Comparison

My Secret Diary (Images) vs CATS Input Method Pro

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

Head to head
About

My Secret Diary (Images)

Features
Read full description

My Secret Diary is your private space to protect thoughts, photos, audio notes, and personal memories. Write about your days, save feelings, ideas, plans, secrets, and meaningful moments without leaving everything exposed in your device photo library. Your private photos stay inside the app, together with your text entries and audio notes, in an experience designed around privacy. With Secret Diary you can: Protect access with password and Apple biometrics Create entries with text, photos, and audio notes Store private photos without exposing them in the photo library View, delete, share, or save photos whenever you choose Share thoughts as ready-to-post images for social networks Search entries by text, date, or content Sync your data with iCloud when available Restore your diary on another device using the same iCloud account Export diary periods as PDF Change your password and keep access protected Use the app in English, Portuguese, or Spanish Perfect for anyone who wants to privately record personal life, emotions, memories, ideas, dreams, confidences, or important information. Your diary, your photos, your secrets. Kept private.

About

CATS Input Method Pro

Features
Read full description

Writing Chinese is a breeze if you use the Chinese Alphabet Teaching System. You can also input the same way as you write Chinese. It is the fastest way of inputting Chinese, and even better, by using it, you also learn how to write Chinese characters better. It is the ideal way of implementing the EasyChinese method of learning Chinese. CATS Input Method Pro is a system-wide iOS keyboard: enable it once in Settings โ†’ General โ†’ Keyboard โ†’ Keyboards, then write Chinese by strokes in any app. Version 2.0 is an all-new keyboard, rebuilt with a native iOS look in light and dark mode, with both the learning and standard key layouts, word association, and the professional vocabulary. Your settings carry over from earlier versions.

Screenshots

My Secret Diary (Images)4 screens
CATS Input Method Pro4 screens

Verdict

The call

The clearest difference is in-app purchases: CATS Input Method Pro at none against My Secret Diary (Images)'s 1. My Secret Diary (Images)'s advantage is update cadence (every 5 months vs every 24 months). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. My Secret Diary (Images) sells 1 one-off in-app purchase. CATS Input Method Pro asks for nothing beyond the download.

UpkeepUpdate frequency

My Secret Diary (Images) ships an update every 5 months, CATS Input Method Pro every 24 months. The most recent releases landed on November 1, 2026 and October 29, 2026 respectively.

Scorecard2 real differences ยท 4 level
My Secret Diary (Images) versus CATS Input Method Pro: the parameters behind the verdict, then further details
ParameterMy Secret Diary (Images)CATS Input Method Pro
PriceFreeFree
Update frequencyEvery 5 months โ€” betterEvery 24 months
AdsNoNo
In-app purchasesYesNo โ€” better
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.017.0 โ€” better
Further details โ€” not scored
Size4 MB7 MB
Age rating4+4+
DeveloperF&E System AppsYIU LEUNG RANDY CHAN

In-app purchases

1 purchases

My Secret Diary (Images)

One-time1
  • Premium$4.99
None

CATS Input Method Pro

No in-app purchases

Questions

Is My Secret Diary (Images) free?
My Secret Diary (Images) is free to download, with in-app purchases available.
Is CATS Input Method Pro free?
CATS Input Method Pro is free to download, with no in-app purchases.
Do My Secret Diary (Images) or CATS Input Method Pro have ads?
Neither My Secret Diary (Images) nor CATS Input Method Pro shows ads.
Which is updated more often, My Secret Diary (Images) or CATS Input Method Pro?
My Secret Diary (Images) ships an update every 5 months, and CATS Input Method Pro every 24 months. Most recently, My Secret Diary (Images) was updated on November 1, 2026 and CATS Input Method Pro on October 29, 2026.

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