# Phidden vs Sub Cipher

The clearest difference is in-app purchases: Sub Cipher at none against Phidden's 1. Sub Cipher also leads on review sentiment (100% vs 86%). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Phidden sells 1 one-off in-app purchase. Sub Cipher asks for nothing beyond the download.

Both ship on a similar rhythm, roughly every 7 months. The most recent releases landed on June 25, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Phidden | Sub Cipher |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.8 (4 ratings)](https://appshunter.io/ios/app/sub-cipher/id1582898316/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | 85.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 7 months | Every 7 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 43 MB | 40 MB |
| Requires iOS | **16** | 16.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Vanni Giannozzi](https://appshunter.io/developer/367334222) | [Eduard Schwan](https://appshunter.io/developer/594336989) |

## What reviewers say

### Phidden

[App page](https://appshunter.io/ios/app/phidden/id682818494)

Embed secret messages within your photos. Share these images, and only recipients with the app can reveal the hidden text. Avoid image compression to ensure messages remain intact.

**Highlights:** Embed secret messages in photos, Reveal hidden messages with the app, Share encoded photos, Preserve message integrity, Secure sharing methods

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Phidden Network access and ... | $0.99 | one-time |


### Sub Cipher

[App page](https://appshunter.io/ios/app/sub-cipher/id1582898316)

Easily encode and decode messages using simple substitution ciphers like Caesar and Atbash. Convert up to 2,000 characters at a time and save your cipher settings for later use. Ideal for fun educational purposes, not for serious secret messaging.

**Highlights:** Encode/decode simple substitution ciphers, Supports Caesar and Atbash cipher methods, Converts up to 2,000 characters at once, Save cipher settings as text, Create magic decoder wheels, No licensing or royalties required for published ciphers

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Phidden free?

Phidden is free to download, with in-app purchases available.

### Is Sub Cipher free?

Sub Cipher is free to download, with no in-app purchases.

### Do Phidden or Sub Cipher have ads?

Neither Phidden nor Sub Cipher shows ads.

### Which is updated more often, Phidden or Sub Cipher?

Phidden ships an update every 7 months, and Sub Cipher every 7 months. Most recently, Phidden was updated on June 25, 2026 and Sub Cipher on September 12, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*