# Chemistry Widget vs Ivy Notes

The clearest difference is price: Chemistry Widget at $0.99 against Ivy Notes's $3.99. On update cadence, ads, in-app purchases and device support there is nothing between them.

Chemistry Widget costs $0.99 and Ivy Notes $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 20, 2026 and August 26, 2026 respectively.

## The numbers

| Metric | Chemistry Widget | Ivy Notes |
| --- | --- | --- |
| Price | **$0.99** | $3.99 |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/chemistry-widget/id6746058742/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Monetization | Paid | — |
| Size | 5 MB | 6 MB |
| Requires iOS | 18.4 | **17.6** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 17+ |
| Developer | [Cecile Lebleu](https://appshunter.io/developer/1701666740) | [树伟 杨](https://appshunter.io/developer/1843510075) |

## What reviewers say

### Chemistry Widget

[App page](https://appshunter.io/ios/app/chemistry-widget/id6746058742)

Explore detailed profiles of every element on the periodic table, including their origins, uses, and scientific properties. This app offers interactive Home Screen widgets to discover new elements daily, making science accessible for students and enthusiasts.

**Highlights:** Detailed element profiles, Origins and etymology, Main uses and facts, Home Screen widgets, Filter by properties (radioactive, toxic), Filter by group block

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

**In-app purchases:** none


### Ivy Notes

[App page](https://appshunter.io/ios/app/ivy-notes/id6760211433)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Chemistry Widget free?

Chemistry Widget costs $0.99, with no in-app purchases.

### Is Ivy Notes free?

Ivy Notes costs $3.99, with no in-app purchases.

### Do Chemistry Widget or Ivy Notes have ads?

Neither Chemistry Widget nor Ivy Notes shows ads.

### Which is updated more often, Chemistry Widget or Ivy Notes?

Chemistry Widget ships an update every 3 weeks, and Ivy Notes every 3 weeks. Most recently, Chemistry Widget was updated on September 20, 2026 and Ivy Notes on August 26, 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.*