# 1D | 日本最大級の歯科医療メディア vs Dental Smile Analyzer

The clearest difference is in-app purchases: 1D | 日本最大級の歯科医療メディア at none against Dental Smile Analyzer's 2. 1D | 日本最大級の歯科医療メディア also leads on iOS requirement (15.0 vs 17.0). Dental Smile Analyzer's advantage is update cadence (every 5 days vs every 3 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Dental Smile Analyzer sells 2 in-app purchases, starting at $9.99 per month. 1D | 日本最大級の歯科医療メディア asks for nothing beyond the download.

1D | 日本最大級の歯科医療メディア ships an update every 3 weeks, Dental Smile Analyzer every 5 days. Both last shipped on October 29, 2026.

## The numbers

| Metric | 1D | 日本最大級の歯科医療メディア | Dental Smile Analyzer |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 33.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 5 days** |
| Monetization | Free | — |
| Size | 62 MB | 18 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 12+ |
| Developer | [1D inc.](https://appshunter.io/developer/566809181) | [Toshinari Toyama](https://appshunter.io/developer/6814337760) |

## What reviewers say

### 1D | 日本最大級の歯科医療メディア

[App page](https://appshunter.io/ios/app/1d/id1461470012)

Access a vast library of dental seminars and master courses from top clinicians and researchers. Learn efficiently with features like variable playback speed and slide search. Cancel anytime.

**Highlights:** Daily new dental seminars, 1,000+ dental seminars available, 14 fields, 100+ hours master courses, Variable playback speed, My list and slide search, Cancel anytime

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Dental Smile Analyzer

[App page](https://appshunter.io/ios/app/dental-smile-analyzer/id6814337248)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $9.99 | per month |
| Yearly | $99.99 | per year |


## Frequently asked questions

### Is 1D | 日本最大級の歯科医療メディア free?

1D | 日本最大級の歯科医療メディア is free to download, with no in-app purchases.

### Is Dental Smile Analyzer free?

Dental Smile Analyzer is free to download, with in-app purchases available.

### Do 1D | 日本最大級の歯科医療メディア or Dental Smile Analyzer have ads?

Neither 1D | 日本最大級の歯科医療メディア nor Dental Smile Analyzer shows ads.

### Which is updated more often, 1D | 日本最大級の歯科医療メディア or Dental Smile Analyzer?

1D | 日本最大級の歯科医療メディア ships an update every 3 weeks, and Dental Smile Analyzer every 5 days. Most recently, 1D | 日本最大級の歯科医療メディア was updated on October 29, 2026 and Dental Smile Analyzer on October 29, 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.*