Comparison

Double Driver vs JOY Emulator

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

Head to head
About

Double Driver

Explore the world of Kamen Rider W with this comprehensive encyclopedia. Discover detailed information on characters, riders, drivers, and Gaia Memories. Test your knowledge with a trivia quiz and enjoy a beautifully designed interface.

Highlights
  • Character encyclopedia
  • Rider archive
  • Driver database
  • Gaia Memory library
  • Trivia quiz mode
  • Apple Watch support
Features
Read full description

Welcome to Fuuto DoubleDriver is an all-in-one encyclopedia app created for Kamen Rider W fans. It allows you to explore the mysterious city of Fuuto anytime, anywhere. Whether you are a newcomer to the world of Riders or a long-time fan, you can find everything you need here. Home of Fuuto Enjoy a beautifully designed interface inspired by W’s classic color theme. Quickly access sections including Characters, Riders, Drivers, and Gaia Memories. Discover new content every day and uncover hidden details about the series. Character Encyclopedia Includes detailed profiles of nine major characters such as Shotaro Hidari, Philip, Ryu Terui, and Akiko Narumi. Learn about their personalities, relationships, and stories behind their roles in Fuuto. Rider Archive Features complete information on Kamen Rider W and related Riders including Accel, Eternal, Skull, and Joker. Each Rider entry includes transformation forms, special abilities, and first appearance details. Driver Database Dive deep into the mechanics of the Double Driver system and its dual-slot design. Explore other Drivers such as the Accel Driver and Lost Driver, and understand their compatibility with different Gaia Memories. Gaia Memory Library A complete collection of Gaia Memories with their colors, powers, and users. Learn about Cyclone, Joker, Heat, Metal, and many more. The app also explains the differences between standard Gaia Memories and T2 Memories. Trivia Quiz Mode Test your knowledge with random questions drawn from a set of 20 carefully designed quiz items. The quiz covers topics such as story events, transformation forms, and character details. You can track your progress in real time and restart the quiz anytime to improve your score. Apple Watch Support The full quiz and Rider encyclopedia are available on Apple Watch. View information on five major Riders directly from your wrist. The watch app runs independently without an iPhone and offers a compact layout optimized for small screens. Key Features Elegant design using W’s signature Cyclone Green and Joker Purple split theme Comprehensive content updated regularly with new Riders and trivia Simple navigation and comfortable reading experience with dark mode support Smooth transitions and well-organized structure for quick access Who It’s For Fans of Kamen Rider W New viewers who want to learn more about the series Collectors and lore enthusiasts Players who enjoy trivia and quiz challenges Apple Watch users who love Rider-themed apps About Kamen Rider W Kamen Rider W is the 11th title in the Heisei Kamen Rider series, first aired in 2009. The story is set in Fuuto City and follows detective Shotaro Hidari and mysterious genius Philip, who combine to become Kamen Rider W. Together, they battle Dopants who misuse Gaia Memories to commit crimes. Now, count up your sins! Download DoubleDriver today and become Fuuto’s next hard-boiled detective.

About

JOY Emulator

Relive classic video games from multiple console generations on your mobile device. This emulator offers extensive platform support, advanced features like save states and speed boosts, and cloud synchronization for seamless play across devices. Enjoy customizable controls and retro visual filters for an enhanced gaming experience.

Highlights
  • Supports Nintendo, PlayStation, Sega, and Arcade consoles
  • Unlimited save states and auto-save
  • Speed boost mode for faster gameplay
  • Extensive cheat code database
  • Customizable retro visual filters
  • Cloud sync for game library and saves
  • Full controller support
Features
Read full description

