# CDC Vaccine Schedules vs BladderSafe

The clearest difference is iOS requirement: BladderSafe at 13.0 against CDC Vaccine Schedules's 15.0. 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.

CDC Vaccine Schedules ships an update every 3 months, BladderSafe every 2 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | CDC Vaccine Schedules | BladderSafe |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (93 ratings)](https://appshunter.io/ios/app/cdc-vaccine-schedules/id875273858/reviews)** | — |
| Number of ratings | **93** | — |
| Positive reviews | 45.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 8 MB | 18 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Centers For Disease Control and Prevention](https://appshunter.io/developer/439259253) | [The University of Michigan](https://appshunter.io/developer/380339599) |

## What reviewers say

### CDC Vaccine Schedules

[App page](https://appshunter.io/ios/app/cdc-vaccine-schedules/id875273858)

Provides healthcare professionals with quick access to CDC-recommended immunization schedules for all ages. Features include color-coded schedules, hyperlinked vaccine details, and catch-up schedules. Content is automatically updated when connected to ensure the latest information.

**Highlights:** Infant, child, and adolescent schedules, Adult immunization recommendations, Contraindications and precautions table, Color-coded schedule coordination, Hyperlinked dose specifics, Catch-up schedule guidance, Automatic content updates

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

**In-app purchases:** none

**What reviewers like**

- 👍 Handy reference for vaccine schedules
- 👍 Good for pharmacists
- 👍 Useful for NPs
- 👍 Informative for parents
- 👍 Quick and easy navigation

**What reviewers complain about**

- 🐛 Not updating to current recommendations
- 🐛 No longer valuable for vaccines
- 🐛 Dangerous and useless ordeal
- 🐛 Not user friendly
- 🐛 Poor app design

**Reported bugs**

- App not updating to current recommendations
- App stopped working
- App no longer loads
- App keeps crashing
- App freezes and cannot press home button

**Requested features**

- Update to current recommendations
- Include COVID and travel vaccines
- Separate guide for 65+
- Include adverse effects and package inserts
- Allow continuous symptom monitoring and reporting


### BladderSafe

[App page](https://appshunter.io/ios/app/bladdersafe/id1600516064)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CDC Vaccine Schedules free?

CDC Vaccine Schedules is free to download, with no in-app purchases.

### Is BladderSafe free?

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

### Do CDC Vaccine Schedules or BladderSafe have ads?

Neither CDC Vaccine Schedules nor BladderSafe shows ads.

### Which is updated more often, CDC Vaccine Schedules or BladderSafe?

CDC Vaccine Schedules ships an update every 3 months, and BladderSafe every 2 months. Most recently, CDC Vaccine Schedules was updated on October 24, 2026 and BladderSafe on October 25, 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.*