Relaxin
Install guide · about 10 minutes
How to install Relaxin on iOS 17.0 – 17.3.1
Relaxin is distributed as an unsigned IPA. To run it you sign that file with your own Apple ID — on the phone itself with Lightning Sign or ZeeSigner, or over USB with Sideloadly. Everything below is written out in full, including the errors people hit.
Step 01
Check compatibility and freeze your iOS version
Open Settings → General → About. You need:
- Software Version between
17.0and17.3.1inclusive. - A device with an A15 Bionic chip or newer — iPhone 13 series and up, iPhone SE 3, or an M1/M2 iPad.
- At least 1 GB free storage for the bootstrap and package cache.
Then turn off automatic updates: Settings → General → Software Update → Automatic Updates, and switch off both toggles. Apple no longer signs iOS 17.3.1, so an accidental update is permanent.
Back up first
Take an iCloud or Finder backup before you start. Jailbreaking rarely costs you data, but "rarely" is not "never", and a backup takes five minutes.
Step 02
Download Relaxin.ipa
Not released yet
Relaxin has not been publicly released, so there is no IPA to download today. This page turns the download on automatically the moment the real build is out — meanwhile, check your device so you are ready. Ignore anyone offering a "Relaxin download" before then.
Download straight to the device you plan to jailbreak if you are signing on-device, or to your computer if you are using Sideloadly. Files are served directly — no link shorteners, no ad gates, no "verify you are human".
| Build | Size | SHA-256 | Download |
|---|---|---|---|
| Relaxin 1.0 latest | — | published on release |
Relaxin.ipa |
To verify the download on macOS or Linux:
shasum -a 256 Relaxin.ipaOn Windows: certutil -hashfile Relaxin.ipa SHA256. If the value does not match the table, delete the file and download again.
Step 03
Sign the IPA with your Apple ID
Three routes to the same result. Two run on the iPhone; one needs a computer. Pick one tab and follow it end to end.
| Tool | Runs on | Needs a PC? | Best for |
|---|---|---|---|
| Sign here ours | Safari, on-device | No | Fewest steps — nothing to install or sign up for |
| Lightning Sign | Safari, on-device | No | Fastest path, nothing to install |
| ZeeSigner | Safari, on-device | No | Managing several sideloaded apps and certs |
| Sideloadly | Windows / macOS | Yes, USB | Most reliable when signatures keep failing |
Route A — Sign it here (on-device, nothing to install)
Our own signer runs the signing engine inside your browser tab. You supply a certificate, it fetches the IPA, signs it and hands it to iOS. Nothing is uploaded unless you choose the direct-install option, and the page says so before it does.
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Open the signer on the iPhone you want to jailbreak
Use Safari. relaxin-jailbreak.com/sign — there is nothing to download first.
-
Pick your
.p12and enter its passwordThe page unlocks it locally and tells you straight away if the password is wrong, before anything else happens.
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Add the matching
.mobileprovisionIt reads the team name, expiry date and app ID out of the profile and shows them, so you can confirm you grabbed the right pair.
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Tap Sign, then install
Download the signed IPA, or let iOS install it directly. Then trust the certificate.
Route B — Lightning Sign (on-device, no computer)
Lightning Sign signs the IPA in the browser on the iPhone itself, so the file never leaves the device and you never open a laptop.
-
Open Lightning Sign in Safari
Go to the signer on the same iPhone you downloaded
Relaxin.ipato. Use Safari — third-party browsers on iOS can stall on the install prompt. -
Add your signing certificate
Upload a
.p12certificate and its.mobileprovisionprofile, or sign in with your Apple ID if the tool offers it. A free Apple ID gives you a 7-day signature; a paid developer account gives you a year. -
Select the Relaxin IPA
Tap the file picker and choose
Relaxin.ipafrom Files → Downloads. Leave the bundle ID as it is unless you are deliberately running two copies. -
Sign, then install
Tap sign and wait — signing a ~38 MB IPA on-device takes roughly 30–90 seconds. When the install prompt appears, tap Install and return to the home screen to watch the icon fill in.
If the install prompt never appears
Safari sometimes swallows the itms-services handoff. Reload the results page and tap install again, or long-press the install button and choose to open it. Keep the screen awake through the whole process.
Route C — ZeeSigner (on-device, certificate manager)
ZeeSigner also runs on the phone, but it keeps your certificates on file and reminds you before a signature lapses — worth it if you sideload more than one app.
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Open ZeeSigner on the target iPhone
Safari again. If ZeeSigner offers a home-screen web app, add it — it makes the seven-day re-sign cycle far less annoying.
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Import your certificate once
Add the
.p12and.mobileprovisionpair with its password. ZeeSigner stores it so future re-signs are two taps. -
Upload
Relaxin.ipaChoose the IPA from Files. Do not rename the file — some signers key their cache on the original name.
-
Sign and install
Start the signing job, wait for it to report success, then accept the iOS install dialog. The Relaxin icon lands on your home screen.
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Set a re-sign reminder
On a free Apple ID the app stops opening after seven days. Re-signing the same IPA with the same Apple ID keeps all jailbreak data intact.
