professional studios, indie teams, and solo creators. There’s always something new to discover every day. Start playing some of the most popular games on Roblox today, including Dress to Impress, RIVALS, Steal a Brainrot, Brookhaven RP, Adopt Me! and more. WHAT YOU CAN DO ON ROBLOX PLAY ONLINE MULTIPLAYER GAMES - Discover deep role-playing games, immersive simulators, action-packed adventures, and more - Explore trending experiences and new games daily - Compete in massive multiplayer battles, run your own digital business, or embark on epic quests - Games may contain optional in-game purchases, including lootboxes and other items CREATE YOUR OWN AVATAR - Customize your avatar with detailed clothing, accessories, and dynamic hairstyles - Discover thousands of user-created 3D avatar items in the Marketplace - Express yourself with unique emotes, and fashion CHAT, COMPETE, AND EXPLORE TOGETHER—ANYTIME, ANYWHERE - Hang out and play with friends in cross-platform multiplayer games on mobile, tablet, PC, console, and VR headsets - Join a Party and jump into competitive or social experiences together - Age-verified users can communicate in real-time via voice chat or text CREATE, PLAY, AND SHARE ON ROBLOX - Design high-fidelity games and virtual spaces using the Roblox Studio engine on Windows or Mac - Publish your experiences and empower yourself as a creator in a massive global community - Dive into immersive 3D multiplayer games and safe, inclusive environments designed for users of all ages - Enjoy endless new content added daily and share your creations with millions of players ELEVATE YOUR EXPERIENCE WITH ROBLOX PLUS - Get up to 20% discounts on in-game items, enjoy fee-free Robux transfers, and receive a distinct profile badge - Host free, unlimited private servers for your friends - Publish, trade, and resell your own custom avatar creations on the Marketplace INDUSTRY-LEADING SAFETY, PRIVACY, AND CIVILITY - Advanced content filtering and age-appropriate moderation - Access age-verified spaces and manage your privacy with Roblox Kids and Select Accounts - Clear community guidelines promoting respectful interactions - Dedicated trust & safety teams working around the clock CREATE YOUR OWN GAMES: https://www.roblox.com/develop SUPPORT: https://en.help.roblox.com/hc/en-us CONTACT: https://corp.roblox.com/contact/ PRIVACY POLICY: https://www.roblox.com/info/privacy PARENT’S GUIDE: https://corp.roblox.com/parents/ TERMS OF USE: https://en.help.roblox.com/hc/en-us/articles/115004647846 PLEASE NOTE: A network connection is required. Roblox works best over Wi-Fi. ※ Information on App Permissions: Roblox requires the following permissions for your seamless use of the Roblox app. [Optional Permissions] Notification: For sending notifications (related to the services, experiences, etc.) Microphone: For in-game voice chat features Camera: For animating your avatar with your movement Contacts: For contact importer features (find other users you may know and make recommendations for friends) * You can use the app regardless of whether or not you consent to optional permissions * Certain app features may not work properly if you refuse optional permissions

About

diep.io

Engage in massive online multiplayer tank battles. Destroy blocks and other players to gain experience, level up your tank's stats, and upgrade to different classes. Dominate the leaderboard in this fast-paced action game optimized for mobile.

Highlights
  • Online multiplayer action
  • Dozens of players per game
  • Fast-paced tank warfare
  • Level up tank stats
  • Upgrade tank classes
  • Optimized for mobile controls
Features
Read full description

From the creator of Agar.io, the newest online smash hit game comes to mobile! Upgrade your tank, shoot down other players and reach the top of the leaderboard! MASSIVELY MULTIPLAYER ONLINE ACTION! Play with dozens of other players at once on huge servers packed with excitement! MOVE, SHOOT AND SURVIVE! Destroy blocks and other players to gain XP, but don’t get shot down yourself! Stay safe out there! LEVEL UP AND BOOST YOUR STATS! Choose which stats to increase and change the way your tank plays! Do you want extra bullet damage or a fast movement speed? It’s all down to you! CHOOSE FROM DIFFERENT TANK CLASSES! Upgrade your tank to a new class. Machine guns, guided missiles, cannons in every direction… there’s a world of choice! OPTIMIZED FOR MOBILE! diep.io on mobile offers the same great experience as the hit web game, with new controls perfect for touchscreens! KEY FEATURES - Online multiplayer action! - Dozens of players in each game! - Fast-paced tank on tank warfare! - Level up a variety of stats! - Upgrade into many different tank classes! - Easy to play but challenging to master! - Free to play! This game requires an internet connection.

Screenshots

Roblox4 screens
diep.io4 screens

Verdict

The call

The clearest difference is rating: Roblox at 4.5 against diep.io's 3.8. Roblox also leads on ads (none vs shown) and ratings volume (20M vs 20K). diep.io's advantage is in-app purchases (none vs 16). On price, device support and iOS requirement 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. Roblox sells 16 in-app purchases, starting at $4.99 per month. diep.io asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Roblox holds the better App Store score, 4.5 against 3.8. That said, the two scores are not equally well evidenced: Roblox has 20M ratings behind it against 20K, so its average is the more settled of the two. Written reviews point the same way: 60% of Roblox's written reviews are positive against 47% of diep.io's.

