TrueCrypt is not available for iPhone but there are some alternatives with similar functionality. The best iPhone alternative is Cryptomator, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to TrueCrypt and ten of them are available for iPhone so hopefully you can find a suitable replacement. Other interesting iPhone alternatives to TrueCrypt are AES Crypt, Tella, DriveLock File Protection and Zed!.
Cryptomator provides transparent, client-side encryption for your cloud. Protect your documents from unauthorized access. Cryptomator is free and open source software, so you can rest assured there are no backdoors.
Easily encrypt files with user-friendly software using the powerful AES standard for security on Windows, macOS, and Linux, featuring robust 256-bit encryption for safeguarding sensitive data from unauthorized access, ideal for secure data storage, email transmission, and internet uploads.
Tella is a mobile app designed to protect human rights defenders, advocates, and journalists by encrypting and hiding their sensitive data and safely uploading it to their organization's server.
DriveLock File Protection lets you encrypt your files with state-of-the-art encryption using AES-256.
Zed! protects your personal and sensitive data in encrypted archives on e-mail, on USB sticks and in backups.
KodeFile is an innovative key-on-demand encryption app that's easy and simple to use. You no longer have an excuse not to encrypt your sensitive documents, photos and videos. Few clicks...encrypt any file. Few clicks...share any file's encryption key.
With Secure Filebox you can securely store, organize, share files and have secure discussions (beta) behind a wall of encryption.
S.S.E. File Encryptor is a cross-platform encrypter/decrypter of files and folders.
Your personal document lock box. Securely stored and always at hand.
You can finally access your confidential documents from anywhere in the world - securely encrypted, perfectly synchronized, and amazingly practical - with DocWallet, the free document manager from Deutsche Pos.
Open-source backup software using client-side zero-knowledge encryption ensures data privacy, supports multiple object storage providers, preserves folders, detects duplicates locally, enables direct-to-cloud uploads, avoids tracking, and exposes only encrypted metadata.
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Truecrypt is no more. Try the more updated and secure VeraCrypt. Both of those are for making an encrypted container into which files are placed. Cryptomator is different: it encrypts file-by-file (makes an encrypted version of each file). This enables you to sync/backup encrypted versions of your files to the cloud, which the TrueCrypt/VeraCrypt approach doesn't. Cryptomator thus fulfills a different need than does TC/VC.