# Denjoy Endo vs Instant Smiles

The clearest difference is update cadence: Denjoy Endo at every 3 weeks against Instant Smiles's every 2 months. Denjoy Endo also leads on device support (3 vs 1) and iOS requirement (11.0 vs 14.0). On price, 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.

Denjoy Endo ships an update every 3 weeks, Instant Smiles every 2 months. The most recent releases landed on October 27, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Denjoy Endo | Instant Smiles |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Size | 77 MB | 361 MB |
| Requires iOS | **11.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 17+ | 12+ |
| Developer | [DENJOY DENTAL CO.,LTD](https://appshunter.io/developer/1616797668) | [Dental Treatment Simulation](https://appshunter.io/developer/1741130559) |

## What reviewers say

### Denjoy Endo

[App page](https://appshunter.io/ios/app/denjoy-endo/id1616797666)

**Features:** macOS Compatibility

**In-app purchases:** none


### Instant Smiles

[App page](https://appshunter.io/ios/app/instant-smiles/id6496849205)

**In-app purchases:** none


## Frequently asked questions

### Is Denjoy Endo free?

Denjoy Endo is free to download, with no in-app purchases.

### Is Instant Smiles free?

Instant Smiles is free to download, with no in-app purchases.

### Do Denjoy Endo or Instant Smiles have ads?

Neither Denjoy Endo nor Instant Smiles shows ads.

### Which is updated more often, Denjoy Endo or Instant Smiles?

Denjoy Endo ships an update every 3 weeks, and Instant Smiles every 2 months. Most recently, Denjoy Endo was updated on October 27, 2026 and Instant Smiles on November 4, 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.*