# Pump Pistons vs Rail Defence

The clearest difference is in-app purchases: Pump Pistons at none against Rail Defence's 10. Pump Pistons also leads on iOS requirement (11.0 vs 13.0). On price, ads and device support there is nothing between them.

Both are free to download. Rail Defence sells 10 one-off in-app purchases. Pump Pistons asks for nothing beyond the download.

## The numbers

| Metric | Pump Pistons | Rail Defence |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.1 (1.1K ratings)](https://appshunter.io/ios/app/rail-defence/id6739333810/reviews)** |
| Number of ratings | — | **1.1K** |
| Positive reviews | — | 1.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | — | Fortnightly |
| Monetization | — | Free with in-app purchases |
| Size | 90 MB | 156 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Virtual Projects Oyun Yazilim Ve Teknoloji](https://appshunter.io/developer/1327820445) | [Upperpik Oyun Yazilim ve Pazarlama Ticaret Anonim Sirketi](https://appshunter.io/developer/1225221447) |

## What reviewers say

### Pump Pistons

[App page](https://appshunter.io/ios/app/pump-pistons/id1667301798)

**Features:** macOS Compatibility

**In-app purchases:** none


### Rail Defence

[App page](https://appshunter.io/ios/app/rail-defence/id6739333810)

Defend your castle from waves of enemies by strategically placing and upgrading weapons on a circular railway. Utilize special powers and enhanced armaments to repel increasingly formidable foes and protect your stronghold.

**Highlights:** Circular railway defense, Acquire new weapons, Upgrade weapons, Strengthen defenses, Special powers

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Manager | $2.99 | one-time |
| Money Fountain Pack | $2.99 | one-time |
| Engineer | $2.99 | one-time |
| 50 Tickets | $4.99 | one-time |
| No Ads | $4.99 | one-time |
| Bundle | $5.99 | one-time |
| Treasury Trove Pack | $5.99 | one-time |
| 30 Tickets and No Ads | $5.99 | one-time |
| Mega Bundle | $7.99 | one-time |
| Ultra Bundle | $10.99 | one-time |

**What reviewers like**

- 🚀 Hack

**What reviewers complain about**

- 🐛 Glitches
- 💸 Obscene amount of Ads
- 💸 Advertisement Simulator
- 💸 Ads Ads & more Ads
- 💸 Ads

**Reported bugs**

- The bomb does not work after a few seconds
- Randomly the weapons won't work
- The crossbow stops working after a while

**Requested features**

- More levels
- Different zombies
- More upgrades


## Frequently asked questions

### Is Pump Pistons free?

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

### Is Rail Defence free?

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

### Do Pump Pistons or Rail Defence have ads?

Both Pump Pistons and Rail Defence show ads.

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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.*