Comparison

Authenticator App⋅ vs Naval Letter Builder

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

Head to head
About

Authenticator App⋅

Securely manage all your passwords in an encrypted vault and enhance account protection with dual-encrypted two-factor authentication codes. Generate strong passwords, sync across devices, and set up accounts quickly with QR codes.

Highlights
  • Encrypted password storage
  • Smart password generator
  • Dual-encrypted 2FA
  • Fast QR code setup
  • Secure iCloud backup and sync
  • Import/export QR codes
Features
Read full description

Our app goes beyond standard 2FA. It's a secure, full-featured solution for both managing your passwords and protecting your accounts — combining encrypted password storage, automatic code generation, and seamless cross-device sync. Key Features: • Encrypted Password Manager – Your Personal Vault Safely store and manage all your passwords in one place. Organize by category, search instantly, and access everything behind one secure lock — no more forgetting or reusing weak passwords. • Smart Password Generator – Built for Strength Generate strong password instantly with one tap — perfect for creating fast, secure codes when setting up new logins. • Two-Factor Authentication with Dual Encryption Add powerful 2FA protection to your online accounts. Your time-based verification codes are stored with double encryption for maximum security. • Fast QR Code Setup Add accounts in seconds by scanning QR codes — quick, simple, and error-free. • Secure iCloud Backup & Instant Sync Back up all your data to iCloud with end-to-end encryption. Any changes are synced automatically across all your devices. • Easy Import & Export of QR Codes Move accounts between devices or store them offline with convenient QR code import/export. About Subscription Auto-renewable subscription $7.99 per week for a weekly subscription $4.99 per week for a weekly subscription with 3-day trial $14.99 per month for a monthly subscrition $39.99 per year for a yearly subscription $39.99 per year for a yearly subscription with 3-day trial $49.99 for a lifetime VIP user Note - Payment will be charged to the iTunes Account at confirmation of purchase - Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period - Account will be charged for renewal within 24 hours before the end of the current period, and identify the cost of the renewal - The user and auto-renewal may manage subscriptions may be turned off by going to the user's Account Settings after purchase - Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable Contact us: support@byte-speed.com Terms of use: https://www.byte-speed.com/terms.html Privacy Policy: https://www.byte-speed.com/privacy.html

About

Naval Letter Builder

Features
Read full description

Stop fighting Microsoft Word. You have sailors and Marines to lead. You should not be stuck in SECNAV M-5216.5 trying to remember which margin a Memo For takes or where the page number sits. The manual is 200 pages. The letter is three. Naval Letter Builder writes the letter for you. Pick a doctype. Type or speak the body. Hit export. The app handles every margin, every banner, and every signature variant. The result is wire compatible with Word. EVERY DOCTYPE COVERED Standard Naval Letter (Chapter 7). Memorandum For Record (10-2.1). Memorandum For (Chapter 12). MOA and MOU with dual signature overscore block (10-2.6). Endorsements (Chapter 9). USMC Orders under MCO 5215.1K. Each renders with its own heading, signature variant, and distribution. ARMY MEMORANDA, NEW IN 1.1.0 (AR 25-50) Pick the Army on the dashboard and the whole app switches to AR 25-50: DEPARTMENT OF THE ARMY letterhead, office symbol and ARIMS line, MEMORANDUM FOR and THRU addressing, numbered paragraphs, and a signature block with grade and branch. Six formats are covered: memorandum, MEMORANDUM THRU, memorandum for record, decision memorandum, and memorandums of agreement and understanding with the dual signature block. General officer grades are spelled out per AR 1-15. NAVAL EMAIL (CHAPTER 4) A normal email stays simple. A formal email adds the SSIC, serial, and date, with the complimentary close and the slash s slash line handled for you (4-2.2). Tag the subject (ACTION, SIGN, INFO, DECISION), pick plain, bulleted, or numbered body, then copy it out or open a prefilled draft in Mail. CUI and classified emails carry the marking and banner per DoDI 5200.48. VOICE DICTATION Tap the mic and speak the paragraph. It lands in place, indented per Figure 7-8. Voice commands for indent, outdent, new paragraph, period, and comma. Naval vocabulary is loaded so ranks, MEF names, and SSIC topics come out right. Runs on Apple's on device speech engine. Nothing transmitted. APPLE INTELLIGENCE, FULLY ON DEVICE Per section Improve buttons run a manual aware critic against your draft. The Full Scrub reviews every section and returns issues you can Apply or Skip, each citing the section it comes from. The review runs entirely on your phone; prompts and letter content are never sent to a server. iOS 26 and later. PHOTO, PDF, OR PASTE IMPORT Bring an existing letter in by camera scan, photo, PDF, or pasted text. Apple Vision OCR pulls the heading, body, signature, and distribution block. Per field confidence chips let you accept or skip each extraction, and smart doctype detection routes it to the right template. CLASSIFICATION SAFETY GATE Any source with Confidential, Secret, or Top Secret banners hard stops before any state is touched. The OCR text is discarded and no draft is created. CUI material routes through the standard DoDI 5200.48 acknowledgment. DRAW YOUR SIGNATURE ONCE Sign with your finger or Apple Pencil. The PDF export overlays the drawn signature above the typed name, and it rides every future letter until you redraw it. EVERY REFERENCE BAKED IN The complete SECNAV M-5210.2 SSIC database (2,240 codes), searchable by code or topic. A unit catalog covering Navy, Marine Corps, and Coast Guard commands plus hundreds of Army commands, installations, hospitals, and National Guard headquarters with mailing addresses. NARA verified CUI categories. DoDM 5200.01 V-2 caveats. CATCH MISTAKES BEFORE YOUR COC DOES The built in validator checks every required field and format constraint before you export, from ALL CAPS and hanging indents to orphan subparagraphs (7-2.13). Every issue cites its rule and the step to jump to. PRIVATE BY DESIGN No accounts. No analytics. No ads. No tracking. Optional Face ID lock. FREE FOREVER No subscription. No in app purchases. Send a clean letter. Get back to your sailors, Marines, and soldiers. Naval Letter Builder is a third party tool. Not affiliated with the Department of Defense, the Navy, or any service branch.

