# Smile Train vs Hand Surgery Source

The clearest difference is update cadence: Hand Surgery Source at every 3 weeks against Smile Train's every 4 months. Smile Train's advantage is iOS requirement (12.0 vs 14.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Smile Train ships an update every 4 months, Hand Surgery Source every 3 weeks. The most recent releases landed on September 30, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Smile Train | Hand Surgery Source |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.9 (7 ratings)](https://appshunter.io/ios/app/hand-surgery-source/id1544047117/reviews)** |
| Number of ratings | — | **7** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | — | Free |
| Size | 64 MB | 43 MB |
| Requires iOS | **12.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [BioDigital, Inc.](https://appshunter.io/developer/581713012) | [Hand Surgery Resource](https://appshunter.io/developer/1544047119) |

## What reviewers say

### Smile Train

[App page](https://appshunter.io/ios/app/smile-train/id1508571431)

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

**In-app purchases:** none


### Hand Surgery Source

[App page](https://appshunter.io/ios/app/hand-surgery-source/id1544047117)

This app provides medical professionals with on-the-go access to a comprehensive knowledge base on hand surgery. It features diagnostic guides, CPT codes, exam details, and visual aids like photos and videos.

**Highlights:** Diagnostic guides, CPT codes, Exam, test, and sign sections, Diagnostic studies, Search function, Photos and drawings, Videos

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

**In-app purchases:** none


## Frequently asked questions

### Is Smile Train free?

Smile Train is free to download, with no in-app purchases.

### Is Hand Surgery Source free?

Hand Surgery Source is free to download, with no in-app purchases.

### Do Smile Train or Hand Surgery Source have ads?

Neither Smile Train nor Hand Surgery Source shows ads.

### Which is updated more often, Smile Train or Hand Surgery Source?

Smile Train ships an update every 4 months, and Hand Surgery Source every 3 weeks. Most recently, Smile Train was updated on September 30, 2026 and Hand Surgery Source on October 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*