# Preserve Smart vs Project PROTECTS

The clearest difference is review sentiment: Project PROTECTS at 67% against Preserve Smart's 10%. Project PROTECTS also leads on rating (3.7 vs 1.9). Preserve Smart's advantage is ratings volume (18 vs 3) and iOS requirement (9.0 vs 15.6). 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.

Project PROTECTS holds the better App Store score, 3.7 against 1.9. That said, the two scores are not equally well evidenced: Preserve Smart has 18 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 10% of Preserve Smart's written reviews are positive against 67% of Project PROTECTS's.

Preserve Smart ships an update every 3 weeks, Project PROTECTS monthly. The most recent releases landed on October 5, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Preserve Smart | Project PROTECTS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.9 (18 ratings)](https://appshunter.io/ios/app/preserve-smart/id1349456572/reviews) | **[3.7 (3 ratings)](https://appshunter.io/ios/app/project-protects/id6497479699/reviews)** |
| Number of ratings | **18** | 3 |
| Positive reviews | 10.0% of reviews | **66.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Monetization | Free | Free |
| Size | 2 MB | 80 MB |
| Requires iOS | **9.0** | 15.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Colorado State University](https://appshunter.io/developer/527760765) | [Vibrent Health, Inc.](https://appshunter.io/developer/1236953707) |

## What reviewers say

### Preserve Smart

[App page](https://appshunter.io/ios/app/preserve-smart/id1349456572)

Access tested food preservation recipes and instructions tailored to your elevation and location. Get canning, freezing, and drying guidance for over 50 foods, based on research from Colorado State University Extension.

**Highlights:** Elevation-based recipe adjustments, Seasonal produce information by state, Canning, freezing, and drying instructions, Recipes for over 50 foods, Research-backed recommendations

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Preserve Smart free?

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

### Is Project PROTECTS free?

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

### Which has better reviews, Preserve Smart or Project PROTECTS?

Project PROTECTS is rated higher. Preserve Smart averages 1.9 out of 5 from 18 ratings, while Project PROTECTS averages 3.7 from 3 ratings.

### Do Preserve Smart or Project PROTECTS have ads?

Neither Preserve Smart nor Project PROTECTS shows ads.

### Which is updated more often, Preserve Smart or Project PROTECTS?

Preserve Smart ships an update every 3 weeks, and Project PROTECTS monthly. Most recently, Preserve Smart was updated on October 5, 2026 and Project PROTECTS 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.*