# Studyaid D.B. ビューア vs 超教科書

The clearest difference is review sentiment: Studyaid D.B. ビューア at 61% against 超教科書's 0%. Studyaid D.B. ビューア also leads on iOS requirement (11.0 vs 17.0). On price, update cadence, ads and in-app purchases there is nothing between them.

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

Studyaid D.B. ビューア ships an update every 5 months, 超教科書 every 6 months. The most recent releases landed on September 22, 2026 and September 1, 2026 respectively.

## The numbers

| Metric | Studyaid D.B. ビューア | 超教科書 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | **61.3% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 months** | Every 6 months |
| Monetization | Free | — |
| Size | 10 MB | 24 MB |
| Requires iOS | **11.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Suken Shuppan K.K.](https://appshunter.io/developer/611090511) | [BPS Co., Ltd.](https://appshunter.io/developer/382218933) |

## What reviewers say

### Studyaid D.B. ビューア

[App page](https://appshunter.io/ios/app/studyaid-db/id1436112726)

This viewer app allows you to display educational worksheets created with "Studyaid D.B." on your iPhone or iPad. View received worksheets anytime, anywhere, even offline, and switch between questions, answers, and explanations. Share your understanding by marking questions as "understood" or "not understood."

**Highlights:** Display worksheets created with Studyaid D.B., Offline viewing of received worksheets, Toggle questions, answers, and explanations, Share understanding with 'understood'/'not understood' markers, Network connection required for receiving prints

**In-app purchases:** none


### 超教科書

[App page](https://appshunter.io/ios/app/id1487009319)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Studyaid D.B. ビューア free?

Studyaid D.B. ビューア is free to download, with no in-app purchases.

### Is 超教科書 free?

超教科書 is free to download, with no in-app purchases.

### Do Studyaid D.B. ビューア or 超教科書 have ads?

Neither Studyaid D.B. ビューア nor 超教科書 shows ads.

### Which is updated more often, Studyaid D.B. ビューア or 超教科書?

Studyaid D.B. ビューア ships an update every 5 months, and 超教科書 every 6 months. Most recently, Studyaid D.B. ビューア was updated on September 22, 2026 and 超教科書 on September 1, 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.*