Comparison

MONGIL vs Chaos Zero Nightmare

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

Head to head
About

MONGIL

Embark on an enchanting adventure in a world filled with diverse creatures. Collect and train adorable monsters, then engage in exhilarating tag-team battles using their unique skills. Explore a vast world and uncover your destiny at your own pace.

Highlights
  • Monster collecting and taming
  • Triple tag-team action battles
  • Real-time character switching
  • Unique monster abilities
  • Story-driven exploration
  • Play at your own pace
Features
Currently charting
Read full description

Tame the Unknown, Dive into Wonder! A dazzling monster-taming Action RPG! MONGIL: STAR DIVE! A world for monsters, you, and me! Collect adorable monsters and complete your Monster Codex! Find and tame them all, and claim victory in battle using each monster's unique abilities! Quick and easy triple tag team action! Everyone can enjoy MONGIL's intuitive and exhilarating tag team battles! Switch characters in real time as the battle evolves to unleash powerful Tag Skills! Mix and match a variety of characters to build a party bursting with personality. A journey of discovery! Join Cloud, Verna, and their cute kitty companion Nyanners on an adventure in a world home to humans, monsters, elves, beastkin, and more! Play on your terms! Advance the story at your own pace. No need to compete with others or rush to the finish line! Take your time. There's a big world full of unique characters waiting for you to explore! Where will this adventure lead? Meet the mysterious creature "Nyanners" along with a whole cast of captivating characters and reveal your destiny! DIVE into a world of wonder! Make 2026 your year in MONGIL: STAR DIVE! Find the latest news and details on our official community pages! Official YouTube: https://www.youtube.com/@Stardive_EN Official X (Formerly Twitter): https://x.com/Stardive_EN Official Instagram: https://www.instagram.com/stardive_en/ Official Discord: https://discord.com/invite/stardive ※ Additional charges may apply when purchasing paid items. - Provider: Netmarble Corp. - Terms of Use and Availability Period: As stated separately in-game (If no period is specified, the item is considered usable until the end of service.) - Pricing and Payment Methods: As disclosed separately per product. (For purchases made in foreign currencies, the actual charge may differ due to exchange rates and fees.) - Item Delivery Method: Instantly delivered to the purchasing account (character) in-game. - Minimum Specifications: iOS 15.0 or higher [Access Permission Notice] ▶ Required Access Permissions: None ▶ Optional Access Permissions - Notifications: Used to receive push notifications. - Camera: Used for AR content, registering content, or contacting customer support. - Photos: Used when downloading web content. ※ You can use the service even if you do not agree to access permissions. ▶How to Withdraw Permissions - Go to Settings > Select App > Revoke access permissions. ※ This app offers in-app purchases. You can disable this feature by adjusting your device’s settings. ※ By downloading this game, you are agreeing to our Terms of Service and Privacy Policy. - Terms of Service: https://help.netmarble.com/terms/terms_of_service_en - Privacy Policy: https://help.netmarble.com/en/terms/privacy_policy_en "The ""Morning Star's Pledge"" is shown as a monthly subscription. After purchase, a monthly fee of $6.99 (or the equivalent amount in your local currency) will be charged to your Apple ID. The subscription fee will be automatically charged on a monthly basis from the date of your first payment until you cancel your subscription, and upon renewal of the monthly subscription, the fee will be charged to your Apple ID. Users can cancel their subscription through their Apple account settings. If the subscription is not canceled at least 24 hours before the next billing date, it will be automatically renewed. (※ Subscription cancellations are subject to the mobile store's cancellation policy.)"

About

Chaos Zero Nightmare

Embark on a dark fantasy RPG adventure where your choices shape the narrative and gameplay. Battle cosmic horrors with unique cards and evolving strategies. Experience a visually stunning world with fully voiced characters.

