Henceforth

A mobile forth

$4.99

A lower price, one purchase for iPhone, iPad and Mac. A Forth terminal that is also a Bitcoin SV wallet: write a word, record a script, then sign a payment yourself. Bitcoin you can script. Henceforth is a Bitcoin SV wallet wrapped around a complete FORTH terminal. Send, receive, and broadcast real Bitcoin transactions from a programmable command line. Define your own words, build raw transactions byte by byte, and visualise data with code you write yourself. There's nothing else like it on the App Store. YOUR KEYS, YOUR COINS Private keys live in the iOS Keychain — never on a server. Every send is gated by Face ID or Touch ID. Transactions are permanent on the BSV blockchain, and fees are typically a fraction of a cent. For extra safety, Cold Mode signs transactions on a second offline iPhone over AirDrop — a real air-gap setup without dedicated hardware. A TERMINAL THAT DOES MORE THAN PRINT HELLO WORLD Full Forth-2012 CORE compliance (133 standard words) inside a vocabulary of 384 words, 173 of them Bitcoin Script and Bitcoin SV protocol words, 120 of those opcodes. Print a string: ." Hello, World" Define a word and run it: : square dup * ; 5 square . Pay someone from the command line: 1000 s" 1Q88RPbg..." send The terminal isn't a toy shell — it's the same Forth interpreter that builds the transactions you broadcast. WRITE, SAVE, AND RUN YOUR OWN PROGRAMS Save reusable code as .fs files. The built-in editor and file manager lets you write, version, and rerun scripts. The classic FORTH way: small composable words growing into your own personal vocabulary. CHARTS FROM THE STACK Bar, line, and pie charts from any values on the stack. Visualise sequences, payment histories, or whatever data you compute — directly from FORTH code. WHAT'S INSIDE • BSV wallet with multi-recipient sends and raw transaction builder • Privacy-aware UTXO selection — fresh change addresses every send • 1Sat Ordinal awareness — protects your inscriptions from accidental spending • SPV transaction verification — trust math, not servers • Universal app — iPhone, iPad, and Mac • Local-first — works offline; on-chain when you broadcast • Forever yours — one-time purchase, no subscriptions, no ads Powered by FORTH, the stack-based language Chuck Moore created in 1970.

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Laid out for iPhone Duo, with a more accurate balance. • On iPhone Duo, the keypad, pop-ups and the PAY button in Settings keep clear of the fold. • A payment you send stays off your balance until it confirms, and a dropped one gives its coin back at once. • Screens that cannot fetch a price or a balance now say so instead of showing zero. • On the Mac, an open wallet no longer runs overlapping address searches that kept the processor busy. • Fixes to Full Sync, queued payments and history, and VoiceOver no longer spells out shortened identifiers.

The developer, Henceforth bitcoin limited, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Seller
    Henceforth bitcoin limited
    Size
    13 MB
    Category
    Education
    Compatibility
    Requires iOS 26.0 or later.
    • iPhone
      Requires iOS 26.0 or later.
    • iPad
      Requires iPadOS 26.0 or later.
    • Mac
      Requires macOS 26.0 or later.
    Languages
    English
    Age Rating
    4+
    Copyright
    © Copyrights belong to Henceforth Bitcoin LTD