Comparison

Brain Puzzle 2 vs Onsen Stack

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

Head to head
About

Brain Puzzle 2

Engage in a humorous and imaginative puzzle-solving adventure with unconventional logic and unexpected twists. This sequel offers a richer experience with quirky plot lines and interactive elements, requiring creative thinking and wit to overcome bizarre challenges. Enjoy simple controls and unlimited hints to spark new ideas.

Highlights
  • Humorous storytelling
  • Brain-teasing design
  • Unconventional logic puzzles
  • Interactive elements
  • Simple tap and swipe controls
  • Unlimited hints
  • Absurd scenarios and trending jokes
Features
Read full description

This time, we’re continuing the humorous storytelling and brain-teasing design of the first game, bringing you an even richer and more surprising puzzle-solving experience. In this brand-new sequel, you'll follow quirky plot lines and make clever use of clues and interactive elements to crack a series of bizarre yet cleverly constructed levels. Each scene is packed with carefully designed puzzles, unconventional logic, and unexpected twists—making you think outside the box and enjoy a perfect mix of reasoning and creativity. No complex systems needed—just tap, swipe, and explore! It's a fun and accessible brain challenge that anyone can enjoy. And if you get stuck, don’t worry—our trusty “Brain Buddy” will give you playful hints to spark new ideas and help you move forward. Game Features: Bigger, Weirder Stories – Absurd scenarios mixed with trending jokes and clever twists, sparking laughs and wild creativity! Think Differently – These puzzles aren’t what they seem... flip your logic and find the unexpected solution. Simple, Fun Controls – Tap, drag, and solve. No learning curve—just dive in and play. Unlimited Hints – Stuck? Get as many helpful hints as you need. Join us now and challenge the limits of your imagination! Use your creativity and wit to conquer this absurd and delightful puzzle adventure, and feel the thrill of every solution. This is just the beginning! More levels and crazy stories are on the way—stay tuned! Contact Email: xiaobuinfo2019@gmail.com Website: https://www.smallstepinfo.com

About

Onsen Stack

Features
Read full description

Dive into a cozy hot spring and stack fluffy towels as high as you can! Onsen Stack is a minimalist stacking game, relaxing yet addictive: one tap to drop, perfect timing to win. ONE FINGER IS ENOUGH Tap at just the right moment to drop your towel. Easy to pick up, hard to master. ONSEN VIBES Hot springs, drifting steam, capybaras soaking nearby: a soothing kawaii art style made for unwinding. AIM FOR PERFECT Chain perfect drops, trigger combos and watch your score climb. The higher you stack, the tougher it gets. BONUSES AND SKINS Unlock unique towels in the shop, earn coins and switch up your style. Golden, scented and rainbow bonuses to collect. DAILY CHALLENGES Come back every day for fresh challenges and beat your best score. Free to play with ads. Perfect for a relaxing break.

Screenshots

Brain Puzzle 24 screens
Onsen Stack4 screens

Verdict

The call

The clearest difference is chart position: Brain Puzzle 2 at #45 against Onsen Stack's unranked. On price, update cadence, ads and in-app purchases 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.

UpkeepUpdate frequency

Brain Puzzle 2 ships an update monthly, Onsen Stack every 3 weeks. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

Scorecard1 real difference · 10 level
Brain Puzzle 2 versus Onsen Stack: the parameters behind the verdict, then further details
ParameterBrain Puzzle 2Onsen Stack
PriceFreeFree
Rating4.7 (18K ratings) — better—
Positive reviews64.0% of reviews—
Number of ratings18K — better—
Update frequencyMonthlyEvery 3 weeks — better
AdsYesYes
In-app purchasesNoNo
MonetizationAd-supported—
Best chart rank#45 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.015.0
Further details — not scored
Size346 MB182 MB
Age rating12+4+
DeveloperSmallStep Dev TeamSCM PUBLISHING

Bugs and requests

Brain Puzzle 2

Reported bugs

2 issues
  • Sky diet stage bug
  • Freezing on login screen

Requested features

3 requests
  • Bring back Chinese voice acting
  • Add old music from previous version
  • More BL (Boys' Love) content

Onsen Stack

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Brain Puzzle 2

No in-app purchases

None

Onsen Stack

No in-app purchases

Questions

Is Brain Puzzle 2 free?
Brain Puzzle 2 is free to download, with no in-app purchases.
Is Onsen Stack free?
Onsen Stack is free to download, with no in-app purchases.
Do Brain Puzzle 2 or Onsen Stack have ads?
Both Brain Puzzle 2 and Onsen Stack show ads.
Which is updated more often, Brain Puzzle 2 or Onsen Stack?
Brain Puzzle 2 ships an update monthly, and Onsen Stack every 3 weeks. Most recently, Brain Puzzle 2 was updated on November 3, 2026 and Onsen Stack on October 25, 2026.

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