Comparison

E vs CatDo

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

Head to head
About

E

Enhance your focus with a charming productivity app that combines a to-do list and Pomodoro timer. Cute characters and soothing lo-fi music create an immersive environment to help you concentrate on tasks.

Highlights
  • Focus with cute characters
  • Customizable themes
  • Variety of lo-fi music
  • Integrated to-do list
  • Pomodoro timer
  • White noise for immersion
Features
Read full description

E:Roomy - A focus space with cute friends On days when focusing is difficult, how about having cute friends with you? E:Roomy is an all-in-one productivity app that combines a to-do list and a Pomodoro timer! Cute characters will study and work with you, helping you immerse yourself with warm music.​ • Special Features of E:Roomy • Focus with cute characters! - Shall we join the little slime friends Poru, Moru, and Doru? - You can choose from various themes such as college student Haneul who loves cafes, virtual YouTuber Luna with secrets, and elf Nabi, the guardian of the forest who plays with spirits! - They will move cutely while you focus, looking at you and spending time together. - Themes will be continuously updated, so stay tuned! • Various Lo-fi music suitable for different situations: - Energetic : Lively energy like morning sunshine! - Stable : Helps calm focus with a soft sensibility. - Refreshing : Refreshingly clear atmosphere! - Calm : Quiet and peaceful atmosphere for deep immersion! • All-in-one focus tool: - To-do list and Pomodoro timer in one! - Deeper immersion experience with white noise - Simple and intuitive interface, easy for anyone to use! • Why use E:Roomy?: - Cute assistant characters for those who find it hard to focus! - Intuitive functions that manage to-dos and Pomodoro at once! - Lo-fi & white noise to aid immersion!​ Start a more enjoyable and efficient focus with cute friends!

About

CatDo

Features
Read full description

Stay Productive, Take Care of Your Cat Study Buddy! Turn your daily routine into a game! Boost your focus, build habits, and stay on top of tasks while earning points to feed and dress up your adorable virtual buddy. Available features: To-Do List – Stay organized with simple, clear task management. Habit Tracker – Build positive routines and track your progress. Pomodoro Timer – Focus in short bursts and avoid burnout. Feed Your Cat – Earn points by being productive while keeping your cat happy. Dress Up Your Cat – Unlock cute outfits and accessories as a reward for your hard work. Productivity doesn’t have to feel boring. Stay motivated, stay consistent, and make progress while having fun along the way.

Screenshots

E4 screens
CatDo4 screens

Verdict

The call

The clearest difference is in-app purchases: CatDo at none against E's 7. CatDo also leads on ads (none vs shown). E's advantage is update cadence (fortnightly vs every 10 months) and iOS requirement (13.0 vs 15.0). On price 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. E sells 7 one-off in-app purchases. CatDo asks for nothing beyond the download.

UpkeepUpdate frequency

E ships an update fortnightly, CatDo every 10 months. The most recent releases landed on September 24, 2026 and October 7, 2026 respectively.

Scorecard4 real differences · 6 level
E versus CatDo: the parameters behind the verdict, then further details
ParameterECatDo
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings1 — better—
Update frequencyFortnightly — betterEvery 10 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.0
Further details — not scored
Size433 MB117 MB
Age rating4+4+
DeveloperQKINGGAMESDinu Stefan Rusu

In-app purchases

7 purchases

E

One-time7
  • 50 Coins$0.99
  • 100 Coins$1.99
  • Remove ads$2.99
Show 4 more
  • 200 Coins$3.99
  • 400 Coins$7.99
  • 800 Coins$15.99
  • 1000 Coins$19.99
None

CatDo

No in-app purchases

Questions

Is E free?
E is free to download, with in-app purchases available.
Is CatDo free?
CatDo is free to download, with no in-app purchases.
Do E or CatDo have ads?
E shows ads; CatDo does not.
Which is updated more often, E or CatDo?
E ships an update fortnightly, and CatDo every 10 months. Most recently, E was updated on September 24, 2026 and CatDo on October 7, 2026.

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