Gravity One vs Virus Versus™
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Gravity One
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The purpose of Gravity One is to get the Ball to the Worm Hole past the Gravity Well. As many times as possible, using as little thruster fuel as possible. Forever and ever until the end of time. -Enjoy the effects of gravity to guide the Ball to Worm Hole. -Drag the Ball to define speed and direction and perhaps you can get the Ball to Worm Hole. -Use thrusters to guide the Ball but beware the cost of using thrusters. -Ball, Gravity Well and Worm Hole randomly placed in each game. -Infinite number of regions to complete. -Tens of achievements to achieve. -No advertisements.
Virus Versus™
Assume the role of an alien orchestrating a global virus and zombie apocalypse. Terraform the world, dehumanize humans, and abduct victims while avoiding the revenge of the undead. Enjoy fun graphics, upbeat music, and a unique apocalyptic theme.
- Alien virus zombie apocalypse simulation
- World terraforming with Bio Poop
- Dehumanize and abduct humans
- Avoid undead revenge
- Fun, bright graphics
- Upbeat music and sound effects
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Planet: Earth Population: 7 Billion Infestation: 0% That is, until YOU came along... Virus Versus™: Aliens Vs Zombies Edition lets YOU start the Alien Virus Zombie Apocalypse from the Alien's perspective and terraform the world - with Bio Poop! Is it YOUR fault? Of course not!! Aren't we ALL just trying to survive? While trying to achieve Total World Infestation? Spoiler Alert: This is NOT about World Peace! BE the Virus! Do the Alien's bidding! Dehumanize the Humans! Abduct the victims!! Orchestrate the alien virus apocalypse by wiping out the entire human population and avoiding the Undead Revenge of your recently dehumanized victims! Unleash your Dark Side and enjoy: + Fun, bright graphics. + Great, upbeat music. + Awesome, squishy sound effects. + Retro, state of the art un-animations. + and An apocalyptic zombie theme ripped straight from twisted imaginary headlines. Fun for the whole sick family! Virus Versus: Aliens Vs. Zombies Edition is a Pick Up and Play game for the whole family, unlike anything you've ever played before! Kid tested to assure simple but fun game play, Virus Versus™ will provide you with great fun -- and Great Moral Victory. Need more reasons? Good, there's one more thing... It's a paid app, so its totally ads free! Get it now. Enjoy. Get Virus Versus: Aliens Vs Zombies Edition NOW and achieve YOUR dreams of Total World Infestation.
Screenshots
Verdict
The clearest difference is price: Gravity One at Free against Virus Versus™'s $1.99. Gravity One also leads on update cadence (every 9 months vs every 78 months). Virus Versus™'s advantage is iOS requirement (15.6 vs 18.0). On 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
Gravity One is free to download; Virus Versus™ costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Gravity One ships an update every 9 months, Virus Versus™ every 78 months. The most recent releases landed on October 2, 2026 and September 29, 2026 respectively.
| Parameter | Gravity One | Virus Versus™ |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | Every 9 months — better | Every 78 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15.6 — better |
| Further details — not scored | ||
| Size | 15 MB | 300 MB |
| Age rating | 4+ | 9+ |
| Developer | Sami Salkosuo | Edward Ganges |
In-app purchases
Gravity One
No in-app purchases
Virus Versus™
No in-app purchases
