# Directional Survey Methods vs CentraDesign Lite

The clearest difference is update cadence: CentraDesign Lite at every 21 months against Directional Survey Methods's every 50 months. CentraDesign Lite also leads on iOS requirement (8.0 vs 12.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Directional Survey Methods ships an update every 50 months, CentraDesign Lite every 21 months. The most recent releases landed on October 1, 2026 and October 3, 2026 respectively.

## The numbers

| Metric | Directional Survey Methods | CentraDesign Lite |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/centradesign-lite/id1157895841/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 50 months | **Every 21 months** |
| Monetization | — | Free |
| Size | 7 MB | 13 MB |
| Requires iOS | 12.0 | **8.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Carlos Moura](https://appshunter.io/developer/407501202) | [Pegasus Vertex, Inc.](https://appshunter.io/developer/954796003) |

## What reviewers say

### Directional Survey Methods

[App page](https://appshunter.io/ios/app/directional-survey-methods/id1130800392)

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

**In-app purchases:** none


### 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


## Frequently asked questions

### Is Directional Survey Methods free?

Directional Survey Methods is free to download, with no in-app purchases.

### Is CentraDesign Lite free?

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

### Do Directional Survey Methods or CentraDesign Lite have ads?

Neither Directional Survey Methods nor CentraDesign Lite shows ads.

### Which is updated more often, Directional Survey Methods or CentraDesign Lite?

Directional Survey Methods ships an update every 50 months, and CentraDesign Lite every 21 months. Most recently, Directional Survey Methods was updated on October 1, 2026 and CentraDesign Lite on October 3, 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.*