# SUN vs Amaterasu Iron Vow

The clearest difference is rating: SUN at 4.9 against Amaterasu Iron Vow's 2.5. Amaterasu Iron Vow's advantage is iOS requirement (13.0 vs 15.6). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. SUN sells 10 one-off in-app purchases and Amaterasu Iron Vow sells 18 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

SUN holds the better App Store score, 4.9 against 2.5. Both are backed by a comparable volume of ratings — 18 and 26 respectively.

SUN ships an update weekly, Amaterasu Iron Vow fortnightly. Both last shipped on October 25, 2026.

## The numbers

| Metric | SUN | Amaterasu Iron Vow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (18 ratings)](https://appshunter.io/ios/app/sun-origin/id6748901948/reviews)** | [2.5 (26 ratings)](https://appshunter.io/ios/app/amaterasu-iron-vow/id6795901444/reviews) |
| Number of ratings | 18 | **26** |
| Positive reviews | — | 42.9% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Fortnightly |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 1013 MB | 684 MB |
| Requires iOS | 15.6 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Chuang Games Entertainment Limited](https://appshunter.io/developer/1827899469) | [Bijie Congming Network Technology Co., Ltd.](https://appshunter.io/developer/6795901446) |

## What reviewers say

### SUN

[App page](https://appshunter.io/ios/app/sun-origin/id6748901948)

Embark on an epic MMORPG adventure in a reborn world, featuring four distinct classes, challenging dungeons, and large-scale guild warfare. Enjoy structured seasonal progression and efficient growth with AFK systems.

**Highlights:** Four iconic classes, Dungeon battles and legendary gear, Guild rally and large-scale warfare, Season system with endless progression, Smart AFK systems for efficient growth, Exploration of unique maps and secrets

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| $4.99Giftpack | $4.99 | one-time |
| $9.99Giftpack | $9.99 | one-time |
| $14.99Giftpack | $14.99 | one-time |
| $19.99Giftpack | $19.99 | one-time |
| $22.99Giftpack | $22.99 | one-time |
| $25.99Giftpack | $25.99 | one-time |
| $29.99Giftpack | $29.99 | one-time |
| $39.99Giftpack | $39.99 | one-time |
| $49.99Giftpack | $49.99 | one-time |
| $99.99Giftpack | $99.99 | one-time |


### Amaterasu Iron Vow

[App page](https://appshunter.io/ios/app/amaterasu-iron-vow/id6795901444)

An idle card game featuring auto-battles and offline rewards for effortless progression. Build your hero lineup, climb seasonal ladders, and engage in strategic combat with precise timing.

**Highlights:** Full auto-battle, Offline rewards, Hero summon tickets, Signature lineup building, Seasonal Ladder climbing, Timed combat mechanics

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

**In-app purchases (18)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Gift Pack 01 | $0.99 | one-time |
| Gift Pack 02 | $1.99 | one-time |
| Gift Pack 05 | $4.99 | one-time |
| Gift Pack 19 | $5.99 | one-time |
| Gift Pack 06 | $7.99 | one-time |
| Gift Pack 20 | $8.99 | one-time |
| Gift Pack 07 | $9.99 | one-time |
| Gift Pack 21 | $11.99 | one-time |
| Gift Pack 09 | $14.99 | one-time |
| Gift Pack 22 | $17.99 | one-time |
| Gift Pack 10 | $19.99 | one-time |
| Gift Pack 23 | $24.99 | one-time |
| Gift Pack 11 | $29.99 | one-time |
| Gift Pack 14 | $49.99 | one-time |
| Gift Pack 24 | $54.99 | one-time |
| Gift Pack 15 | $64.99 | one-time |
| Gift Pack 16 | $69.99 | one-time |
| Gift Pack 18 | $99.99 | one-time |


## Frequently asked questions

### Is SUN free?

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

### Is Amaterasu Iron Vow free?

Amaterasu Iron Vow is free to download, with in-app purchases available.

### Which has better reviews, SUN or Amaterasu Iron Vow?

SUN is rated higher. SUN averages 4.9 out of 5 from 18 ratings, while Amaterasu Iron Vow averages 2.5 from 26 ratings.

### Do SUN or Amaterasu Iron Vow have ads?

Neither SUN nor Amaterasu Iron Vow shows ads.

### Which is updated more often, SUN or Amaterasu Iron Vow?

SUN ships an update weekly, and Amaterasu Iron Vow fortnightly. Most recently, SUN was updated on October 25, 2026 and Amaterasu Iron Vow on October 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.*