# PROOF + vs Project 61

The clearest difference is rating: Project 61 at 5.0 against PROOF +'s 4.6. PROOF +'s advantage is ratings volume (109 vs 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 61 holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: PROOF + has 109 ratings behind it against 6, so its average is the more settled of the two.

PROOF + ships an update every 10 days, Project 61 weekly. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | PROOF + | Project 61 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (109 ratings)](https://appshunter.io/ios/app/proof-plus/id1471553656/reviews) | **[5.0 (6 ratings)](https://appshunter.io/ios/app/project-61/id6739217992/reviews)** |
| Number of ratings | **109** | 6 |
| Positive reviews | 52.4% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 10 days | **Weekly** |
| Monetization | Free | Free |
| Size | 433 MB | 87 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 12+ |
| Developer | [RecoveryTrek LLC](https://appshunter.io/developer/961222126) | [Offshift, Inc](https://appshunter.io/developer/1739401742) |

## What reviewers say

### PROOF +

[App page](https://appshunter.io/ios/app/proof-plus/id1471553656)

This app offers a patented mobile solution for drug and alcohol testing, simplifying specimen collection. It integrates with existing platforms or works independently, making testing easy, cost-effective, and reducing errors.

**Highlights:** Patented mobile testing solution, Simplifies specimen collection, Reduces scheduling conflicts, Integrates with existing platforms, Stand-alone solution option, Cost-effective testing, Reduces issues and errors

**Features:** Vision Pro support

**In-app purchases:** none


### Project 61

[App page](https://appshunter.io/ios/app/project-61/id6739217992)

A free health platform designed for professional truck drivers, offering tools and resources to improve weight, energy, and overall well-being. It focuses on practical habits for life on the road, including nutrition, fitness, and mental health.

**Highlights:** Daily tracking tools, Quick workouts, Health reminders, Personalized screening guides, Nutrition, fitness, and lifestyle challenges, Community access

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

**In-app purchases:** none


## Frequently asked questions

### Is PROOF + free?

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

### Is Project 61 free?

Project 61 is free to download, with no in-app purchases.

### Which has better reviews, PROOF + or Project 61?

Project 61 is rated higher. PROOF + averages 4.6 out of 5 from 109 ratings, while Project 61 averages 5.0 from 6 ratings.

### Do PROOF + or Project 61 have ads?

Neither PROOF + nor Project 61 shows ads.

### Which is updated more often, PROOF + or Project 61?

PROOF + ships an update every 10 days, and Project 61 weekly. Most recently, PROOF + was updated on November 3, 2026 and Project 61 on November 4, 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.*