# Chaos Zero Nightmare vs Endless Grades

The clearest difference is review sentiment: Chaos Zero Nightmare at 66% against Endless Grades's 27%. Chaos Zero Nightmare also leads on rating (4.9 vs 4.7) and chart position (#104 vs unranked). Endless Grades's advantage is iOS requirement (13.0 vs 15.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Chaos Zero Nightmare sells 45 one-off in-app purchases and Endless Grades sells 12 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Chaos Zero Nightmare holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 15K and 3.4K respectively. Written reviews point the same way: 66% of Chaos Zero Nightmare's written reviews are positive against 27% of Endless Grades's.

Chaos Zero Nightmare ships an update every 3 weeks, Endless Grades fortnightly. The most recent releases landed on September 26, 2026 and September 25, 2026 respectively.

## The numbers

| Metric | Chaos Zero Nightmare | Endless Grades |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (15K ratings)](https://appshunter.io/ios/app/chaos-zero-nightmare/id6502326151/reviews)** | [4.7 (3.4K ratings)](https://appshunter.io/ios/app/endless-grades-pixel-saga/id6737249949/reviews) |
| Number of ratings | **15K** | 3.4K |
| Positive reviews | **66.2% of reviews** | 26.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | **#104** | — |
| Size | 112 MB | 1.3 GB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [Smilegate, Inc.](https://appshunter.io/developer/588277915) | [LIGHTCORE GAMES LIMITED](https://appshunter.io/developer/1775590011) |

## What reviewers say

### Chaos Zero Nightmare

[App page](https://appshunter.io/ios/app/chaos-zero-nightmare/id6502326151)

**Currently charting:** #104 Top Grossing · Role Playing (US App Store)

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:** macOS Compatibility

**In-app purchases (45)**

| Purchase | Price | Billing |
| --- | --- | --- |
| New Captain Support Kit I | $0.99 | one-time |
| New Captain Support Kit II | $4.99 | one-time |
| Coronomicon Monthly Package | $4.99 | one-time |
| Half-Anniversary Ticket | $4.99 | one-time |
| Tactical Asset Monthly Supply | $4.99 | one-time |
| Agent Growth Kit | $4.99 | one-time |
| Aether Supply Kit | $4.99 | one-time |
| Gentle Ripples on the Night Sea | $7.99 | one-time |
| Crimson Yearning Within the Waves | $7.99 | one-time |
| Youth Under the Sun | $7.99 | one-time |
| Special Data | $9.99 | one-time |
| Partner Promotion Kit | $9.99 | one-time |
| Imp's Mischief I | $14.99 | one-time |
| Covert Exchange I | $14.99 | one-time |
| Scent of Summer I | $14.99 | one-time |
| Legacy of Will I | $14.99 | one-time |
| Galaxy Melody I | $14.99 | one-time |
| Emergency Rescue Operation II | $14.99 | one-time |
| Crystal ×980 | $14.99 | one-time |
| Regular Rescue Operation II | $14.99 | one-time |
| Golden Nebula Package I | $14.99 | one-time |
| SS Nightmare Security Upgrade I | $14.99 | one-time |
| Budding Seed of Karmic Fire I | $14.99 | one-time |
| Zero Data | $19.99 | one-time |
| Crystal ×1980 | $29.99 | one-time |
| Royal Level Up Package | $29.99 | one-time |
| Golden Nebula Package II | $29.99 | one-time |
| Sweet Confession Gift | $29.99 | one-time |
| Galactic Disaster 3rd Supply Kit II | $29.99 | one-time |
| Emergency Rescue Operation III | $29.99 | one-time |
| Imp's Mischief II | $49.99 | one-time |
| Covert Exchange II | $49.99 | one-time |
| Scent of Summer II | $49.99 | one-time |
| Legacy of Will II | $49.99 | one-time |
| Galaxy Melody Ⅱ | $49.99 | one-time |
| SS Nightmare Security Upgrade II | $49.99 | one-time |
| Silver Winter Star Package I | $49.99 | one-time |
| Galactic Disaster Support Kit I | $49.99 | one-time |
| Large Scale Rescue Operation I | $49.99 | one-time |
| Imp's Mischief III | $99.99 | one-time |
| Covert Exchange Ⅲ | $99.99 | one-time |
| Scent of Summer III | $99.99 | one-time |
| Galaxy Melody Ⅲ | $99.99 | one-time |
| Crystal ×6480 | $99.99 | one-time |
| Golden Nebula Package Ⅳ | $99.99 | one-time |

