Comparison

Mobile Diary vs Cat Keyboard

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

Head to head
About

Mobile Diary

This app displays your entire month on a single screen with no scrolling. It allows for detailed notes, task management, and photo integration for each day. Share calendars and collaborate with others easily.

Highlights
  • Whole month on one screen
  • Expandable day cells for notes
  • Task checklists
  • Photo integration
  • Shared calendars
  • Automatic reminders
  • iCloud backup and sync
Features
Read full description

Your whole month, two lines a day — on one screen. Mobile Diary shows all 31 days at once with no scrolling. Each day expands to fit what you write, so nothing gets cut off. Add photos, check off tasks, and share calendars with the people you plan with. WHY TWOLINE • The whole month on a single screen — no scrolling, no tapping into each day • Day cells grow with your text, so long notes are never truncated • Write freely, like a memo — events, to-dos, budgets, ideas • Automatic reminders for today's and tomorrow's events, plus timed events — no setup needed CALENDARS • Create calendars by theme and view or edit several at once • Year and month views; holidays from your iPhone's holiday calendar • Lunar calendar support DAY VIEW • Tap a date to see that day in detail • Checklists — completed items are hidden from the month view • Copy, move, or delete events in a tap; move to today, tomorrow, or any date • Photos taken on that day appear automatically • Countdown to upcoming days REPEATING EVENTS • Daily, weekly, monthly (by date or weekday), yearly • Lunar-date repeats for birthdays and anniversaries SHARED CALENDARS • Invite family and friends with a phone number or email — no sign-up • Share photos and comment on them together • Activity alerts when someone posts a photo or comment SEARCH & BACKUP • Find past events fast with search • Your data stays in your own iCloud and syncs across your devices WIDGETS • Month (with previous/next) and day widgets on your Home Screen Start planning a calmer, clearer month today.

About

Cat Keyboard

This app allows you to quickly input saved text snippets from your iPhone keyboard or Apple Watch. You can also display or speak text aloud on your Apple Watch, keeping your phrases organized in folders.

Highlights
  • One-tap text input
  • Save frequently used phrases
  • Organize phrases with folders
  • Display text on Apple Watch
  • Read text aloud on Apple Watch
Features
Read full description

Quickly input frequently used text directly from your keyboard or Apple Watch. You can also display text on your Apple Watch or have it read aloud through the speaker. 【Key Features】 ・Easy Text Input Save frequently used sentences and phrases to input them with just one tap from your keyboard or Apple Watch. ・Organize with Folders Keep your phrases tidy by organizing them into folders, making it easy to find exactly what you need even as your collection grows. ・Apple Watch Integration View text directly on your Apple Watch or play it back as audio through the speaker. Terms of Use: https://wordouen.sakura.ne.jp/KeyHolderKeyboard/terms.html Privacy Policy: https://wordouen.sakura.ne.jp/KeyHolderKeyboard/privacy.html

Screenshots

Mobile Diary4 screens
Cat Keyboard4 screens

Verdict

The call

The clearest difference is price: Cat Keyboard at Free against Mobile Diary's $1.99. Cat Keyboard also leads on update cadence (fortnightly vs every 6 weeks) and ratings volume (10 vs 2). Mobile Diary's advantage is in-app purchases (none vs 4) and rating (5.0 vs 4.7). On ads and device support 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

Cat Keyboard is free to download; Mobile Diary costs $1.99 up front. Cat Keyboard sells 4 in-app purchases, starting at $2.99 per month. Mobile Diary asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Mobile Diary holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Cat Keyboard has 10 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of Mobile Diary's written reviews are positive against 83% of Cat Keyboard's.

UpkeepUpdate frequency

Mobile Diary ships an update every 6 weeks, Cat Keyboard fortnightly. The most recent releases landed on November 7, 2026 and November 4, 2026 respectively.

Scorecard8 real differences · 2 level
Mobile Diary versus Cat Keyboard: the parameters behind the verdict, then further details
ParameterMobile DiaryCat Keyboard
Price$1.99Free — better
Rating5.0 (2 ratings) — better4.7 (10 ratings)
Positive reviews100.0% of reviews — better83.3% of reviews
Number of ratings210 — better
Update frequencyEvery 6 weeksFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFreemium — better
DevicesiPhone, iPadiPhone, iPad, Apple Watch — better
Requires iOS16.6 — better26.0
Further details — not scored
Size15 MB106 MB
Age rating4+12+
Developersanghun leekimihiro kubota

Customer experience

Mobile Diary

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Cat Keyboard

All ratings9 ratings
Positive88.9%
Neutral11.1%
Negative0.0%
Written reviews12 reviews
Positive83.3%
Neutral8.3%
Negative8.3%

In-app purchases

None

Mobile Diary

No in-app purchases

4 purchases

Cat Keyboard

Subscriptions3
  • Premium (1 Month)7 Days trial$2.991 Month
  • Premium (3 Month)7 Days trial$7.993 Months
  • Premium (12 Month)7 Days trial$19.991 Year
One-time1
  • Cat Pro$24.99

Questions

Is Mobile Diary free?
Mobile Diary costs $1.99, with no in-app purchases.
Is Cat Keyboard free?
Cat Keyboard is free to download, with in-app purchases available.
Which has better reviews, Mobile Diary or Cat Keyboard?
Mobile Diary is rated higher. Mobile Diary averages 5.0 out of 5 from 2 ratings, while Cat Keyboard averages 4.7 from 10 ratings.
Do Mobile Diary or Cat Keyboard have ads?
Neither Mobile Diary nor Cat Keyboard shows ads.
Which is updated more often, Mobile Diary or Cat Keyboard?
Mobile Diary ships an update every 6 weeks, and Cat Keyboard fortnightly. Most recently, Mobile Diary was updated on November 7, 2026 and Cat Keyboard on November 4, 2026.

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