SMIME Toolkit: S/MIME Setup

SMIME Toolkit: S/MIME Setup

Sign & Encrypt mail quickly

2 ratings
4 reviews
$2.99

Details

  • Released
  • Updated
  • January 27, 2026
  • May 3, 2026

Features

SMIME Toolkit: S/MIME Setup screenshot #1 for iPhone
SMIME Toolkit: S/MIME Setup screenshot #2 for iPhone
SMIME Toolkit: S/MIME Setup screenshot #3 for iPhone
SMIME Toolkit: S/MIME Setup screenshot #4 for iPhone
SMIME Toolkit: S/MIME Setup screenshot #5 for iPhone
SMIME Toolkit: S/MIME Setup screenshot #6 for iPhone
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About

This app simplifies the process of setting up S/MIME for secure email on your iPhone and iPad. It guides you through generating keys, requesting certificates, and exporting your identity for manual installation in Apple Mail.

On-device key generation
Standards-compliant CSR creation
Secure certificate requests
PKCS#12 (.p12) identity export
Face ID/Touch ID protection
Manual installation guidance
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What's New in SMIME Toolkit

1.16

May 3, 2026

Added optional ECC P-384 (secp384r1) support while keeping RSA-2048 as the default for compatibility. Added a "generate both" option to create RSA + ECC identities together when needed. Improved trust profile/export flows for dual-identity setups. Fixed share/export reliability issues and improved overall setup guidance.

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User reviews

Secure S/MIME Setup Made Simple on iPhone

SMIME Toolkit made S/MIME email setup on iPhone fast and hassle-free. The app is intuitive, privacy-focused, and excellent for generating encryption keys and certificate signing requests (CSR). A must-have for anyone who wants secure, encrypted email and digital signing on iOS! ★★★★★

Response from developer

Thank you. Very much appreciate your review. If you need anything let us know.

Great solution

Normally you have to pay a CA a yearly subscription to get your email encrypted. With this app you can sign and encrypt your mail (with any provider or app) for the cost of buying the app. That’s crazy! Highly recommend you buy this app.

Finally an easy solution

Unlimited certificates for email encryption for less than the cost of one certificate? No brainer.

Funktioniert einwandfrei

Nach kurzer Rücksprache mit dem Support (sehr schnelle und nette Rückmeldung) hat es mit dem Export gut funktioniert.👍🏼

Response from developer

Das freut mich sehr zu hören! 😊 Vielen Dank fürs Teilen deiner Erfahrung – besonders schön, dass der Support so schnell und hilfreich war. Falls du noch weitere Fragen hast oder etwas unklar ist, melde dich jederzeit gern!

Developer apps

FAQ

How do I set up SMIME Toolkit?

SMIME Toolkit guides you through the S/MIME setup process step-by-step. You'll enter your email, generate a key pair and CSR on your device, request a certificate from your signing service, and then export your identity (.p12) for manual installation in your iOS Settings.

Does SMIME Toolkit configure Apple Mail automatically?

No, SMIME Toolkit does not configure Apple Mail automatically. iOS requires manual installation of S/MIME identities. Once installed, you can enable signing and encryption within Apple Mail's settings.

Is my private key safe with SMIME Toolkit?

Yes, your private key is generated and stored securely on your device using Keychain. It never leaves your device, ensuring your sensitive information remains under your control.

What devices does SMIME Toolkit support?

SMIME Toolkit is compatible with both iPhone and iPad devices running iOS.

How often is SMIME Toolkit updated?

The app was last updated on May 3, 2026, indicating recent development and support. Updates typically address compatibility, security, and feature enhancements.

What is the price of SMIME Toolkit?

SMIME Toolkit is a paid application priced at $2.99. This one-time purchase grants you access to its full suite of S/MIME setup features.

Does SMIME Toolkit have ads?

No, SMIME Toolkit is ad-free. The app is designed to provide a clean and uninterrupted user experience focused solely on S/MIME setup.

What age rating is SMIME Toolkit?

SMIME Toolkit has an age rating of 4+. This indicates it is suitable for users of all ages and does not contain mature or inappropriate content.