# Tessercube vs Sub Cipher

The clearest difference is review sentiment: Sub Cipher at 100% against Tessercube's 54%. Tessercube's advantage is update cadence (every 2 weeks vs every 7 months) and rating (4.1 vs 3.8). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Tessercube holds the better App Store score, 4.1 against 3.8. Both are backed by a comparable volume of ratings — 16 and 4 respectively. Written reviews complicate that: 54% of Tessercube's written reviews are positive against 100% of Sub Cipher's, so the app with the better star average is not the one people write more warmly about.

Tessercube ships an update every 2 weeks, Sub Cipher every 7 months. The most recent releases landed on July 30, 2026 and September 12, 2026 respectively.

## The numbers

| Metric | Tessercube | Sub Cipher |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (16 ratings)](https://appshunter.io/ios/app/tessercube/id1455448718/reviews)** | [3.8 (4 ratings)](https://appshunter.io/ios/app/sub-cipher/id1582898316/reviews) |
| Number of ratings | **16** | 4 |
| Positive reviews | 53.8% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 7 months |
| Monetization | Free | Free |
| Size | 107 MB | 40 MB |
| Requires iOS | **11.0** | 16.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [SUJITEKU LIMITED LIABILITY CO.](https://appshunter.io/developer/1049084226) | [Eduard Schwan](https://appshunter.io/developer/594336989) |

## What reviewers say

### Tessercube

[App page](https://appshunter.io/ios/app/tessercube/id1455448718)

This app allows users to generate, import, and export OpenPGP keypairs for secure communication. It enables encryption, decryption, signing, and verification of messages, with a special keyboard for use in any application. A unified message history log keeps track of all communications.

**Highlights:** OpenPGP key generation and management, Encrypt and decrypt messages, Sign and verify messages, Unified message history, System-wide OpenPGP keyboard

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 Tessercube free?

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

### Is Sub Cipher free?

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

### Which has better reviews, Tessercube or Sub Cipher?

Tessercube is rated higher. Tessercube averages 4.1 out of 5 from 16 ratings, while Sub Cipher averages 3.8 from 4 ratings.

### Do Tessercube or Sub Cipher have ads?

Neither Tessercube nor Sub Cipher shows ads.

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

Tessercube ships an update every 2 weeks, and Sub Cipher every 7 months. Most recently, Tessercube was updated on July 30, 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.*