Best Third-Party App Stores for iPhone Ranked 2026
Apple’s App Store is no longer the only way to get apps onto an iPhone, and in 2026 there are more alternatives than ever. From computer-based tools like AltStore to on-device installers like Scarlet iOS, the third-party app store ecosystem has matured significantly. This guide ranks the best options based on app library, ease of installation, reliability, iOS compatibility, and safety, and explains the trade-offs behind each one. For a head-to-head of Scarlet iOS against each option, see Scarlet iOS vs every alternative.
Quick Comparison
| Tool | Computer needed | Apple ID needed | How apps stay installed | Best for |
|---|---|---|---|---|
| Scarlet iOS | No | No | Signed with an enterprise certificate; can be revoked by Apple | Most users, on-device installs |
| AltStore (classic) | Yes (AltServer) | Yes | Re-signed every 7 days with your Apple ID | Users who want apps tied to their own account |
| Sideloadly | Yes (Windows or macOS) | Yes | Re-signed every 7 days with a free Apple ID | Installing your own IPA files from a computer |
| TutuApp, AppValley, GBox | No | No | Enterprise or shared certificates; can be revoked | Backup options, specific libraries |
| TrollStore | Only for some install methods | No | Permanent, no revocation | Devices on iOS 14.0 to 16.6.1 or 17.0 |
| EU marketplaces (AltStore PAL, Epic Games Store) | No | Yes (your normal account) | Official Apple process, no revocations | Users in the EU (iOS 17.4+), Japan (iOS 26.2+) and Brazil |
How Third-Party App Stores Work
Every app on an iPhone has to be signed with a certificate Apple accepts. Third-party stores differ mainly in whose certificate they use, and that one detail decides how often your apps stop opening:
- Enterprise certificate stores (Scarlet iOS, TutuApp, AppValley, GBox): the store signs apps for you, so you install everything on the iPhone itself. The downside is that Apple can revoke the certificate, which stops apps from opening until the store re-signs them. Our guide on what to do when a certificate is revoked covers the fix.
- Personal Apple ID signing (AltStore classic, Sideloadly): apps are signed with your own free Apple ID. They are not affected by mass revocations, but free accounts must re-sign apps every 7 days and Apple limits them to 3 active sideloaded apps at a time. We compare these tools in free sideloading tools compared.
- Your own developer certificate (Feather, KSign): on-device signers that use a certificate from a paid Apple Developer Program account. Other people’s use cannot get it revoked, but you have to buy and import the certificate yourself; see our Feather vs Scarlet iOS comparison.
- Exploit-based permanent installs (TrollStore): a CoreTrust bug lets apps install permanently, but only on iOS 14.0 to 16.6.1 and iOS 17.0. Apple fixed it in later versions.
- Official EU marketplaces: since iOS 17.4, users in the European Union can install approved alternative app marketplaces. These are fully supported by Apple, but they only work in the EU and only carry apps that passed Apple’s notarization.
Ranking Criteria
Each tool is evaluated on five dimensions:
- App Library: Size and quality of available apps and games
- Ease of Use: How simple it is to install and use for non-technical users
- Reliability: How often apps stop working due to certificate issues or app breakage
- iOS Compatibility: Support for current iOS versions including iOS 26
- Safety: Vetting of app sources and protection against malware
1. Scarlet iOS: Best Overall
Scarlet iOS ranks first for 2026 because it combines a built-in app library, a simple installation process that runs entirely on the iPhone, and iOS 26 compatibility (iOS 27 support is reported by third parties but not officially confirmed). You do not need a computer or an Apple ID. The built-in library and repo support give access to tweaked apps, modded games, emulators, and utilities, and you can add your own IPA libraries and repositories. What the library contains changes over time, so check that an app is listed before you rely on it (see what is confirmed about Scarlet).
To try Scarlet iOS yourself, start from our Scarlet iOS install page.
Watch out for: like every enterprise-signed store, Scarlet can be hit by certificate revocations. After installing, you also need to trust the profile once; see how to fix the Untrusted Developer error if apps will not open. If Scarlet is down after a revocation, see the best alternatives to Scarlet iOS.
Get started at scarletios.com.
2. AltStore: Best for Developers
AltStore is the most technically robust option for users willing to run the AltServer companion app on a Mac or PC. It uses your personal Apple ID to sign apps, so your apps are tied to your account and are not affected when an enterprise certificate is revoked. With a free Apple ID, apps must be refreshed every 7 days; AltStore does this automatically when your iPhone is on the same Wi-Fi network as the computer running AltServer. Free accounts are limited to 3 active sideloaded apps. AltStore’s own source carries only a few apps, such as Delta and Clip; you add other sources for more. Requires a computer.
In the EU, Japan and Brazil, the separate AltStore PAL is an official Apple-approved marketplace that works without a computer on iOS 17.4 and later.
