Comparison

Syfra vs QuantumPass

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

Head to head
About

Syfra

This app provides a secure, offline method for backing up sensitive phrases. It uses military-grade encryption and an open-source design to protect against physical and digital threats, ensuring your keys are under your control.

Highlights
  • Offline storage
  • Seed phrase backup
  • AES-256 encryption
  • Open-source design
  • Tamper-proof
  • Water damage resistant
Features
Read full description

Syfra offers a highly secure, offline solution for storing your seed phrases, providing robust protection against water damage, tampering, and digital threats. Featuring an open-source design and AES-256 military-grade encryption, Syfra ensures that your private keys remain fully secure and under your exclusive control.

About

QuantumPass

Read full description

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.

Screenshots

Syfra4 screens
QuantumPass4 screens

Verdict

The call

The clearest difference is in-app purchases: Syfra at none against QuantumPass's 3. Syfra also leads on update cadence (every 2 weeks vs every 10 months) and 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. QuantumPass sells 3 one-off in-app purchases. Syfra asks for nothing beyond the download.

UpkeepUpdate frequency

Syfra ships an update every 2 weeks, QuantumPass every 10 months. The most recent releases landed on October 14, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
Syfra versus QuantumPass: the parameters behind the verdict, then further details
ParameterSyfraQuantumPass
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyEvery 2 weeks — betterEvery 10 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, Mac — better
Requires iOS15.1 — better17.6
Further details — not scored
Size24 MB3 MB
Age rating4+4+
DeveloperSergiu BulatValerie Otero

In-app purchases

None

Syfra

No in-app purchases

3 purchases

QuantumPass

One-time3
  • Small coffee$1.99
  • Medium coffee$3.99
  • Large coffee$5.99

Questions

Is Syfra free?
Syfra is free to download, with no in-app purchases.
Is QuantumPass free?
QuantumPass is free to download, with in-app purchases available.
Do Syfra or QuantumPass have ads?
Neither Syfra nor QuantumPass shows ads.
Which is updated more often, Syfra or QuantumPass?
Syfra ships an update every 2 weeks, and QuantumPass every 10 months. Most recently, Syfra was updated on October 14, 2026 and QuantumPass on October 30, 2026.

Other comparisons