Naval Letter Builder for iPhone and iPad
RoxyKovu Government Solutions · iOSBuilt to the manual.
A SECNAV M-5216.5 compliant correspondence builder for iPhone and iPad. Nine-step wizard, full 1,941-entry SSIC database, classification banner handling through SECRET, Apple Intelligence section critics, and audited .docx export.
33 rules. One tap.
Every letter ships through a 33-rule SECNAV M-5216.5 auditor and a complementary 32-rule format checker. Margins, Courier 10pt body, hanging indents, heading-line spacing per §7-2.6 through §7-2.11, signature line at the page midpoint per §7-2.14, and classification banner placement per DoDM 5200.01 V-2 are all wired to the manual.
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 SECNAV order of operations — with mid-session save, swap, and a progress tracker that collapses out of your way once you know the steps.
1,941 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.
Banner ordering
that follows the rules.
UNCLASSIFIED through SECRET, with explicit enclave acknowledgment before Confidential, Secret, or Top Secret can be selected. Banners apply at the correct location per DoDM 5200.01 V-2 Encl 3 §6.b, the page number sits above the CUI banner, and the Classification Authority Block emits per §7-2.4. Astro UXDS color tokens through the app.
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.
Requires iOS 26 or later on an Apple Intelligence-compatible device. The app works fully without it — the AI surfaces hide gracefully.
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. 1,941 codes bundled offline, with hierarchy and type-ahead filter.
DoDM 5200.01 V-2
DoD Information Security Program. Classification banner placement, portion marking, and Classification Authority Block emission.
DoD CUI Program
Designation Indicator block, category handling, and banner ordering for Controlled Unclassified Information.
On your device.
Off our servers.
Drafts are stored in your iPhone or iPad's local file sandbox. Nothing syncs to iCloud, nothing routes through RoxyKovu. Apple Intelligence runs on-device. Optional Face ID lock is available for users handling CUI or classified material.
You are responsible for ensuring the device, the network, and the data you enter are all authorized for the classification level you select. 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 currently in App Store review. To request early access for your unit or office, get in touch.
RoxyKovu LLC is a third-party developer. Naval Letter Builder implements the format rules described in SECNAV M-5216.5 and DoDM 5200.01 V-2 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