Morse Code Keys vs Phasm
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Morse Code Keys
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Are you learning morse code? Now you can practice listening to morse code by typing a message and playing it back! If you're still figuring out how to understand morse code, you can use the included quick morse code reference sheet. More Details: - Type Messages In Regular Text, Plays Morse Code - Share Audio File - Save Messages For Quick Access - Reference Guide For Learning Morse Code
Phasm
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Hidden in plain sight. Phasm turns ordinary photos into secret messengers. Your photo looks exactly the same ā but it carries encrypted messages and files that only someone with the right passphrase can reveal. TWO MODES FOR TWO NEEDS ⢠Ghost Mode ā Maximum stealth. Advanced adaptive algorithms make hidden data virtually undetectable, even by statistical analysis tools. Deep Cover auto-activates for non-JPEG photos with ~43% more capacity. Supports file attachments alongside your message. ⢠Armor Mode ā Maximum durability. Your hidden message survives recompression, re-encoding, and mild cropping. Fortress sub-mode auto-activates for short messages and handles aggressive compression from popular messaging apps. SERIOUS ENCRYPTION ⢠AES-256-GCM-SIV authenticated encryption ā always on, not optional. ⢠Argon2id key derivation ā resistant to brute-force and GPU attacks. ⢠Post-quantum safe ā 256-bit symmetric keys remain secure against quantum computers. ⢠No backdoors. No key escrow. You hold the only key. PRIVACY BY DESIGN ⢠All processing happens on your device. Nothing is uploaded. ⢠No account. No sign-up. No tracking. No ads. ⢠Open-source Rust cryptographic engine ā auditable by anyone. ⢠Built for journalists, researchers, activists, curious tinkerers ā or just for fun. ONE PHOTO. MULTIPLE SECRETS. Shadow Messages let you hide several independent messages in a single photo ā each locked with its own passphrase. Send the same picture to five friends; each one discovers a different message using their name as the key. Nobody knows the others exist. Under pressure to reveal your passphrase? Hand over the primary one. Your shadow messages stay invisible ā no header, no marker, no proof they were ever there. MAGIC WAND ā ONE TAP TO OPTIMIZE Tap the wand and your photo is silently tuned for better steganographic embedding. Imperceptible texture is added to smooth regions like skies, bokeh, and flat backgrounds ā boosting capacity by 10ā35% with no visible change. The photo looks identical. The math works better. SHARE YOUR WAY ⢠Share via AirDrop, Messages, email, or any app that handles images. ⢠phasm.link ā generate a short link so recipients can decode instantly in the browser or via App Clip. No install needed. ⢠For guaranteed delivery through messaging apps, use "send as file." BUILT FOR iPHONE AND iPAD ⢠Native app optimized for iPhone and iPad. ⢠Supports JPEG, PNG, GIF, WebP, and HEIC ā auto-converted for embedding. ⢠Real-time decode progress with integrity scoring. ⢠38 languages supported. HONEST ABOUT LIMITATIONS ⢠Platforms that resize or re-encode photos may destroy hidden data. Use direct sharing or "send as file." ⢠Capacity depends on image resolution ā larger photos carry more data. ⢠Steganography hides the existence of a message. Encryption protects its content. Phasm gives you both.
Screenshots
Verdict
The clearest difference is price: Phasm at Free against Morse Code Keys's $4.99. Morse Code Keys's advantage is device support and iOS requirement (13.0 vs 17.0). On in-app purchases there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Phasm is free to download; Morse Code Keys costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Morse Code Keys | Phasm |
|---|---|---|
| Price | $4.99 | Free ā better |
| Ads | No | ā |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod ā better | ā |
| Requires iOS | 13.0 ā better | 17.0 |
| Further details ā not scored | ||
| Size | 4 MB | 21 MB |
| Age rating | 4+ | 4+ |
| Developer | Caesar Salad Software LLC | Christoph Gaffga |
In-app purchases
Morse Code Keys
No in-app purchases
Phasm
No in-app purchases









