# わかる！算数 小学３年【下】 vs QB説明　２年　三角形と四角形

The clearest difference is price: QB説明　２年　三角形と四角形 at $5.99 against わかる！算数 小学３年【下】's $9.99. QB説明　２年　三角形と四角形 also leads on iOS requirement (11.0 vs 15.0). わかる！算数 小学３年【下】's advantage is update cadence (every 10 months vs every 34 months). On ads, in-app purchases and device support there is nothing between them.

わかる！算数 小学３年【下】 costs $9.99 and QB説明　２年　三角形と四角形 $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

わかる！算数 小学３年【下】 ships an update every 10 months, QB説明　２年　三角形と四角形 every 34 months. The most recent releases landed on June 5, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | わかる！算数 小学３年【下】 | QB説明　２年　三角形と四角形 |
| --- | --- | --- |
| Price | $9.99 | **$5.99** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 10 months** | Every 34 months |
| Monetization | Paid | — |
| Size | 62 MB | 11 MB |
| Requires iOS | 15.0 | **11.0** |
| Devices | iPad | iPad |
| Age rating | 4+ | 4+ |
| Developer | [がくげい](https://appshunter.io/developer/415230275) | [Suzuki Educational Software Co.,Ltd.](https://appshunter.io/developer/585512975) |

## What reviewers say

### わかる！算数 小学３年【下】

[App page](https://appshunter.io/ios/app/id684077829)

This app helps third-grade students master the second half of their math curriculum through engaging animations and practice drills. It covers topics like decimals, fractions, and geometry, aligning with national educational standards.

**Highlights:** Covers second half of 3rd-grade math curriculum, 22 units and 44 corners of content, Animation and drill-based learning, Full voice-overs with cute characters, Progress tracking with clear indicators, No in-app purchases or ads

**In-app purchases:** none


### QB説明　２年　三角形と四角形

[App page](https://appshunter.io/ios/app/qb/id1005438734)

**In-app purchases:** none


## Frequently asked questions

### Is わかる！算数 小学３年【下】 free?

わかる！算数 小学３年【下】 costs $9.99, with no in-app purchases.

### Is QB説明　２年　三角形と四角形 free?

QB説明　２年　三角形と四角形 costs $5.99, with no in-app purchases.

### Do わかる！算数 小学３年【下】 or QB説明　２年　三角形と四角形 have ads?

Neither わかる！算数 小学３年【下】 nor QB説明　２年　三角形と四角形 shows ads.

### Which is updated more often, わかる！算数 小学３年【下】 or QB説明　２年　三角形と四角形?

わかる！算数 小学３年【下】 ships an update every 10 months, and QB説明　２年　三角形と四角形 every 34 months. Most recently, わかる！算数 小学３年【下】 was updated on June 5, 2026 and QB説明　２年　三角形と四角形 on September 8, 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.*