# 聖遺物DB vs Chemical structure Karuta

The clearest difference is review sentiment: 聖遺物DB at 62% against Chemical structure Karuta's 38%. 聖遺物DB also leads on update cadence (every 6 weeks vs every 4 months) and iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

聖遺物DB ships an update every 6 weeks, Chemical structure Karuta every 4 months. The most recent releases landed on July 7, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | 聖遺物DB | Chemical structure Karuta |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **61.5% of reviews** | 37.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 4 months |
| Monetization | Free | Free |
| Size | 86 MB | 131 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Tomato Soft](https://appshunter.io/developer/1552391457) | [Beta Computing Co., Ltd.](https://appshunter.io/developer/1456718333) |

## What reviewers say

### 聖遺物DB

[App page](https://appshunter.io/ios/app/db/id1555061079)

Manage your Genshin Impact artifacts and equipment sets with this app. Register your artifacts, create custom sets for different game modes, and share your character builds with friends. Keep your valuable gear organized and easily accessible.

**Highlights:** Artifact registration and management, Create custom equipment sets, Organize sets for different game modes, Share character builds as images, Multi-device synchronization via login, Backup artifact data

**Features:** macOS Compatibility

**In-app purchases:** none


### Chemical structure Karuta

[App page](https://appshunter.io/ios/app/chemical-structure-karuta/id6504676483)

Learn chemical structures and compounds through a fun, card-based game. Features audio narration, explanatory videos, and adjustable CPU difficulty levels for solo practice or competitive play. Suitable for students, teachers, and chemistry enthusiasts.

**Highlights:** Card-based learning game, Audio narration and video explanations, Extensive card sets (pharmaceutical, hydrocarbons, etc.), CPU battles with adjustable difficulty, Solo practice mode, Visual list view for structures

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

**In-app purchases:** none


## Frequently asked questions

### Is 聖遺物DB free?

聖遺物DB is free to download, with no in-app purchases.

### Is Chemical structure Karuta free?

Chemical structure Karuta is free to download, with no in-app purchases.

### Do 聖遺物DB or Chemical structure Karuta have ads?

Neither 聖遺物DB nor Chemical structure Karuta shows ads.

### Which is updated more often, 聖遺物DB or Chemical structure Karuta?

聖遺物DB ships an update every 6 weeks, and Chemical structure Karuta every 4 months. Most recently, 聖遺物DB was updated on July 7, 2026 and Chemical structure Karuta on September 22, 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.*