Rot13 (Unix Flashback) vs Push Authenticator Pro
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Rot13 (Unix Flashback)
This utility app performs a simple letter substitution cipher, rotating English letters by 13 positions. It's useful for obscuring text like spoilers or sensitive content from casual viewers. You can type directly, share text from other apps, or integrate it with shortcuts.
- Letter substitution cipher
- Rotate by 13 positions
- Hide spoilers and sensitive content
- Share text from other apps
- Integrate with shortcuts
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Rot-13 (short for rotate 13) is a simple letter substitution cipher that was popular in online forums for hiding spoilers, punchlines, offensive material, and other things from a casual glance. It works by replacing the current english letters in a message with those that are 13 positions ahead in the alphabet. For example, the letter a is replaced by n, b by o, c by p, etc. Numbers and punctuation are not encoded. This lets you type in and convert with the app, share text from another app to convert, or include in a shortcut.
Push Authenticator Pro
Streamline your logins with instant push notifications for verification codes. Avoid manual entry by simply tapping 'Send' on your phone to automatically transfer codes to your browser. Quickly find and access your 2FA codes with a built-in search filter.
- Push notification authentication
- Automatic verification code transfer
- Action extension for clipboard copy
- Search filter for 2FA codes
- End-to-end encryption for data transfer
- Secure storage of 2FA secrets
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Login in quickly and safely with push notification. Tired of finding the right code for the site and manually typing in 6 digits on your keyboard? You can now just press "Send" on your phone and 6 digit verification codes are sent to your Chrome browser automatically. Features: * push notification. Send verification codes with push of a button. * action extension : Select share from your favorite web browser, and copy the matching verification code to the clipboard. Your login is one paste away. * search filter: find 2FA codes faster * constantly adding supported sites. Security: 1. Safe data transfer between device and Chrome extension using end-to-end encryption. 2. app only sends the current verification digits when you press "Send" button. It does NOT send anything or reveal about the secret code. 3. Your 2FA code secrets are kept encrypted and is not included in a backup. It never leaves the device. To use push notification, please install "Push Authenticator Pro" Chrome extension available free from Chrome Web Store: https://chrome.google.com/webstore/detail/push-authenticator-pro/bmkgobnckmhcmpdhojfmanpanbhjfmce
Screenshots
Verdict
The clearest difference is rating: Rot13 (Unix Flashback) at 5.0 against Push Authenticator Pro's 4.0. Rot13 (Unix Flashback) also leads on in-app purchases (none vs 2). Push Authenticator Pro's advantage is iOS requirement (10.0 vs 18.0). On price, ratings volume, update cadence and ads 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. Push Authenticator Pro sells 2 one-off in-app purchases. Rot13 (Unix Flashback) asks for nothing beyond the download.
Rot13 (Unix Flashback) holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.
Rot13 (Unix Flashback) ships an update every 26 months, Push Authenticator Pro every 14 months. The most recent releases landed on June 4, 2026 and September 8, 2026 respectively.
| Parameter | Rot13 (Unix Flashback) | Push Authenticator Pro |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | 4.0 (1 ratings) |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 2 — better | 1 |
| Update frequency | Every 26 months | Every 14 months — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 18.0 | 10.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Macplugins | Tachyon Factory Inc. |
Customer experience
Rot13 (Unix Flashback)
Push Authenticator Pro
In-app purchases
Rot13 (Unix Flashback)
No in-app purchases
Push Authenticator Pro
- 1 Month Premium Subscription$0.99
- 1 Year Premium Subscription$5.99
Questions
Is Rot13 (Unix Flashback) free?
Is Push Authenticator Pro free?
Which has better reviews, Rot13 (Unix Flashback) or Push Authenticator Pro?
Do Rot13 (Unix Flashback) or Push Authenticator Pro have ads?
Which is updated more often, Rot13 (Unix Flashback) or Push Authenticator Pro?
Other comparisons
