Install Summertime Saga on your iPhone or iPad without jailbreak. Full sideload guide using AltStore or Sideloadly — compatible with iOS 13 and above.
| App Name | Summertime Saga |
|---|---|
| Version | v24.0.0 |
| File Type | IPA |
| Developer | Kompas Productions |
| Content Rating | 18+ / NSFW |
| Languages | 72+ Supported |
| Requires | iOS 13.0+ |
| Jailbreak | Not Required |
| Install Method | Sideload (AltStore / Sideloadly) |
| Internet Required | No — fully offline |
Yes — Summertime Saga runs on iPhone and iPad without any jailbreak. The installation method is called sideloading, which lets you install IPA files that are not distributed through the App Store.
The two most reliable tools for this are AltStore and Sideloadly. Both are free, work on Windows and Mac, and do not require a paid Apple Developer account. You will need a computer for the initial setup, but the game runs completely independently on your device once installed.
The main thing to know upfront: free Apple certificates used for sideloading expire every 7 days. You need to refresh the certificate weekly using your sideloading tool. AltStore can automate this refresh in the background if your phone and computer share the same Wi-Fi network.
Everything required to sideload Summertime Saga on iPhone or iPad.
Sideloading on iOS is straightforward but it does require a few things in place before you begin. Unlike Android where you just enable a toggle and install an APK, iOS sideloading involves your computer as an intermediary — at least for the first install and each certificate refresh.
Here is everything you need:
Both tools are free and work without jailbreak. Here is the practical difference.
The most user-friendly option. AltStore runs in the background on your computer and automatically refreshes your certificate over Wi-Fi every 7 days — no manual steps needed after initial setup.
A lightweight desktop tool that gives you more control over the signing process. Better for users who prefer manual management or are troubleshooting issues with AltStore. Slightly more technical.
For most users, AltStore is the better choice — the automatic Wi-Fi refresh means you only go through the full setup process once. If you have already used AltStore for other apps and are comfortable with it, you can skip straight to the installation steps below.
If AltStore is giving you trouble with iTunes or iCloud detection, Sideloadly is a solid fallback that handles IPA signing independently with fewer dependency issues on Windows.
Complete walkthrough from download to launch. Takes around 10 minutes on first setup.
On Windows, install the non-Microsoft Store versions of iTunes and iCloud directly from Apple's website. AltStore requires these specific versions — the Microsoft Store builds do not work. On Mac, you can skip this step entirely.
Download AltStore from the official site (altstore.io). On Windows, run the installer. On Mac, drag AltStore to your Applications folder and launch it — it will appear in your menu bar. Sign in with your Apple ID when prompted. This is the Apple ID used to sign the certificate; use one you are comfortable with.
Connect your iPhone or iPad to your computer using a Lightning or USB-C cable. Unlock your device and tap "Trust" on the "Trust This Computer?" prompt. Open iTunes (Windows) or Finder (Mac) and confirm your device is visible. Do not disconnect during the install.
In the AltStore menu bar icon, click "Install AltStore" and select your device from the list. Enter your Apple ID and password when asked. AltStore will push a small companion app to your iPhone — this is what handles future IPA installs and certificate refreshes.
On your iPhone, go to Settings → General → VPN & Device Management. Find the entry under your Apple ID email and tap "Trust". Without this step, iOS will block the app from opening. This is a standard iOS security prompt for any sideloaded app.
Open AltStore on your iPhone. Tap the My Apps tab, then the + button in the top-left corner. Navigate to the Summertime Saga IPA file you downloaded earlier. AltStore will sign and install the game. Installation takes 1–3 minutes depending on your device speed.
Using Sideloadly instead? Open Sideloadly, connect your device via USB, drag the IPA file into the Sideloadly window, enter your Apple ID, and click Start. The signing and installation process runs automatically. After install, go to Settings → General → VPN & Device Management and trust the certificate — same final step as AltStore.
App limit: Free Apple IDs can have a maximum of 3 sideloaded apps active at one time. If you hit the limit, you need to remove an existing sideloaded app before installing another. A paid Apple Developer account removes this restriction.
Free Apple developer certificates expire every 7 days. When the certificate expires, the game icon stays on your home screen but the app will not open — you will see an "Unable to verify app" message instead.