Screenshots

Authenticator App⋅4 screens
Naval Letter Builder4 screens

Verdict

The call

The clearest difference is in-app purchases: Naval Letter Builder at none against Authenticator App⋅'s 6. Naval Letter Builder also leads on ads (none vs shown) and update cadence (every 6 days vs every 3 weeks). Authenticator App⋅'s advantage is iOS requirement (15.0 vs 17.0). On price and device support 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. Authenticator App⋅ sells 6 in-app purchases, starting at $4.99 per 7 days. Naval Letter Builder asks for nothing beyond the download.

UpkeepUpdate frequency

Authenticator App⋅ ships an update every 3 weeks, Naval Letter Builder every 6 days. The most recent releases landed on September 3, 2026 and September 10, 2026 respectively.

Scorecard4 real differences · 6 level
Authenticator App⋅ versus Naval Letter Builder: the parameters behind the verdict, then further details
ParameterAuthenticator App⋅Naval Letter Builder
PriceFreeFree
Rating3.5 (153 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings153 — better—
Update frequencyEvery 3 weeksEvery 6 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better17.0
Further details — not scored
Size72 MB11 MB
Age rating17+4+
DeveloperByteSpeedRoxyKovu LLC

In-app purchases

6 purchases

Authenticator App⋅

Subscriptions5
  • Weekly VIP - 3 Days Free3 Days trial$4.997 Days
  • Weekly VIP Subscription$7.997 Days
  • Monthly VIP Subscription$14.991 Month
Show 2 more
  • Yearly VIP Subscription$39.991 Year
  • Yearly VIP - 3 Days Free3 Days trial$49.991 Year
One-time1
  • Lifetime VIP$49.99
None

Naval Letter Builder

No in-app purchases

Questions

Is Authenticator App⋅ free?
Authenticator App⋅ is free to download, with in-app purchases available.
Is Naval Letter Builder free?
Naval Letter Builder is free to download, with no in-app purchases.
Do Authenticator App⋅ or Naval Letter Builder have ads?
Authenticator App⋅ shows ads; Naval Letter Builder does not.
Which is updated more often, Authenticator App⋅ or Naval Letter Builder?
Authenticator App⋅ ships an update every 3 weeks, and Naval Letter Builder every 6 days. Most recently, Authenticator App⋅ was updated on September 3, 2026 and Naval Letter Builder on September 10, 2026.

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