# CentraDesign Lite vs DrillOut Calcs

The clearest difference is update cadence: DrillOut Calcs at every 3 weeks against CentraDesign Lite's every 21 months. CentraDesign Lite's advantage is iOS requirement (8.0 vs 18.5). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for CentraDesign Lite against 5.0 for DrillOut Calcs. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

CentraDesign Lite ships an update every 21 months, DrillOut Calcs every 3 weeks. The most recent releases landed on November 2, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | CentraDesign Lite | DrillOut Calcs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/centradesign-lite/id1157895841/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/drillout-calcs/id6754534235/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 13 MB | 3 MB |
| Requires iOS | **8.0** | 18.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Pegasus Vertex, Inc.](https://appshunter.io/developer/954796003) | [Cody Martin](https://appshunter.io/developer/1796736420) |

## What reviewers say

### CentraDesign Lite

[App page](https://appshunter.io/ios/app/centradesign-lite/id1157895841)

This utility app calculates casing standoff and clearance for oil and gas wells. It considers various factors like pipe sizes, inclination, buoyancy, and side force. Users can visualize casing deflection in 2D and 3D.

**Highlights:** Bow spring and rigid centralizer database, Centralizer and casing database, Calculates casing standoff and clearance, Considers buoyancy and side force, 2D and 3D casing deflection view

**Features:** macOS Compatibility

**In-app purchases:** none


### DrillOut Calcs

[App page](https://appshunter.io/ios/app/drillout-calcs/id6754534235)

This app offers essential calculations for oilfield professionals performing post-frac plug drill-outs. It provides quick and accurate tools to verify flow balance, annular velocity, sweep efficiency, and surface return timing in real time, designed for simplicity and speed.

**Highlights:** Post-frac plug drill-out calculations, Flow balance verification, Annular velocity calculation, Sweep efficiency assessment, Surface return timing, Real-time data verification

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

**In-app purchases:** none


## Frequently asked questions

### Is CentraDesign Lite free?

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

### Is DrillOut Calcs free?

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

### Which has better reviews, CentraDesign Lite or DrillOut Calcs?

CentraDesign Lite and DrillOut Calcs are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do CentraDesign Lite or DrillOut Calcs have ads?

Neither CentraDesign Lite nor DrillOut Calcs shows ads.

### Which is updated more often, CentraDesign Lite or DrillOut Calcs?

CentraDesign Lite ships an update every 21 months, and DrillOut Calcs every 3 weeks. Most recently, CentraDesign Lite was updated on November 2, 2026 and DrillOut Calcs on November 5, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*