GBDev vs STANDBY GO
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GBDev
Experience retro gaming with this multi-emulator, offering extensive customization for a personalized feel. Enjoy features like screen bleed, scanlines, and adjustable controls. Connect controllers and output to a TV for immersive retro gatherings.
- Multi-console emulation (GB, GBC, GBA, NES, SNES, DS, 3DS, GC, Wii)
- Customizable screen effects (bleed, scanlines)
- Adjustable screen and button layout
- Animated themes and custom buttons
- Bluetooth controller support
- AirPlay TV output
- Button haptics for immersion
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GBDev is a fast multi emulator with an immersive feel and lots of good ways to customize your emulation experience. Emulates: GB • GBC • GBA • NES • SNES • DS • DSI • 3DS • GC • Wii Get cozy under the covers with our screen bleed and crt scanlines options. Reposition the screens and buttons to maximize the emulation feel. Enhance the look with animated themes and custom buttons. Landscape mode goes hard too especially when a bluetooth controller is connected. SNES Mouse works for mar10 pain7 too!! GBDev even has 3ds mii support. Connect to a tv with airplay, connect some controllers via bluetooth, and set the phone on charge for a night of retro gatherings. Button haptics make you feel more immersed so we have that too. Our game library is seperated by console. Thank you for using GBDev!!
STANDBY GO
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STANDBY GO turns your iPhone or iPad into a professional cue lamp (tally light/signal lamp). No internet connection or account registration is required. Using local Wi-Fi or Bluetooth, you can connect multiple devices directly and send instant visual cues from a master device to client devices. [ Disclaimer / Notice] *This app relies on wireless communication (Wi-Fi/Bluetooth) which can be susceptible to interference, latency, or disconnection depending on the environment. Please refrain from using it as the primary/sole signaling device in mission-critical, zero-error environments (e.g., live TV broadcasts, large-scale live events). We recommend using it for rehearsals or as a supplementary communication tool. [Perfect For] Giving cues to performers in live streams, theater, and events. Starting signals and timekeeping in sports. Reliable communication in environments where sound cannot be made. "On-Air" or recording start signals on set. [Features] Dual Modes: Choose between "Parent Mode" (sender) and "Child Mode" (receiver) within the same app. Ultra-Low Latency: Local network connection ensures the receiver's screen changes the instant you tap. High Visibility UI: Large RED (GO) and YELLOW (STANDBY) lamps with bold text make it highly visible even from a distance. Multi-Device Support: Send cues from one parent device to multiple child devices simultaneously. Reliable Connection: Connection status is displayed on both devices, with robust auto-reconnect if the connection drops. [How to Use] Select "Parent Mode" on the device sending the cues, and "Child Mode" on the receiving devices. The devices will automatically find and connect to each other. Tap "STANDBY (Yellow)", "GO (Red)", or "FLAT (Off)" on the parent device, and the child devices will instantly light up in that color. Experience the ultimate, zero-distraction wireless cue system designed for flawless execution.
Screenshots
Verdict
The clearest difference is in-app purchases: STANDBY GO at none against GBDev's 8. GBDev's advantage is update cadence (every 4 days vs every 2 weeks) and iOS requirement (16.0 vs 18.2). On price, ads 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. GBDev sells 8 one-off in-app purchases. STANDBY GO asks for nothing beyond the download.
GBDev ships an update every 4 days, STANDBY GO every 2 weeks. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.
| Parameter | GBDev | STANDBY GO |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (24 ratings) — better | — |
| Positive reviews | 41.7% of reviews | — |
| Number of ratings | 24 — better | — |
| Update frequency | Every 4 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 16.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 100 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Winter Bagley | SUGAR SOUND, K.K. |
In-app purchases
GBDev
- Theme Pack 1$1.99
- Theme Pack 2$1.99
- Visual Pack 1$1.99
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- Visual Pack 2$1.99
- Visual Pack 3$1.99
- Theme Pack 4$1.99
- Theme Pack 3$1.99
- GBDev Pro$2.99
STANDBY GO
No in-app purchases









