Phy vs Crazy Red Ball and Walls
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Phy
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Phy-Stack is an interesting physics based entertainment game to kill your time. How to play: 1) Each game level consists of one or more platforms in GREEN color. 2) You will be provided with several shapes with RED color. 3) You can tap to get each of those shapes. 4) Use your logic and strategic skills to place the RED bodies over the GREEN platform(s). 5) Balance all shapes until count down ends, and win each level. 6) The faster you win, you can collect more stars. Play and finish all levels with full stars... :)
Crazy Red Ball and Walls
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The goal of the game is to get a ball to a glass. You specify where and at what speed should fly ball. There are obstacles on the way to target. The game has weak gravity, air resistance and an elastic collision.
Screenshots
Verdict
The clearest difference is ads: Phy at none against Crazy Red Ball and Walls's shown. Crazy Red Ball and Walls's advantage is iOS requirement (8.1 vs 13.0). On price, update cadence, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Phy ships an update every 54 months, Crazy Red Ball and Walls every 37 months. The most recent releases landed on September 21, 2026 and September 20, 2026 respectively.
| Parameter | Phy | Crazy Red Ball and Walls |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 54 months | Every 37 months — better |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 8.1 — better |
| Further details — not scored | ||
| Size | 2 MB | 65 MB |
| Age rating | 4+ | 4+ |
| Developer | Krishna Raj Salim | Ruslan Goncharenko |
In-app purchases
Phy
No in-app purchases
Crazy Red Ball and Walls
No in-app purchases
Questions
Is Phy free?
Is Crazy Red Ball and Walls free?
Do Phy or Crazy Red Ball and Walls have ads?
Which is updated more often, Phy or Crazy Red Ball and Walls?
Other comparisons
