# Strike and Dip > Geological measurement and mapping tool for field data collection. (iPhone/iPad app by Hunt Mountain Software.) - Source: https://appshunter.io/ios/app/strike-and-dip/id335517528 (this page in markdown: same URL + `.md`) - Developer: [Hunt Mountain Software](https://appshunter.io/developer/328710008) - Category: Navigation, Utilities - Price: $4.99 - Rating: 5.00/5 from 2 App Store ratings · 12 written reviews indexed - Age rating: 4+ - Requires: iOS 26.0 · 11 MB - Languages: American English, French (France), German (Germany), European Spanish - Released: 2009-10-31 - Data updated: 2026-08-31 - Monetization: paid - User reviews in markdown: https://appshunter.io/ios/app/strike-and-dip/id335517528/reviews.md ## What is Strike and Dip? Strike and Dip turns your iPhone into a pocket transit. Take strike & dip measurements, bearings, plunge, and all that geological goodness, while simultaneously getting your latitude, longitude, and elevation. Save your measurements as notes, and add photos to your notes. Now also with maps (geological in the U.S. and some other parts of the world) that show the locations of all your saved data. Customizable to how you work: choose between azimuth and quadrant formats for bearings, three formats for coordinates, meters and feet, and three different formats for strike and dip. ## Key features - Record strike, dip, and plunge - Get real-time GPS coordinates - Save measurements with notes and photos - View data on integrated maps - Customizable measurement formats - Supports azimuth and quadrant bearings ## Recent user reviews (10 of 12) All indexed reviews: https://appshunter.io/ios/app/strike-and-dip/id335517528/reviews.md ### 1/5 — Doesn’t work *2018-06-15* The app doesn’t work at all. ### 3/5 — Decent for field work *2017-04-24* This app is useful for in the field measurements for Strike and dip with exceptional ease. However, finding where you measured your measurements is a right pain as you cannot search for the area or click on your recording to jump to the locality. Also, the large circles are obscuring and offer no visual help if, let's say, you wanted to share your work with another colleague. Overall decent, just interface and visual issues that bring it down from a 5 ### 5/5 — Rock nerd *2012-07-21* Amazing App! Easy to use and precise. I am blown away! ### 1/5 — Terrible app! *2011-04-23* The numbers this app gives me don't seem to have any relation to reality. The strike and dip numbers I get are wildly off from what they should be. I have run the calibration, yet the app still thinks my phone is level when I have it tilted up about 30°. I just can't figure out where this app gets its numbers! It would be nice to rely on this rather than carry a Brunton, I need accuracy to make it useful. ### 1/5 — the worst f the strike dip apps *2011-04-04* I have tried all thre Strike Dip apps available in the app store. THe other two work well...this one does not give a sensible reading on my iphone 4. The bearing readings are correct, but the strike and dip are not related to any orientation of the phone. Get one of the other ones instead of this one. ### 5/5 — Changed my rating to five stars *2010-06-04* Updated Review: Now that you can select feet instead of meters, this get five stars! Very handy. Excellent app, but I would like to see the settings allow you to change from meters to feet. It seems that would be easy enough, but I am still hoping to see this happen. Until then, four stars only. ### 1/5 — Used to Be Good *2010-05-05* I used this application...not anymore. The upgrade will no longer work on my 3G. Must now have 3GS. Talk about planned obsolescence. ### 5/5 — i am using it with my brunton and love it *2010-02-24* Awesome app. So SOOO close to my transit. I have a new 3gs and it works good. No issues here. ### 1/5 — Don't Bother *2010-02-21* I bought this before the recent upgrade and I couldn't get it to work. Now after the upgrade I find out that this app isn't compatible with my phone. The developers never indicated which phones this app is for or what additional apps are needed to make this work. ### 5/5 — Perfect *2010-02-12* App works great, have field tested it head to head againt brunton and this product delivers. Don't get issue other person complained about, their phone is peobably broken. You don't "calibrate" a gps driven compass or the phones internal orientation sensors. ## Frequently asked questions about Strike and Dip ### What geological measurements can Strike and Dip record? Strike and Dip allows you to record strike and dip measurements, bearings, and plunge angles. It also provides real-time latitude, longitude, and elevation data. ### Can I save my measurements with Strike and Dip? Yes, you can save your measurements as notes and attach photos to them. These saved data points can then be viewed on integrated maps. ### Does Strike and Dip have maps? Yes, Strike and Dip includes maps that show the locations of all your saved data. Geological maps are available for the U.S. and some other regions. ### How customizable is Strike and Dip? Strike and Dip is highly customizable. You can choose between azimuth and quadrant formats for bearings, three formats for coordinates, and three different formats for strike and dip measurements. Units can also be set to meters or feet. ### What devices does Strike and Dip support? Strike and Dip is available for iPhone and iPad devices. ### What is the price of Strike and Dip? Strike and Dip is a paid application, priced at $4.99. ### How often is Strike and Dip updated? The latest version, 4.8, was last updated on December 8, 2024. The app was originally released on October 31, 2009, indicating a history of ongoing development. ### Is Strike and Dip suitable for younger users? Strike and Dip has an age rating of 4+, making it suitable for younger users. The app's functionality is geared towards geological field work. ## Version history (last 5 releases) ### 4.9 — 2026-07-25 • Updated for iOS 26 • Bug fixes ### 4.8 — 2024-12-08 • Updated for iOS 18 • Bug fixes ### 4.7 — 2023-02-18 • Locations of images added to notes are now saved • Added Lock Screen widget - open Strike and Dip right from the Lock Screen • Updated for iOS 16 ### 4.6 — 2021-11-06 • Updated for iOS 15 • Updated Dropbox support • User interface improvements, especially to the map and bearings ### 4.5 — 2020-11-25 • Updated for iOS 14 • User interface improvements • Bug fixes ## Apps similar to Strike and Dip | App | Rating | Price | Category | | --- | --- | --- | --- | | [HK Traffic](https://appshunter.io/ios/app/hk-traffic/id1165961260) | 4.7 (15) | Free | Navigation | | [Virtual Compass º](https://appshunter.io/ios/app/virtual-compass/id1419811000) | 4.6 (305) | Free | Navigation | | [TaRastreado](https://appshunter.io/ios/app/tarastreado/id1117074980) | 1.0 (1) | Free | Navigation | | [I'm here](https://appshunter.io/ios/app/im-here/id1124773280) | 4.0 (1) | Free | Navigation | | [巴士報站](https://appshunter.io/ios/app/id1122920020) | 2.5 (11) | Free | Navigation | | [AutoGPS](https://appshunter.io/ios/app/autogps/id1164684260) | — | Free | Navigation | ## More apps by Hunt Mountain Software - [Coordinates](https://appshunter.io/ios/app/coordinates/id328710005) - [Coordinates Lite](https://appshunter.io/ios/app/coordinates-lite/id357411098) - [Mancos](https://appshunter.io/ios/app/mancos/id541570878) - [Taxon for ecology](https://appshunter.io/ios/app/taxon-for-ecology/id1091005506) - [Jake for stratigraphy](https://appshunter.io/ios/app/jake-for-stratigraphy/id1486090789) All apps by Hunt Mountain Software: https://appshunter.io/developer/328710008 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-31.*