---
title: "ResToolbox3 - Reviews, Revenue and Downloads in Australia | Apple App Store"
description: "ResToolbox3 is a petroleum engineering calculator built for engineers who need answers fast - on a rig floor, in a meeting, or on a plane. PVT analysis, nodal analysis, gas hydrate prediction, product"
---

# ResToolbox3 — Australia
> Petroleum Engineering Tools

![ResToolbox3 App Icon](https://is1-ssl.mzstatic.com/image/thumb/Purple211/v4/e5/a3/b2/e5a3b2ee-676d-d7a6-40d0-a6dbc235fea9/AppIcon-0-0-1x_U007emarketing-0-8-0-85-220.png/434x0w.png)

**Developer:** [Mark Burgoyne](https://apptail.io/developer/mark-burgoyne-cCMd)
**Category:** Utilities
**Rating:** 5.0/5 (3 ratings)
**Price:** Free
**Bundle ID:** com.mwburgoyne.ResToolbox3
**Store:** Apple App Store
**Country:** Australia
**Version:** 3.0.5 (released 2026-04-19)
**Original Release:** 2026-03-11
**Languages:** English

**App Store Link:** [Download on Apple App Store](https://apps.apple.com/au/app/app/id6759464322)
**AppTail Page:** [https://apptail.io/app/restoolbox3-ntRy/australia](https://apptail.io/app/restoolbox3-ntRy/australia)

## ResToolbox3 Description
ResToolbox3 is a petroleum engineering calculator built for engineers who need answers fast - on a rig floor, in a meeting, or on a plane. PVT analysis, nodal analysis, gas hydrate prediction, production forecasting, volumetric calculations, and well testing, all from your iPhone or iPad.

FLUID PROPERTIES (PVT)
- Gas PVT: Z-factor, viscosity, compressibility, pseudo-pressure, water content, and thermal properties via 5-component Peng-Robinson EOS. Handles CO2, H2S, N2, H2, and hydrocarbon mixtures including pure and high-concentration cases
- Oil PVT: Bubble point, solution GOR, formation volume factor, viscosity, and compressibility using Valko-McCain and Velarde correlations. Three solve modes with scaling factors for GOR and viscosity
- Brine & Rock: Soreide-Whitson mutual solubility with Spivey brine correlations. Gas composition from Gas PVT flows through automatically

GAS HYDRATES
- Hydrate formation prediction via Motiee and Towler-Mokhatab correlations
- Thermodynamic inhibitor dosing for MEG, DEG, TEG, methanol, and ethanol
- Interactive P-T stability curves with inhibited and uninhibited envelopes
- Water content mass balance between reservoir and operating conditions

NODAL ANALYSIS
- Gas and oil well inflow performance (IPR) with non-Darcy flow and Vogel
- Outflow performance (VLP) via four methods: Woldesemayat-Ghajar, Hagedorn-Brown, Beggs & Brill, and Gray
- 3x3 sensitivity matrix or real-time Explorer mode with interactive sliders
- Water cut modelling with physics-based two-phase flow
- Injection well support

PRODUCTION FORECASTING
- Single-well decline profiles: hyperbolic, exponential, and harmonic
- Two-stage decline with continuous slope matching
- Multi-well field development with drilling schedule, plateau constraints, and abandonment rate

VOLUMETRICS
- Deterministic OGIP and OOIP with combined gas/oil mode
- Monte Carlo probabilistic analysis with Normal, Log-Normal, and Triangular distributions
- Exceedance probability curves with P90, P50, and P10 reporting

WELL TEST & TOOLS
- Choke flow: gas mode (Gilbert, Norsok, TAM, SLB) and oil mode (Gilbert, Ros, Baxendell, Achong)
- AGA-3 orifice metering for gas and ISO 5167 for liquid
- Gas flowline pressure drop: 30-segment Darcy-Weisbach with PR-EOS properties at each segment, plus Weymouth and Panhandle B empirical methods
- Petrophysics: Archie equation with density, sonic, and direct porosity methods, Pickett plot
- Gas heating value and composition
- Pipe capacities database (tubing, casing, drill pipe)
- Unit converter with HC equivalents, reciprocal GOR/CGR, and density-gradient conversions

DESIGNED FOR THE FIELD
- iPhone-first interface with iPad responsive layouts
- Oilfield and Metric unit systems with one-tap toggle
- Share results and charts via email or messaging
- Available in English, Norwegian, French, Chinese, Spanish, and Arabic
- Works fully offline - no internet connection required
- PVT properties flow between modules automatically

All calculations use published, peer-reviewed methods from SPE literature and industry-standard references. No proprietary correlations, no curve-fitted shortcuts. Tabular data exports let you paste results directly into Excel or Google Sheets.

## ResToolbox3 Screenshots
- [Screenshot 1](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/93/d8/83/93d88384-067f-3b7b-06d7-20e04203057d/Simulator_Screenshot_-_iPhone_16_Pro_Max_-_2026-03-21_at_11.21.01.png/1320x2868.png)
- [Screenshot 2](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/1c/7c/a3/1c7ca328-4a59-7160-8c2c-6678630b3888/Simulator_Screenshot_-_iPhone_16_Pro_Max_-_2026-03-21_at_11.21.21.png/1320x2868.png)
- [Screenshot 3](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/f1/97/18/f19718ab-e62d-9d87-8bb4-0dddc17798d0/Simulator_Screenshot_-_iPhone_16_Pro_Max_-_2026-03-21_at_11.22.10.png/1320x2868.png)
- [Screenshot 4](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/d8/c2/c6/d8c2c607-cace-54f5-2f3a-bca7a9c1d2ef/Simulator_Screenshot_-_iPhone_16_Pro_Max_-_2026-03-21_at_11.22.59.png/1320x2868.png)
- [Screenshot 5](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/5b/10/d7/5b10d7be-e83d-50d0-a6c3-c1adbcee7dca/Simulator_Screenshot_-_iPhone_16_Pro_Max_-_2026-03-21_at_11.23.42.png/1320x2868.png)
- [Screenshot 6](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource221/v4/4e/cf/9b/4ecf9be0-a166-f2d5-146c-564228e1c927/Simulator_Screenshot_-_iPhone_16_Pro_Max_-_2026-03-21_at_11.24.33.png/1320x2868.png)
- [Screenshot 7](https://is1-ssl.mzstatic.com/image/thumb/PurpleSource211/v4/0f/ce/b5/0fceb57d-8f65-7cc9-7723-bff65f8860d4/Simulator_Screenshot_-_iPhone_16_Pro_Max_-_2026-03-21_at_11.25.23.png/1320x2868.png)

## ResToolbox3 Rating Breakdown in Australia
- 5 stars: 3 (100%)
- 4 stars: 0 (0%)
- 3 stars: 0 (0%)
- 2 stars: 0 (0%)
- 1 stars: 0 (0%)

## ResToolbox3 Reviews in Australia

### ***** "A great tool for new venture evaluations"
Good tool with all the features some RE would require.
-- Alvinmoe, 2026-03-15

[View all ResToolbox3 reviews and detailed analytics on AppTail](https://app.apptail.io/signup?utm_campaign=ai-crawl&utm_content=reviews)




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## ResToolbox3 Available In
- [Australia](https://apptail.io/app/restoolbox3-ntRy/australia)
- [Argentina](https://apptail.io/app/restoolbox3-ntRy/argentina)
- [Norway](https://apptail.io/app/restoolbox3-ntRy/norway)

---

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