Comparison

FieldMove Clino vs HTML Previewer

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

Head to head
About

FieldMove Clino

This app transforms your iPhone into a digital compass-clinometer for geological data capture. It allows for efficient measurement of planar and linear features, georeferenced photo and note storage, and offline map support for fieldwork.

Highlights
  • Digital compass-clinometer
  • GPS location and orientation sensors
  • Capture georeferenced photos and notes
  • Offline map support
  • Stereonet display for analysis
  • Draw geological features on basemap
  • Export data as MOVE, CSV, or KMZ
Features
Read full description

FieldMove Clino Features: FieldMove Clino is a digital compass-clinometer for data capture on your iPhone, designed for simplicity in the field, and optimized to use the device’s GPS location and orientation sensors. This geology app will allow you to use your phone as a traditional hand-held bearing compass as well as a digital compass-clinometer for measuring and capturing the orientation of planar and linear features in the field. FieldMove Clino allows you to quickly take large amounts of measurements, making your data set much more statistically valid. You can also capture and store georeferenced digital photographs and text notes. As well as supporting online maps, FieldMove Clino also supports offline maps, so that you can import your own georeferenced basemaps and collect data while disconnected. Data can be exported as MOVE, CSV or KMZ files and then imported directly into FieldMove™, Move™ or other applications like Google Earth. Additional features: • Display geological data on an equal area or equal angle stereonet, allowing you to perform some basic statistical analysis in the field • Draw contacts, faults and outcrops on your chosen basemap to create a realistic geological map • A new expanded library of symbols for customisation of planar and linear features • KMZ export, view your data in Google Earth A more in-depth guide is available on our website: http://www.petex.com/products/move-suite/digital-field-mapping/ NOTE: FieldMove Clino for iPhone will scale up to fit on the iPad and iPad mini. FieldMove Clino is a Petroleum Experts geological field mapping app designed for forward thinking geologists utilising digital data collection. --------------------------------- * The use of GPS devices and smartphones as navigation aids. * Global Positioning System (GPS) devices are commonly used to aid navigation, having grown in popularity over the past decade. Over the last few years, this has extended to smartphones and digital compasses, which are often equipped with GPS functionality. GPS is a valuable aid to navigation during fieldwork, although it is important to keep safety at the forefront, and we draw your attention to the advice given by a number of mountaineering councils: “Everyone heading into the hills needs to learn how to read a map, and be able to navigate effectively with a paper map and traditional magnetic compass, especially in poor visibility”. Petroleum Experts will accept no liability or loss, resulting from the use or misuse of this product.

About

HTML Previewer

Features
Read full description

Open received HTML and ZIP reports, read Markdown notes, and inspect JSON or YAML on iPhone and iPad. Files are processed on your device. Read the content, keep the formatting - View HTML layouts, graphics, and animations. - Read Markdown tables and highlighted code, with one-tap code copying. - Display Markdown math equations and Mermaid diagrams offline. - Browse HTML and Markdown pages inside ZIP reports with local CSS and image assets. - Search within HTML and Markdown, navigate headings, adjust reading appearance, and reopen at your saved reading position. Inspect JSON and YAML - Expand nested objects and arrays, search fields and values, and check highlighted source with line numbers. - Copy values or field paths and jump to the corresponding source line. - View and copy large JSON numeric IDs without rounding their digits. - Locate syntax errors by line and column. YAML also supports multiple documents. Import, organize, and share - Open files from Files, Mail, AirDrop, messaging apps, cloud drives, or other apps. Open/share menu availability depends on iOS and the source app. - Select multiple documents or ZIP packages. Update duplicates, keep both copies, or skip individual files, then review import results. - Paste HTML, Markdown, JSON, or YAML text to create a local preview. - Find saved files by filename, pin frequent documents, and rename display titles. - Share original files or complete ZIP packages. Export HTML and Markdown previews as PDF. - Try the built-in HTML, Markdown, JSON, YAML, and ZIP samples. Supported extensions: .html, .htm, .md, .markdown, .json, .yaml, .yml, and .zip. JSON and YAML previews are read-only and share the original file. JSONC comments and trailing commas are not supported. PDF export is available for HTML and Markdown. Privacy and purchase Files are processed on device; the app does not upload your files. No account or ads. Paid download with no subscription or in-app purchase. New HTML files, including HTML inside ZIP packages, open in Interactive mode with page JavaScript and external resources enabled. The HTML content can make network requests. Select Safe Preview to block page scripts and external HTTP/HTTPS resources. External navigation and form navigation remain blocked in both modes. Saved preview choices are preserved when reopening files.

Screenshots

FieldMove Clino4 screens
HTML Previewer4 screens

Verdict

The call

The clearest difference is price: FieldMove Clino at Free against HTML Previewer's $5.99. FieldMove Clino also leads on iOS requirement (12.0 vs 17.0). HTML Previewer's advantage is update cadence (every 4 days vs every 2 months). On 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

FieldMove Clino is free to download; HTML Previewer costs $5.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

FieldMove Clino ships an update every 2 months, HTML Previewer every 4 days. Both last shipped on November 1, 2026.

Scorecard3 real differences · 7 level
FieldMove Clino versus HTML Previewer: the parameters behind the verdict, then further details
ParameterFieldMove ClinoHTML Previewer
PriceFree — better$5.99
Rating4.0 (22 ratings) — better—
Positive reviews66.7% of reviews—
Number of ratings22 — better—
Update frequencyEvery 2 monthsEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS12.0 — better17.0
Further details — not scored
Size27 MB9 MB
Age rating4+4+
DeveloperPetroleum Experts LimitedSHIFENG ZHANG

In-app purchases

None

FieldMove Clino

No in-app purchases

None

HTML Previewer

No in-app purchases

Questions

Is FieldMove Clino free?
FieldMove Clino is free to download, with no in-app purchases.
Is HTML Previewer free?
HTML Previewer costs $5.99, with no in-app purchases.
Do FieldMove Clino or HTML Previewer have ads?
Neither FieldMove Clino nor HTML Previewer shows ads.
Which is updated more often, FieldMove Clino or HTML Previewer?
FieldMove Clino ships an update every 2 months, and HTML Previewer every 4 days. Most recently, FieldMove Clino was updated on November 1, 2026 and HTML Previewer on November 1, 2026.

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