Rot13 (Unix Flashback) vs Virtual Language
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.
Virtual Language
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Virtual Language allows you to create language in any kind, it hides the alphabet letter by the letter or sign you provide when you create a language. this app can help you to hide important information, or you can use it for fun, writing with your friends or family, you and the person who knows the language is used will be able to translate it, it works between you and the App. see example at: https://apps.arrowatllc.com/virtuallanguage ARROWAT™ Virtual Language.
Screenshots
Verdict
The clearest difference is price: Rot13 (Unix Flashback) at Free against Virtual Language's $7.99. Rot13 (Unix Flashback) also leads on update cadence (every 26 months vs every 56 months). Virtual Language's advantage is iOS requirement (11.0 vs 18.0). On ads, in-app purchases and device support 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
Rot13 (Unix Flashback) is free to download; Virtual Language costs $7.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Rot13 (Unix Flashback) ships an update every 26 months, Virtual Language every 56 months. Both last shipped on June 4, 2026.
| Parameter | Rot13 (Unix Flashback) | Virtual Language |
|---|---|---|
| Price | Free — better | $7.99 |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 26 months — better | Every 56 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 60 MB |
| Age rating | 4+ | 4+ |
| Developer | Macplugins | Arrowat LLC |
In-app purchases
Rot13 (Unix Flashback)
No in-app purchases
Virtual Language
No in-app purchases
