# ResToolbox3 vs 石油助手

The clearest difference is iOS requirement: 石油助手 at 13.0 against ResToolbox3's 15.0. 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.

ResToolbox3 ships an update every 6 days, 石油助手 every 2 weeks. The most recent releases landed on October 8, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | ResToolbox3 | 石油助手 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/restoolbox3/id6759464322/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 2 weeks |
| Monetization | Free | — |
| Size | 25 MB | 36 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [MobileReservoir](https://appshunter.io/developer/497057811) | [Sichuan Jupai Technology Co., Ltd.](https://appshunter.io/developer/1896742899) |

## What reviewers say

### ResToolbox3

[App page](https://appshunter.io/ios/app/restoolbox3/id6759464322)

This petroleum engineering calculator provides rapid answers for engineers in the field or office. It offers comprehensive tools for fluid properties, gas hydrate prediction, nodal analysis, production forecasting, volumetrics, and well testing, all accessible offline.

**Highlights:** Fluid properties (PVT) analysis, Gas hydrate prediction, Nodal analysis for wells, Production forecasting, Volumetric calculations, Well test analysis, Offline functionality

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

**In-app purchases:** none


### 石油助手

[App page](https://appshunter.io/ios/app/id6772124729)

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

**In-app purchases:** none


## Frequently asked questions

### Is ResToolbox3 free?

ResToolbox3 is free to download, with no in-app purchases.

### Is 石油助手 free?

石油助手 is free to download, with no in-app purchases.

### Do ResToolbox3 or 石油助手 have ads?

Neither ResToolbox3 nor 石油助手 shows ads.

### Which is updated more often, ResToolbox3 or 石油助手?

ResToolbox3 ships an update every 6 days, and 石油助手 every 2 weeks. Most recently, ResToolbox3 was updated on October 8, 2026 and 石油助手 on October 11, 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.*