Comparison

Nano Doc vs Ball Eating Simulator

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

Head to head
About

Nano Doc

Engage in a microscopic battle within a patient's bloodstream. Your mission is to eliminate invading bacteria and viruses while carefully avoiding vital red and white blood cells. Manage the patient's infection rate and temperature to prevent critical organ damage and win the game.

Highlights
  • Fight bacteria and viruses
  • Avoid red blood cells
  • Avoid white blood cells
  • Manage infection rate
  • Monitor patient temperature
  • Prevent brain cell death
Features
Read full description

Enter the bloodstream to fight off bacteria and viruses. You play the role of Nano Doc, inserted into the blood stream of a sick patient. You must destroy as many viruses and bacteria as possible without hitting the red blood cells or white blood cells. Killing red blood cells increases the heart rate causing the blood to pump faster making cells harder to hit. Killing white blood cells increases the rate of viral multiplication. Patient starts with a 50% viral infection, as bacteria and viruses are killed the infection goes down, but any bacteria or virus cells that slip past increase the infection. The patient starts with a temperature of 100 degree, as the infection goes up so does the temperature. If the temperature reaches 105 degrees the players brain cells start to die. If all the brain cells die the game is over. The game is won when the infection rate is 0

About

Ball Eating Simulator

Grow your ball by consuming smaller orbs and other players in a competitive arena. Customize your character with unique skins and utilize power-ups to gain an advantage. Climb the leaderboards and become the ultimate orb champion.

Highlights
  • Eat orbs to grow
  • Devour other players
  • Character customization with skins
  • Strategic power-ups
  • Leaderboard competition
  • Daily login rewards
Features
Read full description

Enter the thrilling world of Ball Eating Simulator, where you start small and grow big! Eat tiny orbs to grow your ball, chase and devour other players, and rise to the top of the leaderboard. Customize your character with skins, use power-ups, and experience non-stop action in this immersive battle arena! Choose from over 20 unique skins to customize your ball and stand out in the arena. Log in daily to claim special gifts, spin the lucky wheel for exciting rewards, and collect in-game gifts as you conquer challenges and reach milestones. Compete for the top spot on the leaderboard, use power-ups strategically to gain an edge, and experience an addictive gameplay loop that's all about growing big and dominating the competition! Are you ready to become the ultimate orb champion?

Screenshots

Nano Doc1 screens
Ball Eating Simulator4 screens

Verdict

The call

The clearest difference is review sentiment: Ball Eating Simulator at 50% against Nano Doc's 0%. Ball Eating Simulator also leads on rating (4.2 vs 3.7) and ratings volume (23 vs 3). Nano Doc's advantage is ads (none vs shown) and update cadence (every 4 days vs every 6 months). On price, 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.

ReceptionRating · Positive reviews · Number of ratings

Ball Eating Simulator holds the better App Store score, 4.2 against 3.7. That said, the two scores are not equally well evidenced: Ball Eating Simulator has 23 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 0% of Nano Doc's written reviews are positive against 50% of Ball Eating Simulator's.

UpkeepUpdate frequency

Nano Doc ships an update every 4 days, Ball Eating Simulator every 6 months. The most recent releases landed on October 14, 2026 and October 24, 2026 respectively.

Scorecard7 real differences · 3 level
Nano Doc versus Ball Eating Simulator: the parameters behind the verdict, then further details
ParameterNano DocBall Eating Simulator
PriceFreeFree
Rating3.7 (3 ratings)4.2 (23 ratings) — better
Positive reviews0.0% of reviews50.0% of reviews — better
Number of ratings323 — better
Update frequencyEvery 4 days — betterEvery 6 months
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better12.0
Further details — not scored
Size205 MB109 MB
Age rating9+4+
DeveloperChristopher CarnellEbubekir Yanik

Customer experience

Nano Doc

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Ball Eating Simulator

All ratings20 ratings
Positive75.0%
Neutral10.0%
Negative15.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

Nano Doc

No in-app purchases

None

Ball Eating Simulator

No in-app purchases

Questions

Is Nano Doc free?
Nano Doc is free to download, with no in-app purchases.
Is Ball Eating Simulator free?
Ball Eating Simulator is free to download, with no in-app purchases.
Which has better reviews, Nano Doc or Ball Eating Simulator?
Ball Eating Simulator is rated higher. Nano Doc averages 3.7 out of 5 from 3 ratings, while Ball Eating Simulator averages 4.2 from 23 ratings.
Do Nano Doc or Ball Eating Simulator have ads?
Ball Eating Simulator shows ads; Nano Doc does not.
Which is updated more often, Nano Doc or Ball Eating Simulator?
Nano Doc ships an update every 4 days, and Ball Eating Simulator every 6 months. Most recently, Nano Doc was updated on October 14, 2026 and Ball Eating Simulator on October 24, 2026.

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