Comparison

Directional Survey Methods vs ESB Viewer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

Directional Survey Methods

Calculations and Formulas

About

Directional Survey Methods

Features

Read full description

This application uses the formulas to calculate the survey parameters (diff of TVD, N/S, E/W, DLS) between two stations of the methods: 1. Tangential 2. Balanced Tangential 3. Minimum Curvature 4. Radius of Curvature 5. Angle Averaging Also available the formulas of the methods. This app was developed based in existing spreadsheets. There is no comparison with any other software. You can contribute with suggestions for improvements, reporting bugs and spreading it to your friends. Our portfolio for Directional Drilling available on the App Store: - "Directional Drilling" a complete app (building and plotting) with well planning, survey, multi-lateral, etc. - There are also stand-alone applications for Well Planning, Well Survey and Multi-Lateral Wells. - "3D Interpolation" to calculate a survey data between two stations. DISCLAIMER: These tools & materials are provided 'as is' without warranties of any kind, express or implied. Please verify the tools provided by this application by yourself before you use them. Ensure you understand the impact of using these tools. Any use you choose to make of these tools & materials is undertaken by you entirely at your own risk. Thanks

About

ESB Viewer

This application allows users to connect to local Point of Sale (POS) systems. It facilitates access to essential sales data directly from your device.

Highlights

Connect to local POS
Access sales data
Point of Sale integration
Device connectivity

Features

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ESB OMS (ESB Viewer) to connect to local POS

Screenshots

Directional Survey Methods4 screens

Verdict

The call

The clearest difference is update cadence: ESB Viewer at every 2 months against Directional Survey Methods's every 50 months. Directional Survey Methods's advantage is device support (3 vs 1). On price, ads, in-app purchases and iOS requirement there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Directional Survey Methods ships an update every 50 months, ESB Viewer every 2 months. Both last shipped on October 1, 2026.

Scorecard2 real differences · 6 level

Directional Survey Methods versus ESB Viewer: the parameters behind the verdict, then further details
Parameter	Directional Survey Methods	ESB Viewer
Price	Free	Free
Positive reviews	—	50.0% of reviews
Update frequency	Every 50 months	Every 2 months — better
Ads	No	No
In-app purchases	No	No
Monetization	—	Free
Devices	iPhone, iPad, iPod — better	iPad
Requires iOS	12.0	11.0 — better
Further details — not scored
Size	7 MB	10 MB
Age rating	4+	4+
Developer	Carlos Moura	PT Esensi Solusi Buana

In-app purchases

None

Directional Survey Methods

No in-app purchases

None

ESB Viewer

No in-app purchases

Questions

Is Directional Survey Methods free?

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

Is ESB Viewer free?

ESB Viewer is free to download, with no in-app purchases.

Do Directional Survey Methods or ESB Viewer have ads?

Neither Directional Survey Methods nor ESB Viewer shows ads.

Which is updated more often, Directional Survey Methods or ESB Viewer?

Directional Survey Methods ships an update every 50 months, and ESB Viewer every 2 months. Most recently, Directional Survey Methods was updated on October 1, 2026 and ESB Viewer on October 1, 2026.