# Drillstring Toolbox vs KY UFO

The clearest difference is review sentiment: Drillstring Toolbox at 100% against KY UFO's 25%. Drillstring Toolbox also leads on rating (3.3 vs 2.5). KY UFO's advantage is update cadence (monthly vs every 39 months) and ratings volume (205 vs 3). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Drillstring Toolbox holds the better App Store score, 3.3 against 2.5. That said, the two scores are not equally well evidenced: KY UFO has 205 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 100% of Drillstring Toolbox's written reviews are positive against 25% of KY UFO's.

Drillstring Toolbox ships an update every 39 months, KY UFO monthly. The most recent releases landed on October 7, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Drillstring Toolbox | KY UFO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (3 ratings)](https://appshunter.io/ios/app/drillstring-toolbox/id1068605189/reviews)** | [2.5 (205 ratings)](https://appshunter.io/ios/app/ky-ufo/id1621716933/reviews) |
| Number of ratings | 3 | **205** |
| Positive reviews | **100.0% of reviews** | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 39 months | **Monthly** |
| Monetization | Free | Free |
| Size | 1 MB | 133 MB |
| Requires iOS | 14.0 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bureau Veritas North America, Inc.](https://appshunter.io/developer/1770295442) | [shenzhen cooingdv technology co.,ltd.](https://appshunter.io/developer/1255741645) |

## What reviewers say

### Drillstring Toolbox

[App page](https://appshunter.io/ios/app/drillstring-toolbox/id1068605189)

This utility app calculates drill-stem load capacities based on API connections and sizes. It also provides makeup torque and tensile capacity, as well as tensile and torsion capacities for drill pipe tubes.

**Highlights:** Drill-stem load capacity calculation, API connection selection, Makeup torque calculation, Tensile capacity calculation, Drill pipe tube capacities

**Features:** macOS Compatibility

**In-app purchases:** none


### KY UFO

[App page](https://appshunter.io/ios/app/ky-ufo/id1621716933)

Control toy unmanned aerial vehicles and view captured images. Offers a variety of innovative gameplay modes for enhanced user experience.

**Highlights:** Toy UAV control, Picture display, Multiple gameplay modes, Innovative play options

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to set up
- 🚀 Works as expected
- 💡 Can take pictures and videos

**What reviewers complain about**

- 🐛 App doesn't connect to drone
- 🔋 Short battery life
- 🔍 Poor camera quality
- 🤯 Difficult to control
- 🤖 Unstable connection

**Reported bugs**

- App doesn't connect to phone
- Drone flies away uncontrollably
- Buttons and controls don't work

**Requested features**

- Update app for latest iOS versions
- Improve camera quality
- Add more control options


## Frequently asked questions

### Is Drillstring Toolbox free?

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

### Is KY UFO free?

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

### Which has better reviews, Drillstring Toolbox or KY UFO?

Drillstring Toolbox is rated higher. Drillstring Toolbox averages 3.3 out of 5 from 3 ratings, while KY UFO averages 2.5 from 205 ratings.

### Do Drillstring Toolbox or KY UFO have ads?

Neither Drillstring Toolbox nor KY UFO shows ads.

### Which is updated more often, Drillstring Toolbox or KY UFO?

Drillstring Toolbox ships an update every 39 months, and KY UFO monthly. Most recently, Drillstring Toolbox was updated on October 7, 2026 and KY UFO on October 12, 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.*