Naval Letter Builder for iPhone and iPad
RoxyKovu Government Solutions · iOSBuilt to the manual.
A correspondence builder for iPhone and iPad that covers all three services. Pick the Navy for SECNAV M-5216.5 letters, the Marine Corps for MCO 5215.1K correspondence, or the Army for AR 25-50 memoranda. The nine-step native wizard includes on-device voice dictation, Apple Intelligence section critics, audited .docx export for every supported format, and the full 2,240-entry SSIC database. Direct PDF supports Naval Letter, Memorandum for the Record, and Memorandum For; Army direct PDF remains deferred.
Manual checks. One tap.
Every letter runs through deterministic correspondence validation and complementary OOXML structure checks. Margins, Courier 10pt body, hanging indents, heading-line spacing per §7-2.6 through §7-2.11, signature placement, classification markings, and the generated DOCX package are checked before export.
Version 1.1.5 concentrates on Army formats and on the feedback sheet. Army import scores all six Army document types against AR 25-50 signals rather than warning on low signal, and Army signature validation requires paired grade and branch, duty titles, and signer names and dates on MOA and MOU. The feedback sheet now uses a random per-sheet identifier, defaults diagnostics and AI activity off, redacts the AI log to shapes only, and returns a copyable receipt.
Open the wizard
From blank to compliant.
Document setup. Letterhead. Identifiers. Recipients. References. Enclosures. Body. Signature block. Review & export. A single linear path that mirrors the correspondence order of operations, with mid-session save, navigation among completed steps, and a progress tracker that collapses out of your way once you know the steps. Switch the branch to the Army on the dashboard and the same path produces AR 25-50 memoranda, with Department of the Army letterhead, office symbol and ARIMS line, MEMORANDUM FOR and THRU addressing, and a grade-and-branch signature block.
The Letterhead step auto-fills from a bundled unit directory that now carries Army units alongside the Navy and Marine Corps catalog. Pick your command and the app sets the service, the second letterhead line, and the address split for you.
2,240 codes,
fingertip-fast.
The complete Standard Subject Identification Code list from SECNAV M-5210.2 (Aug 2018), bundled in the app. Type-ahead filter by number or subject, drill into hierarchies, copy back into the letter header with one tap. No network round-trip.
A section editor
that knows the manual.
Per-section "Improve" buttons sit in each step header. Each runs an on-device critic against a SECNAV-grounded prompt that quotes the relevant manual section verbatim, then returns specific Apply / Skip suggestions you can keep or reject. The Review step also runs a Full SECNAV scrub that consolidates every critic into one Apply-all / Skip-all sheet. The critics flag fewer false problems, and the reference helper covers all eighteen SECNAV M-5216.5 reference formats, including the My and Your forms.
Requires iOS 26 or later on an Apple Intelligence-compatible device. The app works fully without it; the AI surfaces hide gracefully.
Speak it. Sign it.
Send it.
Talk your body paragraphs in instead of thumbing them out. Dictation runs through on-device speech recognition, so the audio never leaves the phone. When the draft is done, share an audited .docx by Mail, AirDrop, or Files. Direct PDF export supports Naval Letter, Memorandum for the Record, and Memorandum For, with your drawn signature on the signature line. Army formats export to DOCX; direct PDF export remains limited to those three SECNAV formats. A sensitive-data scan sits next to both buttons.
Navy, Marine Corps,
and Army.
Pick the service on the dashboard and the whole app follows: templates, citations, letterhead, and theme. Navy runs SECNAV M-5216.5, the Marine Corps runs MCO 5215.1K, and the Army runs AR 25-50 with the standard memorandum, a routed Memo THRU, and a memorandum for record.
A bigger canvas
for a wider audit.
The full editor, the live preview, and the validator side-by-side. Letterhead inputs on the left, the rendered letter on the right, format issues highlighted inline. Same audited engine, same on-device data, more room to see your work.
Wired to the manual.
Every format rule traces back to a manual section. When the manual changes, we update the engine, re-run the auditors, and ship. No re-implementing under deadline. No interpretation drift.
SECNAV M-5216.5 CH-1
DON Correspondence Manual. The single source of format truth. Every rule annotated with its manual section number in the engine.
SECNAV M-5210.2
Standard Subject Identification Code Manual. 2,240 codes bundled offline, with hierarchy and type-ahead filter.
AR 25-50
Preparing and Managing Correspondence. Drives the Army memorandum, the routed Memo THRU, and the memorandum for record.
Drafts stay local.
Feedback stays opt-in.
Drafts are stored in your iPhone or iPad's local file sandbox and do not sync to iCloud or a RoxyKovu service. Apple Intelligence and voice dictation run on-device. Feedback reaches RoxyKovu only when you open Send Feedback, confirm that the report contains no PII, CUI, classified information, or draft letter text, and tap send. The report contains your message, category, and a random submission receipt. Diagnostics are separate, off by default, and add only the app version and build, iOS version, device model, and locale when enabled. A second off-by-default switch can attach field names and text-length shapes from recent AI activity; the before and after draft text and AI rationale are withheld. An optional Face ID lock keeps your drafts private.
The app lock covers open previews and sheets the moment it locks, a cover screen hides your letter in the app switcher (Settings, Hide previews in app switcher), and any email text you copy auto-expires from the clipboard.
Naval Letter Builder is a third-party tool with no official affiliation with the Department of Defense, the Department of the Navy, the Marine Corps, or any other service branch.
Every screen.
Making the complicated simple,
so the mission gets done.
Naval Letter Builder is now available on the App Store, free for iPhone and iPad. For unit licensing, bulk rollout, or custom requirements, get in touch.
RoxyKovu is a third-party developer. Naval Letter Builder implements the format rules described in SECNAV M-5216.5 but has no official affiliation with the Department of Defense, the Department of the Navy, the Marine Corps, or any other service branch. Privacy · Terms