# Pendulum Sweeper vs Rail Defence

The clearest difference is rating: Pendulum Sweeper at 4.5 against Rail Defence's 4.1. Pendulum Sweeper also leads on review sentiment (32% vs 2%). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Pendulum Sweeper sells 14 one-off in-app purchases and Rail Defence sells 18 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Pendulum Sweeper holds the better App Store score, 4.5 against 4.1. Both are backed by a comparable volume of ratings — 405 and 894 respectively. Written reviews point the same way: 32% of Pendulum Sweeper's written reviews are positive against 2% of Rail Defence's.

Pendulum Sweeper ships an update weekly, Rail Defence fortnightly. The most recent releases landed on September 24, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Pendulum Sweeper | Rail Defence |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (405 ratings)](https://appshunter.io/ios/app/pendulum-sweeper/id6739248354/reviews)** | [4.1 (894 ratings)](https://appshunter.io/ios/app/rail-defence/id6739333810/reviews) |
| Number of ratings | 405 | **894** |
| Positive reviews | **32.2% of reviews** | 1.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 268 MB | 156 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [KAYAC Inc.](https://appshunter.io/developer/315952203) | [Upperpik Oyun Yazilim ve Pazarlama Ticaret Anonim Sirketi](https://appshunter.io/developer/1225221447) |

## What reviewers say

### Pendulum Sweeper

[App page](https://appshunter.io/ios/app/pendulum-sweeper/id6739248354)

Control a double pendulum to defeat enemies climbing a hill. Master its physics to strike foes with precision and unlock upgrades to enhance your pendulum's power. This rogue-lite experience offers engaging gameplay and strategic choices for endless replayability.

**Highlights:** Double pendulum physics, Defeat climbing enemies, Unlockable upgrades, Strategic choices, Rogue-lite gameplay

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

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Crystal 60 | $0.99 | one-time |
| Fortune Chest | $1.99 | one-time |
| Starter Pack | $3.99 | one-time |
| Crystal 310 | $4.99 | one-time |
| No Ads | $4.99 | one-time |
| Gold Pass | $4.99 | one-time |
| Starter Pack (Deal) | $5.99 | one-time |
| Crystal 640 | $9.99 | one-time |
| Starter Pack (Super Deal) | $9.99 | one-time |
| Starter Pack All | $14.99 | one-time |
| Crystal 1330 | $19.99 | one-time |
| Black Pass | $19.99 | one-time |
| Crystal 3480 | $49.99 | one-time |
| Crystal 7300 | $99.99 | one-time |

**What reviewers like**

- 👍 Fun game
- 👍 Good theme and motivation
- 👍 Enjoyable gameplay

**What reviewers complain about**

- 🐛 Shockwave bug
- 🔕 Lack of settings to turn off sound
- 💰 Too many ads
- 🤕 Difficulty increases too much at higher levels

**Reported bugs**

- Shockwave ability stops working
- Slimes launching smaller ones on defeat

**Requested features**

- Add info tab for enemy details
- Increase damage of abilities other than pendulum


### 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 (18)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Cash kickstart pack | $1.99 | one-time |
| 10 Tickets | $1.99 | one-time |
| Manager | $2.99 | one-time |
| Money Fountain Pack | $2.99 | one-time |
| Engineer | $2.99 | one-time |
| 20 Tickets | $2.99 | one-time |
| Big Deal Pack | $3.99 | one-time |
| Financier | $3.99 | one-time |
| Royal Treasury Pack | $4.99 | 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 |
| Big Vault Pack | $8.99 | one-time |
| Ultra Bundle | $10.99 | one-time |
| Big Chest Treasure | $11.99 | 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 Pendulum Sweeper free?

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

### Is Rail Defence free?

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

### Which has better reviews, Pendulum Sweeper or Rail Defence?

Pendulum Sweeper is rated higher. Pendulum Sweeper averages 4.5 out of 5 from 405 ratings, while Rail Defence averages 4.1 from 894 ratings.

### Do Pendulum Sweeper or Rail Defence have ads?

Both Pendulum Sweeper and Rail Defence show ads.

### Which is updated more often, Pendulum Sweeper or Rail Defence?

Pendulum Sweeper ships an update weekly, and Rail Defence fortnightly. Most recently, Pendulum Sweeper was updated on September 24, 2026 and Rail Defence on September 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.*