# Quail Tools vs Mud fluid

The clearest difference is in-app purchases: Quail Tools at none against Mud fluid's 3. Quail Tools also leads on review sentiment (100% vs 77%) and iOS requirement (12.0 vs 16.1). Mud fluid's advantage is update cadence (every 2 weeks vs every 5 weeks). On price, ads and device support there is nothing between them.

Both are free to download. Mud fluid sells 3 one-off in-app purchases. Quail Tools asks for nothing beyond the download.

Quail Tools ships an update every 5 weeks, Mud fluid every 2 weeks. The most recent releases landed on June 1, 2026 and June 24, 2026 respectively.

## The numbers

| Metric | Quail Tools | Mud fluid |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (22 ratings)](https://appshunter.io/ios/app/quail-tools/id1279372123/reviews)** | — |
| Number of ratings | **22** | — |
| Positive reviews | **100.0% of reviews** | 76.9% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 50 MB | 9 MB |
| Requires iOS | **12.0** | 16.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Austin Angelle](https://appshunter.io/developer/1801766276) | [Dmitry Pavlov](https://appshunter.io/developer/1582369829) |

## What reviewers say

### Quail Tools

[App page](https://appshunter.io/ios/app/quail-tools/id1279372123)

Access essential specifications for Tubulars, BOPs, and API Casing offline. View detailed data like tool joint OD, make-up torque, and pressure ratings. Share spec sheets when an internet connection is available.

**Highlights:** Offline access to Tubular and BOP specs, API Casing General Information table, Detailed spec sheets for equipment, Shareable spec sheets (online), Save spec sheets to device, Tool joint OD, ID, torque, tensile, BOP pressure rating, bonnet type, operating data

**Features:** macOS Compatibility

**In-app purchases:** none


### Mud fluid

[App page](https://appshunter.io/ios/app/mud-fluid/id1582369827)

This app assists mud engineers with rapid calculations for wellbore flushing, including time and volume. It supports drilling intervals like surface casing and production casing, and can also compute solution weight and dilution. Metric units are currently available, with imperial units planned for a future update.

**Highlights:** Wellbore flushing time and volume calculation, Supports drilling intervals, Solution weight calculation, Dilution calculation, Metric units support

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tips | $0.99 | one-time |
| For cookies | $0.99 | one-time |
| For coffee | $4.99 | one-time |


## Frequently asked questions

### Is Quail Tools free?

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

### Is Mud fluid free?

Mud fluid is free to download, with in-app purchases available.

### Do Quail Tools or Mud fluid have ads?

Neither Quail Tools nor Mud fluid shows ads.

### Which is updated more often, Quail Tools or Mud fluid?

Quail Tools ships an update every 5 weeks, and Mud fluid every 2 weeks. Most recently, Quail Tools was updated on June 1, 2026 and Mud fluid on June 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.*