Comparison

Directional Survey Methods vs COMP Odour Survey

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

WBEA

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

COMP Odour Survey

This app allows the public to report odour events in the Wood Buffalo region. The collected anonymous data helps researchers understand the relationship between odours and ambient air quality, complementing official monitoring station data.

Highlights

Anonymous odour reporting
Contributes to air quality research
Data complements monitoring stations
Supports Wood Buffalo Environmental Association
Community participation in environmental monitoring

Features

Read full description

The information collected is anonymous and will be used for research purposes only. The Wood Buffalo Environmental Association (WBEA) monitors air quality in the Regional Municipality of Wood Buffalo (RMWB). The WBEA is asking the public to participate in its Community Odour Monitoring Program (COMP), which seeks to gain a better understanding on how odour events in the region relate to our ambient air quality. The information you provide will populate a database that will be compared to the data collected at our ambient air monitoring stations throughout the RMWB. If you would like to make a complaint to the Alberta Government about an odour you are experiencing, please call their 24-hour Energy & Environmental Response Line at 1-800-222-6514. Stay informed about COMP and other WBEA work at www.wbea.org

Screenshots

Directional Survey Methods4 screens

COMP Odour Survey4 screens

Verdict

The call

The clearest difference is update cadence: COMP Odour Survey at every 6 months against Directional Survey Methods's every 50 months. Directional Survey Methods's advantage is iOS requirement (12.0 vs 15.6). On price, ads, in-app purchases and device support 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, COMP Odour Survey every 6 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard2 real differences · 6 level

Directional Survey Methods versus COMP Odour Survey: the parameters behind the verdict, then further details
Parameter	Directional Survey Methods	COMP Odour Survey
Price	Free	Free
Positive reviews	—	0.0% of reviews
Update frequency	Every 50 months	Every 6 months — better
Ads	No	No
In-app purchases	No	No
Monetization	—	Free
Devices	iPhone, iPad, iPod — better	iPhone, iPod
Requires iOS	12.0 — better	15.6
Further details — not scored
Size	7 MB	45 MB
Age rating	4+	4+
Developer	Carlos Moura	Wood Buffalo Environmental Association

In-app purchases

None

Directional Survey Methods

No in-app purchases

None

COMP Odour Survey

No in-app purchases

Questions

Is Directional Survey Methods free?

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

Is COMP Odour Survey free?

COMP Odour Survey is free to download, with no in-app purchases.

Do Directional Survey Methods or COMP Odour Survey have ads?

Neither Directional Survey Methods nor COMP Odour Survey shows ads.

Which is updated more often, Directional Survey Methods or COMP Odour Survey?

Directional Survey Methods ships an update every 50 months, and COMP Odour Survey every 6 months. Most recently, Directional Survey Methods was updated on November 2, 2026 and COMP Odour Survey on November 3, 2026.