# 脳活ドリル vs 歯をみがいて虫歯を防げ

脳活ドリル and 歯をみがいて虫歯を防げ are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | 脳活ドリル | 歯をみがいて虫歯を防げ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/time/id1471846637/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | — |
| Monetization | Ad-supported | — |
| Size | 111 MB | 62 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ZERONE](https://appshunter.io/developer/1708775781) | [Garhi Japan K.K.](https://appshunter.io/developer/1444709284) |

## What reviewers say

### 脳活ドリル

[App page](https://appshunter.io/ios/app/time/id1471846637)

A new type of brain training puzzle that sharpens your judgment by instantly identifying time. Simple tap-based gameplay diagnoses your abilities and enhances decision-making and spatial recognition with continued play.

**Highlights:** Instant time identification, Judgment training, Spatial recognition enhancement, Simple tap controls, Ability diagnosis

**Features:** macOS Compatibility

**In-app purchases:** none


### 歯をみがいて虫歯を防げ

[App page](https://appshunter.io/ios/app/id6747696240)

**In-app purchases:** none


## Frequently asked questions

### Is 脳活ドリル free?

脳活ドリル is free to download, with no in-app purchases.

### Is 歯をみがいて虫歯を防げ free?

歯をみがいて虫歯を防げ is free to download, with no in-app purchases.

### Do 脳活ドリル or 歯をみがいて虫歯を防げ have ads?

Both 脳活ドリル and 歯をみがいて虫歯を防げ show ads.

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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.*