# SPINFO Build Blocks vs Rubber Ducks!

The clearest difference is ads: SPINFO Build Blocks at none against Rubber Ducks!'s shown. SPINFO Build Blocks also leads on update cadence (daily vs every 6 days). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SPINFO Build Blocks ships an update daily, Rubber Ducks! every 6 days. The most recent releases landed on October 31, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | SPINFO Build Blocks | Rubber Ducks! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.4 (7 ratings)](https://appshunter.io/ios/app/rubber-ducks/id6781440628/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Daily** | Every 6 days |
| Monetization | — | Ad-supported |
| Size | 1 MB | 219 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 4+ | 4+ |
| Developer | [Sandip Patel](https://appshunter.io/developer/1877530769) | [Racoza Studios, LLC](https://appshunter.io/developer/6781440630) |

## What reviewers say

### SPINFO Build Blocks

[App page](https://appshunter.io/ios/app/spinfo-build-blocks/id6759225597)

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

**In-app purchases:** none


### Rubber Ducks!

[App page](https://appshunter.io/ios/app/rubber-ducks/id6781440628)

A casual merge game where you drop rubber ducks into a tub, matching identical ones to create rarer and more unusual designs. Aim for a high score while managing the tub's space and discovering new duck characters. Perfect for quick, relaxing play sessions.

**Highlights:** Casual merge gameplay, Cute rubber duck characters, Relaxing bathtub setting, Score-chasing mechanics, Discover new duck designs, Regular updates planned

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

**In-app purchases:** none


## Frequently asked questions

### Is SPINFO Build Blocks free?

SPINFO Build Blocks is free to download, with no in-app purchases.

### Is Rubber Ducks! free?

Rubber Ducks! is free to download, with no in-app purchases.

### Do SPINFO Build Blocks or Rubber Ducks! have ads?

Rubber Ducks! shows ads; SPINFO Build Blocks does not.

### Which is updated more often, SPINFO Build Blocks or Rubber Ducks!?

SPINFO Build Blocks ships an update daily, and Rubber Ducks! every 6 days. Most recently, SPINFO Build Blocks was updated on October 31, 2026 and Rubber Ducks! on November 5, 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.*