To fix this, re-connect your device to your computer, open AltStore or Sideloadly, and refresh the certificate. The game and your save data are unaffected — only the certificate is renewed. With AltStore on the same Wi-Fi as your iPhone, this refresh can happen automatically in the background without any action from you.
The issues most people run into, and exactly how to resolve them.
Your certificate has expired. Connect your iPhone to your computer, open AltStore or Sideloadly, and refresh the certificate. Go to Settings → General → VPN & Device Management and re-trust the profile after refreshing.
On Windows, uninstall iTunes and iCloud from the Microsoft Store and reinstall them using the direct download from Apple's website (apple.com/itunes). AltStore is specifically incompatible with the Microsoft Store versions — this is the most common setup issue on Windows.
Unlock your device and tap "Trust" on the Trust This Computer prompt. If the prompt does not appear, try a different USB cable or USB port. Restart both your iPhone and computer. On Windows, make sure Apple Mobile Device Support is installed — it comes bundled with iTunes.
Free Apple IDs are limited to 3 sideloaded apps simultaneously. Open AltStore on your iPhone, go to My Apps, and delete a sideloaded app you no longer need. This frees up a slot. Alternatively, upgrading to an Apple Developer account removes this limit entirely.
This is usually a storage issue. The game needs approximately 2 GB of free space. Check Settings → General → iPhone Storage and clear space if needed. If storage is fine, try deleting the app and reinstalling the IPA fresh — the certificate signing occasionally gets corrupted on older iOS versions.
AltStore background refresh requires your iPhone and computer to be on the same Wi-Fi network with AltStore running. Make sure AltStore is open in your Windows system tray or Mac menu bar. If auto-refresh consistently fails, manual refresh via USB once a week is the reliable fallback.
Yes. No jailbreak is needed. The game is installed using a method called sideloading — you sign the IPA file with a free Apple developer certificate using AltStore or Sideloadly on your computer, then push it to your iPhone over USB. The entire process uses Apple's official signing infrastructure; no exploits or jailbreak tools are involved.
Free Apple ID certificates expire after 7 days. When they expire, the game icon remains on your home screen but the app will not open. You need to refresh the certificate every 7 days using AltStore or Sideloadly. AltStore can automate this refresh if your iPhone and computer are on the same Wi-Fi network with AltStore running. Your save data and game progress are completely unaffected by certificate refreshes.
AltStore and Sideloadly both use Apple's standard app-signing process — the same mechanism Apple uses for their own TestFlight beta platform. Your Apple ID credentials are used locally on your computer to generate the certificate; they are not stored or transmitted by the sideloading tool. Many users create a secondary Apple ID specifically for sideloading if they prefer to keep their primary account separate. Both approaches work fine.
No. Refreshing the certificate does not affect your save data. The certificate refresh is a re-signing operation on the app binary — it does not touch the game's local storage or documents folder where saves are kept. You can refresh as many times as needed without any impact on your progress.
Any iPhone running iOS 13 or higher is compatible. This includes the iPhone 6s, SE (1st gen), 7, 8, X, XS, XR, 11, 12, 13, 14, and 15 series. For iPads: iPad Air 2 and later, iPad mini 4 and later, all iPad Pro models, and iPad 5th generation and later. The game runs well on older devices; a 64-bit processor and iOS 13 are the only hard requirements.
Cross-platform save transfers are not officially supported. The iOS save format is stored in the app's sandboxed Documents folder and uses a different file structure than the Android or PC versions. Direct copying between platforms generally does not work without a save conversion tool. If you plan to switch platforms, starting a fresh save on the new platform is the most reliable approach.
No. Once installed, the game plays entirely offline. There is no login system, no cloud sync, and no server-side content. Internet is only needed to download the IPA file and to refresh the certificate every 7 days. During gameplay — including all story routes, scenes, and mini-games — no connection is required.
The most common causes are low storage (free up space to at least 2 GB), an expired certificate (refresh it via AltStore or Sideloadly), or a corrupted install. Force-close the app and reopen it first. If that does not help, delete the app, re-download the IPA, and reinstall — your save data is stored separately and will not be lost as long as you do not manually delete the app's data folder.
Looking for a simpler install? Android is a single APK tap. PC runs natively on Windows and Mac.
Direct APK install. Enable unknown sources, tap the file, done. No computer needed, no certificate expiry. The MOD APK unlocks all content from the start.
Native executable for Windows 7+ and macOS. Best visual experience on a large screen. No certificate issues, no expiry — install once and play.