Comparison

Bird Diary vs 懂我筆記本

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

Head to head
About

Bird Diary

This app allows you to write letters to your past, present, or future self. It offers a minimalist journaling experience with text, photos, and moods, and securely stores your messages for later retrieval.

Highlights
  • Minimalist text, photo, and mood journaling
  • Send messages to the future
  • Save favorite letters
  • Revisit past entries
  • Secure local and iCloud sync
Features
Read full description

Write a letter to your past, present, or future self! The blackbird that stole time will one day return with your secrets. 1、Easy Journaling: Minimal diary with text, photos, and moods 2、Time Capsule: Each letter is a message from the heart 3、Future Letters: Send messages to the future, delivered by the blackbird 4、Favorite Moments: Save special letters with one tap 5、Look Back: Revisiting old letters might reveal something new 6、Secure Storage: Local and iCloud sync for safe, permanent storage Terms of Service: https://timekeep.notion.site/User-Agreement-Privacy-Policy-of-Bird-Letter-APP-1f85858d47868066b29bc89f3b44fd3a?pvs=4 Privacy Policy: https://timekeep.notion.site/User-Agreement-Privacy-Policy-of-Bird-Letter-APP-1f85858d47868066b29bc89f3b44fd3a?pvs=4 Email: 3578027083@qq.com We welcome your feedback and suggestions anytime!

About

懂我筆記本

Features
Read full description

KnowMeNote is a quiet place for drafts, ideas, transcripts, and messages you want to finish before sending. Write freely, then tap Copy when the text is ready. The app learns from corrections you make yourself. Names, words, and phrases you often change can be replaced automatically the next time they appear. If a replacement is wrong, undo it immediately and the model learns to avoid that mistake. Highlights: • Multiple notes for separate drafts • One-tap copy to any other app • Independent learning for each of 16 supported languages • Undo, disable, or reset learned preferences • Input, replacement, and per-language learning stats • Keyboard, dictation, pasted text, and transcript support • Optional private iCloud sync Learning runs on your device. If you enable iCloud, notes and learning signals sync through your private iCloud account. You can reset learning data without deleting your notes.

Screenshots

Bird Diary4 screens
懂我筆記本4 screens

Verdict

The call

The clearest difference is in-app purchases: 懂我筆記本 at none against Bird Diary's 3. Bird Diary's advantage is update cadence (every 3 weeks 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Bird Diary sells 3 in-app purchases, starting at $1.99 per month. 懂我筆記本 asks for nothing beyond the download.

UpkeepUpdate frequency

Bird Diary ships an update every 3 weeks, 懂我筆記本 every 2 months. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
Bird Diary versus 懂我筆記本: the parameters behind the verdict, then further details
ParameterBird Diary懂我筆記本
PriceFreeFree
Rating5.0 (10 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings10 — better—
Update frequencyEvery 3 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.017.0
Further details — not scored
Size64 MB7 MB
Age rating4+4+
Developer帆 邱Yu-Hsiang Chang

In-app purchases

3 purchases

Bird Diary

Subscriptions2
  • Black Bird Pro$1.991 Month
  • Black Bird Pro7 Days trial$5.991 Year
One-time1
  • Black Bird Pro Lifetime$7.99
None

懂我筆記本

No in-app purchases

Questions

Is Bird Diary free?
Bird Diary is free to download, with in-app purchases available.
Is 懂我筆記本 free?
懂我筆記本 is free to download, with no in-app purchases.
Do Bird Diary or 懂我筆記本 have ads?
Neither Bird Diary nor 懂我筆記本 shows ads.
Which is updated more often, Bird Diary or 懂我筆記本?
Bird Diary ships an update every 3 weeks, and 懂我筆記本 every 2 months. Most recently, Bird Diary was updated on November 5, 2026 and 懂我筆記本 on October 31, 2026.

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