We can never truly go back—but a part of us stayed there for good. Welcome to JOY, an all-in-one handheld born from passion. Whether you want to relive the masterpieces of your childhood or finally play the classics you missed, it's all here—in a whole new way, ready to move you all over again. > Supported Platforms Nintendo - Nintendo Wii (Wii) - Nintendo GameCube (GC) - Nintendo 3DS (3DS) - Nintendo 64 (N64) - Nintendo DS (NDS) - Game Boy Advance (GBA) - Game Boy Color (GBC) - Game Boy (GB) - NES (Nintendo Entertainment System) - SNES (Super Nintendo Entertainment System) Sony - PlayStation (PS1) - PlayStation Portable (PSP) Sega - Dreamcast (DC) - Mega Drive / Genesis (MD) Arcade - Arcade (MAME) » More systems are joining the roster soon—stay connected for updates. > Features You'll Love The thrill of beating a final boss, the joy of playing side by side with a friend—every moment is worth treasuring, and worth a better experience. - Save Without Limits: Manual + auto multi-layer protection; never relive the nightmare of starting over. - Rewind (GB/GBC/GBA/NES/SNES/MD/PS1/NDS/N64/Arcade): One wrong move? Turn back a few seconds and try again. - Speed Boost Mode: Skip the grind, jump straight to the action. - Local Wireless Play: Team up with friends on the same Wi-Fi in NDS, GBA, PSP, and 3DS games. - Live Translation: On-device, real-time subtitles translate in-game text; foreign-language games made easy. - Motion Controls: Play Wii games with your phone's gyroscope; just swing to strike. - Cheat Code Database: Extensive collection of classic game secrets; unlock hidden gameplay. - Retro Filters: Scanlines, nostalgic CRT glow, or sharp HD upscaling—your choice. - Theme Customization: Multiple console skins and interface styles; express your taste. - Skin Import: Import third-party skins and freely adjust button layouts. - Smart Covers: Box art is matched automatically on import; your library at a glance. - Easy Import: ZIP, 7z, and RAR archives plus drag and drop; swap discs in one tap for multi-disc games. - Instant Sharing: Capture epic moments, show off to friends immediately. - Flexible Orientation: Any screen angle; comfortable whether sitting, standing, or lying down. - Button Mapping: Customize every input; craft your perfect control scheme. > Cloud Sync, Play Anywhere - Game library, saves, and settings sync in real time across devices. - Bank-grade encryption; your progress is bulletproof. - Seamless switching between phone and tablet—pick up and play instantly. - Your retro journey, wherever you go. > Controller Support & Big-Screen Mode - Full compatibility with Joy-Con, DUALSHOCK, Xbox, and other mainstream controllers. - Keyboard support and multi-controller co-op; relive classic couch gaming. - One-tap casting to TV (AirPlay/Mirroring)—bring the arcade home to your living room. Privacy Policy: https://joyemu.com/privacy-policy Terms of Use: https://joyemu.com/terms-of-use Payment Terms: https://joyemu.com/payment-terms Support Email: support@joyemu.com > Notice JOY is not affiliated with any game or console manufacturer. Names mentioned here are used solely to describe the platforms the app supports. Users must provide their own legally obtained game files. JOY does not include any copyrighted game content. If you run into any issues, feel free to reach out anytime through our community or by email—we'll get them resolved as quickly as we can.

Screenshots

Double Driver4 screens
JOY Emulator4 screens

Verdict

The call

The clearest difference is in-app purchases: Double Driver at none against JOY Emulator's 2. Double Driver also leads on rating (5.0 vs 4.6) and review sentiment (100% vs 80%). JOY Emulator's advantage is ratings volume (1.2K vs 2). On price, ads, 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. JOY Emulator sells 2 one-off in-app purchases. Double Driver asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Double Driver holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: JOY Emulator has 1.2K ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of Double Driver's written reviews are positive against 80% of JOY Emulator's.

Scorecard5 real differences · 5 level
Double Driver versus JOY Emulator: the parameters behind the verdict, then further details
ParameterDouble DriverJOY Emulator
PriceFreeFree
Rating5.0 (2 ratings) — better4.6 (1.2K ratings)
Positive reviews100.0% of reviews — better80.4% of reviews
Number of ratings21.2K — better
Update frequency—Every 5 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, Apple Watch — betteriPhone, iPod
Requires iOS16.015.5 — better
Further details — not scored
Size2 MB560 MB
Age rating12+4+
Developer凯祥 孟Emulator Lab

Customer experience

Double Driver

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

JOY Emulator

All ratings1,117 ratings
Positive91.0%
Neutral3.6%
Negative5.4%
Written reviews480 reviews
Positive80.4%
Neutral8.5%
Negative11.0%

In-app purchases

None

Double Driver

No in-app purchases

2 purchases

JOY Emulator

One-time2
  • Joy Pro Forever Early Bird Discount$6.99
  • Joy Pro Forever$9.99

Questions

Is Double Driver free?
Double Driver is free to download, with no in-app purchases.
Is JOY Emulator free?
JOY Emulator is free to download, with in-app purchases available.
Which has better reviews, Double Driver or JOY Emulator?
Double Driver is rated higher. Double Driver averages 5.0 out of 5 from 2 ratings, while JOY Emulator averages 4.6 from 1.2K ratings.
Do Double Driver or JOY Emulator have ads?
Neither Double Driver nor JOY Emulator shows ads.

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