GCM Mail vs Priyo Authenticator
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
GCM Mail
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GCM Mail β One Inbox. All Your Accounts. GCM Mail brings all your emails together in one powerful, secure, and beautifully designed app. Connect your Gmail, Outlook, Hotmail, Office 365, Exchange, and other IMAP or POP3 accounts β and manage everything seamlessly in a single inbox.
Priyo Authenticator
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Priyo Authenticator: Your Simple, Free & Fortress-Strong 2FA Key Tired of password headaches and fearing hacks? Priyo Authenticator is your personal shield, adding an essential second layer of security to your online accounts with time-based one-time passwords (TOTP). Why Choose Priyo Authenticator? One-Tap Security: Generate login codes in seconds. No more waiting for SMS or struggling with passwords. Fort Knox for Your Logins: Protects your email, social media, banking, crypto, and work accounts (like Google, Facebook, Amazon, Microsoft, GitHub, and thousands more). It Just Works, Offline: Once set up, it generates codes without internet or mobile data. Your security is always with you. Clean, Intuitive & Private: A beautiful, ad-free interface designed for ease. We never access your secrets or accountsβthey stay encrypted on your device. Completely Free: All core security features are free, with no hidden limits. Your protection shouldn't come at a price. Get Started in Seconds: Download Priyo Authenticator. Scan the QR code from your website/app (like Gmail, Facebook, etc.). Use the generated 6-digit code when logging in. That's it! Your Digital Life is Precious. Guard It with Priyo Authenticator .
Screenshots
Verdict
The clearest difference is update cadence: GCM Mail at every 5 days against Priyo Authenticator's monthly. GCM Mail also leads on iOS requirement (13.0 vs 17.6). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
GCM Mail ships an update every 5 days, Priyo Authenticator monthly. The most recent releases landed on October 5, 2026 and October 18, 2026 respectively.
| Parameter | GCM Mail | Priyo Authenticator |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 days β better | Monthly |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod β better | iPhone, iPad |
| Requires iOS | 13.0 β better | 17.6 |
| Further details β not scored | ||
| Size | 31 MB | 33 MB |
| Age rating | 4+ | 4+ |
| Developer | GCM TECH SOLUTIONS | Md Sayed Abul Kasem |
In-app purchases
GCM Mail
No in-app purchases
Priyo Authenticator
No in-app purchases









