Comparison

Tessercube vs Shared pocket book markdown

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Tessercube

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
Read full description

[ Basic Functionalities ] - Generate, import, and export OpenPGP keypairs (EdDSA supported) - Encrypt and decrypt encrypted messages - Sign and verify signed messages - Unified message history log [ Special Features: Tessercube Keyboard ] Communicate via OpenPGP in any app, as long as all participants of the conversation have installed Tessercube (or any software supporting OpenPGP implementations). [ Feedback & Bug Report ] If you find any problem with Tessercube, you may visit https://github.com/DimensionDev/Tessercube-Talks/issues to open an issue or send an email to info@dimension.im

About

Shared pocket book markdown

Features
Read full description

Overview It is a memo application that supports encryption. Various passwords and confidential information can be safely shared by individuals and limited groups. HTML and markdown previews are available. Notes can be shared with multiple people. It is possible to encrypt a specific memo. Cryptography can also be managed by biometric authentication. If you accidentally delete it, you can go back in time and easily restore what others have accidentally changed. Sharing method I'm using git for sharing. Please set the URL of git to the URL. You can use git service such as github and bitbuscket. Since I want to give priority to simple operations, I basically omit branch operations, tags, and stash functions. Cryptography I'm using the tombo project. You can share it with other by Git. tombo project https://ja.osdn.net/projects/tombo/ -------------------------------------------------- -------------------------------------------------- --------------------------------------------- Twitter:@sharedkeymemo E-Mail:shrinkmanpic@gmail.com

Screenshots

Tessercube3 screens
Shared pocket book markdown4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

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.

Scorecard1 real difference · 9 level
Tessercube versus Shared pocket book markdown: the parameters behind the verdict, then further details
ParameterTessercubeShared pocket book markdown
PriceFreeFree
Rating4.1 (16 ratings) — better—
Positive reviews53.8% of reviews—
Number of ratings16 — better—
Update frequencyEvery 2 weeksEvery 8 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better14.0
Further details — not scored
Size107 MB12 MB
Age rating4+4+
DeveloperSUJITEKU LIMITED LIABILITY CO.Takashi Nosaka

In-app purchases

None

Tessercube

No in-app purchases

None

Shared pocket book markdown

No in-app purchases

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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