# BLUK vs Stack AR

The clearest difference is review sentiment: BLUK at 79% against Stack AR's 32%. BLUK also leads on rating (4.8 vs 3.8) and ads (none vs shown). Stack AR's advantage is ratings volume (2.1K vs 157). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. BLUK sells 1 one-off in-app purchase and Stack AR sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

BLUK holds the better App Store score, 4.8 against 3.8. That said, the two scores are not equally well evidenced: Stack AR has 2.1K ratings behind it against 157, so its average is the more settled of the two. Written reviews point the same way: 79% of BLUK's written reviews are positive against 32% of Stack AR's.

BLUK ships an update every 2 weeks, Stack AR every 4 months. The most recent releases landed on September 21, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | BLUK | Stack AR |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (157 ratings)](https://appshunter.io/ios/app/bluk-physics-jump/id1054829917/reviews)** | [3.8 (2.1K ratings)](https://appshunter.io/ios/app/stack-ar/id1269638287/reviews) |
| Number of ratings | 157 | **2.1K** |
| Positive reviews | **78.7% of reviews** | 32.4% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Every 4 months |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 50 MB | 215 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Deepak Madathil](https://appshunter.io/developer/1025382927) | [Ketchapp](https://appshunter.io/developer/528065807) |

## What reviewers say

### BLUK

[App page](https://appshunter.io/ios/app/bluk-physics-jump/id1054829917)

Embark on a magical quest as a unique block to uncover the source of a mysterious darkness. Leap through physics-driven worlds, discover new abilities, and choose your destiny between story completion or endless challenges. Enjoy serene aesthetics and a skill-based platforming experience.

**Highlights:** Skill-based physics platformer, Discover new abilities with magical runes, One-touch gameplay with trajectory aiming, Choose between story mode or endless challenges, Minimalist aesthetics and ambient soundscape, Global leaderboards and achievements

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BLUK Premium | $1.99 | one-time |

**What reviewers like**

- 🎨 Beautiful graphics and aesthetic design
- 🎵 Excellent soundtrack and audio design
- 😌 Relaxing yet challenging gameplay
- 🎮 Addictive and engaging mechanics
- ⚙️ Smooth physics and polished mechanics

**What reviewers complain about**

- 🐛 Respawn/reset mechanic is frustrating
- ⏱️ Difficulty spikes significantly mid-game
- 📱 iPhone X compatibility issues
- 🔋 High battery consumption
- ⚪ Bright white flash on death is annoying

**Reported bugs**

- iPhone X display not properly optimized
- Sound not working for some users
- Excessive white flash on death
- Level progression unclear/confusing mechanics
- App repeatedly prompts for reviews

**Requested features**

- Multiplayer or ranked mode
- New levels and content updates
- Power-ups and special abilities
- Difficulty settings or easier starting levels
- More positive reinforcement/feedback


### Stack AR

[App page](https://appshunter.io/ios/app/stack-ar/id1269638287)

Build towering structures by stacking blocks in an augmented reality environment. Compete globally for the highest score with simple, beautiful graphics.

**Highlights:** Augmented Reality gameplay, Block stacking mechanics, Global high score competition, Simple and beautiful graphics

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |

**What reviewers like**

- 🚀 Challenging and fun
- 🎨 Variety of colors and themes
- 🕹️ Addictive gameplay
- 🔍 Satisfying AR experience
- 💻 Works well on newer devices

**What reviewers complain about**

- 🔍 AR not compatible with older devices
- 📺 Intrusive ads
- 🔋 Battery-draining
- 🐛 Bugs and glitches
- 💰 Paid version still has ads

**Reported bugs**

- AR mode not working
- Game freezing and crashing
- Ads triggering accidentally

**Requested features**

- Ability to pick unlocked skins
- Flashlight mode for AR
- Support for more devices
- Reduce ad frequency


## Frequently asked questions

### Is BLUK free?

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

### Is Stack AR free?

Stack AR is free to download, with in-app purchases available.

### Which has better reviews, BLUK or Stack AR?

BLUK is rated higher. BLUK averages 4.8 out of 5 from 157 ratings, while Stack AR averages 3.8 from 2.1K ratings.

### Do BLUK or Stack AR have ads?

Stack AR shows ads; BLUK does not.

### Which is updated more often, BLUK or Stack AR?

BLUK ships an update every 2 weeks, and Stack AR every 4 months. Most recently, BLUK was updated on September 21, 2026 and Stack AR on September 22, 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.*