# GreaseBook vs Field Operator

The clearest difference is rating: Field Operator at 4.5 against GreaseBook's 3.9. Field Operator also leads on iOS requirement (9.0 vs 15.0). GreaseBook's advantage is update cadence (every 11 days vs every 2 months) and ratings volume (63 vs 2). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Field Operator holds the better App Store score, 4.5 against 3.9. That said, the two scores are not equally well evidenced: GreaseBook has 63 ratings behind it against 2, so its average is the more settled of the two.

GreaseBook ships an update every 11 days, Field Operator every 2 months. The most recent releases landed on October 13, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | GreaseBook | Field Operator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (63 ratings)](https://appshunter.io/ios/app/greasebook/id1035217729/reviews) | **[4.5 (2 ratings)](https://appshunter.io/ios/app/field-operator/id1436635281/reviews)** |
| Number of ratings | **63** | 2 |
| Positive reviews | 85.2% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 11 days** | Every 2 months |
| Monetization | Free | Free |
| Size | 220 MB | 104 MB |
| Requires iOS | 15.0 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [GreaseBook, LLC](https://appshunter.io/developer/543622294) | [P2 Energy Solutions](https://appshunter.io/developer/1056792970) |

## What reviewers say

### GreaseBook

[App page](https://appshunter.io/ios/app/greasebook/id1035217729)

Streamline oil and gas production reporting with this mobile solution. Operators can collect data, submit reports, and communicate with field teams in real-time. Pumpers can eliminate paper reports and ensure timely payments by submitting digital updates.

**Highlights:** Field data collection, Digital report submission, Real-time communication, Photo capture of run tickets, Organized production data, Eliminate paper reports

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

**In-app purchases:** none


### Field Operator

[App page](https://appshunter.io/ios/app/field-operator/id1436635281)

This app streamlines remote oil and gas operations by enabling field operators to capture and manage data from hundreds of wells and equipment. It facilitates quick data validation, image capture, and seamless collaboration between field teams and the back office.

**Highlights:** Field data capture, Operations management, Remote well management, Equipment management, Image capture, Team collaboration

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GreaseBook free?

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

### Is Field Operator free?

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

### Which has better reviews, GreaseBook or Field Operator?

Field Operator is rated higher. GreaseBook averages 3.9 out of 5 from 63 ratings, while Field Operator averages 4.5 from 2 ratings.

### Do GreaseBook or Field Operator have ads?

Neither GreaseBook nor Field Operator shows ads.

### Which is updated more often, GreaseBook or Field Operator?

GreaseBook ships an update every 11 days, and Field Operator every 2 months. Most recently, GreaseBook was updated on October 13, 2026 and Field Operator on September 24, 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.*