# Chemical Elements Learning vs Idle Curiosity

The clearest difference is rating: Idle Curiosity at 5.0 against Chemical Elements Learning's 3.7. Idle Curiosity also leads on ads (none vs shown) and update cadence (every 3 days vs every 3 months). On price, ratings volume, in-app purchases and device support there is nothing between them.

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

Idle Curiosity holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 4 respectively.

Chemical Elements Learning ships an update every 3 months, Idle Curiosity every 3 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Chemical Elements Learning | Idle Curiosity |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/chemical-elements-learning/id1671402037/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/idle-curiosity/id6794950915/reviews)** |
| Number of ratings | 3 | **4** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | Ad-supported | **Free** |
| Size | 14 MB | 4 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ryouhei Azuma](https://appshunter.io/developer/1353297781) | [Adam Siegel](https://appshunter.io/developer/6794950917) |

## What reviewers say

### Chemical Elements Learning

[App page](https://appshunter.io/ios/app/chemical-elements-learning/id1671402037)

Learn chemical element symbols and atomic numbers with interactive quizzes. Customize quiz settings for effective memorization. Ideal for science and chemistry test preparation.

**Highlights:** List of elements 1-118, Element symbol quiz, Customizable quiz settings, Memorization aid, Test preparation tool

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

**In-app purchases:** none


### Idle Curiosity

[App page](https://appshunter.io/ios/app/idle-curiosity/id6794950915)

Discover twenty surprising and true facts daily across ten diverse categories. This app offers a unique learning experience, presenting information in visually appealing cards and encouraging sharing. It's designed to be an engaging alternative to mindless scrolling.

**Highlights:** Twenty surprising facts daily, Ten diverse categories, Full-screen card interface, Shareable daily receipts, Rare and Legendary fact finds, Pause cards with quotes, Streak tracking and trophy case

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Chemical Elements Learning free?

Chemical Elements Learning is free to download, with no in-app purchases.

### Is Idle Curiosity free?

Idle Curiosity is free to download, with no in-app purchases.

### Which has better reviews, Chemical Elements Learning or Idle Curiosity?

Idle Curiosity is rated higher. Chemical Elements Learning averages 3.7 out of 5 from 3 ratings, while Idle Curiosity averages 5.0 from 4 ratings.

### Do Chemical Elements Learning or Idle Curiosity have ads?

Chemical Elements Learning shows ads; Idle Curiosity does not.

### Which is updated more often, Chemical Elements Learning or Idle Curiosity?

Chemical Elements Learning ships an update every 3 months, and Idle Curiosity every 3 days. Most recently, Chemical Elements Learning was updated on October 30, 2026 and Idle Curiosity 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.*