# 塔罗牌 vs Periodic Table

The clearest difference is in-app purchases: 塔罗牌 at none against Periodic Table's 2. 塔罗牌 also leads on iOS requirement (15.0 vs 17.0). Periodic Table's advantage is device support (3 vs 1). On price, update cadence and ads there is nothing between them.

Both are free to download. Periodic Table sells 2 one-off in-app purchases. 塔罗牌 asks for nothing beyond the download.

塔罗牌 ships an update every 2 weeks, Periodic Table every 8 days. The most recent releases landed on October 7, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | 塔罗牌 | Periodic Table |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/periodic-table-elements-lab/id6780071541/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 8 days** |
| Monetization | — | Free |
| Size | 921 MB | 144 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [HAI-TAO RAN,](https://appshunter.io/developer/1626588033) | [Rizk Corsight, LLC](https://appshunter.io/developer/1896065289) |

## What reviewers say

### 塔罗牌

[App page](https://appshunter.io/ios/app/hd/id1636436126)

**In-app purchases:** none


### Periodic Table

[App page](https://appshunter.io/ios/app/periodic-table-elements-lab/id6780071541)

Explore all 118 elements with detailed data, original illustrations, and a spaced-repetition study system. Features include a guided equation balancer, 3D atom view, and molar-mass calculator. This private app works offline and is designed for effective learning.

**Highlights:** All 118 elements with original illustrations, Spaced-repetition study system, Guided equation balancer, 3D atom view, Molar-mass calculator, Offline functionality, Curriculum packs for AP, IB, A-Level, GCSE, MCAT

**Features:** Family Sharing, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3-Day Trial | Free | one-time |
| Full Access Unlock | $4.99 | one-time |


## Frequently asked questions

### Is 塔罗牌 free?

塔罗牌 is free to download, with no in-app purchases.

### Is Periodic Table free?

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

### Do 塔罗牌 or Periodic Table have ads?

Neither 塔罗牌 nor Periodic Table shows ads.

### Which is updated more often, 塔罗牌 or Periodic Table?

塔罗牌 ships an update every 2 weeks, and Periodic Table every 8 days. Most recently, 塔罗牌 was updated on October 7, 2026 and Periodic Table on October 17, 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.*