# SPHERE vs HexTowerDefense

The clearest difference is in-app purchases: SPHERE at none against HexTowerDefense's 4. SPHERE also leads on iOS requirement (13.0 vs 18.5). HexTowerDefense's advantage is ads (none vs shown) and update cadence (every 10 days vs every 4 months). On price and device support there is nothing between them.

Both are free to download. HexTowerDefense sells 4 one-off in-app purchases. SPHERE asks for nothing beyond the download.

SPHERE ships an update every 4 months, HexTowerDefense every 10 days. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | SPHERE | HexTowerDefense |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (4 ratings)](https://appshunter.io/ios/app/hextowerdefense/id6759407759/reviews)** |
| Number of ratings | — | **4** |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Every 10 days** |
| Monetization | — | Free |
| Size | 154 MB | 106 MB |
| Requires iOS | **13.0** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tomoki Fukushima](https://appshunter.io/developer/1777185003) | [Maxime Hussenet](https://appshunter.io/developer/1843228499) |

## What reviewers say

### SPHERE

[App page](https://appshunter.io/ios/app/sphere-defense/id6737588413)

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

**In-app purchases:** none


### HexTowerDefense

[App page](https://appshunter.io/ios/app/hextowerdefense/id6759407759)

Engage in strategic tower defense on a hexagonal grid. Master placement, range, and timing across 50 campaign levels, daily challenges, and a community workshop. Enjoy a retro aesthetic with no energy timers and limited ads.

**Highlights:** Hexagonal grid placement, 50 handcrafted campaign levels, Daily challenges and endless mode, Community Workshop for sharing layouts, Eight tower types, Retro neon aesthetic

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| x2/x4 Speed | $1.99 | one-time |
| Remove Ads | $3.99 | one-time |
| Gotta Go Faster | $4.99 | one-time |
| All-in-One | $4.99 | one-time |


## Frequently asked questions

### Is SPHERE free?

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

### Is HexTowerDefense free?

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

### Do SPHERE or HexTowerDefense have ads?

SPHERE shows ads; HexTowerDefense does not.

### Which is updated more often, SPHERE or HexTowerDefense?

SPHERE ships an update every 4 months, and HexTowerDefense every 10 days. Most recently, SPHERE was updated on November 8, 2026 and HexTowerDefense on October 31, 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.*