Comparison

Killer Aid vs Cat Bubble Clear

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

Head to head
About

Killer Aid

This app assists players in solving challenging Killer Sudoku puzzles by providing tools to calculate and filter number combinations for cages. It helps identify duplicate numbers and offers a calculator optimized for specific solving strategies.

Highlights
  • Cage combination calculation
  • Duplicate number highlighting
  • Filter tools (Exclude, Include AND, Include OR)
  • Optimized calculator for Killer Sudoku
  • Help and strategy resources
Features
Read full description

If you've struggled to complete tricky, tough, or deadly Killer Sudoku puzzles then this App could be for you. It provides a suite of tools to aid finding the minimum number of combinations that add up to each cage’s sum. The results are clearly displayed with any duplicate numbers highlighted in red. The target number of cells and their sum is entered using the edit tool. This presents a pick list of cells and sums values to simplify their selection and prevent invalid entries. It is also possible to select the display of combinations with duplicate values. Filter tools help reduce the possible combinations. Three variants of filter are provided namely: ・Exclude ・Include AND ・Include OR The exclude filter removes any combinations that contain the specified numbers. The "include AND" filter reduces the combinations down to those that include all the specified numbers. The "include OR" filter facilitates including combinations that contain one or more of a set of numbers. These three filter types can be combined together. Cage combinations can also be manually deleted. A calculator tool, optimised for solving Killer puzzles, is provided. This helps with some of the solving strategies (e.g. determining the sums of “innies” and “outies” - remainders inside and outside the a 3 x 3 square, row or column). The calculator includes formula text to keep track of entries. Lastly a support menu provides access to help, Killer Sudoku solving strategies and references sources of Killer Sudoku puzzles.

About

Cat Bubble Clear

Engage in a captivating puzzle game where you strategically slide and drop bubbles to fill rows. Eliminated rows score points, offering a simple yet addictive experience that challenges your thinking. Enjoy a bubble-popping adventure with this fun game.

Highlights
  • Slide and drop bubbles
  • Fill rows for points
  • Bubbles fall when unsupported
  • Row elimination mechanic
  • Strategic thinking challenges
Features
Read full description

In this delightful puzzle game, players have the ability to swipe each bubble left or right, maneuvering them into position. The bubbles will fall downwards if there are no other bubbles beneath them. When a row is completely filled with bubbles, it gets eliminated, scoring points for the player. Dive into this simple yet addictive game and enjoy a bubble-popping adventure that challenges your strategic thinking! Come and experience the fun!

Screenshots

Killer Aid4 screens
Cat Bubble Clear2 screens

Verdict

The call

The clearest difference is rating: Killer Aid at 4.9 against Cat Bubble Clear's 3.0. Killer Aid also leads on ads (none vs shown) and ratings volume (43 vs 2). Cat Bubble Clear's advantage is update cadence (every 6 weeks vs every 7 months). On price, in-app purchases, 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Killer Aid holds the better App Store score, 4.9 against 3.0. That said, the two scores are not equally well evidenced: Killer Aid has 43 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Killer Aid ships an update every 7 months, Cat Bubble Clear every 6 weeks. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

Scorecard5 real differences · 5 level
Killer Aid versus Cat Bubble Clear: the parameters behind the verdict, then further details
ParameterKiller AidCat Bubble Clear
PriceFreeFree
Rating4.9 (43 ratings) — better3.0 (2 ratings)
Positive reviews100.0% of reviews—
Number of ratings43 — better2
Update frequencyEvery 7 monthsEvery 6 weeks — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.412.0 — better
Further details — not scored
Size1 MB42 MB
Age rating4++4
DeveloperTrevor Butler瑞锋 于

Customer experience

Killer Aid

All ratings42 ratings
Positive97.6%
Neutral0.0%
Negative2.4%
Written reviews7 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Cat Bubble Clear

All ratings2 ratings
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

Killer Aid

No in-app purchases

None

Cat Bubble Clear

No in-app purchases

Questions

Is Killer Aid free?
Killer Aid is free to download, with no in-app purchases.
Is Cat Bubble Clear free?
Cat Bubble Clear is free to download, with no in-app purchases.
Which has better reviews, Killer Aid or Cat Bubble Clear?
Killer Aid is rated higher. Killer Aid averages 4.9 out of 5 from 43 ratings, while Cat Bubble Clear averages 3.0 from 2 ratings.
Do Killer Aid or Cat Bubble Clear have ads?
Cat Bubble Clear shows ads; Killer Aid does not.
Which is updated more often, Killer Aid or Cat Bubble Clear?
Killer Aid ships an update every 7 months, and Cat Bubble Clear every 6 weeks. Most recently, Killer Aid was updated on November 1, 2026 and Cat Bubble Clear on November 4, 2026.

Other comparisons