Comparison

STOP vs TwentySeven

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

Head to head
About

STOP

Features
Read full description

This is a combat action game to destroy the growth of STOP-CELL that caused the pandemic on a global scale. Easy operation allowed to set the cat human beings of ten people by touching the screen, only to attack the enemy automatically by releasing the touch, anyone can play easily. Enjoy the sound and battle a powerful small cat human who fight hard.

About

TwentySeven

A 3D puzzle game where you merge colored balloons on a grid to create larger ones. Master spatial and combinatorial thinking to achieve increasingly complex goals, from a level 8 balloon to a full house of different balloon sizes.

Highlights
  • 3D grid-based balloon merging
  • Enhances spatial and combinatorial thinking
  • Multiple grid sizes and challenges
  • Tutorial and undo options
  • Customizable controls
  • External keyboard support
Features
Read full description

27 or Twenty-Seven is a novel puzzle game that enhances spacial and combinatorial thinking. You move colored balloons on a 3D-grid. Adjacent balloons of the same color and size merge to form a balloon of the next higher size. Your goal is to get ever larger balloons. You start on the edges of a cube 2×2×2 grid, with two balloons of level 1 (pink) or 2 (violet). Each time you move or merge balloons, you get another pink balloon. Move and merge away to get a blue (level 3) balloon, then a turquoise (level 4) balloon. Your first goal is a red balloon of level 8. This sounds easy, but can be tricky since you have only 8 positions available. Luckily, you can start over whenever you like. Expert players achieve a red balloon in a few minutes. Even they don't achieve the next goal every time: a full house of 8 different balloons. Once you get tired on the cube, which is in fact a 2×2×2 grid, we have other challenges in store, starting with a 2×2×3 grid, a 2×2×4 grid, and going up to a 3×3×3 grid with 27 possible positions, again in a cube. Now guess where we got our name? While the fundamental rules are the same, winning strategies for each grid vary. The game is easy to learn, and we have a tutorial to teach you. We give you a few opportunities to undo if you make a mistake. You may move and merge balloons by swiping over your touch screen or by pushing buttons. You can also use an external keyboard. You may turn the grid in any direction you like. Buttons can be placed on the right or the left side of screen, or be hidden.

Screenshots

STOP4 screens
TwentySeven4 screens

Verdict

The call

The clearest difference is in-app purchases: STOP at none against TwentySeven's 2. STOP also leads on update cadence (every 10 days vs every 21 months) and iOS requirement (12.0 vs 16.0). TwentySeven's advantage is ads (none vs shown). 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. TwentySeven sells 2 one-off in-app purchases. STOP asks for nothing beyond the download.

UpkeepUpdate frequency

STOP ships an update every 10 days, TwentySeven every 21 months. The most recent releases landed on October 26, 2026 and October 22, 2026 respectively.

Scorecard4 real differences · 5 level
STOP versus TwentySeven: the parameters behind the verdict, then further details
ParameterSTOPTwentySeven
PriceFreeFree
Rating—5.0 (2 ratings) — better
Number of ratings—2 — better
Update frequencyEvery 10 days — betterEvery 21 months
AdsYesNo — better
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS12.0 — better16.0
Further details — not scored
Size30 MB2 MB
Age rating4+4+
DeveloperERXValue from Software LLC

In-app purchases

None

STOP

No in-app purchases

2 purchases

TwentySeven

One-time2
  • 3 undo sequences$0.99
  • 10 undo sequences$1.99

Questions

Is STOP free?
STOP is free to download, with no in-app purchases.
Is TwentySeven free?
TwentySeven is free to download, with in-app purchases available.
Do STOP or TwentySeven have ads?
STOP shows ads; TwentySeven does not.
Which is updated more often, STOP or TwentySeven?
STOP ships an update every 10 days, and TwentySeven every 21 months. Most recently, STOP was updated on October 26, 2026 and TwentySeven on October 22, 2026.

Other comparisons