# Space Tower vs Kage Shift

The clearest difference is ads: Kage Shift at none against Space Tower's shown. Kage Shift also leads on update cadence (every 9 days vs every 5 weeks). Space Tower's advantage is iOS requirement (13.0 vs 26.0). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Space Tower sells 21 one-off in-app purchases and Kage Shift sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Space Tower ships an update every 5 weeks, Kage Shift every 9 days. The most recent releases landed on October 23, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | Space Tower | Kage Shift |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (571 ratings)](https://appshunter.io/ios/app/space-tower-galaxy-tower-td/id1672563510/reviews)** | — |
| Number of ratings | **571** | — |
| Positive reviews | 40.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 9 days** |
| Monetization | Free with in-app purchases | — |
| Size | 190 MB | 41 MB |
| Requires iOS | **13.0** | 26.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [CYBERJOY LIMITED](https://appshunter.io/developer/1602455961) | [Thales Toniolo](https://appshunter.io/developer/363638613) |

## What reviewers say

### Space Tower

[App page](https://appshunter.io/ios/app/space-tower-galaxy-tower-td/id1672563510)

Command a galactic defense to protect your space tower from alien invaders. Strategically upgrade your tower's abilities and weapons to withstand relentless waves of enemies and defeat powerful bosses. Enjoy idle gameplay with ample rewards, even while offline.

**Highlights:** Idle tower defense gameplay, Strategic tower defense, Upgrade basic abilities, Activate powerful weapons, Unlock and improve tech abilities, Defend against alien attacks, Battle mighty bosses

**Features:** macOS Compatibility

**In-app purchases (21)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Newbie Pack | $2.99 | one-time |
| Chapter Pack | $2.99 | one-time |
| Special Pack 1 | $2.99 | one-time |
| Tournament Pack 1 | $2.99 | one-time |
| Pouch Of Diamonds | $4.99 | one-time |
| Chapter Pack | $4.99 | one-time |
| Special Pack 2 | $4.99 | one-time |
| Piggy Bank | $4.99 | one-time |
| Tournament Pack 2 | $4.99 | one-time |
| VIP Pack | $9.99 | one-time |
| Chapter Pack 3 | $9.99 | one-time |
| Special Pack 3 | $9.99 | one-time |
| Month Card | $9.99 | one-time |
| Tournament Pack 3 | $9.99 | one-time |
| Original Price Price 10.99 | $10.99 | one-time |
| Resource Pack | $14.99 | one-time |
| Original Price Price 17.99 | $17.99 | one-time |
| Special Pack 4 | $19.99 | one-time |
| Tournament Pack 4 | $19.99 | one-time |
| Premium Resource Pack | $29.99 | one-time |
| Original Price Price 79.99 | $79.99 | one-time |

**What reviewers like**

- 🎮 Engaging and addictive gameplay mechanics
- ⬆️ Extensive upgrade and progression systems
- 🎨 Visually appealing design
- ⏱️ Good for casual play between other activities

**What reviewers complain about**

- 💰 Aggressive monetization and pay-to-win mechanics
- ⚡ Energy system limits gameplay
- 🐛 Data synchronization failures across devices
- 🔄 Repetitive grinding required
- ⏳ Excessively long research/upgrade timers

**Reported bugs**

- Game freezes and fails to load progress data
- Data not syncing between devices with same Apple ID
- Ad-free purchases requiring repurchase on new devices
- Tournament upgrade buffs not applying correctly
- Research timer displaying incorrect duration (30 minutes showing as 31 hours)

**Requested features**

- More game levels
- Additional weapons and enemy variety
- Restore previously available game formats (Galaxy Background, Flaming Eye)
- Remove or reduce energy system
- Improve gold generation rates


### Kage Shift

[App page](https://appshunter.io/ios/app/kage-shift/id6809795997)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Second Chance | $1.99 | one-time |


## Frequently asked questions

### Is Space Tower free?

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

### Is Kage Shift free?

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

### Do Space Tower or Kage Shift have ads?

Space Tower shows ads; Kage Shift does not.

### Which is updated more often, Space Tower or Kage Shift?

Space Tower ships an update every 5 weeks, and Kage Shift every 9 days. Most recently, Space Tower was updated on October 23, 2026 and Kage Shift 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.*