Sideload Apps on iPhone Without a Computer - Full 2026 Guide

"I don't have a Mac or PC" is the most common reason people think they can't sideload apps on iPhone. The good news: in 2026, you can sideload completely without any computer using on-device signing tools.

There are two approaches: truly zero-computer from start to finish, and one-time-computer-then-wireless. This guide covers both.

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Approach 1: Truly Zero Computer (Start to Finish)

These tools work entirely on your iPhone with no computer involvement at any stage.

Option A: Feather IPA Installer (Most Trusted)

What you need: A P12 certificate + mobileprovision file. These can be obtained from:

• Your own Apple Developer account (developer.apple.com — sign in on iPhone Safari)
• A certificate purchase from a provider (import via AirDrop or Files)

Setup:

1. Download Feather IPA — search "Feather IPA installer" to find the official GitHub
2. You need to bootstrap: use a shared enterprise cert profile (from community sources) to install Feather once
3. After Feather is installed, import your own personal certificate
4. Use Feather to sign all future IPA files on-device

Practical reality: The one tricky step is getting Feather installed in the first place without a computer. The community workaround: use a shared "bootstrap" certificate (from sideloading.org or similar) to install Feather, then immediately switch to your own certificate for everything else.

Option B: KSign (Feature-Rich, Former ESign Users)

Same concept as Feather — on-device signing using an imported certificate. KSign is available via community cert-based installation (same bootstrap approach as Feather).

Option C: Scarlet (Easiest Discovery)

Scarlet can be installed via shared enterprise cert profile from the Scarlet website. Open Safari → tap to install the profile → Scarlet installs. Then use Scarlet's built-in repo browser to find and install apps directly.

This is the closest to a "one-tap from iPhone" experience:

1. Safari → scarlet.ws
2. Install the Scarlet profile
3. Trust in Settings
4. Open Scarlet → browse apps → tap to install

Caveat: The initial certificate Scarlet uses is an enterprise cert shared with many users. It will eventually be revoked. Import your own personal developer certificate in Scarlet settings for stability.

Option D: GBox

Similar to Scarlet — available via web-based installation. Good iOS 26 compatibility.

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Approach 2: Computer Once, Then Wireless Forever (Recommended)

The best long-term setup requires a computer exactly once — during initial SideStore installation. After that, everything is wireless and on-device indefinitely.

Why This Is Better Than Truly Zero Computer

The "truly zero computer" approaches all involve using a shared enterprise certificate for bootstrap — which means your initial setup depends on that cert not being revoked. With SideStore + your own Apple ID, there's no such vulnerability.

One-time setup (20-30 minutes):

1. Borrow a friend's Mac or Windows PC (seriously, just once)
2. Download AltServer on that computer
3. Connect your iPhone via USB
4. Install SideStore through AltServer
5. Never need that computer again

After that, entirely wireless:

• Install apps through SideStore's Wi-Fi browser
• Auto-refresh runs silently in background
• Add custom repos/sources
• Install LiveContainer for unlimited apps

Can I Use a Library or Work Computer?

Yes. You only need the computer for ~20 minutes during the initial SideStore install. You don't need to install anything permanently on the borrowed computer — AltServer can be run temporarily and removed.

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Step-by-Step: Scarlet Zero-Computer Setup (Quickest Start)

If you absolutely cannot access any computer, Scarlet is your fastest path:

1. Open Safari on your iPhone
2. Go to scarlet.ws (official Scarlet website)
3. Tap "Install Scarlet"
4. iOS prompts to install a configuration profile — tap Allow
5. Go to Settings → General → VPN & Device Management
6. Find the Scarlet profile → tap Trust
7. Open Scarlet from your home screen
8. Browse the built-in store or tap + to add an IPA from Files

Apps install immediately — no additional setup needed.

Important: The initial Scarlet certificate will eventually be revoked by Apple. When it is, re-install Scarlet using a fresh certificate from the same website. To permanently fix this, import your own developer certificate in Scarlet settings.

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Getting IPA Files Without a Computer

You need IPA files to install. Without a computer, here's how to get them:

Safari downloads: Many IPA sources allow direct Safari downloads. The file saves to your Downloads folder in Files.

AirDrop from another iPhone/Mac: If someone else has the IPA, AirDrop is instant and cable-free.

Built-in repos: Scarlet, KSign, and GBox all have built-in app browsers where you tap to download and install without needing separate IPA files.

SideStore sources: SideStore's community source has hundreds of apps you can install with one tap.

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Limitations of Computer-Free Sideloading

Certificate stability: The shared enterprise certs used for bootstrapping are more vulnerable to revocation than your own personal developer cert. Expect occasional re-installs after revocations.

JIT for emulators: StikDebug JIT requires a one-time pairing file from a computer. Without this, emulators run without JIT (slower). For casual retro gaming, it's fine. For N64/GameCube, you'll want JIT.

Update management: Updating apps is more manual than with SideStore's automated approach.

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FAQ

Q: Can I sideload on a work iPhone?Only if MDM (Mobile Device Management) allows it. Most corporate-managed iPhones block custom developer profiles. Check with your IT department.

Q: Do I need to keep Scarlet/KSign installed to keep apps running?The signing tool itself isn't needed to run already-signed apps. But you'll need it to re-sign apps when certificates expire. Keep at least one signing tool installed.

Q: Will these methods survive iOS updates?Generally yes. On-device signing continues working after iOS updates (you may need to re-trust certificates in Settings). Major iOS releases occasionally break specific tools temporarily until they're updated.

Q: Can I use my iPhone's Personal Hotspot to set up SideStore on another device?No — you need a physical USB connection for the initial AltStore/SideStore setup, not just Wi-Fi. After setup, everything is wireless.