Comparison

Secure Daily Diary vs Memox Journal

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

Head to head
About

Secure Daily Diary

Capture your thoughts and memories securely with a private journal. Protect your entries with a passcode, Face ID, or Touch ID. Enjoy a customizable experience with various themes and icons, all stored locally and synced via iCloud.

Highlights
  • Passcode, Face ID, or Touch ID protection
  • Local storage and iCloud sync
  • No third-party servers or sign-ups
  • 20+ color themes
  • Multiple app icons
Features
Read full description

Secure Daily Diary is a simple, elegant, and secure way to capture your thoughts, memories, and daily moments. Your privacy comes first: your entries are protected by a passcode, Face ID, or Touch ID. Everything is stored on your device and synced via your personal iCloud — no third-party servers, no sign-ups. Only you have access to your diary. Customize your experience with 20+ thoughtfully designed color themes and multiple app icons. Make it feel truly yours. With Secure Daily Diary, the important moments of your life are always safe — and always just a tap away.

About

Memox Journal

Read full description

Memox — Bind your words and your day into one. A phrase that just came to mind. A moment you don't want to forget. A feeling that brushed past. Memox is a personal iPhone app where your diary and notes grow quietly, as a single "map of words," inside your own iPhone. 【The 3 core concepts】 ■ Diary Today's flowing words. Add to it any number of times a day. ■ Words Phrases and realizations you want to keep. While writing, select any text and tap "Save as Word" right there. Quotes, names, a new expression, a question to yourself —— any grain size. ■ Tags A cross-cutting label for both diary and Words. "#work" "#family" "#reading" —— your own labels, ready to bundle later. Open a Word, and every diary entry that contains it is listed automatically (backlinks). As diary, Words, and Tags gradually connect, the more you write, the more your own "map of words" grows. 【Who Memox is for】 ・People who keep abandoning their diary and want to start again ・People whose phone memos are scattered and unsearchable ・People who want to capture and cultivate the quotes they care about ・People who want a place for their own words — not AI chat, not social media ・People who want their data to stay on their own device 【Main features】 ■ Diary editor ・Simple writing, no daily limit ・Attach photos; URLs auto-linked ・Select text and "Save as Word" inline ■ Words (your personal vocabulary) ・Add and edit any phrase you want to keep ・Connect with tags and related memos to build a network of concepts ・Open a Word to see every diary entry that contains it (backlinks) ・"Related Words" —— other Words that often appear alongside (Memox Plus) ■ Tags ・Cross-classify diary and Words with your own labels ・Open a tag to see all related entries at once ・Deleting a tag is safe: diary and Words remain — only the link is removed ■ Advanced search (Memox Plus) ・Operators like "tag:work" "photo:yes" "date:thismonth" pinpoint the past ■ Voice memos (on-device transcription) ・Capture thoughts by voice; transcribed automatically ・Audio and text stay on your device ■ AI Reflection ・Weekly and monthly reflections, summarized by Apple Intelligence ・Surfaces your recent words and mood trends ・※ Requires Apple Intelligence (iPhone 15 Pro+, iOS 26.1+) ■ Home / Lock Screen widgets ・Today's line, your streak, a suggested Word — always in view ・Lock-screen content can be redacted (privacy-conscious) ■ Face ID / Touch ID lock ・Protects both launch and resume from background ■ iCloud sync ・Secure sync across iPhones via iCloud Drive; can also be turned off ■ Export ・Export all data anytime as PDF, Markdown, or JSON. No lock-in. ■ 7 languages ・Japanese, English, German, Spanish, French, Korean, Traditional Chinese ■ Alternate app icons ・Change the app's face by mood or season 【About privacy】 Memox does not collect your personal data. Diary, Words, tags, audio, transcriptions, and AI summaries are stored only on your device or in your own iCloud. No transmission to any external server except the ad network (free tier only). Not a flashy AI, not an external cloud —— Memox is designed to grow inside your iPhone, for you alone. 【About Memox Plus】 Even free, you get the full basics of diary, Words, and tags. Upgrading unlocks: ・Remove ads ・PDF / Markdown / JSON export ・Home Screen widgets ・AI Reflection (Apple Intelligence devices only) ・Detailed statistics (word co-occurrence, mood trend graphs) ・Voice memos & auto-transcription ・Advanced search operators ・Related Words (extended backlinks) ・Alternate app icons Pricing (US): ・Monthly: $1.99 / 7-day trial ・Yearly: $24.99 / 14-day trial ・Lifetime: $69.99 (one-time) Local prices appear in-app. Cancel at least 24 hours before the trial ends to avoid renewal. Manage: Settings > Apple ID > Subscriptions. Terms: https://do-dodo.com/memox/terms Privacy: https://do-dodo.com/memox/privacy Tokushoho (JP): https://do-dodo.com/memox/tokushoho Contact: memox.support@do-dodo.com

Screenshots

Secure Daily Diary4 screens
Memox Journal4 screens

Verdict

The call

The clearest difference is ads: Secure Daily Diary at none against Memox Journal's shown. Secure Daily Diary also leads on update cadence (every 3 weeks vs every 2 months) and device support (3 vs 1). On price and in-app purchases 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. Secure Daily Diary sells 1 one-off in-app purchase and Memox Journal sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Secure Daily Diary ships an update every 3 weeks, Memox Journal every 2 months. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

Scorecard4 real differences · 6 level
Secure Daily Diary versus Memox Journal: the parameters behind the verdict, then further details
ParameterSecure Daily DiaryMemox Journal
PriceFreeFree
Rating4.6 (456 ratings) — better—
Positive reviews71.2% of reviews—
Number of ratings456 — better—
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS14.0 — better16.0
Further details — not scored
Size16 MB7 MB
Age rating4+4+
DeveloperDmytro VynokurovAkira Kamada

Bugs and requests

Secure Daily Diary

Reported bugs

9 issues
  • Entries disappear after app update or reinstall
  • Entries fail to save properly
  • Password protection bypassed when reopening app
  • Search function causes app to freeze/lock up
  • Paid upgrade not registering - asks to repay
Show 4 more
  • Storage limit notification appears too early
  • Partial entry saving (only portion of text saved)
  • All entries deleted unexpectedly
  • Password reset not working after reinstall

Requested features

7 requests
  • Photo/image upload and attachment capability
  • Touch ID or biometric authentication
  • Better background customization and decoration options
  • Ability to write entries for past dates
  • More creative design and styling options
Show 2 more
  • Free or unlimited storage without paywall
  • Improved search functionality

Memox Journal

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Secure Daily Diary

One-time1
  • Unlimited Diary$9.99
3 purchases

Memox Journal

Subscriptions2
  • Memox Plus Monthly7 Days trial$1.991 Month
  • Memox Plus Yearly14 Days trial$24.991 Year
One-time1
  • Memox Plus Lifetime$69.99

Questions

Is Secure Daily Diary free?
Secure Daily Diary is free to download, with in-app purchases available.
Is Memox Journal free?
Memox Journal is free to download, with in-app purchases available.
Do Secure Daily Diary or Memox Journal have ads?
Memox Journal shows ads; Secure Daily Diary does not.
Which is updated more often, Secure Daily Diary or Memox Journal?
Secure Daily Diary ships an update every 3 weeks, and Memox Journal every 2 months. Most recently, Secure Daily Diary was updated on November 2, 2026 and Memox Journal on November 5, 2026.

Other comparisons