Comparison

Rainbow Secrets vs Otter Smash Shello

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

Head to head
About

Rainbow Secrets

Explore vibrant worlds inspired by nature in this colorful puzzle game. Match color combinations across four unique themes: Flowers, Sea, Forest, and Rainbow. With 100 handcrafted levels, it offers a relaxing yet challenging experience.

Highlights
  • Nature-inspired themes (Flowers, Sea, Forest, Rainbow)
  • 100 handcrafted levels
  • Color matching puzzles
  • Relaxing music
  • Free undo options
Read full description

What's the difference between dreams and reality? Maybe it's all about colors? Rainbow Secrets is a game made for you to bring your dream colors come to real. In this colorful game we made four parts for you inspired by nature: • Flowers - you'll feel all the pallets of flowers with the special music which will make you feel like in flowers field. • Sea - with all the range of blue, and the game will come more challenging as the color combinations will gradually come harder. Music will help you too feel sea breeze and relax. • Forest- level of green. It will bring you to magical atmosphere of forest. • Rainbow- After all, you will reach the Rainbow level the most colorful and complicated one. _________________________________________________________ Rainbow Secrets offers you 100 handcrafted beautiful levels, from 2-color to 5-color boards, also we prepare 100 free undo’s for you. We believe you can find the Rainbow Secrets. Enjoy Rainbow Secrets!

About

Otter Smash Shello

Engage in a relaxing tapping game where you help an otter smash shells. Enjoy satisfying impacts, smooth animations, and a calming rhythm designed to ease stress and brighten your day with simple, cheerful gameplay.

Highlights
  • Tap to smash shells
  • Playful otter character
  • Stress-relieving gameplay
  • Smooth visual animations
  • Easy one-touch controls
  • Seaside adventure setting
Features
Read full description

Step into the charming world of Otter Smash Shello, where playful otters and simple tapping create a relaxing and stress-relieving experience. Tap the screen to help the otter smash open shells with satisfying impacts, smooth animations, and lively visual effects. Every successful smash brings a rewarding sense of progress, while the steady rhythm of tapping creates a calming atmosphere designed to help ease stress and brighten your day. With simple controls and cheerful gameplay, every session is easy to enjoy anytime. Features Tap to Smash - Help the otter break open shells through simple and satisfying tapping interactions. Otter Adventure - Enjoy playful moments with an adorable otter in a colorful seaside setting. Stress Relief Experience - Repetitive smashing actions create a relaxing and soothing gameplay rhythm. Smooth Visual Feedback - Lively animations make every shell-breaking moment feel satisfying. Easy Controls - Simple mechanics allow comfortable play anytime. Enjoy the relaxing rhythm of Otter Smash Shello, help the otter smash open shells with simple taps, and unwind with a smooth and satisfying seaside adventure.

Screenshots

Rainbow Secrets4 screens
Otter Smash Shello4 screens

Verdict

The call

The clearest difference is rating: Rainbow Secrets at 5.0 against Otter Smash Shello's 3.0. Rainbow Secrets also leads on ads (none vs shown) and iOS requirement (9.0 vs 15.0). Otter Smash Shello's advantage is in-app purchases (none vs 4). On price, ratings volume, update cadence 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. Rainbow Secrets sells 4 one-off in-app purchases. Otter Smash Shello asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Rainbow Secrets holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

UpkeepUpdate frequency

Rainbow Secrets ships an update every 2 weeks, Otter Smash Shello every 8 days. The most recent releases landed on October 29, 2026 and October 22, 2026 respectively.

Scorecard5 real differences · 5 level
Rainbow Secrets versus Otter Smash Shello: the parameters behind the verdict, then further details
ParameterRainbow SecretsOtter Smash Shello
PriceFreeFree
Rating5.0 (1 ratings) — better3.0 (2 ratings)
Positive reviews100.0% of reviews—
Number of ratings12 — better
Update frequencyEvery 2 weeksEvery 8 days — better
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS9.0 — better15.0
Further details — not scored
Size56 MB184 MB
Age rating+417+
DeveloperNextStack LLC欣怡 刘

In-app purchases

4 purchases

Rainbow Secrets

One-time4
  • 25 Unods$0.99
  • 100 Undos$2.99
  • 200 Undos$4.99
Show 1 more
  • Skip button$4.99
None

Otter Smash Shello

No in-app purchases

Questions

Is Rainbow Secrets free?
Rainbow Secrets is free to download, with in-app purchases available.
Is Otter Smash Shello free?
Otter Smash Shello is free to download, with no in-app purchases.
Which has better reviews, Rainbow Secrets or Otter Smash Shello?
Rainbow Secrets is rated higher. Rainbow Secrets averages 5.0 out of 5 from 1 ratings, while Otter Smash Shello averages 3.0 from 2 ratings.
Do Rainbow Secrets or Otter Smash Shello have ads?
Otter Smash Shello shows ads; Rainbow Secrets does not.
Which is updated more often, Rainbow Secrets or Otter Smash Shello?
Rainbow Secrets ships an update every 2 weeks, and Otter Smash Shello every 8 days. Most recently, Rainbow Secrets was updated on October 29, 2026 and Otter Smash Shello on October 22, 2026.

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