# WellCalc vs Kyanite Pro

WellCalc and Kyanite Pro are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. WellCalc sells 2 in-app purchases, starting at $4.99 per month and Kyanite Pro sells 7 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

WellCalc ships an update weekly, Kyanite Pro every 8 days. Both last shipped on October 25, 2026.

## The numbers

| Metric | WellCalc | Kyanite Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/kyanite-pro/id6802395850/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Weekly** | Every 8 days |
| Monetization | — | Freemium |
| Size | 13 MB | 30 MB |
| Requires iOS | 18.0 | 18.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Ryan Tinklepaugh](https://appshunter.io/developer/1883444651) | [Mike Haynes](https://appshunter.io/developer/6802395852) |

## What reviewers say

### WellCalc

[App page](https://appshunter.io/ios/app/wellcalc/id6761081416)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| WellCalc Pro Monthly | $4.99 | per month |
| WellCalc Pro Yearly | $29.99 | per year |


### Kyanite Pro

[App page](https://appshunter.io/ios/app/kyanite-pro/id6802395850)

This app offers a suite of offline drilling calculators and reference tools for oil and gas professionals. It includes features for mud engineers, cementers, and directional drillers, with options to share data with crews. A free tier provides basic tools, while a subscription unlocks advanced calculators and job sheets.

**Highlights:** Offline drilling calculators, Mud, cement, and directional drilling tools, Field notes and reference charts, Crew data sharing, Kill sheet and cement job sheet, Chemical inventory management

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kyanite Pro Monthly | $9.99 | per month |
| Kyanite Ultra Monthly | $20.00 | per month |
| Kyanite Pro Yearly | $50.00 | per year |
| Kyanite Ultra Yearly | $119.99 | per year |
| Starter Pack | $2.99 | one-time |
| Value Pack | $4.99 | one-time |
| Professional Pack | $9.99 | one-time |


## Frequently asked questions

### Is WellCalc free?

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

### Is Kyanite Pro free?

Kyanite Pro is free to download, with in-app purchases available.

### Do WellCalc or Kyanite Pro have ads?

Neither WellCalc nor Kyanite Pro shows ads.

### Which is updated more often, WellCalc or Kyanite Pro?

WellCalc ships an update weekly, and Kyanite Pro every 8 days. Most recently, WellCalc was updated on October 25, 2026 and Kyanite Pro 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.*