# 楽しくなる算数2年下 vs IPST Chemistry E

The clearest difference is price: IPST Chemistry E at Free against 楽しくなる算数2年下's $8.99. IPST Chemistry E also leads on update cadence (every 5 months vs every 18 months) and device support (3 vs 1). On ads, in-app purchases and iOS requirement there is nothing between them.

IPST Chemistry E is free to download; 楽しくなる算数2年下 costs $8.99 up front. Neither carries in-app purchases, so what you see is what you pay.

楽しくなる算数2年下 ships an update every 18 months, IPST Chemistry E every 5 months. The most recent releases landed on November 11, 2026 and November 1, 2026 respectively.

## The numbers

| Metric | 楽しくなる算数2年下 | IPST Chemistry E |
| --- | --- | --- |
| Price | $8.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ipst-chemistry-e-book-periodic-table/id1027846900/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 5 months** |
| Monetization | — | Free |
| Size | 80 MB | 29 MB |
| Requires iOS | 9.0 | **8.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [KoikeSystemPro Inc.,](https://appshunter.io/developer/426904750) | [Kathi Studio Co.,Ltd.](https://appshunter.io/developer/436981312) |

## What reviewers say

### 楽しくなる算数2年下

[App page](https://appshunter.io/ios/app/2/id522611562)

**Features:** macOS Compatibility

**In-app purchases:** none


### IPST Chemistry E

[App page](https://appshunter.io/ios/app/ipst-chemistry-e-book-periodic-table/id1027846900)

This electronic textbook explores the periodic table, comparing properties of metals, metalloids, and nonmetals. It details trends in metallic properties, applications of elements, and radioactive elements, including their benefits and drawbacks. The app also contrasts fission and fusion nuclear reactions and their uses.

**Highlights:** Periodic table properties comparison, Metallic property trends analysis, Element applications and uses, Radioactive element properties, Fission vs. fusion reactions, Nuclear energy uses and impacts

**In-app purchases:** none


## Frequently asked questions

### Is 楽しくなる算数2年下 free?

楽しくなる算数2年下 costs $8.99, with no in-app purchases.

### Is IPST Chemistry E free?

IPST Chemistry E is free to download, with no in-app purchases.

### Do 楽しくなる算数2年下 or IPST Chemistry E have ads?

Neither 楽しくなる算数2年下 nor IPST Chemistry E shows ads.

### Which is updated more often, 楽しくなる算数2年下 or IPST Chemistry E?

楽しくなる算数2年下 ships an update every 18 months, and IPST Chemistry E every 5 months. Most recently, 楽しくなる算数2年下 was updated on November 11, 2026 and IPST Chemistry E on November 1, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*