How to Install Scarlet iOS on Your iPhone or iPad

Bychadmin Updated on

Last Updated: March 2026 – This guide covers the latest methods to install Scarlet iOS on your iPhone or iPad, including iOS 18 support.

Looking to install Scarlet iOS on your iPhone or iPad? You’ve come to the right place. Scarlet iOS is a powerful third-party app installer that lets you sideload IPA files, tweaked apps, emulators, and games without jailbreaking your device. In this comprehensive guide, we’ll walk you through every installation method available in 2026.

What is Scarlet iOS?

Scarlet iOS is a free app store alternative that allows you to install applications not available on the official Apple App Store. Unlike jailbreaking, Scarlet uses enterprise certificates to sign and install apps, keeping your device’s security and warranty intact.

Key Features:

  • Install IPA files without a computer
  • Access tweaked apps and emulators
  • No jailbreak required
  • Works on iOS 14 through iOS 18
  • Built-in app library with thousands of apps

Before You Install: Requirements

Before installing Scarlet iOS, make sure you have:

  • Compatible Device: iPhone 8 or newer, iPad Air 3 or newer
  • iOS Version: iOS 14.0 or later (iOS 18 supported)
  • Safari Browser: Must use Safari, not Chrome or other browsers
  • Internet Connection: Stable WiFi or cellular data
  • Storage Space: At least 100MB free

Method 1: Direct Install (No Computer – Recommended)

This is the easiest and most popular method. You can install Scarlet directly from your iPhone or iPad without needing a computer.

Step-by-Step Instructions:

  1. Open Safari on your iPhone or iPad (must be Safari, not Chrome)
  2. Visit scarletios.com
  3. Tap the “Install Scarlet” button
  4. When prompted, tap “Allow” to download the configuration profile
  5. Go to Settings > General > VPN & Device Management
  6. Find the downloaded profile and tap “Install”
  7. Enter your passcode when prompted
  8. Tap “Install” again to confirm
  9. Return to home screen – Scarlet icon should appear
  10. Trust the app: Go to Settings > General > VPN & Device Management, find Scarlet, and tap “Trust”

Tip: If the direct install doesn’t work, it may be due to certificate issues. Try the AltStore or Sideloadly methods below.

Method 2: Install via AltStore

AltStore is a reliable alternative that uses your Apple ID to sign apps. This method requires a computer but offers more stability.

Requirements:

  • Windows PC or Mac
  • AltServer installed on computer
  • AltStore installed on iPhone/iPad
  • Scarlet IPA file

Steps:

  1. Download AltServer from altstore.io on your computer
  2. Install AltStore on your iPhone/iPad using AltServer
  3. Download the Scarlet IPA from scarletios.com (Install via AltStore button)
  4. Open AltStore on your device
  5. Tap the + icon and select the Scarlet IPA file
  6. Sign in with your Apple ID when prompted
  7. Wait for installation to complete

Note: Apps installed via AltStore need to be refreshed every 7 days while connected to AltServer.

Method 3: Install via Sideloadly

Sideloadly is a powerful desktop tool that gives you more control over the sideloading process.

  1. Download Sideloadly from sideloadly.io
  2. Install and launch Sideloadly on your PC/Mac
  3. Connect your iPhone/iPad via USB cable
  4. Download Scarlet IPA from scarletios.com
  5. Drag the IPA file into Sideloadly
  6. Enter your Apple ID and password
  7. Click Start and wait for installation
  8. Trust the app in Settings > General > VPN & Device Management

Method 4: Install via TrollStore (iOS 14-17.0 Only)

TrollStore offers permanent installation without certificate revokes, but only works on iOS 14.0 to 17.0.

  1. Install TrollStore on your device (requires specific iOS versions)
  2. Download Scarlet IPA from scarletios.com
  3. Open the IPA with TrollStore
  4. Tap Install – Scarlet will be permanently installed

Advantage: Apps installed via TrollStore never expire and won’t be affected by certificate revokes.

Troubleshooting Installation Issues

“Unable to Verify App” Error

Go to Settings > General > VPN & Device Management, find the Scarlet profile, and tap “Trust.”

“Unable to Install” Error

Make sure you’re using Safari browser. Clear Safari cache and try again. If issues persist, use an alternative installation method.

App Crashes on Launch

The certificate may have been revoked. Delete Scarlet and reinstall using the latest download link from scarletios.com.

How to Use Scarlet After Installation

Once installed, open Scarlet and explore the built-in app library. You can:

  • Browse featured apps and games
  • Search for specific apps
  • Add custom repositories for more content
  • Import your own IPA files
  • Manage installed apps

Frequently Asked Questions

Is installing Scarlet iOS safe?

Yes, when downloaded from the official source (scarletios.com). Scarlet doesn’t require jailbreaking, so your device security remains intact.

Will Scarlet void my warranty?

No. Since Scarlet doesn’t modify system files or require jailbreaking, your Apple warranty remains valid.

Which method should I use?

For most users, the Direct Install method is the easiest. If you experience certificate issues, try AltStore or Sideloadly for more reliable installation.

Ready to install? Head to scarletios.com and download Scarlet iOS today!

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