CokePokes/LetraInstaller

选用指南

AI 根据 README 整理 · 2026/10/29 23:16:17

适用场景

适用于需要在 iOS 设备上直接签名和安装 IPA 文件的场景，支持注入插件、修改应用元数据，并可通过 TrollStore 或 LocalDevVPN 安装。

查看 README 依据

<p align="center"> <img src="docs/screenshots/icon.png" width="128" alt="Letra icon"> </p> <h1 align="center">Letra</h1> <p align="center"> An on-device IPA signer and installer for iOS. Inject tweaks, re-sign with your Apple ID or ad hoc, and install — no computer required. </p> <p align="center"> <img src="docs/screenshots/home.png" width="250" alt="Home screen"> <img src="docs/screenshots/configure.png" width="250" alt="Configure screen"> <img src="docs/screenshots/result.png" width="250" alt="Signing result"> </p> --- ## Features - **Sign IPAs on device** with either:

- **Apple ID** — a free Personal Team or paid developer account. Letra creates the certificate, registers your device, and downloads provisioning profiles for you. - **Ad Hoc** — for installation through TrollStore. - **Tweak injection** — add `.dylib` files or import `.deb` packages; resource bundles inside the package are included automatically. - **Entitlements** — keep the app's embedded entitlements or pick your own `.plist`. - **App extensions** — keep, remove, or choose individual extensions, and sign retained ones with the main profile or their own.

- **App metadata** — change the display name, bundle identifier, and version before signing. - **Two ways to install** - **TrollStore** — one-tap handoff for ad hoc builds. - **LocalDevVPN** — install Apple ID-signed apps directly on device using your Remote Pairing file. - **Apps library** — every app installed through Letra is saved so you can **Resign & Reinstall** before the free 7-day profile expires. - **Stay signed in** — optionally store your Apple ID password securely in the device Keychain so expired sessions renew in the background while re-signing.

使用方式

通过图形界面操作，选择 IPA 文件，配置签名选项，然后签名并安装。

查看 README 依据

After that, Letra keeps itself up to date — see [Updates](#updates). --- ## Usage ### Sign and install an app <p align="center"> <img src="docs/screenshots/configure-metadata.png" width="250" alt="App details"> <img src="docs/screenshots/configure-options.png" width="250" alt="Signing options"> </p> 1. Tap **Choose IPA** on the home screen and pick an `.ipa` file. 2. On the **Configure** screen, choose the signing method at the top: **Ad Hoc** or **Apple ID**. 3. Optionally: - Turn on **Tweak Injection** and add `.dylib` or `.deb` files. - Choose an **Entitlements** file.

- Edit the app name, bundle identifier, or version. - Pick which **App Extensions** to keep. 4. Tap **Sign**. 5. When signing finishes, choose how to install: - **Install with TrollStore** (Ad Hoc) - **Install with LocalDevVPN** (Apple ID) - **Save to Files** to keep the signed IPA ### Sign in with your Apple ID <p align="center"> <img src="docs/screenshots/apple-account.png" width="250" alt="Apple Account"> </p> 1. Tap the account icon in the top-right of the home screen. 2. Enter your Apple ID and password.

部署要求

需要 iOS 15.0 或更高版本。Ad Hoc 签名需要 TrollStore；Apple ID 签名需要 Apple ID、LocalDevVPN 和 Remote Pairing 文件；从 Telegram 获取 IPA 需要 Telegram 账户。

查看 README 依据

- **Get IPA from Telegram** — sign in to Telegram inside Letra, paste an App Store link, and the IPA returned by the bot opens straight into the signing flow. - **Automatic updates** — Letra checks for new releases, shows what's new, and installs the update for you. --- ## Requirements - iOS 15.0 or later - **For Ad Hoc signing:** [TrollStore](https://github.com/opa334/TrollStore) - **For Apple ID signing:** an Apple ID, plus [LocalDevVPN](#localdevvpn-setup) and a Remote Pairing file to install - **For Get IPA from Telegram:** a Telegram account --- ## Installation

已知限制

免费 Apple ID 配置文件有效期为 7 天，需要重新签名。配对文件可能在 iOS 更新或设备重置后失效。

查看 README 依据

<img src="docs/screenshots/apps.png" width="250" alt="Apps library"> </p> --> Free Apple ID profiles last 7 days. 1. Open the **Apps** tab. 2. Tap an app and choose **Resign & Reinstall**. Letra re-signs the saved copy with a fresh profile and installs it again, keeping your tweaks and settings. With **Stay signed in** on, an expired Apple session is renewed in the background — the only prompt you might see is a verification code. ### Install an already-signed IPA Tap **Install a Signed IPA** under **Options** on the home screen, pick the file, and choose an install method.

Letra also reads your device's UDID from the pairing file, so you can skip the UDID profile step during Apple ID setup. ### 3. Install apps Turn on **LocalDevVPN**, then choose **Install with LocalDevVPN** after signing. > **Note:** A pairing file can stop working after an iOS update, a device reset, or occasionally on its own. If installs start failing, create a new pairing file and import it again. --- ## Updates <!-- Screenshot: docs/screenshots/update.png (update sheet) <p align="center"> <img src="docs/screenshots/update.png" width="250" alt="Update available"> </p> -->