Highlights
  • Dark fantasy narrative
  • Choice-driven RPG mechanics
  • Unique card-based combat
  • Evolving gameplay with branching choices
  • Gorgeous 2D illustrations
  • Fully voiced characters
Features
Read full description

Zero Out All Despair Smilegate's new title, "Chaos Zero Nightmare," is now open! Board the SS Nightmare now! Chaos. A cosmic disaster that struck without warning. "Chaos," a black fog that consumes planets, distorting their environment and lifeforms. The beginning, or the end, of every story. [The Blue Pot], a Chaos located on Earth, the birthplace of humanity. There have been reports of unidentifiable creatures being discovered. And for some reason, a strange phenomenon that couldn't—no, shouldn't—be happening to the Captain is occurring. ▶ A World Drenched in Darkness, A Story Etched in Memory Dive into a vast and haunting dark fantasy narrative! Crushing stress, collapsing agents... and yet, the mission continues. Break through the encroaching crisis and immerse yourself in a brutally vivid dark fantasy experience. ▶ A New Kind of RPG, Rewritten with Every Choice Aim through the agents' eyes and feel the weight of combat at your fingertips! Unique cards, branching choices, and evolving "Save Data" shaped by your journey through the Chaos. Every run is unique. Build your own strategy and master the ever-changing battlefield. ▶ Characters That Dazzle the Eyes and Steal the Heart Gorgeous 2D illustrations and striking animations make every moment a visual delight! Fully voiced by top-tier voice actors, each scene draws you deeper into the story. Join a cast of unforgettable characters in battle and beyond, and cherish every moment of your journey together! ※ How to Manage Permissions After allowing access to permissions, you can reset or turn off them as follows. - Device Settings > Privacy & Security > Select the App > Allow or Don't Allow Permissions ⁜⁜Stay up to date with the latest news on Chaos Zero Nightmare! ⁜⁜ Brand Page: https://chaoszeronightmare.onstove.com/ Official Community: https://page.onstove.com/chaoszeronightmare/en Official YouTube: https://www.youtube.com/@ChaosZeroNightmare_EN Official X: https://x.com/CZN_Official_EN

Screenshots

MONGIL4 screens
Chaos Zero Nightmare4 screens

Verdict

The call

The clearest difference is ads: MONGIL at none against Chaos Zero Nightmare's shown. Chaos Zero Nightmare's advantage is chart position (#10 vs #177) and ratings volume (15K vs 4K). On price, rating, review sentiment and update cadence 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. MONGIL sells 21 in-app purchases, starting at $6.99 per month and Chaos Zero Nightmare sells 51 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for MONGIL against 4.9 for Chaos Zero Nightmare. Both are backed by a comparable volume of ratings — 4K and 15K respectively. Written reviews split almost evenly too, at 67% and 66% positive.

UpkeepUpdate frequency

MONGIL ships an update monthly, Chaos Zero Nightmare every 3 weeks. Both last shipped on October 23, 2026.

Scorecard3 real differences · 8 level
MONGIL versus Chaos Zero Nightmare: the parameters behind the verdict, then further details
ParameterMONGILChaos Zero Nightmare
PriceFreeFree
Rating4.8 (4K ratings)4.9 (15K ratings) — better
Positive reviews66.7% of reviews — better66.3% of reviews
Number of ratings4K15K — better
Update frequencyMonthlyEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
Best chart rank#177#10 — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.015.0
Further details — not scored
Size502 MB113 MB
Age rating+1212+
DeveloperNetmarble CorporationSmilegate, Inc.

Customer experience

MONGIL

All ratings3,935 ratings
Positive95.8%
Neutral1.4%
Negative2.8%
Written reviews312 reviews
Positive66.7%
Neutral8.7%
Negative24.7%

Chaos Zero Nightmare

All ratings15,219 ratings
Positive97.2%
Neutral0.7%
Negative2.0%
Written reviews969 reviews
Positive66.3%
Neutral8.2%
Negative25.6%

Bugs and requests

MONGIL

Not enough reviews yet to summarise bugs or requests.

