Study852 vs Proton Authenticator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Study852
This productivity tool features a timer that plays an 852hz pure tone while active. It's designed to enhance focus during study sessions and can be upgraded for extended timer durations.
- 852hz pure tone playback
- Timer for focus sessions
- Pause and stop functionality
- Extended timer options (PRO)
- No data collection
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852hz pure tone plays when you start the timer and stops when the timer ends or you press pause. Perfect for studying and focus. [In App Purchase] PRO: For a one time payment of $2.99, you can set timers longer than 10 minutes up to 3 hours. The purchase is good for lifetime use! [Privacy and Security] This app collects no data. [Terms of Use] EULA Link: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Proton Authenticator
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 rating: Study852 at 5.0 against Proton Authenticator's 4.4. Proton Authenticator's advantage is in-app purchases (none vs 1) and ratings volume (242 vs 2). On price, ads 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. Study852 sells 1 one-off in-app purchase. Proton Authenticator asks for nothing beyond the download.
Study852 holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Proton Authenticator has 242 ratings behind it against 2, so its average is the more settled of the two.
| Parameter | Study852 | Proton Authenticator |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.4 (242 ratings) |
| Positive reviews | — | 55.7% of reviews |
| Number of ratings | 2 | 242 — better |
| Update frequency | — | Weekly |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone | iPhone, iPad, Apple Watch — better |
| Requires iOS | 18.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 139 MB | 119 MB |
| Age rating | 4+ | 4+ |
| Developer | Daisydoor | Proton AG |
Customer experience
Study852
Proton Authenticator
Bugs and requests
Study852
Not enough reviews yet to summarise bugs or requests.
Proton Authenticator
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
Study852
- Pro$0.99
Proton Authenticator
No in-app purchases
Questions
Is Study852 free?
Is Proton Authenticator free?
Which has better reviews, Study852 or Proton Authenticator?
Do Study852 or Proton Authenticator have ads?
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