Bubble Grotto vs Mega Donut
Price, ratings, monetisation and update history for both games, side by side ā with what reviewers say about each.
Bubble Grotto
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Can you get Buster out of the Grotto? Guide Buster through a series of increasingly challenging levels, dodging hazards and controlling his size to reach each exit. But getting there isn't enough. Buster has to be the right size to escape. Too small? He can't get out. Too big? He can't get out ā and risks bursting. Get it just right and Buster can escape to face the next challenge. Master every level, make it all the way out of the Grotto and Buster earns the ultimate prize ā becoming King Bubble Buster. FEATURES ⢠Guide Buster through increasingly challenging levels ⢠Grow and shrink Buster to find the perfect escape size ⢠Dodge obstacles and dangerous hazards ⢠Balance size, movement and timing ⢠Simple controls with skill-based physics gameplay ⢠Increasing challenge as you progress ⢠Complete every level and escape the Grotto ⢠Become King Bubble Buster! Can you master every level and lead Buster to freedom?
Mega Donut
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Drop cute googly-eyed donuts into the jar. When two identical donuts touch, they merge into a bigger one ā all the way up to the legendary donut. Keep the jar from overflowing and chase huge combos. ⢠Simple one-touch drop, juicy physics ⢠Zen mode + Daily Challenge ⢠Collect all 10 donuts, beat your best score ⢠Colorblind mode, larger text, reduced motion ⢠100% offline Ā· no ads Ā· no in-app purchases
Screenshots
Verdict
The clearest difference is ads: Mega Donut at none against Bubble Grotto's shown. Mega Donut also leads on update cadence (every 5 days vs every 3 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Bubble Grotto ships an update every 3 months, Mega Donut every 5 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.
| Parameter | Bubble Grotto | Mega Donut |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 5 days ā better |
| Ads | Yes | No ā better |
| In-app purchases | No | No |
| Devices | iPhone, iPod ā better | iPhone |
| Requires iOS | 15.0 ā better | 16.0 |
| Further details ā not scored | ||
| Size | 187 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | John McArthur | Dentagram |
In-app purchases
Bubble Grotto
No in-app purchases
Mega Donut
No in-app purchases
Questions
Is Bubble Grotto free?
Is Mega Donut free?
Do Bubble Grotto or Mega Donut have ads?
Which is updated more often, Bubble Grotto or Mega Donut?
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