Chaos Zero Nightmare

Reported bugs

2 issues
  • Banned IP Issues
  • Missing Files and Inability to Load

Requested features

3 requests
  • English Dubbed Version
  • More Male Characters
  • Flexible Character Setup

In-app purchases

21 purchases

MONGIL

Subscriptions1
  • Morning Star's Pledge$6.991 Month
One-time20
  • Special offer1$0.99
  • Special offer3$2.99
  • Special offer4$3.99
Show 17 more
  • Special offer7$6.99
  • Special offer8$7.99
  • Special offer10$9.99
  • Special offer13$12.99
  • Special offer15$14.99
  • Special offer17$16.99
  • Special offer20$19.99
  • Special offer22$21.99
  • Special offer24$23.99
  • Special offer25$24.99
  • Special offer29$28.99
  • Special offer30$29.99
  • Special offer36$35.99
  • Special offer40$39.99
  • Special offer42$41.99
  • Special offer50$49.99
  • Special offer56$79.99
51 purchases

Chaos Zero Nightmare

One-time51
  • New Captain Support Kit I$0.99
  • New Captain Support Kit II$4.99
  • Coronomicon Monthly Package$4.99
Show 48 more
  • Half-Anniversary Ticket$4.99
  • Tactical Asset Monthly Supply$4.99
  • Agent Growth Kit$4.99
  • Aether Supply Kit$4.99
  • Angel on the White Sands$7.99
  • Gentle Ripples on the Night Sea$7.99
  • Crimson Yearning Within the Waves$7.99
  • Youth Under the Sun$7.99
  • Special Data7 variants$9.99
  • Partner Promotion Kit$9.99
  • Nightmare Carnival Chest I$14.99
  • Imp's Mischief I$14.99
  • Covert Exchange I$14.99
  • Scent of Summer I$14.99
  • Legacy of Will I$14.99
  • Galaxy Melody I$14.99
  • Emergency Rescue Operation II$14.99
  • Crystal ×980$14.99
  • Regular Rescue Operation II$14.99
  • Golden Nebula Package I$14.99
  • SS Nightmare Security Upgrade I$14.99
  • Budding Seed of Karmic Fire I$14.99
  • Zero Data7 variants$19.99
  • Golden Glow Beneath the Night Sky$29.99
  • Crystal ×1980$29.99
  • Royal Level Up Package$29.99
  • Golden Nebula Package II$29.99
  • Sweet Confession Gift$29.99
  • Galactic Disaster 3rd Supply Kit II$29.99
  • Emergency Rescue Operation III$29.99
  • Crystal ×3280$49.99
  • Nightmare Carnival Chest II$49.99
  • Imp's Mischief II$49.99
  • Covert Exchange II$49.99
  • Scent of Summer II$49.99
  • Legacy of Will II$49.99
  • Galaxy Melody Ⅱ$49.99
  • SS Nightmare Security Upgrade II$49.99
  • Silver Winter Star Package I$49.99
  • Galactic Disaster Support Kit I$49.99
  • Large Scale Rescue Operation I$49.99
  • Nightmare Carnival Chest III$99.99
  • Imp's Mischief III$99.99
  • Covert Exchange Ⅲ$99.99
  • Scent of Summer III$99.99
  • Galaxy Melody Ⅲ$99.99
  • Crystal ×6480$99.99
  • Golden Nebula Package Ⅳ$99.99

Questions

Is MONGIL free?
MONGIL is free to download, with in-app purchases available.
Is Chaos Zero Nightmare free?
Chaos Zero Nightmare is free to download, with in-app purchases available.
Which has better reviews, MONGIL or Chaos Zero Nightmare?
Chaos Zero Nightmare is rated higher. MONGIL averages 4.8 out of 5 from 4K ratings, while Chaos Zero Nightmare averages 4.9 from 15K ratings.
Do MONGIL or Chaos Zero Nightmare have ads?
Chaos Zero Nightmare shows ads; MONGIL does not.
Which is updated more often, MONGIL or Chaos Zero Nightmare?
MONGIL ships an update monthly, and Chaos Zero Nightmare every 3 weeks. Most recently, MONGIL was updated on October 23, 2026 and Chaos Zero Nightmare on October 23, 2026.
Which is more popular, MONGIL or Chaos Zero Nightmare?
MONGIL currently peaks at #177 in the App Store charts, and Chaos Zero Nightmare at #10. Chart position reflects recent download velocity rather than total install base.

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