Block vs Block vs Planet Gravity
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Block vs Block
Experience a unique puzzle game where blocks ascend instead of fall. Challenge yourself with 16 different shapes and 4 special items. Play against the computer or another human on iPad.
- Reverse gravity gameplay
- 16 different block shapes
- 4 special items
- VS mode against computer
- Human vs Human mode (iPad only)
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The world most attractive puzzle game. Modify the previous version "Block vs Block", this game is playing in reverse mode. Blocks are raising up instead of drop down. It is very challenging! How to play! It is no need to explain. Like "Block vs Block", it allow you play against computer, or human (iPad only). - 16 different shapes - 4 different special items - VS mode Download and enjoy it now!
Planet Gravity
Explore the gravitational pull of different celestial bodies. Watch pendulums swing and collide under varying gravitational forces, offering a unique physics simulation experience.
- Select different planets for unique gravity
- Observe pendulum collisions
- Physics-based simulation
- Educational planet facts
- Interactive entertainment
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Planet Gravity isn't just about gravity anymore. Select a planet to get a scrolling fact about that planet on the display. This app is a twist on the Newton’s cradle balance balls. The pendulum balls collide just like the real set and you can select other planets to use that planet’s gravity. How does the pendulum swing with different gravity? Even the Sun has gravity - see what it does to the motion of the pendulums (well they'd probably melt but you get the idea.....)
Screenshots
Verdict
The clearest difference is price: Planet Gravity at Free against Block vs Block's $4.99. Planet Gravity also leads on ads (none vs shown). Block vs Block's advantage is review sentiment (67% vs 25%). On update cadence, 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
Planet Gravity is free to download; Block vs Block costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Block vs Block ships an update every 9 months, Planet Gravity every 14 months. The most recent releases landed on September 23, 2026 and June 7, 2026 respectively.
| Parameter | Block vs Block | Planet Gravity |
|---|---|---|
| Price | $4.99 | Free — better |
| Rating | 3.0 (1 ratings) — better | — |
| Positive reviews | 66.7% of reviews — better | 25.0% of reviews |
| Number of ratings | 1 — better | — |
| Update frequency | Every 9 months — better | Every 14 months |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Paid | Free — better |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.6 — better | 17.6 |
| Further details — not scored | ||
| Size | 25 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | Oscar Tsang | Niagara Mobile LLC |
Customer experience
Block vs Block
Planet Gravity
In-app purchases
Block vs Block
No in-app purchases
Planet Gravity
No in-app purchases
Questions
Is Block vs Block free?
Is Planet Gravity free?
Do Block vs Block or Planet Gravity have ads?
Which is updated more often, Block vs Block or Planet Gravity?
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