# I see! Math1 vs QB説明　２年　長さと水のかさ

The clearest difference is update cadence: I see! Math1 at every 4 months against QB説明　２年　長さと水のかさ's every 32 months. QB説明　２年　長さと水のかさ's advantage is price ($3.99 vs $9.99) and iOS requirement (13.0 vs 15.0). On ads, in-app purchases and device support there is nothing between them.

I see! Math1 costs $9.99 and QB説明　２年　長さと水のかさ $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

I see! Math1 ships an update every 4 months, QB説明　２年　長さと水のかさ every 32 months. The most recent releases landed on October 17, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | I see! Math1 | QB説明　２年　長さと水のかさ |
| --- | --- | --- |
| Price | $9.99 | **$3.99** |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/i-see-math1/id550058952/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 68.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 32 months |
| Monetization | Paid | — |
| Size | 90 MB | 9 MB |
| Requires iOS | 15.0 | **13.0** |
| 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

### I see! Math1

[App page](https://appshunter.io/ios/app/i-see-math1/id550058952)

This app offers a comprehensive math curriculum for first graders, covering all essential units through interactive animations, voiceovers, and engaging stories. It provides bilingual learning in English and Japanese with subtitles, and includes practice drills to reinforce skills. The design is safe and secure, with no ads or in-app purchases.

**Highlights:** Full year curriculum for 1st graders, Interactive animated explanations, Bilingual English/Japanese support, Subtitled animations, Practice drills with hints, Safe and ad-free environment

**In-app purchases:** none


### QB説明　２年　長さと水のかさ

[App page](https://appshunter.io/ios/app/qb/id1470191466)

**In-app purchases:** none


## Frequently asked questions

### Is I see! Math1 free?

I see! Math1 costs $9.99, with no in-app purchases.

### Is QB説明　２年　長さと水のかさ free?

QB説明　２年　長さと水のかさ costs $3.99, with no in-app purchases.

### Do I see! Math1 or QB説明　２年　長さと水のかさ have ads?

Neither I see! Math1 nor QB説明　２年　長さと水のかさ shows ads.

### Which is updated more often, I see! Math1 or QB説明　２年　長さと水のかさ?

I see! Math1 ships an update every 4 months, and QB説明　２年　長さと水のかさ every 32 months. Most recently, I see! Math1 was updated on October 17, 2026 and QB説明　２年　長さと水のかさ on October 10, 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.*