# 4000基础必备英语单词3 vs Visual Periodic Table Chemie

The clearest difference is price: Visual Periodic Table Chemie at Free against 4000基础必备英语单词3's $0.99. Visual Periodic Table Chemie also leads on update cadence (every 3 weeks vs every 2 months). 4000基础必备英语单词3's advantage is in-app purchases (none vs 4). On ads, device support and iOS requirement there is nothing between them.

Visual Periodic Table Chemie is free to download; 4000基础必备英语单词3 costs $0.99 up front. Visual Periodic Table Chemie sells 4 one-off in-app purchases. 4000基础必备英语单词3 asks for nothing beyond the download.

4000基础必备英语单词3 ships an update every 2 months, Visual Periodic Table Chemie every 3 weeks. Both last shipped on November 3, 2026.

## The numbers

| Metric | 4000基础必备英语单词3 | Visual Periodic Table Chemie |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[4.5 (2 ratings)](https://appshunter.io/ios/app/visual-periodic-table-chemie/id1661609052/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 172 MB | 275 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [水生 王](https://appshunter.io/developer/1587470458) | [博 彭](https://appshunter.io/developer/1293268076) |

## What reviewers say

### 4000基础必备英语单词3

[App page](https://appshunter.io/ios/app/40003/id1640443262)

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

**In-app purchases:** none


### Visual Periodic Table Chemie

[App page](https://appshunter.io/ios/app/visual-periodic-table-chemie/id1661609052)

Access detailed information on all elements, including properties, molecular formulas, and crystal structures. Features a comprehensive periodic table and chemical reaction calculators to aid in studies and work.

**Highlights:** Element properties lookup, Molecular formula information, Crystal structure visualization, Periodic table display, Chemical reaction calculators, Advanced models (with purchase)

**Features:** Vision Pro support, iPhone Duo support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| A Little Encouragement | $1.99 | one-time |
| Advanced Exploration | $4.99 | one-time |
| Support Continued Development | $4.99 | one-time |
| A Big Thank-You | $9.99 | one-time |


## Frequently asked questions

### Is 4000基础必备英语单词3 free?

4000基础必备英语单词3 costs $0.99, with no in-app purchases.

### Is Visual Periodic Table Chemie free?

Visual Periodic Table Chemie is free to download, with in-app purchases available.

### Do 4000基础必备英语单词3 or Visual Periodic Table Chemie have ads?

Neither 4000基础必备英语单词3 nor Visual Periodic Table Chemie shows ads.

### Which is updated more often, 4000基础必备英语单词3 or Visual Periodic Table Chemie?

4000基础必备英语单词3 ships an update every 2 months, and Visual Periodic Table Chemie every 3 weeks. Most recently, 4000基础必备英语单词3 was updated on November 3, 2026 and Visual Periodic Table Chemie on November 3, 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.*