UpkeepUpdate frequency

Roblox ships an update weekly, diep.io monthly. Both last shipped on September 24, 2026.

Scorecard8 real differences · 3 level
Roblox versus diep.io: the parameters behind the verdict, then further details
ParameterRobloxdiep.io
PriceFreeFree
Rating4.5 (20M ratings) — better3.8 (20K ratings)
Positive reviews60.0% of reviews — better46.9% of reviews
Number of ratings20M — better20K
Update frequencyWeekly — betterMonthly
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
Best chart rank#1 — better—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.013.4 — better
Further details — not scored
Size224 MB17 MB
Age rating12+9+
DeveloperRoblox CorporationVexxusArts Ltd

Customer experience

Roblox

All ratings20,129,792 ratings
Positive87.6%
Neutral3.5%
Negative8.9%
Written reviews36,493 reviews
Positive60.0%
Neutral7.5%
Negative32.5%

diep.io

All ratings19,867 ratings
Positive67.8%
Neutral5.7%
Negative26.5%
Written reviews1,771 reviews
Positive46.9%
Neutral12.0%
Negative41.2%

User reviews

Roblox

From 20M App Store ratings

What we love

  • 🚀 Endless games and experiences
  • 🤝 Ability to make virtual friends
  • 🎨 Customizable avatars
  • 🎮 Wide variety of game genres
  • 👍 Fun and engaging for all ages

Room to improve

  • 🤖 Ineffective moderation and reporting system
  • 💰 Expensive in-game purchases
  • 🔍 Difficulty finding specific games
  • 🤔 Confusing chat/tag system
  • 🔒 Concerns about online safety and predators

diep.io

From 20K App Store ratings

What we love

  • 🚀 Awesome game
  • 👍 Great game
  • 👍 Fun game
  • 👍 Peak gamer game

Room to improve

  • 🐛 Bugs
  • 🐛 Laggy
  • 🐛 Unoptimized
  • 🐛 Glitches
  • 🐛 Crashes

Bugs and requests

Roblox

Reported bugs

3 issues
  • Frequent disconnections and server issues
  • Glitches that delete purchased items
  • Inconsistent chat filtering and tagging

Requested features

5 requests
  • Ability to earn Robux through gameplay
  • Improved search and discovery for games
  • More free avatar customization options
  • Better parental controls and monitoring
  • Faster response to reports of inappropriate content

diep.io

Reported bugs

11 issues
  • Can't shoot when upgrading
  • Upgrade menu disappears after ignoring
  • Unresponsive upgrade menu
  • Invisible tanks and bullets
  • Teleporting tanks
Show 6 more
  • Spawn killing
  • Hackers and cheaters
  • Game freezing and crashing
  • Lag spikes
  • Disconnection issues
  • Incompatibility with newer devices

Requested features

13 requests
  • Add more tanks
  • Add more game modes
  • Bring back mothership
  • Add sandbox mode
  • Add private servers
Show 8 more
  • Add offline mode
  • Improve mobile controls
  • Allow shooting while upgrading
  • Reduce spawn killing
  • Improve balancing
  • Add boss fights
  • Add tracking missiles
  • Add ability to kill arena closers

In-app purchases

16 purchases

Roblox

Subscriptions1
  • Roblox Premium 450$4.991 Month
One-time15
  • 80 ROBUX$0.99
  • Premium 80 Robux$0.99
  • Premium 88 Subscribed$0.99
Show 12 more
  • Premium 160 Robux$1.99
  • Premium 240 Robux$2.99
  • Premium 320 Robux$3.99
  • 400 Robux Premium$4.99
  • 440 Robux Subscribed$4.99
  • Roblox Premium 450 One Month$4.99
  • 800 ROBUX$9.99
  • 800 Robux Premium$9.99
  • 880 Robux Subscribed$9.99
  • Roblox Premium 1000 One Month$9.99
  • 1700 Robux Premium$19.99
  • Roblox Premium 2200 One Month$19.99
None

diep.io

No in-app purchases

Questions

Is Roblox free?
Roblox is free to download, with in-app purchases available.
Is diep.io free?
diep.io is free to download, with no in-app purchases.
Which has better reviews, Roblox or diep.io?
Roblox is rated higher. Roblox averages 4.5 out of 5 from 20M ratings, while diep.io averages 3.8 from 20K ratings.
Do Roblox or diep.io have ads?
diep.io shows ads; Roblox does not.
Which is updated more often, Roblox or diep.io?
Roblox ships an update weekly, and diep.io monthly. Most recently, Roblox was updated on September 24, 2026 and diep.io on September 24, 2026.

Other comparisons