QuantumPass vs CipherPigeon
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
QuantumPass
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QuantumPass brings two worlds together: a password and key generator, and a small lab to discover quantum randomness. GENERATE • Passwords from 8 to 64 characters: lowercase, uppercase, digits, symbols, ambiguous-character exclusion, forbidden characters and required characters. The estimated entropy is shown with each result. • Diceware passphrases of 3 to 10 words, in French or English depending on the app language, with the separator of your choice. Strengthen a phrase with randomly drawn capitals, substitutions and suffix. • QRNG: 1 to 100 random bits, in binary, decimal, hexadecimal or Base64. • Blockchain RNG: 128 to 512-bit values in Hex, Base64 or Base58, for your keys and seeds. • All these values come from Apple's cryptographic generator. UNDERSTAND • BB84 demo: follow the key exchange between Alice and Bob, and watch Eve the eavesdropper given away by the error rate. • Qubit Lab: measure a simulated qubit in the Z or X basis and watch the statistics build up. • Bloch sphere: set the θ angle and compare theoretical probabilities with measured frequencies. • Reproducible mode: a seed to replay the same demonstration, in class or in a workshop. • PRNG vs TRNG: two animated panels to see the difference between simulated and hardware randomness. • Built-in tutorial and a 10-question quiz. PRACTICAL • Secure clipboard: whatever you copy stays on the device and is cleared after 60 seconds. • In French and English, on iPhone, iPad and Mac. • Tip Jar: support development right from the app. PRIVACY QuantumPass works offline. All calculations are performed on your device. No account, no ads, no data collected. QuantumPass is an educational tool: its "quantum generator" is a simulation, fed by the system's secure random source.
CipherPigeon
Securely encrypt text and images on your device before sending them through any messaging platform. Protect your sensitive information with on-device encryption and manage multiple passphrases for different contacts.
- On-device text encryption
- Image encryption to .cpg files
- Cross-platform messaging compatibility
- Secure passphrase management
- Zero account or cloud storage required
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Encrypt anything. Send it anywhere. CipherPigeon is a mobile encryption tool that works across every messaging platform — no accounts, no servers, no compromise. Whether you're sending a sensitive message over SMS, email, WhatsApp, or Discord, CipherPigeon encrypts it before it ever leaves your screen. Even if the network is compromised, all anyone sees is meaningless cipher text. TEXT ENCRYPTION Type your message, enter your passphrase, and encrypt it instantly. Copy the encrypted packet and paste it into any app. Your recipient decrypts it with CipherPigeon using the same passphrase. IMAGE ENCRYPTION Lock photos into encrypted .cpg files and share them anywhere. Only someone with CipherPigeon and the correct passphrase can unlock them. KEY VAULT Store and manage multiple passphrases securely on your device for different contacts or use cases. WHY CIPHERPIGEON? • Zero accounts required • Zero cloud storage • 100% on-device encryption • Works on any messaging platform • No data ever leaves your device unencrypted Engineered by Vespera Systems. Encrypt everything. Trust nothing
Screenshots
Verdict
The clearest difference is in-app purchases: CipherPigeon at none against QuantumPass's 3. CipherPigeon also leads on iOS requirement (15.1 vs 17.6). On price, ads 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
Both are free to download. QuantumPass sells 3 one-off in-app purchases. CipherPigeon asks for nothing beyond the download.
| Parameter | QuantumPass | CipherPigeon |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 10 months | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone, iPad, Mac — better | iPhone, iPod |
| Requires iOS | 17.6 | 15.1 — better |
| Further details — not scored | ||
| Size | 3 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | Valerie Otero | Vespera Systems |
In-app purchases
QuantumPass
- Small coffee$1.99
- Medium coffee$3.99
- Large coffee$5.99
CipherPigeon
No in-app purchases









