Comparison

d20 Calculator vs Obsidian Web Clipper

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

Head to head
About

d20 Calculator

This app is a specialized calculator for tabletop role-playing games. It allows users to input complex dice roll combinations, including additions, subtractions, multiplications, and divisions, and provides instant results. Save custom rolls and enjoy realistic sound effects for an enhanced gaming experience.

Highlights
  • Calculate complex dice combinations
  • Support for any dice type (dx)
  • Save and label frequently used rolls
  • Dice roll sound effects
  • Add, subtract, multiply, and divide dice
Features
Read full description

A calculator for table top games. Enter any combination of die and get the result instantly. It can be as simple as "1d4" and as complex as "(3d100 + 5d7) x 3d2". No need to add up all the numbers yourself. d20 Calculator is a useful tool for any RPG or tabletop game. Features: - Save your frequently used rolls with labels to help you identify which rolls belong to which attacks. - "dx" button lets you roll any type of dice needed.. ever need a d7? - Add, subtract, multiply, and divide any combination of dice. - Dice roll sound effect so everyone know you're not cheating. - 6 stylish themes available.

About

Obsidian Web Clipper

Save web content directly to your personal knowledge base for offline access. Organize research, recipes, articles, and more with customizable templates and smart triggers. Your data is private, secure, and stored locally in durable Markdown format.

Highlights
  • Clip any web content
  • Select page content or extract main article
  • Customizable templates for metadata
  • Smart triggers for automatic template application
  • Seamless integration with Obsidian vault
  • Save as local Markdown files
  • Offline access to clipped content
Features
Read full description

Bring the web to your personal knowledge base. Save content to your Obsidian vault so you always have access to it, even offline. Obsidian is secure, private, and designed around durable open formats that allows you to preserve your data for the long term. Whether you're researching for a project, saving recipes, bookmarking travel destinations, or collecting inspiring articles, the Obsidian Web Clipper helps you organize your ideas. - Clip anything: From news articles and blog posts to recipes, product pages, and research papers — if it's on the web, you can save it. - Select page content: Clip entire pages, selected text, or let the clipper intelligently extract just the main content. - Customizable templates: Create tailored templates to automatically extract metadata from web pages. Perfect for academics, movie buffs, book lovers, or anyone who wants structured notes. - Smart triggers: Set up rules to automatically apply the right template based on the website you're clipping from. - Seamless integration: all your clips flow directly into Obsidian, in the vault and folder of your choice. As with everything Obsidian, Web Clipper is designed to protect your privacy, and give you control over your data. - No lock-in: All your clips are saved in clean, durable, portable Markdown files — no proprietary formats. - Offline access: your saved clips are saved locally, and always at your fingertips, with or without an internet connection. - 100% private: all your clipped content is stored locally in your Obsidian vault. Your thoughts are yours. Obsidian helps you create connections and links between your notes so you can organize your thoughts. You can create links between everything — ideas, articles, lists, locations, books — anything you can put in a note, you can link to other notes.

Screenshots

d20 Calculator4 screens
Obsidian Web Clipper1 screens

Verdict

The call

The clearest difference is in-app purchases: Obsidian Web Clipper at none against d20 Calculator's 1. Obsidian Web Clipper also leads on update cadence (every 9 days vs every 5 months). d20 Calculator's advantage is rating (4.7 vs 4.4) and review sentiment (85% vs 69%). On price, ads 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. d20 Calculator sells 1 one-off in-app purchase. Obsidian Web Clipper asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

d20 Calculator holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 342 and 98 respectively. Written reviews point the same way: 85% of d20 Calculator's written reviews are positive against 69% of Obsidian Web Clipper's.

UpkeepUpdate frequency

d20 Calculator ships an update every 5 months, Obsidian Web Clipper every 9 days. The most recent releases landed on October 15, 2026 and October 17, 2026 respectively.

Scorecard7 real differences · 3 level
d20 Calculator versus Obsidian Web Clipper: the parameters behind the verdict, then further details
Parameterd20 CalculatorObsidian Web Clipper
PriceFreeFree
Rating4.7 (342 ratings) — better4.4 (98 ratings)
Positive reviews85.5% of reviews — better68.8% of reviews
Number of ratings342 — better98
Update frequencyEvery 5 monthsEvery 9 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS9.0 — better15.6
Further details — not scored
Size12 MB28 MB
Age rating4+4+
DeveloperLion's DenDynalist Inc.

Customer experience

d20 Calculator

All ratings342 ratings
Positive93.9%
Neutral2.9%
Negative3.2%
Written reviews110 reviews
Positive85.5%
Neutral7.3%
Negative7.3%

Obsidian Web Clipper

All ratings98 ratings
Positive82.7%
Neutral4.1%
Negative13.3%
Written reviews125 reviews
Positive68.8%
Neutral9.6%
Negative21.6%

User reviews

d20 Calculator

From 342 App Store ratings

What we love

  • 🚀 Fast and efficient dice rolling
  • 👍 Simple and intuitive interface
  • 💡 Ability to save frequently used dice rolls
  • 🎲 Accurate and balanced random number generation
  • 🔢 Versatile dice calculation capabilities

Room to improve

  • 🐛 Crashes and stability issues, especially on newer iOS versions
  • 🔒 Inability to restore purchases or remove ads
  • 📱 Lack of support for iPad multitasking features (Split View, Slide Over)
  • 🔍 Limited customization options (e.g., no option to re-roll 1s)

Obsidian Web Clipper

From 98 App Store ratings

What we love

  • 🚀 Fantastic web clipper
  • 👍 Seamless and light on the system
  • 👍 Intuitive and easy to use
  • 👍 Powerful and customizable
  • 🚀 Works flawlessly

Room to improve

  • 🐛 Does not work on Mac
  • 🐛 Takes over Obsidian startup on iOS
  • 🐛 Extension not showing on macOS
  • 🐛 Complicated to use, not working on important websites

Bugs and requests

d20 Calculator

Reported bugs

3 issues
  • Crashes when attempting to purchase the full version
  • Crashes when trying to save more than one dice roll
  • Ads still present even after purchasing the full version

Requested features

4 requests
  • Add support for iPad multitasking features
  • Implement option to re-roll 1s or discard certain dice
  • Improve saved roll management (e.g., ability to edit saved rolls)
  • Add a character creation feature (4d6 drop lowest)

Obsidian Web Clipper

Reported bugs

2 issues
  • Defining a file path with a subfolder does not work
  • Doesn't wait for page load, resulting in missing content

Requested features

2 requests
  • Immersive reading experience with ability to hide top and bottom bars
  • Autofill possible vaults for clipping

In-app purchases

1 purchases

d20 Calculator

One-time1
  • Full Version$0.99
None

Obsidian Web Clipper

No in-app purchases

Questions

Is d20 Calculator free?
d20 Calculator is free to download, with in-app purchases available.
Is Obsidian Web Clipper free?
Obsidian Web Clipper is free to download, with no in-app purchases.
Which has better reviews, d20 Calculator or Obsidian Web Clipper?
d20 Calculator is rated higher. d20 Calculator averages 4.7 out of 5 from 342 ratings, while Obsidian Web Clipper averages 4.4 from 98 ratings.
Do d20 Calculator or Obsidian Web Clipper have ads?
Neither d20 Calculator nor Obsidian Web Clipper shows ads.
Which is updated more often, d20 Calculator or Obsidian Web Clipper?
d20 Calculator ships an update every 5 months, and Obsidian Web Clipper every 9 days. Most recently, d20 Calculator was updated on October 15, 2026 and Obsidian Web Clipper on October 17, 2026.

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