# Halliburton eRedBook® Mobile vs OpsFlo

The clearest difference is update cadence: OpsFlo at every 5 weeks against Halliburton eRedBook® Mobile's every 25 months. Halliburton eRedBook® Mobile's advantage is iOS requirement (13.0 vs 16.1). 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.

Halliburton eRedBook® Mobile ships an update every 25 months, OpsFlo every 5 weeks. The most recent releases landed on October 26, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Halliburton eRedBook® Mobile | OpsFlo |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.8 (32 ratings)](https://appshunter.io/ios/app/halliburton-eredbook-mobile/id507496941/reviews)** | — |
| Number of ratings | **32** | — |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 25 months | **Every 5 weeks** |
| Monetization | Free | — |
| Size | 44 MB | 37 MB |
| Requires iOS | **13.0** | 16.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Halliburton](https://appshunter.io/developer/401718908) | [IndoGlobus](https://appshunter.io/developer/1547429564) |

## What reviewers say

### Halliburton eRedBook® Mobile

[App page](https://appshunter.io/ios/app/halliburton-eredbook-mobile/id507496941)

This app provides essential data and calculators for oil and gas well calculations. Access key dimensions, strengths, and specifications for tubulars to quickly determine volumes and capacities. Supports multiple unit systems for flexible calculations.

**Highlights:** Instant access to pipe dimensions and strengths, Quickly calculate capacity and annulus volumes, View volume measurements in Metric or Imperial units, Calculate total volumes in various units, Calculate volume per depth, Copy results with a single click

**Features:** macOS Compatibility

**In-app purchases:** none


### OpsFlo

[App page](https://appshunter.io/ios/app/opsflo/id1547429562)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Halliburton eRedBook® Mobile free?

Halliburton eRedBook® Mobile is free to download, with no in-app purchases.

### Is OpsFlo free?

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

### Do Halliburton eRedBook® Mobile or OpsFlo have ads?

Neither Halliburton eRedBook® Mobile nor OpsFlo shows ads.

### Which is updated more often, Halliburton eRedBook® Mobile or OpsFlo?

Halliburton eRedBook® Mobile ships an update every 25 months, and OpsFlo every 5 weeks. Most recently, Halliburton eRedBook® Mobile was updated on October 26, 2026 and OpsFlo on October 25, 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.*