Compare the Top Email Encryption Apps for Android as of December 2025

What are Email Encryption Apps for Android?

Email encryption software ensures the confidentiality and integrity of email communications by converting messages into unreadable formats that can only be decrypted by authorized recipients. It uses encryption protocols such as S/MIME and PGP to protect sensitive information from interception, eavesdropping, and unauthorized access. The software helps organizations comply with data privacy regulations like GDPR, HIPAA, and CCPA by securing emails containing personal or financial information. Email encryption can be applied at the message level, attachment level, or entire inbox, providing versatile protection for both internal and external communications. By safeguarding email content, businesses can reduce the risk of data breaches, maintain customer trust, and avoid costly compliance fines. Compare and read user reviews of the best Email Encryption apps for Android currently available using the table below. This list is updated regularly.

  • 1
    Mailfence

    Mailfence

    Mailfence

    Mailfence is an encrypted email service that offers OpenPGP based end-to-end encryption and digital signatures. Mailfence comes with a plethora of features that boost collaboration without compromising security and convenience. Mailfence documents allow you to safely store and edit documents, you can also share docs with your team with the push of a button. Mailfence calendar will keep your tasks, meetings, and events all in one secure place. Mailfence contacts will store your contacts and it will give you the ability to create mailing lists to maximize efficiency. We designed Mailfence to be a fully interoperable suite, which means you can synchronize Mailfence with most services out there. Mailfence business offers fully customizable whitelabel versions of the Mailfence interface. To put the cherry on top, Mailfence donates 15% of revenues of PRO subscriptions to IFF and EDRI to bolster the fight for Online privacy.
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    Starting Price: $2.50/month/user
  • 2
    Spike

    Spike

    Spike

    Spike brings your entire workspace into your Inbox: email, chat, calendar, calls, team collaboration, tasks — to one powerful Inbox. Everything you need to get your work done is in a single feed, so you can finally give the app-switching a rest. Spike’s conversational email fuses traditional email with instant messaging — eliminating cluttered email threads. With real-time conversations and live collaboration, have better interactions and a more human communication experience. Spike is available on iOS, Android, Mac, Windows & Web.
    Starting Price: Free
  • 3
    Z1 SecureMail Gateway
    25% of the 100 German companies with the highest turnover choose Zertificon. Z1 SecureMail Gateway is our highly automated Enterprise Email Encryption solution for effortless, secure communications with anyone, anywhere. Your entire organization encrypts and decrypts, just as well manages & verifies email signatures smoothly in the background. Z1 SecureMail Gateway requires minimal maintenance. And the browser-based admin interface needs no special skills. Keys are managed automatically & central policies enforce security. Integration is fast into your Cloud or On-premises email infrastructure. Your workflows and business are uninterrupted — no employee training needed plus frictionless experience for recipients. With Z1 SecureMail Gateway, encryption is centrally configurable and proofed against human error. You easily achieve and maintain compliance and the highest security standards. You also own all encryption keys and attain German-engineered data sovereignty with no backdoors.
    Starting Price: from $ 1.50 per user/per month
  • 4
    Ziroh Mail

    Ziroh Mail

    Ziroh Labs

    Even if you don’t exchange confidential emails, doesn't it bother you that your email service provider has a backdoor to your emails? They can open it to any third party, anytime. They create the rules after all, with the loopholes. Do you know what a single eCommerce receipt can reveal about you? Your taste in clothes, the money in your wallet, your preferred method of payment, where you live, which device you use, and so on. Alarming isn’t it? Well, thousands of companies and scammers already are. Every little detail about you is invaluable to third parties, they will use it to get to know you better, manipulate you to buy their products and services, and sometimes impersonate you online. If you think that your email platform is foolproof, just do a simple search. All major email platforms have been hacked. Still, feel secure? A quick, easy, non-intrusive privacy layer that protects your emails wherever they are, and wherever they reach.
  • 5
    MsgSafe.io

    MsgSafe.io

    MsgSafe.io

    Instantly create as many email addresses as you need - each associated with their own group of contacts. Share addresses with anyone, but keep your real email address private. Stop telecom companies, governments, and hackers from seeing with whom you communicate. Each virtual mailbox is automatically set up with 4096-bit GPG and S/MIME encryption keys and certificates. All email stored at MsgSafe-io is encrypted. You can manage the encryption profile for each contact you communicate with. Protect your entire family or organization by managing all identities and email addresses with the domain you already own. If you don’t own a domain, you can use our domain registration services to purchase a domain integrated with MsgSafe-io and privacy protection. You don’t trust FaceTime, Skype, Duo, Hangouts and similar services hosted by companies like Apple, Microsoft and Google? Try our secure and private audio and video services. You can invite people to call you from a browser link.
    Starting Price: $5 per month
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