# Butterfly Surprise vs Odd One

The clearest difference is ads: Odd One at none against Butterfly Surprise's shown. Odd One also leads on monetization model (free vs free with in-app purchases) and update cadence (weekly vs monthly). Butterfly Surprise's advantage is review sentiment (100% vs 92%) and iOS requirement (13.0 vs 17.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Butterfly Surprise sells 1 one-off in-app purchase and Odd One sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Butterfly Surprise ships an update monthly, Odd One weekly. The most recent releases landed on November 4, 2026 and November 10, 2026 respectively.

## The numbers

| Metric | Butterfly Surprise | Odd One |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (10 ratings)](https://appshunter.io/ios/app/butterfly-surprise/id6480409544/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | **100.0% of reviews** | 91.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Monthly | **Weekly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 81 MB | 23 MB |
| Requires iOS | **13.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tim Kretz](https://appshunter.io/developer/1042055305) | [Lucas Hesseldieck](https://appshunter.io/developer/6788079537) |

## What reviewers say

### Butterfly Surprise

[App page](https://appshunter.io/ios/app/butterfly-surprise/id6480409544)

Merge colorful caterpillars to discover and collect rare butterflies. Engage in addictive gameplay mechanics while learning fascinating facts about these beautiful insects. Challenge yourself to reach the legendary butterflies.

**Highlights:** Merge caterpillars, Collect rare butterflies, Learn butterfly facts, Addictive gameplay, Unlock legendary butterflies

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $3.99 | one-time |


### Odd One

[App page](https://appshunter.io/ios/app/odd-one/id6788079535)

A minimalist brain-training puzzle game where players identify the single tile that breaks a pattern in a grid. It offers four distinct game modes, including classic, arcade, endless, and daily challenges, all designed for calm, logical play.

**Highlights:** Four distinct game modes, Minimalist brain-training puzzles, Handcrafted and generated levels, No timer or time-based challenges, Color-assist mode for color-blind players, Light and dark mode, Calm piano soundtrack

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small tip | $0.99 | one-time |
| Coffee tip | $2.99 | one-time |
| Custom Tip | $4.00 | one-time |
| Generous tip | $8.99 | one-time |


## Frequently asked questions

### Is Butterfly Surprise free?

Butterfly Surprise is free to download, with in-app purchases available.

### Is Odd One free?

Odd One is free to download, with in-app purchases available.

### Do Butterfly Surprise or Odd One have ads?

Butterfly Surprise shows ads; Odd One does not.

### Which is updated more often, Butterfly Surprise or Odd One?

Butterfly Surprise ships an update monthly, and Odd One weekly. Most recently, Butterfly Surprise was updated on November 4, 2026 and Odd One on November 10, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*