AES-256 · Zero network · One-time purchase

A diary that only your phone
can open.

OffMemory is a zero-network journal: no account, no cloud, no ads. Every thought is encrypted with AES-256 and stays only on your device.

AES-256 · 零联网 · 一次买断

一本只有你的手机
能打开
的日记

密匣笔记是一款零联网日记:无账号、无云端、无广告。每一段心事都以 AES-256 加密,仅保存在你的设备上。

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Why OffMemory

Built for absolute privacy. No tricks, no subscriptions.

为什么选择密匣笔记

为绝对隐私而生。没有套路,没有订阅。

Fully offline

Zero network requests. No tracking, analytics, or data upload. Your notes never leave the device.

AES-256 encryption

Titles, bodies, and images are encrypted locally. The key is derived from your password and stored in the system keychain.

Password + biometric lock

Unlock with password or Face ID / Touch ID. Auto-lock when returning from background keeps prying eyes out.

Security-question recovery

Forgot your password? Answer your security questions to reset it without losing any diary entries.

Markdown & folders

Rich Markdown editing, folders, and tags help you organize memories. Trash lets you recover accidental deletions.

Encrypted local backup

Export an encrypted backup file you control. Keep it in Files, iCloud Drive, or anywhere you trust.

One purchase, forever

No subscriptions, no ads, no recurring charges. Pay once and own all premium features permanently.

完全离线零网络

不发起任何网络请求,无埋点、无数据上传。你的笔记永远不会离开设备。

AES-256 加密

标题、正文、图片全部本地加密。密钥由你的密码派生,存放在系统安全密钥链中。

密码 + 生物识别双重保护

支持密码解锁与面容 / 触控 ID。切回后台自动上锁,防止他人窥探。

密保找回不丢数据

忘记解锁密码?答对密保问题即可重置密码,所有日记完整保留。

Markdown 与文件夹

支持 Markdown 富文本书写、文件夹与标签整理;删除的笔记进入回收站,可恢复误删内容。

加密本地备份

导出加密备份文件,由你掌控。可保存到「文件」App、iCloud 云盘或任何你信任的位置。

一次买断,永久使用

无订阅、无广告、无自动续费。一次性购买即可永久解锁全部高级功能。

A diary that asks for nothing

OffMemory began with one question: if there were a diary that no one could ever open but you, what would you finally let yourself write?

We built the opposite of every app out there: no account, no cloud, no network permission. Not even we can see inside. Every page is sealed with AES-256 and stays quietly on your phone.

We also refuse subscriptions. One purchase, forever. Keeping a secret should not come with a monthly bill.

一本什么都不问的日记

密匣笔记始于一个问题:如果有一本日记,除了你没有任何人能打开,你会写下什么?

我们决定做一件相反的事:不要账号,不连云端,没有网络权限,连我们自己也无法打开。你写下的每一页都以 AES-256 加密,安静地留在手机里。

我们也固执地拒绝订阅:一次购买,永久使用。守护秘密这件事,不该按月收费。

OffMemory editor
密匣笔记编辑器

Screenshots

A calm, focused space for your thoughts — drag or use the arrows.

应用截图

一个宁静、专注的书写空间 —— 可拖动,或用左右箭头。

解锁页
首页
Markdown 编辑器
深色编辑器
安全中心
文件夹
文件夹笔记
深色模式
关于
Unlock
Home
Markdown Editor
Dark Editor
Security
Folders
Folder Notes
Dark Mode
About

Beautiful on iPad, too

A wider canvas for longer entries and bigger memories.

iPad 上同样出色

更宽阔的画布,安放更长的思绪与更大的回忆。

首页
编辑器
深色编辑器
解锁页
安全中心
文件夹
文件夹笔记
深色模式
关于
Home
Editor
Dark Editor
Unlock
Security
Folders
Folder Notes
Dark Mode
About

App Store Highlights

Every feature, designed with privacy first.

App Store 精选亮点

每一项特色,都以隐私为先。

每一条笔记,都被 AES-256 加密
Markdown 工具条,写作更顺手
你的秘密,只有你能打开
零联网 · 零上传 · 零追踪
笔记分门别类,井井有条
每个文件夹,一段心事
深色模式,沉浸书写
夜深了,灵感依旧清晰
为隐私而生的日记本
Every Note, AES-256 Encrypted
A Full Markdown Toolbar
Your Secrets, Yours Alone
No Network. No Upload. No Tracking.
Notes, Neatly Sorted
Each Folder, a Chapter
Dark Mode, Deep Focus
Late-Night Thoughts, Crystal Clear
A Journal Built for Privacy

Your secrets deserve
a vault of their own.

Download OffMemory on the App Store and start writing freely.

Terms of Use

你的秘密,值得拥有
一座专属保险箱。

在 App Store 下载密匣笔记,开始安心书写。

用户协议