# AT vs UniversalVAX

The clearest difference is update cadence: UniversalVAX at daily against AT's every 6 months. AT's advantage is iOS requirement (15.0 vs 17.6). 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.

AT ships an update every 6 months, UniversalVAX daily. The most recent releases landed on October 8, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | AT | UniversalVAX |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 20.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 6 months | **Daily** |
| Monetization | Free | — |
| Size | 84 MB | 23 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Actions Traitements](https://appshunter.io/developer/1377566686) | [Yann Usseglio](https://appshunter.io/developer/1804161838) |

## What reviewers say

### AT

[App page](https://appshunter.io/ios/app/at-prep/id1665141713)

This app helps users adhere to their PrEP medication schedule with customizable reminders and follow-up notifications. It also allows tracking of medical appointments, sexual activity, emotions, and menstrual cycles, with a feature to check for drug interactions.

**Highlights:** PrEP medication reminders, On-demand and continuous PrEP tracking, Post-reminder follow-up notifications, Medical appointment logging, Sexual activity and emotion tracking, Menstrual cycle tracking, Drug interaction checker

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

**In-app purchases:** none


### UniversalVAX

[App page](https://appshunter.io/ios/app/universalvax/id6751412814)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is AT free?

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

### Is UniversalVAX free?

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

### Do AT or UniversalVAX have ads?

Neither AT nor UniversalVAX shows ads.

### Which is updated more often, AT or UniversalVAX?

AT ships an update every 6 months, and UniversalVAX daily. Most recently, AT was updated on October 8, 2026 and UniversalVAX on October 17, 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.*