# Digger Machine vs Space Tower Defense

The clearest difference is rating: Space Tower Defense at 5.0 against Digger Machine's 4.5. Space Tower Defense also leads on ads (none vs shown) and update cadence (weekly vs every 3 months). Digger Machine's advantage is ratings volume (351 vs 2) and iOS requirement (13.0 vs 18.5). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. Digger Machine sells 9 one-off in-app purchases and Space Tower Defense sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Space Tower Defense holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Digger Machine has 351 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 79% of Digger Machine's written reviews are positive against 100% of Space Tower Defense's.

Digger Machine ships an update every 3 months, Space Tower Defense weekly. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.

## The numbers

| Metric | Digger Machine | Space Tower Defense |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (351 ratings)](https://appshunter.io/ios/app/digger-machine-dig-minerals/id996857258/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/space-tower-defense/id6780271383/reviews)** |
| Number of ratings | **351** | 2 |
| Positive reviews | 79.0% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Weekly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 104 MB | 21 MB |
| Requires iOS | **13.0** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Dariusz Mazur](https://appshunter.io/developer/829907063) | [Tobias Ehret](https://appshunter.io/developer/1829643087) |

## What reviewers say

### Digger Machine

[App page](https://appshunter.io/ios/app/digger-machine-dig-minerals/id996857258)

Embark on an arcade adventure to unearth valuable minerals like gold and diamonds. Upgrade your digging machine, build bases, and navigate treacherous mines filled with traps and bosses. Collect and sell 50 types of minerals to enhance your equipment and become the ultimate miner.

**Highlights:** Dig for 50 types of minerals, Upgrade digging machine, Build bases, Navigate 3 underground mines, Complete missions, Use 6 special actions

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Diamond Pack | $1.99 | one-time |
| Remove Ads | $1.99 | one-time |
| Diamond Pack | $2.99 | one-time |
| Time limited custom pack | $2.99 | one-time |
| Good and valuable starter pack | $3.99 | one-time |
| Big Diamond Pack | $5.99 | one-time |
| 50% off - Best available sale! | $6.99 | one-time |
| Golden Diamond Pack | $11.99 | one-time |
| Mega Diamond Pack | $13.99 | one-time |

**What reviewers like**

- 🎮 Highly addictive and engaging gameplay
- 👍 Faithful recreation of classic Motherload game
- 📱 Works well on mobile devices
- ⏱️ Great time-killer/casual entertainment
- 💰 Reasonable monetization with minimal ads

**What reviewers complain about**

- 💰 Pay-to-win mechanics after initial hours
- 🐛 Frequent crashes and glitches
- 💾 Progress deletion on death or app closure
- 📺 Ad-related issues (black screens, fake X buttons)
- ⚠️ Game-breaking gem loss bug

**Reported bugs**

- Game crashes when typing feedback
- Progress deleted on death despite save system
- Black screen after watching ads for revival
- Gems consumed without unlocking base
- Player stuck in rocks with no escape

**Requested features**

- Character customization options
- Ability to dig upward
- More levels/content
- Map feature
- Confirmation dialog for restart button


### Space Tower Defense

[App page](https://appshunter.io/ios/app/space-tower-defense/id6780271383)

Defend your home planet in a futuristic space strategy game. Build and upgrade orbital satellites to survive waves of unique enemy spaceships. Adapt your tactics to overcome escalating challenges and boss encounters.

**Highlights:** 30 handcrafted waves, Multiple enemy types with unique abilities, Orbital satellite towers with upgrade progression, Boss enemies and escalating wave combinations, Tactical boosts for critical moments, No ads

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Game Unlock | $1.99 | one-time |


## Frequently asked questions

### Is Digger Machine free?

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

### Is Space Tower Defense free?

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

### Which has better reviews, Digger Machine or Space Tower Defense?

Space Tower Defense is rated higher. Digger Machine averages 4.5 out of 5 from 351 ratings, while Space Tower Defense averages 5.0 from 2 ratings.

### Do Digger Machine or Space Tower Defense have ads?

Digger Machine shows ads; Space Tower Defense does not.

### Which is updated more often, Digger Machine or Space Tower Defense?

Digger Machine ships an update every 3 months, and Space Tower Defense weekly. Most recently, Digger Machine was updated on October 24, 2026 and Space Tower Defense on October 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.*