Comparison

Grass Fire vs Area Sense Test

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

Head to head
About

Grass Fire

This educational app explores how the human brain interprets visual shapes. It's designed to help users understand the cognitive processes behind shape recognition and perception.

Highlights
  • Understanding shape interpretation
  • Cognitive process exploration
  • Visual perception testing
  • Educational content
Features
Read full description

Grass Fire helps players understand how our brains understand what shapes represent.

About

Area Sense Test

Features
Read full description

Can you tell which shape has a larger area? Two shapes appear side by side — pick the one with more area. Shapes that look larger are not always larger. Five rounds of optical illusions and clever traps test your true spatial perception. [How It Works] - Two shapes are displayed side by side — tap the one with the larger area - After you choose, the actual area values are revealed - 5 rounds featuring circles, rectangles, triangles, scattered shapes, and L-shapes [5 Rounds Full of Tricks] - Large circle vs small circle (straightforward comparison) - Vertical rectangle vs horizontal rectangle (same area — a trap!) - Large triangle vs medium circle (triangle looks bigger but circle wins) - 8 small circles vs 1 large circle (scattered vs concentrated) - L-shape vs rectangle (complex shape comparison — L-shape is larger) [6 Result Types] - Area Eagle (5/5) - Perfect spatial sense - Sharp Instinct (4/5) - Outstanding area judgment - Decent Eye (3/5) - Average spatial perception - Tricked Eye (2/5) - Fooled by optical illusions - Intuitive Judge (1/5) - Going with gut feeling - Artistic Vision (0/5) - You see beauty, not area [Key Features] - 5-round area comparison test with optical illusions and tricks - Actual area values revealed after each answer - Share your result screenshot with friends - 8 languages supported Find out your spatial sense type and challenge your friends!

Screenshots

Grass Fire4 screens
Area Sense Test4 screens

Verdict

The call

The clearest difference is update cadence: Area Sense Test at daily against Grass Fire's every 15 months. Grass Fire's advantage is iOS requirement (12.0 vs 15.1). On price, ads, in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Grass Fire ships an update every 15 months, Area Sense Test daily. The most recent releases landed on October 29, 2026 and October 28, 2026 respectively.

Scorecard2 real differences · 7 level
Grass Fire versus Area Sense Test: the parameters behind the verdict, then further details
ParameterGrass FireArea Sense Test
PriceFreeFree
Rating1.0 (3 ratings) — better—
Number of ratings3 — better—
Update frequencyEvery 15 monthsDaily — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS12.0 — better15.1
Further details — not scored
Size66 MB31 MB
Age rating4+4+
Developerarludo Pty Ltdpilyeong heo

In-app purchases

None

Grass Fire

No in-app purchases

None

Area Sense Test

No in-app purchases

Questions

Is Grass Fire free?
Grass Fire is free to download, with no in-app purchases.
Is Area Sense Test free?
Area Sense Test is free to download, with no in-app purchases.
Do Grass Fire or Area Sense Test have ads?
Neither Grass Fire nor Area Sense Test shows ads.
Which is updated more often, Grass Fire or Area Sense Test?
Grass Fire ships an update every 15 months, and Area Sense Test daily. Most recently, Grass Fire was updated on October 29, 2026 and Area Sense Test on October 28, 2026.

Other comparisons