ByteGuard vs RabbitKey
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ByteGuard
Securely manage passwords, generate strong ones, and store sensitive information with zero-knowledge encryption. Includes a built-in authenticator for 2FA codes and supports passkeys for passwordless sign-ins. Offers robust security features and cross-device syncing.
- Zero-knowledge encryption
- Password generation and management
- Built-in authenticator for 2FA
- Passkey support
- Secure storage for notes and cards
- Security reports and analysis
- Cross-device iCloud sync
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ByteGuard is a secure password manager and authenticator with zero-knowledge encryption. Your data stays completely private — we can't see it, only you can decrypt it. KEY FEATURES ◆ MILITARY-GRADE SECURITY • Zero-knowledge architecture: all encryption happens locally • AES-256-GCM encryption with Argon2id key derivation • Dual protection: Master Password + Secret Key • Biometric unlock (Face ID / Touch ID / Optic ID) • Auto-lock when you leave the app • Privacy screen protection in app switcher • Compatible with Apple Lockdown Mode ◆ SMART PASSWORD MANAGEMENT • Store unlimited passwords, cards, notes & identities — free • One-tap AutoFill in Safari and apps • Smart matching of associated domains for the same service • Auto-prompt to save new passwords from browsers (iOS 26.2+) • Powerful password generator with random characters or memorable passphrases • Password history tracking ◆ BUILT-IN AUTHENTICATOR • 2FA/TOTP & HOTP code generator • Works as your standalone authenticator app • Auto-copy codes + system-level one-tap AutoFill (iOS 18.0+) • SHA-1, SHA-256 & SHA-512 support ◆ PASSKEY SUPPORT • Create, store and use passkeys for passwordless sign-in • Works across browsers and apps • Syncs via iCloud to all your devices ◆ STORE MORE THAN PASSWORDS • Bank cards, identity documents & secure notes • API keys, software licenses & OAuth tokens • Organize with custom tags • Recover deleted items for 30 days ◆ MULTIPLE VAULTS • Separate vaults for personal, work & family • Each vault has independent encryption & Secret Key • Quick switch between vaults ◆ SECURITY REPORT • Password strength analysis, duplicate detection & expiration alerts • HTTP-only site detection • Data breach monitoring via Have I Been Pwned • 2FA coverage check • At-a-glance security summary on home screen • Overall security score (0–100) ◆ SYNC & BACKUP • Optional iCloud sync across all your Apple devices • End-to-end encrypted cloud backup • Import from 1Password, Bitwarden, LastPass, Dashlane, KeePass & Apple Keychain • Export to CSV, JSON or encrypted .bytegx ◆ PRIVACY FIRST • No account required to start • No tracking, no analytics, no ads • Your data never leaves your device unencrypted • Works fully offline ◆ WIDGETS & SPOTLIGHT • Quick-access widget with vault stats / color-coded digits & symbols • Password generator widget with one-tap copy • Spotlight search for instant access WHY BYTEGUARD? ByteGuard uses a zero-knowledge architecture. Your master password never leaves your device, and all encryption happens locally. Only you can access your data. FREE PLAN • Unlimited passwords, cards, notes & identities • Unlimited 2FA codes • Biometric unlock & AutoFill • Password generator & auto-lock PREMIUM (upgrade anytime) • iCloud sync & cloud backup • Unlimited vaults (free: up to 3) • Batch import & export • Data breach detection • Full security report • Custom themes Start with a 30-day free trial of all premium features. No credit card required. Monthly ($0.99), Yearly ($5.99), or Lifetime ($9.99) — pay once, use forever. --- Terms of Service: https://bytelink.online/en/terms Privacy Policy: https://bytelink.online/en/privacy Support: hellobyteguard@gmail.com
RabbitKey
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RabbitKey keeps your passwords encrypted on your device — not on someone else's server. Built for people who take security seriously. END-TO-END ENCRYPTION Every entry is encrypted with XChaCha20-Poly1305 before it ever touches storage. Only your master password can unlock your vault — your data stays on your device, and we never see it. BIOMETRIC UNLOCK Unlock your vault instantly with Face ID or Touch ID. Your biometric data never leaves the device. FREE CLOUD SYNC Keep your vault in sync across iPhone, iPad, and Mac through iCloud, Google Drive, or your own WebDAV server — free, no Pro required. You choose where your data lives — or keep it fully offline. SYSTEM AUTOFILL RabbitKey integrates with iOS AutoFill so credentials appear right above the keyboard — in Safari, in apps, anywhere iOS supports autofill. ONE-TIME CODES (OTP) WITH AUTOFILL Store your two-factor authentication secrets next to the matching login. RabbitKey generates the rolling 6-digit code and autofills it straight from the keyboard — no app switching. OTP secrets are encrypted just like everything else. STRONG PASSWORD GENERATOR Generate high-entropy passwords on demand. Tune length and character classes to fit any site's rules. PASSWORD HEALTH Surface weak and reused passwords before they become a problem. RabbitKey scans your vault and flags entries that need attention. IMPORT IN SECONDS Migrating from another password manager or browser? Import existing passwords from a CSV file in a guided, step-by-step flow. DEVICE MIGRATION Moving to a new iPhone or iPad? Transfer your vault directly via QR code — no cloud, no account required. MULTIPLE VAULTS Keep work and personal credentials separate with independent vaults, each with its own master password. TRASH & RECOVERY Deleted something by accident? Entries stay in Trash for 30 days before permanent removal. FREE vs PRO — ONE-TIME PURCHASE, NO SUBSCRIPTION Free: up to 100 entries with full XChaCha20-Poly1305 encryption, biometric unlock, AutoFill, cloud sync (iCloud / Google Drive / WebDAV), password generator, password health, tags, multiple vaults, QR device migration, CSV import, trash recovery, and offline use. Pro (one-time purchase): unlimited entries plus one-time codes (OTP) with autofill. No subscriptions. No ads. No analytics SDKs. A password manager that respects your privacy.
Screenshots
Verdict
The clearest difference is update cadence: ByteGuard at weekly against RabbitKey's every 5 weeks. RabbitKey's advantage is iOS requirement (15.0 vs 17.0). On price, 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
Both are free to download. ByteGuard sells 3 in-app purchases, starting at $0.99 per month and RabbitKey sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
ByteGuard ships an update weekly, RabbitKey every 5 weeks. The most recent releases landed on September 19, 2026 and July 8, 2026 respectively.
| Parameter | ByteGuard | RabbitKey |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Number of ratings | 1 — better | — |
| Update frequency | Weekly — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 24 MB | 70 MB |
| Age rating | 4+ | 4+ |
| Developer | 可文 麦 | 心怡 刘 |
In-app purchases
ByteGuard
- Monthly Subscription$0.991 Month
- Yearly Subscription$5.991 Year
- Lifetime Premium$9.99
RabbitKey
- RabbitKey Pro$29.99





