Delta has quickly become the most reliable way to play classic Nintendo games on the iPhone, and the best part is that you can install it without jailbreaking your device. This guide walks you through every safe and working method to install Delta Emulator on iOS, including the official App Store method, AltStore PAL, and alternative sideloading options.
What Is Delta Emulator?
Delta is a multi-system emulator for iOS that supports Game Boy, GBA, NES, SNES, N64, and Nintendo DS. It includes controller support, save states, cheat codes, and cloud sync. Since Apple recently allowed emulators into the App Store, Delta is now easier to install than ever—depending on your region.
Method 1: Install Delta from the App Store (Recommended)
This is the safest and officially supported method. If Delta is available in your country, install it directly from the App Store.
How to Install:
- Open the App Store on your iPhone.
- Search for Delta Emulator or Delta – Game Emulator.
- Confirm the developer name: Testut Tech.
- Tap Get and install the app.
- Launch Delta and begin importing ROMs.
If Delta does not appear in search results, it may not be available in your region or may have been temporarily removed. In that case, use the next method.
Method 2: Install Delta Using AltStore PAL (Official Alternative)
AltStore PAL is the official backup option when the App Store version is not available. It is supported by the same developer who created Delta.
Steps:
- Open Safari on your iPhone.
- Visit https://altstore.io/pal/.
- Tap Download AltStore PAL.
- Sign in using your Apple ID.
- Install the profile when prompted.
- Open AltStore PAL, find Delta, and install it directly.
AltStore PAL is extremely stable because the app is signed using Apple’s new “local app distribution” rules in Europe. If you are in India, US, or outside the EU, availability may vary.
Method 3: Install Delta Using Sideloading Apps (Scarlet Method)
If you cannot access the App Store or AltStore PAL, you can install Delta through sideloading tools like Scarlet. These tools resign IPA files and let you install them directly on your device—but the downside is that apps can stop working when certificates are revoked.
How to Install Delta via Scarlet:
- Open Safari on your iPhone.
- Go to https://usescarlet.com/.
- Install the Scarlet profile when prompted.
- Open Scarlet and search for Delta Emulator.
- Tap Install.
- Go to Settings > General > VPN & Device Management.
- Trust the downloaded certificate.
- Launch Delta.
This method works without a PC, but it is less stable in the long term. For best results, use App Store or AltStore PAL if possible.
How to Add ROMs to Delta
Once Delta is installed, adding games is straightforward. You can import ROMs from cloud storage or local files.
Methods to Add Games:
- Files app: Save a ROM into the Files app and open it with Delta.
- iCloud Drive: Store ROMs in iCloud and import directly.
- AirDrop: Send ROMs from your Mac or another iPhone.
- ZIP archives: Delta automatically extracts supported ROMs.
Supported systems include:
- Game Boy / Game Boy Color
- Game Boy Advance
- NES
- SNES
- N64
- Nintendo DS
Delta does not provide ROMs. You must supply your own legally obtained game files.
Troubleshooting: Delta Not Installing or Not Opening
If you encounter issues, try these solutions.
1. “Unable to Install App”
This usually happens with revoked certificates.
Fix: Reinstall Delta through AltStore PAL or the App Store for a stable signature.
2. “Untrusted Developer”
This appears when installing via Scarlet or other sideloading apps.
Fix: Go to: Settings > General > VPN & Device Management > Trust Developer
3. Delta Crashes on Launch
If a certificate is revoked or expired, the app will close immediately.
Fix: Reinstall Delta using an official method (App Store or AltStore PAL).
4. ROMs Not Showing Up
Delta supports ZIP and standard ROM extensions. If your file doesn’t load:
Fix: Ensure the ROM is extracted and try placing it in iCloud Drive before importing.
Installing Delta Emulator on iOS is now easier than ever, thanks to official support and new app distribution options. Whether you install it from the App Store or use AltStore PAL, you can get a stable experience with full controller support, save states, and fast performance. Sideloading options like Scarlet can help when official methods are unavailable, but they are not as reliable.