3. Sideloadly: Best Computer-Based Signing Tool
Sideloadly is not a traditional app store; it is a signing tool for Windows and macOS that installs any IPA file you give it. It is widely seen as the successor to Cydia Impactor, and it can install over Wi-Fi once your device has been set up with a cable. The same free Apple ID limits apply: 7-day signing and 3 active apps. It has no app library of its own, so you bring your own IPA files. Best for users who prefer to control signing from a computer.
4. TutuApp: Large Library, Variable Quality
TutuApp offers a large third-party iOS app library, including many tweaked versions and region-exclusive titles. However, its quality control is inconsistent: some apps in the library are outdated or poorly maintained, so check where an app comes from before installing it. The installation experience is similar to Scarlet’s, and it has historically offered a free tier and a paid VIP tier. Stores in this category come and go and Apple has acted against their certificates before, so check that the service is still active before relying on it. See our Scarlet iOS vs TutuApp comparison for details.
5. AppValley: Decent Mid-Tier Option
AppValley occupies a middle ground: a decent app library, a straightforward installation process, and enterprise signing that is subject to revocations like the rest of this category. It does not excel in any single area but is competent across most of them. Worth knowing about as a backup, but not the first choice for most users. More in Scarlet iOS vs AppValley.
6. TrollStore: Best for Supported iOS Versions
TrollStore earns its place for users on compatible iOS versions (iOS 14.0 to 16.6.1, and iOS 17.0) because its permanent installation model is technically superior: apps installed with TrollStore never expire and cannot be revoked. However, iOS 16.7 and later 16.x releases, iOS 17.0.1 and later, and every newer major version are not supported, which rules it out for most current iPhones. For older devices staying on a supported version, it is the most reliable option available. Compare it in detail in Scarlet iOS vs TrollStore.
7. GBox: Niche but Useful
GBox focuses mainly on games and modded apps. If gaming is your primary sideloading use case, its library can be worth having alongside Scarlet. For broader app needs, Scarlet iOS is more capable. For a closer look, see Scarlet iOS vs GBox. Running two stores side by side is possible; see how to install multiple app stores on iPhone.
Official Alternative Marketplaces in the EU
If you live in the European Union, Apple’s Digital Markets Act changes let you install approved alternative marketplaces directly from Safari on iOS 17.4 or later. AltStore PAL and the Epic Games Store are the best-known examples. These marketplaces are the safest route because every app is notarized by Apple and nothing gets revoked, but they only carry apps that meet Apple’s rules, so tweaked and modded apps are not available there. In Japan, Apple has allowed alternative marketplaces since iOS 26.2 (December 2025), and Apple’s support page now lists Brazil as well; elsewhere these marketplaces do not install. Our overview of EU sideloading changes explains the rules.
Tools to Avoid in 2026
Be careful with any store or website that shows these warning signs:
- Websites that ask for your Apple ID password in a web form (tools like AltStore and Sideloadly sign in through their own apps; using a secondary Apple ID with them is still the safer choice)
- Stores with no community presence, no update history, and no identifiable developers
- Tools promising paid apps for free from unknown sources with no review system
Whatever store you use, it is worth knowing how to scan IPA files for malware and reading our privacy guide for third-party app stores.
Frequently Asked Questions
Are third-party app stores legal?
Installing apps outside the App Store is legal in most countries, and in the EU Apple is required to allow it. What can be illegal is downloading pirated copies of paid apps, so stick to free, open-source, or legitimately distributed apps.
Will a third-party app store void my warranty?
None of the tools in this ranking require a jailbreak. They install apps through certificates or, for TrollStore, a system bug, and they can be removed like any other app or profile.
Why do apps from third-party stores suddenly stop opening?
Usually because Apple revoked the certificate the app was signed with, or because a 7-day Apple ID signature expired. Enterprise-signed stores re-sign apps after a revocation; with AltStore or Sideloadly you refresh the app from your computer.
Which third-party app store works without a computer?
Scarlet iOS, TutuApp, AppValley, and GBox install everything on the iPhone. In the EU, Japan and Brazil, official marketplaces such as AltStore PAL also work without a computer.
Which Should You Choose?
For most iPhone users in 2026, Scarlet iOS is the right choice: it supports iOS 14 through iOS 26, requires no computer or Apple ID, and has a built-in library plus support for repos and your own IPA files. Add AltStore if you want a computer-based backup, and TrollStore if your device is on a compatible iOS version. Users in the EU, Japan or Brazil who only need apps that Apple allows can use an official marketplace. Read the detailed comparison of AltStore vs Scarlet iOS vs Sideloadly for a deeper dive into the top three tools, or see the top 5 ways to install apps outside the App Store for methods beyond app stores.