Authenticator+ vs CRT Viewer & Convert PEM PFX
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Authenticator+
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Authenticator+ is no longer actively maintained. We've built its successor: Keylet โ 2FA Authenticator. Same makers, everything you're used to, but faster, fully private (nothing leaves your device), with passkey support and NO ads. Import your existing codes in one tap. Search "Keylet" on the App Store to make the switch.
CRT Viewer & Convert PEM PFX
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The best offline CRT Viewer tool for all. Read CRT, CER (etc) convert PEM to PFX, or use the CSR generator to create a certificate signing request securely. No servers. Empower your IT workflow with the most secure and comprehensive certificate tool designed for professionals. Whether you are a system administrator, DevOps engineer, or developer, handling SSL certificates on mobile has never been easier or more secure. Our app works 100% offline, ensuring your sensitive private keys and company certificates never leave your device. > KEY FEATURES: โข Advanced CRT Viewer & CER Viewer Instantly open, read, and inspect certificate details. Whether you need a reliable CRT viewer or a fast CER viewer, you can decode file contents, check expiration dates, and verify issuers locally without any internet connection. โข Ultimate Certificate Converter Stop relying on insecure web tools. Easily perform complex conversions on the go: โข Convert PEM to PFX (PKCS#12) โข Convert CRT to PEM or PFX โข Convert PFX to PEM โข Seamlessly handle OpenSSL PFX conversions with a few taps. โข Professional CSR Generator Need to request a new SSL certificate? Use our built-in CSR generator to create a certificate signing request directly from your phone. โข Generate CSR OpenSSL compatible files instantly. โข Create CSR and private keys simultaneously. โข Easily export your CSR certificate and cert signing request to send to your Certificate Authority (CA). โข WHY CHOOSE US? โข 100% Offline & Secure: No cloud servers, no data logging. Your CSR security certificate and private keys are generated and stored strictly on your device. โข OpenSSL Compatible: Generate a CSR using OpenSSL standards to ensure full compatibility with GoDaddy, DigiCert, and other major providers. โข All-in-One IT Tool: From a simple SSL cert request to a complex CSR request for SSL certificate generation, everything you need is in your pocket. Take control of your digital security. Create a certificate request, view files, and convert formats with the ultimate offline tool for IT professionals.
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Verdict
The clearest difference is in-app purchases: Authenticator+ at none against CRT Viewer & Convert PEM PFX's 3. Authenticator+ also leads on iOS requirement (13.0 vs 15.0). CRT Viewer & Convert PEM PFX's advantage is update cadence (every 11 days vs every 16 months) and device support (4 vs 2). On price and ads there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. CRT Viewer & Convert PEM PFX sells 3 in-app purchases, starting at $7.99 per 7 days. Authenticator+ asks for nothing beyond the download.
Authenticator+ ships an update every 16 months, CRT Viewer & Convert PEM PFX every 11 days. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.
| Parameter | Authenticator+ | CRT Viewer & Convert PEM PFX |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 16 months | Every 11 days โ better |
| Ads | Yes | Yes |
| In-app purchases | No โ better | Yes |
| Devices | iPhone, iPod | iPhone, iPad, iPod, Mac โ better |
| Requires iOS | 13.0 โ better | 15.0 |
| Further details โ not scored | ||
| Size | 20 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Studio Fifteen | OMER FARUK KIZILTUG |
In-app purchases
Authenticator+
No in-app purchases
CRT Viewer & Convert PEM PFX
- Weekly Premium3 Days trial$7.997 Days
- Yearly Premium$49.991 Year
- Lifetime Access$89.99
Questions
Is Authenticator+ free?
Is CRT Viewer & Convert PEM PFX free?
Do Authenticator+ or CRT Viewer & Convert PEM PFX have ads?
Which is updated more often, Authenticator+ or CRT Viewer & Convert PEM PFX?
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