Comparison

Immortal Slayer Idle vs Devil Slayer

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

Head to head
About

Immortal Slayer Idle

An AFK RPG where you raise a survivor and battle vampires with a unique gun blade. Grow your character through various systems and defeat powerful enemies in diverse dungeons.

Highlights
  • Idle RPG progression
  • Gun blade combat
  • Character growth systems
  • Strategic skill usage
  • Diverse dungeons and enemies
Features
Read full description

An AFK RPG enjoyed through flashy hack-and-slash action with dazzling gun blade moves! Raise “Van Helen,” survivor of the Van Helsing clan, and fight against vampires and their kin! Defeat Lilith, the Queen of Nightmares, and save this world! [Game Features] ◈ Idle RPG where you can grow quickly and easily, just by being idle! - Level up rapidly with the growth system that allows you to become stronger just by breathing, without boundaries between online and offline ◈ Exhilarating action using a Gun Blade, a weapon that combines the best of a gun and a blade! - Wipe out the enemies with Gun Blades combined with legendary weapons like Pistol and Excalibur! - Feel the intense and exhilarating action of both weapon types, Blade and Pistol! ◈ Growth system where everything drives your growth! - Everything from Servants (Pets), to Holy Relics, Promotions, Skins, and more are all connected to the character's growth! ◈ Strategic action using various skills! - Skill effect that becomes fancier as you grow! ◈ Various dungeons and vampire kin to beat! - Break through the dungeon by defeating vampire kin like the royal vampire “Guima,” Slime, Zombie, Werewolf, Witch, Reaper, and more!

About

Devil Slayer

Engage in spectacular hack and slash combat in this idle action RPG. Grow your character with idle rewards and offline earnings. Conquer bosses and acquire powerful equipment through diverse content and daily login bonuses.

Highlights
  • Spectacular action battles
  • Hack and slash combat
  • Idle character growth
  • Offline rewards
  • Diverse unlockable content
  • Giant boss battles
  • Acquire powerful equipment
Features
Read full description

● Spectacular action! Experience eye-catching battles. - A next-level idle RPG with action - Hack and slash combat against swarming enemies - Grow your dazzling slayer day by day! ● Endless growth! Experience unceasing growth just by being idle. - Grow rapidly just with idle rewards! - Experience the fun of the constantly growing Devil Slayer every day. - Experience the magic of explosive growth just by receiving offline rewards. ● Diverse content! - Challenge the limits of your character and prove your strength! - Increase your growth rate by enjoying a variety of unlockable content! - Log in daily and get tons of rewards! Acquire the most powerful equipment in the universe! - Conquer mighty giant bosses and earn attractive rewards! ---------------------------------------------------------- Help : dudekf556@gmail.com

Screenshots

Immortal Slayer Idle4 screens
Devil Slayer4 screens

Verdict

The call

The clearest difference is rating: Devil Slayer at 4.8 against Immortal Slayer Idle's 2.0. Devil Slayer also leads on review sentiment (71% vs 33%) and ratings volume (47 vs 3). Immortal Slayer Idle's advantage is update cadence (weekly vs every 3 weeks). On price, ads, in-app purchases and monetization model 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. Immortal Slayer Idle sells 10 one-off in-app purchases and Devil Slayer sells 20 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Devil Slayer holds the better App Store score, 4.8 against 2.0. That said, the two scores are not equally well evidenced: Devil Slayer has 47 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 33% of Immortal Slayer Idle's written reviews are positive against 71% of Devil Slayer's.

UpkeepUpdate frequency

Immortal Slayer Idle ships an update weekly, Devil Slayer every 3 weeks. The most recent releases landed on October 30, 2026 and October 27, 2026 respectively.

Scorecard4 real differences · 6 level
Immortal Slayer Idle versus Devil Slayer: the parameters behind the verdict, then further details
ParameterImmortal Slayer IdleDevil Slayer
PriceFreeFree
Rating2.0 (3 ratings)4.8 (47 ratings) — better
Positive reviews33.3% of reviews71.4% of reviews — better
Number of ratings347 — better
Update frequencyWeekly — betterEvery 3 weeks
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS14.013.0 — better
Further details — not scored
Size607 MB653 MB
Age rating12+12+
DeveloperDreamplay Games Inc.Youngdal Kim

Customer experience

Immortal Slayer Idle

All ratings3 ratings
Positive33.3%
Neutral0.0%
Negative66.7%
Written reviews3 reviews
Positive33.3%
Neutral0.0%
Negative66.7%

Devil Slayer

All ratings47 ratings
Positive95.7%
Neutral0.0%
Negative4.3%
Written reviews21 reviews
Positive71.4%
Neutral9.5%
Negative19.0%

In-app purchases

10 purchases

Immortal Slayer Idle

One-time10
  • Ad buff removal package(30day)$7.99
  • Level Pass4$21.99
  • Stage Pass4$21.99
Show 7 more
  • ATK Pass4$21.99
  • Weekly 6000x Package 2$34.99
  • Stage Pass5$34.99
  • Level Pass5$34.99
  • ATK Pass5$34.99
  • Stage Pass6$49.99
  • ATK Pass6$49.99
20 purchases

Devil Slayer

One-time20
  • Guildjoin Unlock$0.99
  • Patiencebox 01$0.99
  • Start Package 01$1.99
Show 17 more
  • Start Package 02$3.99
  • Remove Ads$4.99
  • Start Package PLUS$5.99
  • WeeklyGrowth01$5.99
  • Reset Pass$6.99
  • hopepackage$6.99
  • RotationPackage01$8.99
  • Devilbox02$9.99
  • Seeds of Happiness$9.99
  • WeeklyGrowth02$12.99
  • Bosspack01$12.99
  • AchievePackage01$14.99
  • Costume_Body 03$14.99
  • Costume_Body 02$14.99
  • RotationPackage02$19.99
  • WeeklyGrowth03$29.99
  • RotationPackage03$39.99

Questions

Is Immortal Slayer Idle free?
Immortal Slayer Idle is free to download, with in-app purchases available.
Is Devil Slayer free?
Devil Slayer is free to download, with in-app purchases available.
Which has better reviews, Immortal Slayer Idle or Devil Slayer?
Devil Slayer is rated higher. Immortal Slayer Idle averages 2.0 out of 5 from 3 ratings, while Devil Slayer averages 4.8 from 47 ratings.
Do Immortal Slayer Idle or Devil Slayer have ads?
Both Immortal Slayer Idle and Devil Slayer show ads.
Which is updated more often, Immortal Slayer Idle or Devil Slayer?
Immortal Slayer Idle ships an update weekly, and Devil Slayer every 3 weeks. Most recently, Immortal Slayer Idle was updated on October 30, 2026 and Devil Slayer on October 27, 2026.

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