**What reviewers like**

- 🚀 Amazing, Incredible, Gorgeous, Uniquely Compelling
- 👍 Fun, Refreshing, Engaging Gameplay
- 💎 Solid Story, Animation, and Voice Acting
- 🎨 Beautiful Character Designs and Visuals

**What reviewers complain about**

- 🐛 Connection Issues, Login Problems, and Crashes
- 💰 Gacha Rates are Low, Grindy Progression
- ⏱️ Lengthy, Tedious, and Time-Consuming Runs

**Reported bugs**

- Banned IP Issues
- Missing Files and Inability to Load

**Requested features**

- English Dubbed Version
- More Male Characters
- Flexible Character Setup


### Endless Grades

[App page](https://appshunter.io/ios/app/endless-grades-pixel-saga/id6737249949)

Immerse yourself in a retro pixel RPG with a modern growth system and epic soundtracks. Collect hundreds of heroes, forge equipment, and enjoy strategic progression without tedious grinding. Compete in PvP and guild battles for generous rewards.

**Highlights:** Premium audiovisual experience with legendary composers, Retro pixel art with modern growth system, Hundreds of heroes to command, Deep strategy with Pets, Spirits, and Felispirits, No grinding required, shared hero levels, Generous rewards and idle accumulation, PvP battles and guild challenges

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

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| STANDARD PACK_1 | $0.99 | one-time |
| STANDARD PACK_2 | $1.99 | one-time |
| STANDARD PACK_3 | $2.99 | one-time |
| STANDARD PACK_4 | $4.99 | one-time |
| STANDARD PACK_5 | $6.99 | one-time |
| STANDARD PACK_6 | $9.99 | one-time |
| STANDARD PACK_7 | $14.99 | one-time |
| STANDARD PACK_8 | $19.99 | one-time |
| STANDARD PACK_9 | $24.99 | one-time |
| STANDARD PACK_10 | $29.99 | one-time |
| STANDARD PACK_11 | $49.99 | one-time |
| STANDARD PACK_13 | $99.99 | one-time |

**What reviewers like**

- ⭐ Nice game
- ⭐ High SSR drop rate
- ⭐ Appealing characters

**What reviewers complain about**

- 🚫 Misleading ads
- 🚫 Auto-idle gameplay
- 🚫 Pay-to-progress
- 🚫 Tons of ads
- 🚫 Pay-to-win

**Reported bugs**

- Can't play due to network issues

**Requested features**

- Disable dialog auto-next
- Allow tap-to-proceed


## Frequently asked questions

### Is Chaos Zero Nightmare free?

Chaos Zero Nightmare is free to download, with in-app purchases available.

### Is Endless Grades free?

Endless Grades is free to download, with in-app purchases available.

### Which has better reviews, Chaos Zero Nightmare or Endless Grades?

Chaos Zero Nightmare is rated higher. Chaos Zero Nightmare averages 4.9 out of 5 from 15K ratings, while Endless Grades averages 4.7 from 3.4K ratings.

### Do Chaos Zero Nightmare or Endless Grades have ads?

Both Chaos Zero Nightmare and Endless Grades show ads.

### Which is updated more often, Chaos Zero Nightmare or Endless Grades?

Chaos Zero Nightmare ships an update every 3 weeks, and Endless Grades fortnightly. Most recently, Chaos Zero Nightmare was updated on September 26, 2026 and Endless Grades on September 25, 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.*