# Field Operator vs ATI SEMS

The clearest difference is update cadence: ATI SEMS at every 9 days against Field Operator's every 2 months. ATI SEMS also leads on iOS requirement (12.2 vs 14.0). 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.

Field Operator ships an update every 2 months, ATI SEMS every 9 days. The most recent releases landed on October 15, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Field Operator | ATI SEMS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/field-operator-exp-edition/id1541708396/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 9 days** |
| Monetization | Free | — |
| Size | 159 MB | 68 MB |
| Requires iOS | 14.0 | **12.2** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [P2 Energy Solutions](https://appshunter.io/developer/1056792970) | [Agilink Technologies, Inc.](https://appshunter.io/developer/1364124321) |

## What reviewers say

### Field Operator

[App page](https://appshunter.io/ios/app/field-operator-exp-edition/id1541708396)

Streamline field operations with this app, designed for monitoring daily readings, run tickets, well tests, and inspections. It integrates with route surveillance for live SCADA feeds and office collaboration on task prioritization and daily planning.

**Highlights:** Monitor daily readings, Enter run tickets, Record well tests, Conduct inspections, View live SCADA feeds, Collaborate with office, Plan daily journeys

**In-app purchases:** none


### ATI SEMS

[App page](https://appshunter.io/ios/app/ati-sems/id6752559411)

**In-app purchases:** none


## Frequently asked questions

### Is Field Operator free?

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

### Is ATI SEMS free?

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

### Do Field Operator or ATI SEMS have ads?

Neither Field Operator nor ATI SEMS shows ads.

### Which is updated more often, Field Operator or ATI SEMS?

Field Operator ships an update every 2 months, and ATI SEMS every 9 days. Most recently, Field Operator was updated on October 15, 2026 and ATI SEMS on October 16, 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.*