Comparison

CATS Input Method Pro vs Memory Roulette

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

Head to head
About

CATS Input Method Pro

Features
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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 → General → Keyboard → 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.

About

Memory Roulette

Transform your cluttered camera roll into a curated collection of cherished memories. This app gamifies photo organization, offering daily surprise selections for quick review and decluttering. Rediscover forgotten moments and enjoy a cleaner, more meaningful photo library.

Highlights
  • Daily surprise photo crates
  • 3-second swipe review (Favorite, Share, Delete)
  • Gamified photo decluttering
  • Unlimited draws with premium
  • Customizable roulette filters (year, location, type)
  • Rediscover forgotten memories
Features
Read full description

This application adheres to the Apple Standard End User License Agreement (EULA). For detailed terms, please refer to: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ - STOP PHOTO CLUTTER. START REDISCOVERING YOUR PAST. Who has the time to organize a camera roll with thousands of forgotten photos? They just sit there, wasting storage and hiding the memories that truly matter. Memory Roulette turns organization into a fun, quick, and rewarding daily habit. No more stressful scrolling—just pure nostalgia and easy decluttering. - How it Works: Your Daily Memory Spin We gamify your cleanup process by turning photo management into a surprise draw: The Daily Crate: Get a surprise 'Crate' of 5 random photos or videos you haven't seen in months. It's like opening a digital time capsule. 3-Second Curator: Review each moment instantly and swipe to decide: Favorite, Share, or Delete. Do it during your coffee break, waiting in line, or before bed. Relive the Joy: Rediscover those funny, blurry, and forgotten moments—from your pet’s first great escape to the best slice of pizza you ever ate. - Go Premium: Unlock Full Control Ready for a deep clean? Upgrade to unlock our most powerful tools: Unlimited Draws: Clean up your entire photo library at your own pace. Custom Roulette Rules: Filter the Crate content by year, location, or type (e.g., "Only show me photos from last summer’s trip to Japan"). Download Memory Roulette now and turn your messy camera roll back into a beautiful collection of memories.

Screenshots

CATS Input Method Pro4 screens
Memory Roulette4 screens

Verdict

The call

The clearest difference is in-app purchases: CATS Input Method Pro at none against Memory Roulette's 3. Memory Roulette's advantage is update cadence (every 4 days vs every 24 months) and iOS requirement (14.0 vs 17.0). On price, 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

Both are free to download. Memory Roulette sells 3 in-app purchases, starting at $5.99 per month. CATS Input Method Pro asks for nothing beyond the download.

UpkeepUpdate frequency

CATS Input Method Pro ships an update every 24 months, Memory Roulette every 4 days. The most recent releases landed on August 26, 2026 and August 14, 2026 respectively.

Scorecard3 real differences · 7 level
CATS Input Method Pro versus Memory Roulette: the parameters behind the verdict, then further details
ParameterCATS Input Method ProMemory Roulette
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 24 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.014.0 — better
Further details — not scored
Size7 MB37 MB
Age rating4+4+
DeveloperYIU LEUNG RANDY CHAN志文 李

In-app purchases

None

CATS Input Method Pro

No in-app purchases

3 purchases

Memory Roulette

Subscriptions2
  • Monthly Subscription$5.991 Month
  • Yearly Subscription$49.991 Year
One-time1
  • lifetime$39.99

Questions

Is CATS Input Method Pro free?
CATS Input Method Pro is free to download, with no in-app purchases.
Is Memory Roulette free?
Memory Roulette is free to download, with in-app purchases available.
Do CATS Input Method Pro or Memory Roulette have ads?
Neither CATS Input Method Pro nor Memory Roulette shows ads.
Which is updated more often, CATS Input Method Pro or Memory Roulette?
CATS Input Method Pro ships an update every 24 months, and Memory Roulette every 4 days. Most recently, CATS Input Method Pro was updated on August 26, 2026 and Memory Roulette on August 14, 2026.

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