# NADA2go vs Step Mastery

The clearest difference is in-app purchases: NADA2go at none against Step Mastery's 5. NADA2go also leads on iOS requirement (12.0 vs 15.6). Step Mastery's advantage is update cadence (every 5 days vs every 4 months). On price, ads and device support there is nothing between them.

Both are free to download. Step Mastery sells 5 in-app purchases, starting at $3.99 per month. NADA2go asks for nothing beyond the download.

NADA2go ships an update every 4 months, Step Mastery every 5 days. The most recent releases landed on October 7, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | NADA2go | Step Mastery |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 70.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 days** |
| Monetization | Free | — |
| Size | 5 MB | 121 MB |
| Requires iOS | **12.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [kultwerk GmbH](https://appshunter.io/developer/457889187) | [Michael Thomas Huhn](https://appshunter.io/developer/1714876308) |

## What reviewers say

### NADA2go

[App page](https://appshunter.io/ios/app/nada2go/id532478926)

Check medication for doping relevance in the NADAmed database, find doping-free treatments, and assess the doping risk of supplements. Access anti-doping information, tools, and lists for clean performance. Download now to use tools offline and personalize content with favorites and watchlists.

**Highlights:** Medication doping relevance check, Find doping-free treatments, Assess supplement doping risk, Offline tool usage, Personalized favorites and watchlists, Contact relevant NADA personnel

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

**In-app purchases:** none


### Step Mastery

[App page](https://appshunter.io/ios/app/step-mastery/id6471152613)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $3.99 | per month |
| School Basic - Monthly | $17.99 | per month |
| Premium | $24.99 | per year |
| School Professional - Monthly | $69.99 | per month |
| School Enterprise - Monthly | $129.00 | per month |


## Frequently asked questions

### Is NADA2go free?

NADA2go is free to download, with no in-app purchases.

### Is Step Mastery free?

Step Mastery is free to download, with in-app purchases available.

### Do NADA2go or Step Mastery have ads?

Neither NADA2go nor Step Mastery shows ads.

### Which is updated more often, NADA2go or Step Mastery?

NADA2go ships an update every 4 months, and Step Mastery every 5 days. Most recently, NADA2go was updated on October 7, 2026 and Step Mastery on September 22, 2026.

---

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