Encrypt Messages vs Quietmarks
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Encrypt Messages
Securely send private messages using custom codes. Choose from text, emoji, or hidden message formats. Share codes safely with recipients through various methods, including QR codes and hints. Includes duress codes for added security.
- AES-256 encryption
- No account or internet required
- Text, Emoji, Hidden, and Classic modes
- Secure code sharing (hints, QR codes)
- Duress codes for decoy messages
- Customizable code generation
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Type a message. Pick a secret code. Send the scrambled result through any app you already use — Messages, WhatsApp, email, even a handwritten note. Only someone who knows your code can read it. Not us, not your carrier, not whoever is looking over their shoulder. REAL ENCRYPTION, NOT A TOY CIPHER Your message is locked with AES-256. Your secret code is the only key — there is no master key, no backdoor, and no way to recover a message if the code is lost. Codes are strengthened before use, so even a short one is slow to attack. NOTHING LEAVES YOUR PHONE No account. No sign-up. No servers. The app never connects to the internet, so your messages and codes are never collected, uploaded, or shared. Saved codes live in your device keychain, on this device only. FOUR WAYS TO SEND • Text — a block of scrambled letters and numbers. Paste it anywhere. • Emoji — the same message, disguised as a string of emoji. • Hidden — your secret tucked invisibly inside an ordinary sentence you write. Anyone reading sees only the cover text. • Classic — turns letters into letters. No code is ever reported as wrong, so someone guessing gets thousands of believable answers and no way to tell which is yours. Best for short secrets: a time, a place, a name, a password. SHARING A CODE, SAFELY A code only works if your recipient has it too, so the app gives you three ways to hand one over without ever sending it: • Say it out loud, in person or on a call. • Attach a hint that travels with the message — a question only your recipient can answer. • Show a Code Card: a QR your friend scans off your screen with their camera. Screen to camera, nothing in between. Save the codes you use and name them — "Mom," "Poker night" — so picking the right one takes a tap. DURESS CODES Any message can carry a second code that opens a harmless decoy message you wrote yourself. If someone pressures you into handing over your code, give them that one instead. Both messages are padded to the same size, so nothing in the scrambled text hints that a second message exists. STRONG CODES, MADE EASY Generate a passphrase you can read aloud over the phone, or a dense random string best shared by Code Card. Either way you see exactly how strong it is before you use it. Type your own and the app tells you honestly where it stands. UNSCRAMBLING IS ONE STEP Paste the whole chat message — greeting, signature, and all. The app finds the scrambled part on its own, whether it's text, emoji, or hidden inside a normal sentence. Built for people who'd rather keep a few things between themselves. No ads. No tracking.
Quietmarks
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Prepare a date-bounded chronology from your saved noise observations, with a full preview before sharing. HOW IT WORKS 1. Open Entries and tap Timeline. Choose the first and last calendar day. 2. Choose whether to include notes, witness names and approximate readings. Photos are excluded. 3. Review the complete timeline before sharing. An explicitly labeled example can be explored without changing your log. Noise capture, saved entries, recurrence tools and existing reports remain available. WHAT TO KNOW These are user-recorded observations, not verified findings or a certified sound-level report. Missing days are unknown, not evidence of silence. Perceived durations may overlap. Headlines, source, room and impact fields remain included and can contain personal information; inspect the preview. iPhone and iPad.
Screenshots
Verdict
The clearest difference is update cadence: Quietmarks at weekly against Encrypt Messages's every 70 months. Quietmarks also leads on price ($2.99 vs $3.99) and iOS requirement (17.0 vs 26.0). On ads, in-app purchases 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
Encrypt Messages costs $3.99 and Quietmarks $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Encrypt Messages ships an update every 70 months, Quietmarks weekly. The most recent releases landed on October 17, 2026 and October 24, 2026 respectively.
| Parameter | Encrypt Messages | Quietmarks |
|---|---|---|
| Price | $3.99 | $2.99 — better |
| Rating | 4.0 (4 ratings) — better | — |
| Positive reviews | 50.0% of reviews | — |
| Number of ratings | 4 — better | — |
| Update frequency | Every 70 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 26.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 5 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | Anthony Harvey | Robert Corbin |
In-app purchases
Encrypt Messages
No in-app purchases
Quietmarks
No in-app purchases
Questions
Is Encrypt Messages free?
Is Quietmarks free?
Do Encrypt Messages or Quietmarks have ads?
Which is updated more often, Encrypt Messages or Quietmarks?
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