# Project PROTECTS vs JointBooklet

The clearest difference is update cadence: JointBooklet at every 4 days against Project PROTECTS's monthly. 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.

Project PROTECTS ships an update monthly, JointBooklet every 4 days. The most recent releases landed on October 1, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Project PROTECTS | JointBooklet |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/project-protects/id6497479699/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Every 4 days** |
| Monetization | Free | — |
| Size | 80 MB | 124 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 12+ |
| Developer | [Vibrent Health, Inc.](https://appshunter.io/developer/1236953707) | [Matthew Harb](https://appshunter.io/developer/6772332897) |

## What reviewers say

### Project PROTECTS

[App page](https://appshunter.io/ios/app/project-protects/id6497479699)

This research study invites adults in the US to help understand the effects of respiratory infections. Participants need a smartphone, email, and internet access to contribute to vital health research.

**Highlights:** Participate in health research, Understand infection effects, Smartphone required, US-based eligibility, Contribute to scientific understanding

**Features:** macOS Compatibility

**In-app purchases:** none


### JointBooklet

[App page](https://appshunter.io/ios/app/jointbooklet/id6772332895)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Project PROTECTS free?

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

### Is JointBooklet free?

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

### Do Project PROTECTS or JointBooklet have ads?

Neither Project PROTECTS nor JointBooklet shows ads.

### Which is updated more often, Project PROTECTS or JointBooklet?

Project PROTECTS ships an update monthly, and JointBooklet every 4 days. Most recently, Project PROTECTS was updated on October 1, 2026 and JointBooklet on October 5, 2026.

---

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