Delta vs Buzzers
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Delta
This app allows you to play classic games from various retro consoles on your iOS or iPadOS device. It supports multiple systems, online multiplayer for some games, and extensive controller customization. You can also manage game saves, use cheats, and sync your data across devices.
- Supports NES, SNES, N64, DS, GBA, and more
- Online multiplayer for Nintendo DS games
- Extensive controller support (Switch, PS, Xbox, MFi)
- Save states with automatic backups
- Cheat code support for various systems
- Cross-device syncing via Google Drive/Dropbox
- Customizable controller skins
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Delta is an all-in-one emulator for iOS and iPadOS. Delta builds upon the strengths of its predecessor, GBA4iOS, while expanding to include support for more game systems such as NES, SNES, N64, Nintendo DS, and Sega Genesis. FEATURES Supported Game Systems • Nintendo Entertainment System • Super Nintendo Entertainment System • Nintendo 64 • Game Boy (Color) • Game Boy Advance • Nintendo DS • Sega Genesis Online Multiplayer • Play online-compatible Nintendo DS games with friends around the world! • Connect via community Nintendo WFC servers • Choose one of the default servers, or provide a custom DNS Controller Support • Nintendo Switch Pro controllers, Joy-Cons • Nintendo Switch Online controllers (NES, SNES, N64) • PS4, PS5 • Xbox One S, Xbox Series X • MFi game controllers • Bluetooth & wired keyboards RetroAchievements • Sign in with your RetroAchievements account to earn achievements in any supported game • Supports Hardcore mode, which disables loading save states and using cheats • Shows your achievement progress when launching a game Save States • Save and load save states for any game from the pause menu. • Lock save states to prevent them from being accidentally overwritten. • Automatically makes backup save states to ensure you never lose your progress. • Support for “Quick Saves,” save states that can be quickly saved/loaded with a single button press (requires external controller). Cheats • Supports various types of cheat codes for each supported system: • NES: Game Genie • SNES: Game Genie, Pro Action Replay • N64: GameShark • GBC: Game Genie, GameShark • GBA: Action Replay, Code Breaker, GameShark • DS: Action Replay • Genesis: Action Replay, Game Genie Delta Sync • Sync your games, game saves, save states, cheats, controller skins, and controller mappings between devices. • View version histories of everything you sync and optionally restore them to earlier versions. • Supports both Google Drive and Dropbox. Custom Controller Skins • Beautiful built-in controller skins for all systems. • Import controller skins made by others, or even make your own to share with the world! • Supports animated buttons for even more immersion when playing games Hold Button • Choose buttons for Delta to hold down on your behalf, freeing up your thumbs to press other buttons instead. • Perfect for games that typically require one button be held down constantly (e.g. run button in Mario games, or the A button in Mario Kart). Fast Forward • Speed through slower parts of games by running the game much faster than normal. • Easily enable or disable from the pause menu, or optionally with a mapped button on an external controller. • Customize speed per-game by long-pressing Fast Forward option in pause menu. 3D/Haptic Touch • Use 3D or Haptic Touch to “peek” at games, save states, and cheat codes. • App icon shortcuts allow quick access to your most recently played games, or optionally customize the shortcuts to always include certain games. Game Artwork • Automatically displays appropriate box art for imported games. • Change a game’s artwork to anything you want, or select from the built-in game artwork database. Misc. • Gyroscope support (WarioWare: Twisted! only) • Microphone support (DS only) • Support for delta:// URL scheme to jump directly into a specific game. Delta Terms of Use: https://altstore.io/terms **Delta is in no way affiliated with Nintendo. The name "Nintendo" and all associated game console names are registered trademarks of Nintendo Co., Ltd.**
Buzzers
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Ready to host the ultimate game night? Buzzers transforms your devices into a professional game show. Perfect for trivia lovers, teachers, and board game enthusiasts, Buzzers eliminates the arguments about "who was first" by tracking response times down to the millisecond. WHY YOU’LL LOVE BUZZERS: * The Full "Game Show" Experience (Online) Host a game and connect friends via code or QR link. The real-time sync ensures a fair and exciting game, whether you are in the same room or connecting remotely. * Standalone Buzzer Mode (Offline) No internet connection required! Use the app as a standalone party buzzer. It’s perfect for board games that need a sound effect or just for playing around. Versatile Answer Types We support more than just speed. Choose the right input for your next question: - Classic Buzzer: A big red button. - Yes / No: Quick inputs for binary questions. - Multiple Choice: A | B | C options for structured trivia questions. - Free Text: Let players type their answers for "fill in the blank" rounds. Powerful Host Controls You run the show. As the host, you can: See who is in the game. Open and close the participants' buzzers. Choose buzzer input type. Build Suspense: Choose to hide the results or the buzzing order until the timer stops. Great for keeping players on the edge of their seats! Play Anywhere, with Anyone Buzzers is cross-platform and works seamlessly whether everyone is on the same couch or connecting remotely via video call. Cast the host screen to a TV so the whole room can see the timer and status. Customizable Fun Create your profile with a unique avatar and alias. Choose from various buzzer sounds—from squeaky toys to air horns—to add personality (and a little distraction) to the game. Download Buzzers now and claim the title of Quiz Master!
Screenshots
Verdict
The clearest difference is in-app purchases: Buzzers at none against Delta's 3. Buzzers also leads on iOS requirement (15.6 vs 17.4). Delta's advantage is ads (none vs shown) and update cadence (monthly vs every 4 months). 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
Both are free to download. Delta sells 3 in-app purchases, starting at $10.00 per month. Buzzers asks for nothing beyond the download.
Delta ships an update monthly, Buzzers every 4 months. The most recent releases landed on October 31, 2026 and October 27, 2026 respectively.
| Parameter | Delta | Buzzers |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (28K ratings) — better | — |
| Positive reviews | 81.2% of reviews | — |
| Number of ratings | 28K — better | — |
| Update frequency | Monthly — better | Every 4 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Best chart rank | #74 — better | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.4 | 15.6 — better |
| Further details — not scored | ||
| Size | 228 MB | 66 MB |
| Age rating | 4+ | 4+ |
| Developer | Testut Tech | Daniel Johansson |
Bugs and requests
Delta
Reported bugs
4 issues- Certain games have graphical issues
- DS game audio/video desync
- Inconsistent save state behavior
- Crashes when deleting/managing games
Requested features
7 requests- Add support for more consoles (GameCube, Wii, PS1, etc.)
- Implement 3DS emulation
- Allow custom button/control layouts
- Add screen scaling and aspect ratio options
- Implement local multiplayer for DS games
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- Improve AirPlay functionality
- Integrate iCloud sync support
Buzzers
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Delta
- Early Adopter$10.001 Month
- Community Member$15.001 Month
- Friend Zone$30.001 Month
Buzzers
No in-app purchases









