# VaxBuddy vs Vaccine & Immunization Tracker

The clearest difference is in-app purchases: VaxBuddy at none against Vaccine & Immunization Tracker's 1. VaxBuddy also leads on iOS requirement (13.0 vs 15.5). Vaccine & Immunization Tracker's advantage is update cadence (every 2 weeks vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Vaccine & Immunization Tracker sells 1 one-off in-app purchase. VaxBuddy asks for nothing beyond the download.

VaxBuddy ships an update every 2 months, Vaccine & Immunization Tracker every 2 weeks. The most recent releases landed on October 12, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | VaxBuddy | Vaccine & Immunization Tracker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Size | 43 MB | 78 MB |
| Requires iOS | **13.0** | 15.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Vaxbuddy LLC](https://appshunter.io/developer/1875550342) | [Varsha Sharma](https://appshunter.io/developer/6776509160) |

## What reviewers say

### VaxBuddy

[App page](https://appshunter.io/ios/app/vaxbuddy/id6758889655)

**In-app purchases:** none


### Vaccine & Immunization Tracker

[App page](https://appshunter.io/ios/app/vaccine-and-immunization-tracker/id6776509158)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Unlock | $9.99 | one-time |


## Frequently asked questions

### Is VaxBuddy free?

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

### Is Vaccine & Immunization Tracker free?

Vaccine & Immunization Tracker is free to download, with in-app purchases available.

### Do VaxBuddy or Vaccine & Immunization Tracker have ads?

Neither VaxBuddy nor Vaccine & Immunization Tracker shows ads.

### Which is updated more often, VaxBuddy or Vaccine & Immunization Tracker?

VaxBuddy ships an update every 2 months, and Vaccine & Immunization Tracker every 2 weeks. Most recently, VaxBuddy was updated on October 12, 2026 and Vaccine & Immunization Tracker on October 25, 2026.

---

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