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d20 Calculator

A calculator and dice roller 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.
- 8 stylish themes available.

Use for tabletop games such as Dungeons & Dragons (D&D), Pathfinder RPG (PFRPG), Savage Worlds, GURPS and many more RPGs.

Category : Tools

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Reviews (28)

Nat. H. Jul 26, 2019     

The only problem I had with this app was the ads. The ads were intensely disruptive and embarrassing and they made an otherwise flawless app /literally/ unusable. But I finally found out how to get rid of the ads! It does cost $1 but I would gladly play more for such a helpful app. There's no pay button in the settings that I could see, but when you try to save more than one preset dice it finally prompts you to pay and bing bang bosh, $1 down no ads, you get cool skins/themes and all is well.

Sea. S. Jul 28, 2019     

Edit. No reply from the developer.i have no found another app with no ads There is no purchase option. The ads are vwry intrusive amd annoying because the ads are full screen and aweful. Im looking for something. similar. when i find it and it allows a purchase with no ads I will never use again. that saids its so easy to use. I know that sounds silly, but some dice calculators are ridiculous. you literally interact with this like you would with Dice in person. its the best out there hands down!

Str. S. Sep 22, 2019     

Easy to use interface, stack deletion, all standard dice available (d4 to d100) plus dN(dX), history, formula save, colour themes, works in portrait and landscape modes. Even though it crashes a few times per session, I think this is easily the best Dice Calc. A great app, thanks! TIP: if in portrait, drag screen right for save, history and options.

Luc. B. Oct 23, 2019     

This app has the potential to be an extremely useful tool to any player or DM that uses dice of carrying sizes and modifiers. the adds are a bit over the top and a purchase option to disable adds would go a long way to making this a great app. and the limited roll history call back also hinders it performance.

Ale. G. Aug 14, 2019     

Love how convenient it is on the off day I forget my dice for a session, but it would be nice if the app allowed the rolls to be saved in files or groups you could name and order around. It's easy to save the formulas, but not the results. Oh, maybe a history log that includes the typed formula and result is what I'm looking for?

Vio. V. Nov 14, 2019     

Have all the lion's den apps installed with premium. Feel like the ads really hold this one back. They aren't even like small out of the way banner ads they are full screen ads that take you away from the app. Really frustrating when you need to roll and an ad basically clickjacks you.

Dav. R. Apr 4, 2019     

The app itself seems good but it has extremely intrusive full screen ads that you can't stop. There are no purchase options. Had to uninstall.

Wil. Mar 27, 2019     

Very nice diceroller, simple in design. Good for quick math during D&D. I just wish it showed decimals in the results, or that there was an option to display it.

Ben. P. Jan 29, 2019     

Didn't warn me it would play full screen video advert. Highly embarrassing when your phone makes a noise without me doing anything... Shame as the functionality is pretty good.

Shr. M. Jun 27, 2019     

Very Good App... I'd have given 5 stars if there was an option to calculate d100... Edit(2 minutes after the original was posted): Oops! Sorry, there is an option to calculate d100...

T.. H. M. Sep 5, 2019     

Excellent app for any roleplaying game, and honestly better than your standard calculating app. Makes playing on the go SO much easier.

Buf. P. Jul 29, 2019     

Really a great dice calculator. But the fullscreen, full volume ads are sending me towards the uninstall.

Bon. D. Feb 19, 2020     

Great app! The option to buy the app. appears much later after many ads, unfortunately. But it does eventually appear! Keep on rolling, guys! Thanks for this really useful app!

Ben. B. Apr 27, 2021     

Version with ads is ridiculously unusable. You can buy it, but the competitor is better.

Ric. G. Dec 19, 2019     

Love this app. But it has an adwall and no purchase options. I wanted to use this to test out damage probabilities.

Nic. G. Jan 22, 2019     

Simply making life easier. However I purchased this app, along with Fight Club 5, but I still get adds. It is a no nonsense and enjoyable app.

Tim. G. Mar 8, 2021     

This app is generally decent, but the ads are very intrusive, and ruin the flow of play.

Chr. D. May 17, 2019     

Great app, but intrusive ads. Would gladly pay to remove them, but cannot figure out how?

Sam. L. Mar 27, 2020     

Works as intended but contains annoyingly loud fullscreen ads that are extremely startling.

Gav. D. Oct 14, 2019     

WHY DOES IT SAY THERE ARE IN APP PURCHASES BUT I CANT FIND ANY?! I WOULD ASSUME ONE WOULD BE TO REMOVE THE GOD AWFUL ADS THAT INTERRUPT MY DND SESSION!

Sid. R. Aug 11, 2019     

perfect companion to any PC or DM that forgot their dice work lots of options

Lio. G. Mar 28, 2019     

Intuitive and easy to use.

Jim. W. Mar 29, 2019     

five star for next upgrade with history of previous rolls. Thanks!

Gen. M. Feb 20, 2019     

Great app! I have it at every game.

Aar. B. Mar 7, 2021     

By using this app is to keep doing Dungeons and Dragons

Eir. Jul 21, 2018     

The app is fantastic, I purchased it a good while ago but I guess I never got around to rating it. It's very easy to set up complicated rolls in just a second or two. The themes are a nice touch. The only thing that's missing is a decimal point. Please implement this when you guys can, Empower Spell is too common to leave something like this out. Thanks.

Kat. Jul 11, 2018     

This app is exactly what it says it is: a dice calculator & roller. Its clean and easy to use. Exactly what I've come to expect from Lion's Den from my experience with their apple products. I would give it a 5/5 stars but its so difficult to figure out how to disable the ads (save more that one roll to get the purchase option). It's almost as if the developer doesn't want you to pay for it.

Xac. May 6, 2017     

Great little app that can greatly speed up a game that has a lot of complicated rolls. The only real complaint that I have is that there doesn't seem to be a way to include percentages or decimals into the formula, which is a shame because the game I'm playing has a lot of times where you multiply the result by 1.25 or 1.5, and it'd be great not to have to switch to another calculator when my players start throwing stupid multipliers at me