# Pips39: Seed from dice — Learn to roll a BIP39 seed

> Learn to roll a BIP39 seed (iPhone/iPad app by Andreas Michael Kelm.)

- Source: https://appshunter.io/ios/app/pips39-seed-from-dice/id6801655889 (this page in markdown: same URL + `.md`)
- Developer: [Andreas Michael Kelm](https://appshunter.io/developer/1885140950)
- Category: Education, Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 16.6 · 3 MB
- Languages: American English, German (Germany)
- Released: 2026-08-23
- Data updated: 2026-10-09

## What is Pips39?

Pips39 turns real dice rolls into a BIP39 word list. It is meant for an old iPhone you
take offline for good, and above all for understanding the method before you use it on
paper.

It is not a wallet. It stores nothing, derives no addresses, signs no transactions and
has no network code. Nothing stays behind when you close it.


THREE WAYS, SIDE BY SIDE

SHA-256: Exactly 99 rolls for 24 words, 50 for 12. The digit string is hashed.
Verifiable with shasum and any BIP39 tool.

Coleman: Bit for bit identical to iancoleman.io/bip39. Each roll stands for a varying
number of bits, which is why the roll count is not fixed.

Word table: Here the app does not compute, it replaces a sheet of paper. Five dice and
a coin pick one word; only the first three dice are typed in. The app shows 32
candidates and never learns which one you took.


WHAT THE APP SAYS ABOUT ITSELF

The first screen says not to use it for a seed that will hold real money. For that, use
dice, a printed table and paper in a room without electronics.

The app cannot prove a device is offline. iOS gives no app that ability. It states what
it can observe and never tells you that you are safe.


TRANSCRIPTION CHECK WITH ITS OWN KEYBOARD

After writing the words down you type them back, and the app confirms them one position
at a time. It brings its own letter keyboard, which only enables letters a BIP39 word
can continue with. The system keyboard learns words, autocorrects and can be replaced,
so it is no place for a seed.


HELP THAT EXPLAINS INSTEAD OF REASSURING

Six pages on what is behind the method: what a seed is, why the last word carries a
checksum, what the roll-pattern check can and cannot do, how long an attacker would
really need against 118 hidden bits, how to take the device offline, and how to build
the app yourself from source.


SOURCE OPEN

github.com/a6k/pips39

The computing core is a Swift package with no interface and can be checked against the
official BIP39 test vectors with swift test, no simulator needed.

Open source means the source is auditable. It does not mean the build from the App
Store is: Apple re-signs and encrypts it. If you want certainty, build it yourself.


The word table method comes from Shift Crypto AG's BitBox02 dice guide, published under
CC BY-SA 4.0. Pips39 is not affiliated with Shift Crypto.

## Is Pips39 safe?

Not enough ratings yet to assess Pips39.

## Is Pips39 legit?

Pips39: Seed from dice appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for Pips39 is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 2 releases)

### 0.0.2 — 2026-08-28

Nothing changes in what the app does. This version adds a copyright notice that was
missing inside the app.

What grew is the checking behind it. The Coleman method is now held against eight
measurements taken from Ian Coleman's own tool instead of five. New among them: the
24-word case, which is this method's default, and two mixed roll sequences, which show
whether bits are really being counted rather than rolls. That makes 240 checks in
total, run on every change.

None of this changes the arithmetic. It backs it up better.

### 0.0.1 — 2026-08-23

No release notes.

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## More apps by Andreas Michael Kelm

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All apps by Andreas Michael Kelm: https://appshunter.io/developer/1885140950

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-09.*