# 4000基础必备英语单词4 vs Visual Periodic Table Chemie

The clearest difference is update cadence: Visual Periodic Table Chemie at every 3 weeks against 4000基础必备英语单词4's every 2 months. Visual Periodic Table Chemie also leads on iOS requirement (11.0 vs 15.0). 4000基础必备英语单词4's advantage is price ($0.99 vs $1.99). On ads, in-app purchases and device support there is nothing between them.

4000基础必备英语单词4 costs $0.99 and Visual Periodic Table Chemie $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

4000基础必备英语单词4 ships an update every 2 months, Visual Periodic Table Chemie every 3 weeks. The most recent releases landed on October 16, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | 4000基础必备英语单词4 | Visual Periodic Table Chemie |
| --- | --- | --- |
| Price | **$0.99** | $1.99 |
| 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 | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | — | Paid |
| Size | 191 MB | 184 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| 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4

[App page](https://appshunter.io/ios/app/40004/id1640444012)

**Features:** macOS Compatibility

**In-app purchases:** none


### Visual Periodic Table Chemie

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

Access comprehensive data on all chemical elements, including atomic properties and molecular formulas. This tool features a detailed periodic table and reaction calculators to aid in chemistry studies and professional work.

**Highlights:** Element information lookup, Detailed periodic table, Molecular formula data, Crystal structure details, Electron energy levels, Chemical reaction calculators

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 4000基础必备英语单词4 free?

4000基础必备英语单词4 costs $0.99, with no in-app purchases.

### Is Visual Periodic Table Chemie free?

Visual Periodic Table Chemie costs $1.99, with no in-app purchases.

### Do 4000基础必备英语单词4 or Visual Periodic Table Chemie have ads?

Neither 4000基础必备英语单词4 nor Visual Periodic Table Chemie shows ads.

### Which is updated more often, 4000基础必备英语单词4 or Visual Periodic Table Chemie?

4000基础必备英语单词4 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4 was updated on October 16, 2026 and Visual Periodic Table Chemie on October 27, 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.*