Periscope by Duet vs Proton Authenticator & 2FA
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Periscope by Duet
Access your home internet securely from anywhere in the world. This app provides end-to-end encryption and smart connectivity to bypass network restrictions, allowing you to reach your home devices and maintain privacy on public Wi-Fi.
- Connect to home network globally
- WireGuard protocol
- End-to-end encryption
- Smart connectivity for restrictive networks
- Real-time connection stats
- Simple setup
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Periscope — A VPN to Your Own Home Periscope is a VPN that routes your traffic through your own home network instead of a rented data center. You keep one device running there — an Apple TV, a Mac or a PC — and your iPhone and iPad connect back to it from anywhere in the world. That one difference changes what a VPN is for. Your traffic leaves from your own address, so banks, local services and your own devices see the connection they expect. There is no country list to choose from, because there is only one exit: your home. PRIVATE BY DESIGN Your connection is end-to-end encrypted using WireGuard, one of the most secure VPN protocols available. This means your traffic is always private — even we can't see what you're doing. Whether you connect directly or through our relay servers, your data remains yours alone. WORKS FROM ANYWHERE Hotel WiFi blocking VPN connections? Challenging airport network? Periscope's smart connectivity automatically uses direct connection, NAT traversal, or relay fallback to establish a reliable tunnel — no manual configuration needed. FEATURES • Connect to your home network from anywhere in the world • Built on WireGuard — fast, modern, and battery-efficient • End-to-end encryption keeps your traffic private • Smart connectivity that works on restrictive networks • Real-time connection stats and diagnostics • Optimized for iPhone and iPad PERFECT FOR • Accessing your home network services while traveling • Connecting to devices on your home network • Keeping your browsing on your own trusted connection • Privacy-conscious travelers who don't trust public WiFi SIMPLE SETUP Install Periscope on the device that stays home and choose "Server". Install it on the iPhone and iPad you travel with, sign in with the same account, and tap connect. No admin console, no config files, no network settings to learn. FLEXIBLE PLANS Monthly or annual subscriptions. Start with a free trial. Travel the world. Stay connected to home. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Proton Authenticator & 2FA
Securely manage your two-factor authentication codes with an open-source, end-to-end encrypted authenticator app. It offers seamless cross-device syncing, effortless import from other apps, and robust backup options, all protected by strict Swiss privacy laws. Take control of your digital security with a trusted and private solution.
- End-to-end encrypted iCloud sync
- Effortless import from other authenticators
- Secure backup and export
- Swiss privacy by design
- Open source and transparent
- Offline support
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Get the authenticator trusted by millions — from Proton Mail, the world's largest encrypted email provider. Proton Authenticator is open source, end-to-end encrypted, and protected by strict Swiss privacy laws. Protect all your new accounts and strengthen security on your existing ones. Proton Authenticator keeps your 2FA codes secure, accessible, and completely private — with full control over where your data is stored. KEY FEATURES Local-First Storage:Your 2FA codes are stored entirely on your device, giving you complete control over your data. Effortless Import: Migrate from Google Authenticator, Authy, or any other app in seconds. Secure Backup & Export: Retain full control of your data with easy backup and restore options. Swiss Privacy by Design: Built under Switzerland's strongest data protection regulations. Open Source & Transparent: Auditable code. No tracking. No ads. Take control of your digital security with encryption you can trust. Free to use: No Proton account required, ad-free. Offline support: On mobile and desktop apps No other 2FA app provides this combination of security and privacy. Trusted by millions. Built by Proton. Take control of your digital security today. Terms of service: https://proton.me/legal/terms Learn more: https://proton.me
Screenshots
Verdict
The clearest difference is review sentiment: Periscope by Duet at 100% against Proton Authenticator & 2FA's 58%. Periscope by Duet also leads on rating (5.0 vs 4.6). Proton Authenticator & 2FA's advantage is in-app purchases (none vs 2) and ratings volume (514 vs 4). On price, ads, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Periscope by Duet sells 2 in-app purchases, starting at $2.99 per month. Proton Authenticator & 2FA asks for nothing beyond the download.
Periscope by Duet holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Proton Authenticator & 2FA has 514 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 100% of Periscope by Duet's written reviews are positive against 58% of Proton Authenticator & 2FA's.
Periscope by Duet ships an update every 3 weeks, Proton Authenticator & 2FA weekly. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.
| Parameter | Periscope by Duet | Proton Authenticator & 2FA |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (4 ratings) — better | 4.6 (514 ratings) |
| Positive reviews | 100.0% of reviews — better | 57.6% of reviews |
| Number of ratings | 4 | 514 — better |
| Update frequency | Every 3 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Subscription | Free — better |
| Devices | iPhone, iPad, Apple TV | iPhone, iPad, Apple Watch |
| Requires iOS | 17.0 | 17.0 |
| Further details — not scored | ||
| Size | 37 MB | 120 MB |
| Age rating | 4+ | 4+ |
| Developer | Duet, Inc. | Proton AG |
Customer experience
Periscope by Duet
Proton Authenticator & 2FA
Bugs and requests
Periscope by Duet
Not enough reviews yet to summarise bugs or requests.
Proton Authenticator & 2FA
Reported bugs
4 issues- Sync/login loop on iPad
- 2FA input broken on non-iPhone devices
- Screen strobing on iPad
- Duplicate entries after import
Requested features
5 requests- PIN unlock for desktop
- Alphabetical sorting option
- Export function (not just Proton-specific backup)
- Native macOS app
- Option to hide item icons
In-app purchases
Periscope by Duet
- Periscope Monthly7 Days trial$2.991 Month
- Periscope7 Days trial$19.991 Year
Proton Authenticator & 2FA
No in-app purchases
Questions
Is Periscope by Duet free?
Is Proton Authenticator & 2FA free?
Which has better reviews, Periscope by Duet or Proton Authenticator & 2FA?
Do Periscope by Duet or Proton Authenticator & 2FA have ads?
Which is updated more often, Periscope by Duet or Proton Authenticator & 2FA?
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