Kakuremi vs P.S. Vault
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Kakuremi
This app securely manages your passwords locally using the KeePass KDBX format. It offers offline access, AutoFill, and YubiKey NFC unlock without requiring a subscription. Advanced features are available through an optional Pro upgrade.
- Local KDBX password management
- Offline access
- AutoFill integration
- YubiKey NFC unlock
- Face ID/Touch ID biometric unlock
- TOTP secret storage
- Password generator
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A local-first KeePass (KDBX) password manager for iPhone -- works offline, with AutoFill and Face ID, compatible with KeePassXC and KeePass2. Opening your first database and editing your vault are free. YubiKey NFC unlock is included free -- no subscription. Kakuremi was built for one thing: a KeePass vault that stays yours. **YubiKey Challenge-Response -- Free, No Subscription** Enter your master password, then hold your YubiKey to the top of your iPhone over NFC -- the key is a second factor, not a replacement for your password. The hardware-key unlock is not time-limited, not gated, and not billed separately. Kakuremi uses HMAC-SHA1 Challenge-Response, the same scheme as the KeePass desktop apps. It works with NFC-capable YubiKey 5 Series models and the YubiKey NEO once an HMAC-SHA1 slot is configured (via the YubiKey Manager / Authenticator app). FIDO2/passkey-only keys -- such as the Security Key Series -- cannot unlock a database, because they do not implement HMAC-SHA1 Challenge-Response. **A KDBX Engine Written in Rust** Kakuremi's KDBX parsing and serialization are written in Rust, a memory-safe language chosen to reduce the risk of buffer-overflow and use-after-free bugs. Open KDBX 3.x (read-only) and KDBX 4.x; create, edit, and save in KDBX 4. Compatible with KeePassXC, KeePass2, and other standard-compliant KeePass clients. **AutoFill in Safari and in Apps** Kakuremi ships a native Credential Provider extension that works with AutoFill on current and older versions of iOS. Tap the key icon, choose Kakuremi, and pick the login you need. **Local-First -- No Accounts, No Cloud Sync** Kakuremi has no accounts, no sync service of its own, no telemetry, and no analytics. Your database is decrypted in memory and released when the app locks. An encrypted copy of your logins (used by AutoFill) and recent copies of your vault file stay in the app's own storage -- you can clear both in Settings. Apart from Apple's own App Store purchase checks, the only network features are optional and off by default: website icons (only a site's domain is sent to Google's favicon service) and password breach-check (a partial, anonymized hash sent to Have I Been Pwned). Neither lookup sends your master password or an entry's password, username, or notes. **What's Free** - Create or open one KeePass database (KDBX 4; KDBX 3.x read-only) - Create, edit, and organize entries, groups, and tags - YubiKey NFC Challenge-Response unlock - Face ID / Touch ID biometric unlock - iOS AutoFill (Credential Provider) - Store TOTP (2FA) secrets and view live one-time codes - Password generator - Search and Recycle Bin - View attachments - Password breach check (Have I Been Pwned) - Themes (Light / Dark / Warm) and 6 accent colors - Localized in 9 languages **Kakuremi Pro** For power users who want more: - Use more than one database - Add file attachments - Backup history & restore Pricing: a monthly or yearly subscription, or a one-time purchase. New subscribers get a 1-month free trial on the yearly plan; the subscription then renews at the yearly price unless it is canceled at least 24 hours before the trial ends. Prices for your region are shown on this page. **Why "Kakuremi"?** Kakuremi (Japanese: hidden form) refers to the art of concealment. Your secrets deserve to be invisible -- no account to sign into, no service of ours holding them, no fragile code to corrupt them. Just hidden in the file you chose. Built by Springhiker Inc. --- Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://kakuremi.com/privacy/
P.S. Vault
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P.S. Vault is a zero-knowledge secure vault with a built-in Emergency Switch. Store your most important information, encrypted and private — and know it will reach the right people if you're ever unable to hand it over yourself. HOW IT WORKS Configure a check-in schedule that works for you — daily, weekly, or monthly. P.S. Vault sends friendly reminders when it's time to check in. If you stop responding, it escalates — and if you still don't respond, your vaults are securely delivered to the people you've named as beneficiaries. WHAT YOU CAN STORE • Logins & passwords • Secure notes • Financial accounts & credit cards • Identity documents • Crypto wallets & seed phrases • Files & attachments • Contact information • Custom fields ZERO-KNOWLEDGE ENCRYPTION Your data is encrypted on your device before it ever reaches the server. Not even the server administrator can read your vault contents. All encryption uses XChaCha20-Poly1305 with Argon2id key derivation. EMERGENCY SWITCH Set your own check-in schedule and receive friendly reminders. If you miss too many, P.S. Vault alerts your trusted contacts and delivers your vaults to your named beneficiaries — with identity verification to ensure only the right people gain access. Pause the switch anytime when you travel or take a break. BENEFICIARY PROTECTION Assign different people to different vaults. Require identity verification (shared secret + SMS code) before anyone can view your data. Add trusted contacts who are notified but never receive vault contents. SELF-HOSTED & PRIVATE P.S. Vault connects to your own self-hosted server. Your data never passes through third-party infrastructure. Deploy with Docker in minutes on any server or home lab. MORE FEATURES • Face ID / Touch ID check-in via push notification • Offline read-only access to your vaults • Version history for every entry • Beneficiary preview mode — see exactly what they'll see • Import from 1Password, Bitwarden, LastPass, and KeePass • Secure clipboard with auto-clear P.S. Vault is a personal tool for sharing information with loved ones. It is not a substitute for a legal will or estate plan.
Screenshots
Verdict
The clearest difference is in-app purchases: P.S. Vault at none against Kakuremi's 3. Kakuremi's advantage is update cadence (every 6 days vs every 2 months). On price, ads, device support and iOS requirement 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. Kakuremi sells 3 in-app purchases, starting at $2.99 per month. P.S. Vault asks for nothing beyond the download.
Kakuremi ships an update every 6 days, P.S. Vault every 2 months. Both last shipped on October 25, 2026.
| Parameter | Kakuremi | P.S. Vault |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Every 6 days — better | Every 2 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 18.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 8 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | SPRING HIKER CORP. | Adam Nieto |
In-app purchases
Kakuremi
- Kakuremi Pro — Monthly$2.991 Month
- Kakuremi Pro — Yearly1 Month trial$14.991 Year
- Kakuremi Pro — Lifetime$49.99
P.S. Vault
No in-app purchases








