# Guide Zéphir vs Drago

The clearest difference is review sentiment: Drago at 100% against Guide Zéphir's 43%. Drago also leads on iOS requirement (12.0 vs 15.1). On price, update cadence, 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.

Guide Zéphir ships an update every 5 months, Drago every 2 months. The most recent releases landed on August 27, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Guide Zéphir | Drago |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 42.9% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Free | Free |
| Size | 37 MB | 245 MB |
| Requires iOS | 15.1 | **12.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [SOC PNEUMOLOGIE LANGUE FRANCAISE](https://appshunter.io/developer/1494910317) | [Drago](https://appshunter.io/developer/1506576927) |

## What reviewers say

### Guide Zéphir

[App page](https://appshunter.io/ios/app/guide-zephir/id596400437)

A therapeutic education tool for healthcare professionals and students, this app provides a directory of medical devices categorized by indication, therapeutic class, and INN. It includes enriching video content to support learning and practice.

**Highlights:** Therapeutic education tool, Directory of medical devices, Categorized by indication, Categorized by therapeutic class, Categorized by INN, Enriched with videos

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

**In-app purchases:** none


### Drago

[App page](https://appshunter.io/ios/app/drago/id1506576928)

This app gamifies daily allergy desensitization treatment with a customizable dragon avatar. Players earn rewards and unlock new content by adhering to their treatment plan, fostering engagement and progress.

**Highlights:** Gamified daily treatment adherence, Customizable dragon avatar, In-game rewards and progression, Leaderboards and social sharing, Unlockable games and accessories

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

**In-app purchases:** none


## Frequently asked questions

### Is Guide Zéphir free?

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

### Is Drago free?

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

### Do Guide Zéphir or Drago have ads?

Neither Guide Zéphir nor Drago shows ads.

### Which is updated more often, Guide Zéphir or Drago?

Guide Zéphir ships an update every 5 months, and Drago every 2 months. Most recently, Guide Zéphir was updated on August 27, 2026 and Drago on September 21, 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.*