# Learn science element symbol vs 気持ち良い計算尺

The clearest difference is in-app purchases: 気持ち良い計算尺 at none against Learn science element symbol's 1. 気持ち良い計算尺 also leads on ads (none vs shown) and update cadence (monthly vs every 6 months). Learn science element symbol's advantage is device support (3 vs 1) and iOS requirement (12.0 vs 18.6). On price there is nothing between them.

Both are free to download. Learn science element symbol sells 1 one-off in-app purchase. 気持ち良い計算尺 asks for nothing beyond the download.

Learn science element symbol ships an update every 6 months, 気持ち良い計算尺 monthly. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Learn science element symbol | 気持ち良い計算尺 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/learn-science-element-symbol/id1150853079/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 6 months | **Monthly** |
| Monetization | Free with in-app purchases | — |
| Size | 11 MB | 1 MB |
| Requires iOS | **12.0** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [kenji kiuchi](https://appshunter.io/developer/553473005) | [masahiko akita](https://appshunter.io/developer/1891674153) |

## What reviewers say

### Learn science element symbol

[App page](https://appshunter.io/ios/app/learn-science-element-symbol/id1150853079)

This educational app helps users memorize chemical element symbols through a quiz format based on the periodic table. It offers different difficulty levels and tracks accuracy to identify areas for improvement. Aim to clear challenge levels by answering all questions correctly.

**Highlights:** Periodic table quiz format, Easy and Hard difficulty modes, Hint system in Easy mode, Challenge level completion, Accuracy rate tracking, Identification of weak elements

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| remove Ad. | $9.99 | one-time |


### 気持ち良い計算尺

[App page](https://appshunter.io/ios/app/id6787395929)

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

**In-app purchases:** none


## Frequently asked questions

### Is Learn science element symbol free?

Learn science element symbol is free to download, with in-app purchases available.

### Is 気持ち良い計算尺 free?

気持ち良い計算尺 is free to download, with no in-app purchases.

### Do Learn science element symbol or 気持ち良い計算尺 have ads?

Learn science element symbol shows ads; 気持ち良い計算尺 does not.

### Which is updated more often, Learn science element symbol or 気持ち良い計算尺?

Learn science element symbol ships an update every 6 months, and 気持ち良い計算尺 monthly. Most recently, Learn science element symbol was updated on November 2, 2026 and 気持ち良い計算尺 on October 31, 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.*