Comparison

Pendulum Sweeper vs Rail Defence

Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.

Head to head
About

Pendulum Sweeper

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
Read full description

Swing your pendulum to stop the relentless enemies climbing up the hill! The double pendulum's dynamic and unpredictable movement is not only captivating but also the key to your success. Master its unique physics to strike down foes with precision and flair. As you progress, you'll unlock powerful upgrades that enhance your pendulum's strength and efficiency, allowing you to tackle even tougher challenges. Choose wisely to maximize your effectiveness! If you love rogue-lite games, this experience will keep you hooked with its engaging gameplay and strategic choices. Dive into the action, experiment with different upgrades, and see how far you can go in this thrilling adventure!

About

Rail Defence

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
Read full description

Defend your castle on a circular railway. Acquire new weapons as you gain experience. Strengthen your weapons and keep increasingly larger enemies away from your castle. Strengthen your defences by using special powers and weapons.

Screenshots

Pendulum Sweeper4 screens
Rail Defence4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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

Scorecard2 real differences · 8 level
Pendulum Sweeper versus Rail Defence: the parameters behind the verdict, then further details
ParameterPendulum SweeperRail Defence
PriceFreeFree
Rating4.5 (405 ratings) — better4.1 (894 ratings)
Positive reviews32.2% of reviews — better1.7% of reviews
Number of ratings405894 — better
Update frequencyWeekly — betterFortnightly
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.013.0
Further details — not scored
Size268 MB156 MB
Age rating17+4+
DeveloperKAYAC Inc.Upperpik Oyun Yazilim ve Pazarlama Ticaret Anonim Sirketi

Customer experience

Pendulum Sweeper

All ratings405 ratings
Positive84.9%
Neutral6.4%
Negative8.6%
Written reviews59 reviews
Positive32.2%
Neutral28.8%
Negative39.0%

Rail Defence

All ratings894 ratings
Positive74.3%
Neutral5.0%
Negative20.7%
Written reviews115 reviews
Positive1.7%
Neutral6.1%
Negative92.2%

User reviews

Pendulum Sweeper

From 405 App Store ratings

What we love

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

Room to improve

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

Rail Defence

From 894 App Store ratings

What we love

  • 🚀 Hack

Room to improve

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

Bugs and requests

Pendulum Sweeper

Reported bugs

2 issues
  • Shockwave ability stops working
  • Slimes launching smaller ones on defeat

Requested features

2 requests
  • Add info tab for enemy details
  • Increase damage of abilities other than pendulum

Rail Defence

Reported bugs

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

Requested features

3 requests
  • More levels
  • Different zombies
  • More upgrades

In-app purchases

14 purchases

Pendulum Sweeper

One-time14
  • Crystal 602 variants$0.99
  • Fortune Chest2 variants$1.99
  • Starter Pack$3.99
Show 11 more
  • Crystal 310$4.99
  • No Ads$4.99
  • Gold Pass$4.99
  • Starter Pack (Deal)2 variants$5.99
  • Crystal 640$9.99
  • Starter Pack (Super Deal)2 variants$9.99
  • Starter Pack All2 variants$14.99
  • Crystal 1330$19.99
  • Black Pass$19.99
  • Crystal 3480$49.99
  • Crystal 7300$99.99
18 purchases

Rail Defence

One-time18
  • Cash kickstart pack$1.99
  • 10 Tickets$1.99
  • Manager$2.99
Show 15 more
  • Money Fountain Pack$2.99
  • Engineer$2.99
  • 20 Tickets$2.99
  • Big Deal Pack$3.99
  • Financier$3.99
  • Royal Treasury Pack$4.99
  • 50 Tickets$4.99
  • No Ads$4.99
  • Bundle$5.99
  • Treasury Trove Pack$5.99
  • 30 Tickets and No Ads$5.99
  • Mega Bundle$7.99
  • Big Vault Pack$8.99
  • Ultra Bundle$10.99
  • Big Chest Treasure$11.99

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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