# PSO Mobile vs Proof

The clearest difference is ratings volume: Proof at 609 against PSO Mobile's 19. Proof also leads on rating (4.5 vs 4.3). 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.

Proof holds the better App Store score, 4.5 against 4.3. That said, the two scores are not equally well evidenced: Proof has 609 ratings behind it against 19, so its average is the more settled of the two.

PSO Mobile ships an update every 2 months, Proof every 4 weeks. The most recent releases landed on September 18, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | PSO Mobile | Proof |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (19 ratings)](https://appshunter.io/ios/app/pso-mobile/id916811927/reviews) | **[4.5 (609 ratings)](https://appshunter.io/ios/app/proof-process-server/id1322698675/reviews)** |
| Number of ratings | 19 | **609** |
| Positive reviews | — | 51.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 weeks** |
| Monetization | Free | Free |
| Size | 10 MB | 169 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ProVest LLC](https://appshunter.io/developer/916811926) | [Proof Technology, Inc.](https://appshunter.io/developer/1322698674) |

## What reviewers say

### PSO Mobile

[App page](https://appshunter.io/ios/app/pso-mobile/id916811927)

This business tool helps process servers capture essential service and non-service details, including GPS coordinates and photos. It guides users with county, state, and client-specific rules to ensure accurate data collection for their work.

**Highlights:** GPS coordinate capture, Photo capture, Client-specific rules, County and state rule adherence, Service and non-service detail logging

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

**In-app purchases:** none


### Proof

[App page](https://appshunter.io/ios/app/proof-process-server/id1322698675)

This app streamlines the process serving workflow for professionals. It offers intuitive submission, real-time tracking, secure document management, and direct communication with clients. Designed for efficiency and compliance, it helps users serve documents accurately and faster.

**Highlights:** Streamlined serve attempt submissions, Enhanced visibility of special requirements, State law integration and reminders, Real-time job tracking, Secure document management, Instant notifications, Seamless client communication

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

**In-app purchases:** none

**What reviewers like**

- ⭐ Game-changer for workflow
- 👍 Easy to navigate and use
- ✅ Organized assignments and clear communication
- 💯 Professional and accurate
- 🚀 Efficient workflow

**What reviewers complain about**

- 🐌 Slow loading times
- 🐛 App crashes frequently
- ⚠️ Offline updates removed
- ❌ Poor job instructions and hidden fees
- 📉 Declining pay and fewer jobs

**Reported bugs**

- App loads too slow
- App crashes instantly or shows black/white screen
- App requires location services even when enabled
- App doesn't allow recording attempts
- App shows partial client details and won't scroll

**Requested features**

- Route plans for servers
- More organized job listings
- Ability to log in on multiple phones
- Automatic serve acceptance within a mile limit
- Group status updates


## Frequently asked questions

### Is PSO Mobile free?

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

### Is Proof free?

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

### Which has better reviews, PSO Mobile or Proof?

Proof is rated higher. PSO Mobile averages 4.3 out of 5 from 19 ratings, while Proof averages 4.5 from 609 ratings.

### Do PSO Mobile or Proof have ads?

Neither PSO Mobile nor Proof shows ads.

### Which is updated more often, PSO Mobile or Proof?

PSO Mobile ships an update every 2 months, and Proof every 4 weeks. Most recently, PSO Mobile was updated on September 18, 2026 and Proof on September 22, 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.*