Comparison

Weights & Biases vs OpenMark

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

Head to head
About

Weights & Biases

Monitor machine learning experiments in real time from your mobile device. Get notified about important events like run completion or metric changes. Quickly review results and track key performance indicators for your training runs.

Highlights
  • Monitor live and completed runs
  • View training curves
  • Track loss, accuracy, and custom metrics
  • Receive run completion notifications
  • Get alerted on key metric changes
  • Sanity-check results quickly
Features
Read full description

Your model trains for hours. You shouldn't have to be at your desk the whole time. Weights & Biases for iOS puts your experiments in your pocket. Check on a run during a seminar, catch a diverging loss before you leave the lab, or find out why a run crashed without opening your laptop. SEE WHAT'S HAPPENING • Browse your projects and runs, with your starred and recent projects first • Pan, zoom and scrub training curves to read exact values at any step • Switch to log scale, choose your x-axis, and adjust each chart to fit • Open the Overview tab for config, summary metrics, hardware and environment details • Read live logs when a run does something unexpected KNOW WHEN IT MATTERS • Get a push notification when a run fails • Set metric alerts, such as "notify me if validation loss increases by at least 10%" • Tap a notification to go straight to the run ACT ON IT • Stop a run that's gone wrong from your phone, so you stop burning GPU hours BUILT FOR HOW RESEARCHERS WORK No dashboards to rebuild. Sign in with your existing W&B account, and the app shows the projects you already track. The charts you see on the web are the ones you see on your phone. Whether you're fine-tuning an LLM, training a model from scratch, or racing a conference deadline, W&B mobile helps you spend less time checking and more time thinking. Available for Free, Academic, Enterprise (SaaS) and Dedicated Cloud accounts. On-premises deployments are not yet supported.

About

OpenMark

View and render markdown files with advanced features like Mermaid diagrams and LaTeX math. Supports various themes, code highlighting, and offline access. Ideal for developers and writers working with markdown on iOS devices.

Highlights
  • Mermaid diagram rendering
  • LaTeX math support
  • Code block highlighting
  • GitHub-style alerts
  • Interactive checkboxes
  • Offline functionality
  • Multiple themes
Features
Read full description

OpenMark is a beautiful markdown reader for iPhone and iPad. Open any .md or .mdx file and see it rendered with full typography, Mermaid diagrams, LaTeX math and interactive checkboxes. The perfect companion to OpenMark for Mac — or a standalone reader for anyone who works with markdown. FEATURES • Beautiful rendered view with full markdown support • Mermaid diagrams — flowcharts, sequence, class, Gantt and Kanban rendered inline • Math and LaTeX — KaTeX rendering for equations, subscripts and matrices • Code blocks highlighted in 30+ languages • GitHub-style alerts — NOTE, TIP, IMPORTANT, WARNING and CAUTION callouts • Wiki-style [[links]] between documents • 4 themes — Default, Nord, Solarized Dark and One Dark • Interactive checkboxes — tap to toggle task list items • Find in page — search within your document • Reading time and document info • Export and print — share as PDF, HTML, or send to any app • Adjustable font size • Outline sidebar on iPad — jump to any heading • Opens files from iCloud Drive, Google Drive, Dropbox and Files • Spotlight indexing — find recently opened documents from Search • Home Screen Quick Actions — jump to recent files from the app icon • Dark and light mode, following your system setting • Works completely offline — no internet required DESIGNED FOR iPAD On iPad, an outline sidebar sits alongside your document for quick navigation through long files. Find in page works with ⌘F on an external keyboard. PERFECT FOR • Reading README files and documentation on the go • Reviewing markdown drafts from your Mac • Opening .md files from any cloud service or app Also available on Mac with full editing.

Screenshots

Weights & Biases4 screens
OpenMark4 screens

Verdict

The call

The clearest difference is price: Weights & Biases at Free against OpenMark's $9.99. Weights & Biases also leads on update cadence (weekly vs every 6 months). OpenMark's advantage is chart position (#52 vs unranked) and device support (3 vs 1). On review sentiment, 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

Weights & Biases is free to download; OpenMark costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Weights & Biases ships an update weekly, OpenMark every 6 months. Both last shipped on November 5, 2026.

Scorecard5 real differences · 6 level
Weights & Biases versus OpenMark: the parameters behind the verdict, then further details
ParameterWeights & BiasesOpenMark
PriceFree — better$9.99
Rating4.1 (14 ratings) — better—
Positive reviews76.9% of reviews — better71.4% of reviews
Number of ratings14 — better—
Update frequencyWeekly — betterEvery 6 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterPaid
Best chart rank—#52 — better
DevicesiPhoneiPhone, iPad, Mac — better
Requires iOS18.018
Further details — not scored
Size49 MB8 MB
Age rating4+4+
DeveloperWeights and BiasesRotate, LLC.

Customer experience

Weights & Biases

All ratings14 ratings
Positive78.6%
Neutral7.1%
Negative14.3%
Written reviews13 reviews
Positive76.9%
Neutral7.7%
Negative15.4%

OpenMark

Written reviews7 reviews
Positive71.4%
Neutral14.3%
Negative14.3%

In-app purchases

None

Weights & Biases

No in-app purchases

None

OpenMark

No in-app purchases

Questions

Is Weights & Biases free?
Weights & Biases is free to download, with no in-app purchases.
Is OpenMark free?
OpenMark costs $9.99, with no in-app purchases.
Do Weights & Biases or OpenMark have ads?
Neither Weights & Biases nor OpenMark shows ads.
Which is updated more often, Weights & Biases or OpenMark?
Weights & Biases ships an update weekly, and OpenMark every 6 months. Most recently, Weights & Biases was updated on November 5, 2026 and OpenMark on November 5, 2026.

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