# Kakuremi - KeePass Manager — KeePass vault · free YubiKey

> KeePass vault · free YubiKey (iPhone/iPad app by SPRING HIKER CORP..)

- Source: https://appshunter.io/ios/app/kakuremi-keepass-manager/id6761427915 (this page in markdown: same URL + `.md`)
- Developer: [SPRING HIKER CORP.](https://appshunter.io/developer/1889563393)
- Category: Utilities, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 18.0 · 8 MB
- Languages: American English, French (France), German (Germany), Italian, Japanese, Korean, Polish, Chinese (Simplified, China), Swedish
- Released: 2026-05-17
- Data updated: 2026-08-06
- User reviews in markdown: https://appshunter.io/ios/app/kakuremi-keepass-manager/id6761427915/reviews.md

## What is Kakuremi?

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
- 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
- View and copy live TOTP codes
- 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.

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Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://kakuremi.com/privacy/

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Kakuremi Pro — Yearly | $14.99 | per year |
| Kakuremi Pro — Monthly | $2.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Kakuremi Pro — Lifetime | $49.99 | one-time |



## Version history (last 5 releases)

### 1.4.0 — 2026-08-02

New in 1.4:

• Stronger encryption for new vaults — vaults created in Kakuremi now use a much stronger Argon2 configuration (32 MiB memory cost), comfortably above desktop KeePass's weak-settings warning threshold. Existing vaults keep their current settings; you can re-tune them anytime with a desktop app such as KeePassXC.
• Precise key-derivation info — Database Settings now shows memory in exact units and flags vaults still using older, lower-strength settings.
• Open Source Licenses — a new row in Settings → About lists the third-party components Kakuremi builds on.
• Reliability — fixed a rare case where two saves could run at the same time.

As always: offline-first and KeePass-compatible, with free, optional YubiKey 5 NFC unlock as a second factor — Kakuremi works without a YubiKey.

### 1.3.0 — 2026-07-05

New in 1.3:

• Clearer Pro plans — the upgrade screen now leads with the one-time Lifetime option (pay once, keep Pro forever), shown alongside the Monthly and Yearly plans.
• Easier to start your free month — when you reach a Pro feature such as live TOTP codes or adding attachments, you can begin your 1-month free trial right there.

As always: offline-first and KeePass-compatible, with free, optional YubiKey 5 NFC unlock — Kakuremi works fully without a YubiKey.

### 1.2.0 — 2026-06-13

New in 1.2:

• More reliable saving — edits to newly created and additional databases are always saved now, and your changes are never lost when the app locks in the background.
• Stronger privacy — passwords copied to the clipboard clear automatically and stay on your device, and Kakuremi hides its contents in the app switcher and behind system sheets.
• Clearer AutoFill — if saving a new login from AutoFill fails, Kakuremi keeps what you entered and tells you what happened instead of dropping it silently.
• KeePass 2.0 key files — databases that use a .keyx key file from KeePassXC or KeePassium now open correctly.
• Free trial on the yearly plan — the one-month free trial is now shown clearly on Kakuremi Pro (Yearly).
• Plus improved tag entry, a corrected "Recently Modified" sort, safer CSV export, and many stability and localization fixes.

As always: offline-first, KeePass-compatible, with free YubiKey 5 NFC support.

### 1.1.0 — 2026-06-01

New in 1.1.0:

• Optional Face ID lock for AutoFill — require Face ID before AutoFill fills a password. Off by default; turn it on in Settings.
• Clearer YubiKey messages — if a key can't be used to unlock (for example, a FIDO-only Security Key that doesn't support Challenge-Response, or a slot that isn't programmed), Kakuremi now tells you exactly why and what to do.
• AutoFill fixes — saved logins are now correctly limited to the database you're using, and deleted entries in the Recycle Bin no longer appear.
• Polished Korean, Polish, and Swedish translations.

As always: offline-first, KeePass-compatible, with free YubiKey 5 NFC support.

### 1.0.5 — 2026-05-29

Kakuremi now speaks 6 more languages: German, French, Korean, Swedish, Italian, and Polish — with localized Face ID/NFC prompts and grammatically correct counts. Plus minor fixes and improvements.

## More apps by SPRING HIKER CORP.

- [Ace High Poker](https://appshunter.io/ios/app/ace-high-poker/id6787621364)

All apps by SPRING HIKER CORP.: https://appshunter.io/developer/1889563393

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-06.*