# Gravnoid vs Stack Tower

The clearest difference is in-app purchases: Gravnoid at none against Stack Tower's 1. Gravnoid also leads on ads (none vs shown) and update cadence (every 6 weeks vs every 5 months). On price, rating, review sentiment and device support there is nothing between them.

Both are free to download. Stack Tower sells 1 one-off in-app purchase. Gravnoid asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Gravnoid against 5.0 for Stack Tower. That said, the two scores are not equally well evidenced: Gravnoid has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.

Gravnoid ships an update every 6 weeks, Stack Tower every 5 months. The most recent releases landed on September 29, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Gravnoid | Stack Tower |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (5 ratings)](https://appshunter.io/ios/app/gravnoid/id6447106539/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/stack-tower-block-stacker/id6760201122/reviews) |
| Number of ratings | **5** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 6 weeks** | Every 5 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 72 MB | 5 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Schaff Games, LLC](https://appshunter.io/developer/1680348606) | [Jenesh Napit](https://appshunter.io/developer/1742677233) |

## What reviewers say

### Gravnoid

[App page](https://appshunter.io/ios/app/gravnoid/id6447106539)

Navigate the cosmos in zero gravity, dodging celestial hazards like black holes and meteor showers. Master intuitive thruster controls to survive an ever-changing sequence of challenges in this endless space adventure.

**Highlights:** Zero gravity navigation, Intuitive thruster controls, Procedurally generated challenges, Dodge black holes and meteors, Endless survival gameplay

**Features:** macOS Compatibility

**In-app purchases:** none


### Stack Tower

[App page](https://appshunter.io/ios/app/stack-tower-block-stacker/id6760201122)

Tap to stack blocks with precision and build the tallest tower possible. Perfect placements are key to maintaining width and boosting your score. Compete in daily challenges and real-time multiplayer matches.

**Highlights:** Precision block stacking, Daily challenges with unique levels, Real-time multiplayer battles, Game Center leaderboards, Unlockable skins and achievements, Satisfying sound and haptic feedback

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Upgrade | $0.99 | one-time |


## Frequently asked questions

### Is Gravnoid free?

Gravnoid is free to download, with no in-app purchases.

### Is Stack Tower free?

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

### Which has better reviews, Gravnoid or Stack Tower?

Gravnoid and Stack Tower are both rated 5.0 out of 5 on the App Store, from 5 and 1 ratings respectively.

### Do Gravnoid or Stack Tower have ads?

Stack Tower shows ads; Gravnoid does not.

### Which is updated more often, Gravnoid or Stack Tower?

Gravnoid ships an update every 6 weeks, and Stack Tower every 5 months. Most recently, Gravnoid was updated on September 29, 2026 and Stack Tower on October 6, 2026.

---

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