# Fluid Sort Puzzle vs Build it Up

The clearest difference is review sentiment: Build it Up at 91% against Fluid Sort Puzzle's 6%. Build it Up also leads on rating (4.9 vs 1.8) and update cadence (every 6 days vs every 3 weeks). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Build it Up holds the better App Store score, 4.9 against 1.8. That said, the two scores are not equally well evidenced: Build it Up has 331 ratings behind it against 53, so its average is the more settled of the two. Written reviews point the same way: 6% of Fluid Sort Puzzle's written reviews are positive against 91% of Build it Up's.

Fluid Sort Puzzle ships an update every 3 weeks, Build it Up every 6 days. The most recent releases landed on October 15, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Fluid Sort Puzzle | Build it Up |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.8 (53 ratings)](https://appshunter.io/ios/app/fluid-sort-puzzle/id6761420628/reviews) | **[4.9 (331 ratings)](https://appshunter.io/ios/app/build-it-uplit-skyscraper/id6767507281/reviews)** |
| Number of ratings | 53 | **331** |
| Positive reviews | 6.1% of reviews | **90.9% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Every 6 days** |
| Monetization | Ad-supported | Ad-supported |
| Size | 131 MB | 228 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 9+ | 4+ |
| Developer | [degan keran](https://appshunter.io/developer/1889512414) | [满婷 聂](https://appshunter.io/developer/1885386428) |

## What reviewers say

### Fluid Sort Puzzle

[App page](https://appshunter.io/ios/app/fluid-sort-puzzle/id6761420628)

A relaxing color-sorting puzzle game where you rearrange liquids by pouring them between tubes. Progress through increasingly challenging levels with unique mechanics like frozen and locked tubes.

**Highlights:** 30 handcrafted levels, Classic, limited moves, and time trial modes, Frozen & locked tube mechanics, Star rating system, Undo and shuffle tools, Offline play

**Features:** macOS Compatibility

**In-app purchases:** none


### Build it Up

[App page](https://appshunter.io/ios/app/build-it-uplit-skyscraper/id6767507281)

Build impressive skyscrapers by tapping to drop floors into place. Enjoy a satisfying and stress-free construction experience as you stack them higher and higher. Crown your creation with a roof and move on to your next architectural project.

**Highlights:** Tap to drop floors, Stack floors for height, Add a roof to complete, Stress-free gameplay, Meditative building experience, Fast-paced tapping option

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

**In-app purchases:** none


## Frequently asked questions

### Is Fluid Sort Puzzle free?

Fluid Sort Puzzle is free to download, with no in-app purchases.

### Is Build it Up free?

Build it Up is free to download, with no in-app purchases.

### Which has better reviews, Fluid Sort Puzzle or Build it Up?

Build it Up is rated higher. Fluid Sort Puzzle averages 1.8 out of 5 from 53 ratings, while Build it Up averages 4.9 from 331 ratings.

### Do Fluid Sort Puzzle or Build it Up have ads?

Both Fluid Sort Puzzle and Build it Up show ads.

### Which is updated more often, Fluid Sort Puzzle or Build it Up?

Fluid Sort Puzzle ships an update every 3 weeks, and Build it Up every 6 days. Most recently, Fluid Sort Puzzle was updated on October 15, 2026 and Build it Up on October 18, 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.*