# Tessercube vs Shared pocket book markdown

The clearest difference is iOS requirement: Tessercube at 11.0 against Shared pocket book markdown's 14.0. On price, update cadence, ads and in-app purchases there is nothing between them.

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

Tessercube ships an update every 2 weeks, Shared pocket book markdown every 8 days. The most recent releases landed on July 30, 2026 and June 10, 2026 respectively.

## The numbers

| Metric | Tessercube | Shared pocket book markdown |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (16 ratings)](https://appshunter.io/ios/app/tessercube/id1455448718/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 53.8% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 8 days** |
| Monetization | Free | — |
| Size | 107 MB | 12 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SUJITEKU LIMITED LIABILITY CO.](https://appshunter.io/developer/1049084226) | [Takashi Nosaka](https://appshunter.io/developer/627947795) |

## 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


### Shared pocket book markdown

[App page](https://appshunter.io/ios/app/shared-pocket-book-markdown/id6443658507)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Tessercube free?

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

### Is Shared pocket book markdown free?

Shared pocket book markdown is free to download, with no in-app purchases.

### Do Tessercube or Shared pocket book markdown have ads?

Neither Tessercube nor Shared pocket book markdown shows ads.

### Which is updated more often, Tessercube or Shared pocket book markdown?

Tessercube ships an update every 2 weeks, and Shared pocket book markdown every 8 days. Most recently, Tessercube was updated on July 30, 2026 and Shared pocket book markdown on June 10, 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.*