Route D — Sideloadly (Windows or macOS, over USB)
The desktop route. It is the most forgiving when on-device signing keeps failing, and it is the one to use if your Apple ID has hit its app-ID limit.
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Install Sideloadly and iTunes drivers
On Windows, install Sideloadly plus the non-Microsoft-Store version of iTunes — the Store build ships without the drivers Sideloadly needs. On macOS nothing extra is required.
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Connect the iPhone and trust the computer
Use a data-capable cable. Unlock the phone, tap Trust on the prompt, and enter your passcode. Sideloadly should show your device in the dropdown.
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Drag
Relaxin.ipainto the windowEnter your Apple ID, then click Start. Sideloadly asks for your Apple ID password locally — if you have two-factor authentication on, generate an app-specific password at appleid.apple.com rather than typing your main one.
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Wait for "Done"
Sideloadly extracts, signs and installs in one pass — usually under two minutes. Do not unplug until it reports completion.
Free Apple ID limits
A free account allows ten app IDs per seven days and three sideloaded apps at a time. If Sideloadly reports a "maximum App ID" error, delete another sideloaded app or wait out the window.
Step 04
Trust the developer certificate
The icon is on your home screen, but tapping it shows "Untrusted Developer". That is expected — iOS wants explicit permission for apps signed outside the App Store.
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Open Settings → General → VPN & Device Management
On some builds this reads Profiles & Device Management.
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Tap your Apple ID under "Developer App"
It will be the email address you signed with, not "Relaxin".
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Tap Trust, then confirm
The entry turns green and reads "Verified". Relaxin now opens normally.
No Developer App section?
Connect to the internet and reopen Settings — iOS verifies the certificate against Apple's servers before showing the trust option. If it still is not there, the install did not finish; re-sign and install again.
Step 05
Run the jailbreak
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Open Relaxin
You get the splash screen: the wordmark, and a small readout of your
os,host,kernel,memanduptime. If the values match your device, the app has attached correctly. -
Tap "Options"
Expand the options list at the bottom of the splash screen. Defaults are sensible; leave them alone on your first run.
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Start the jailbreak and wait
The bootstrap installs and the device resprings once — the screen goes black and the home screen reloads. Do not lock the device or switch apps while it works.
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Check your home screen
Sileo, Filza and RootHide should now be there. Open Sileo; the source list should show Procursus (roothide) and refresh without errors.
▸ Tap options below to start
Living with it
What to do after every reboot
Relaxin is semi-untethered. When the phone restarts — whether you chose to or the battery died — the jailbreak is inactive until you re-enable it:
- Open the Relaxin app.
- Tap the jailbreak option.
- Wait for the respring. Your tweaks and packages come back exactly as they were.
Nothing is deleted by a reboot, and you never re-sign because of one. You only re-sign when the seven-day (or one-year) certificate expires.
When it goes wrong
Troubleshooting the common failures
Nearly every support message we get is one of these eight.
"Unable to Install" right after signing
Almost always a certificate problem: the profile expired, the .p12 password was wrong, or the bundle ID is already used by another sideloaded app. Re-sign with a fresh certificate, and delete any older copy of Relaxin first.
The app icon is greyed out or "Cleaning…"
iOS is mid-install or the install was interrupted. Wait two minutes; if the icon does not resolve, long-press to delete it, reboot, and install again.
"Untrusted Developer" and no Trust option in Settings
The device needs an internet connection to verify the certificate with Apple before the Trust entry appears. Connect to Wi-Fi, force-quit Settings, reopen it and look again under VPN & Device Management.
The app opens but the jailbreak button does nothing
Check the splash readout. If os shows 17.4 or higher, or host is an A14-or-older device, you are outside the supported range and no amount of retrying will help. If the values look right, reboot and try once more with airplane mode on.
Stuck on the respring / boot loop into the home screen
Hold volume-up, volume-down, then the side button to force a restart. The device boots unjailbroken and safe — nothing is broken. Open Relaxin and try again; if it fails twice, remove the bootstrap from the app's options before retrying.
Sileo shows repository errors on first refresh
Usually DNS or a partially written bootstrap. Toggle Wi-Fi, then pull to refresh in Sileo. If errors persist, remove the bootstrap from inside Relaxin and reinstall it — this does not require re-signing the IPA.
The app stopped opening after about a week
Your free-Apple-ID signature expired. Re-sign the same IPA with the same tool and Apple ID and install over the top. Do not delete the app first — deleting removes its container.
Sideloadly reports "maximum number of App IDs" reached
Free Apple IDs allow ten app IDs per seven-day window. Either wait for the window to roll over, use a different Apple ID, or switch to an on-device signer with an existing certificate.
Still stuck? Send us the exact error text and we will add it here.
Going back
Removing Relaxin completely
-
Remove the bootstrap from inside the app
Open Relaxin, expand Options, and choose the remove/restore option. This deletes
/var/jbalong with every tweak and package you installed. -
Delete the Relaxin app
Long-press the icon and remove it like any other app.
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Reboot
You are back on a completely stock iOS install. Because the jailbreak was rootless, the system partition was never modified — no restore or DFU needed.