Roll 20! vs PrismScroll Cthulhu
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Roll 20!
This application provides a straightforward and user-friendly dice rolling experience directly on your Apple Watch. Easily select from a variety of standard dice types or create custom modifiers for your rolls.
- Dice roller for Apple Watch
- Supports D4, D6, D8, D10, D12, D20, D100
- Add custom modifiers
- Quick roll selection
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Roll 20! is a dice roller made for Apple Watch. Raise your wrist, tap, and the dice tumble across the screen and land on your result. No phone, no table needed. DICE FOR EVERY GAME Roll a d4, d6, d8, d10, d12, d20 or d100. Perfect for Dungeons & Dragons, Pathfinder and any other tabletop role-playing game, board games and quick decisions. 3D DICE Real 3D dice that tumble and land on your result. Prefer the classic look? Switch to a big, clear number in Settings. ROLL SEVERAL DICE AT ONCE Roll up to 8 dice together, for example 3d6 for ability scores or 8d6 for a fireball. You see every die and the total. ADVANTAGE AND DISADVANTAGE Roll two d20 and keep the higher (advantage) or the lower (disadvantage) with one tap. The die that does not count fades out. NATURAL 20 AND NATURAL 1 A natural 20 gets a golden flash and a celebratory tap on your wrist. A natural 1 gets a wobble and a sad tap. The effects can be switched off. MODIFIERS Turn the Digital Crown or tap + and − to add a modifier. Add it once to the total, or to every roll. YOUR COLORS Choose a color for each die and for its numbers from the presets, or mix your own custom color. ROLL IN WAYS THAT FIT YOU • Tap the die, shake your wrist, or use Double Tap (Apple Watch Series 9, Series 10, Ultra 2 and later). • Ask Siri: "Roll a d20 in Roll 20!" • Use the "Roll dice" action in Shortcuts, or assign it to the Action button on Apple Watch Ultra. • Add the complication to your watch face and open a d20 straight from it. MADE FOR THE WRIST • Total of all your rolls, so you can keep track during a fight • Rolling sounds and haptics, each can be switched off • Always-On display support • VoiceOver support and Reduce Motion
PrismScroll Cthulhu
This app streamlines the creation and management of characters for the Call of Cthulhu 7th edition tabletop role-playing game. It offers a step-by-step creation process, equipment tracking, and the ability to export character sheets to PDF.
- Step-by-step character creation
- Automatic calculation
- Equipment tracking
- Custom occupation and item creation
- Unlimited character creation
- PDF character sheet export
- Cthulhu Journal for detailed accounts
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Why. PrismCthulhu is the last Call of the Cthulhu Character Sheet Builder you’ll ever need to download! Beautifully designed for your mobile devices, PrismCthulhu offers the most powerful combination between clean aesthetic and impressive functionality. Manage all your Call of the Cthulhu 7th edition characters in one place. Feedback. PrismScroll is devoted to creating an exceptional experience for all levels of Call of the Cthulhu players. We're very thankful for all the great feedback we've received thus far. Our team is dedicated to providing continuous updates with the goal of becoming the go-to digital character sheet. We read and respond to all user reviews because we know that YOU are going to be the ones that make PrismScroll the best it can be. Support. You will not get better support from any other app than from PrismScroll. Join our active Discord community and get involved today! Features. Seamless Character Creation. Automatic Calculation. No Ads Mobile Sheet. Compact, Mobile Friendly Digital PrismScroll designed character sheet. Character Creation. A complete, step by step character creation process that has skill selection, ability adjustment distribution, custom occupation capabilities, and much more. Equipment Tracking. Keep track of your assets and equipment easily with a full page dedicated to seeing all your weapons and items. Custom Creator. Want to create something new? Use our custom creator feature to create all kinds of new things. Create new Occupations, powerful new weapons, or something as simple as a new item. Unlimited Character Creation. Test out more builds and quickly spin up NPC's for your games with unlimited character creation Paper Sheet. One click PDF character sheet export in case you want to have a hard copy of your character sheet. Journal. Easily create itemized entries for NPC profiles and other more detailed accounts in the Cthulhu Journal. Join Us! Download the app now and enjoy the Best Digital Call of the Cthulhu 7th Edition Character Sheet to date! Social Media. Instagram @prismscroll Twitter @prismscroll Facebook @prismscroll Disclaimer. On first install, PrismScroll contains information that is available in the free rules for distributed by Chaosium. Join our discord channel via the link in the app settings for more information and visit our Youtube channel for quick tutorial videos.
Screenshots
Verdict
The clearest difference is rating: PrismScroll Cthulhu at 4.8 against Roll 20!'s 3.7. PrismScroll Cthulhu also leads on device support (4 vs 2) and iOS requirement (12.0 vs 17.0). Roll 20!'s advantage is price ($0.99 vs $2.99). On review sentiment, ratings volume, update cadence and ads 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
Roll 20! costs $0.99 and PrismScroll Cthulhu $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
PrismScroll Cthulhu holds the better App Store score, 4.8 against 3.7. Both are backed by a comparable volume of ratings — 42 and 26 respectively. Written reviews point the same way: 62% of Roll 20!'s written reviews are positive against 64% of PrismScroll Cthulhu's.
Roll 20! ships an update every 5 weeks, PrismScroll Cthulhu every 3 weeks. Both last shipped on October 25, 2026.
| Parameter | Roll 20! | PrismScroll Cthulhu |
|---|---|---|
| Price | $0.99 — better | $2.99 |
| Rating | 3.7 (42 ratings) | 4.8 (26 ratings) — better |
| Positive reviews | 61.5% of reviews | 63.6% of reviews — better |
| Number of ratings | 42 — better | 26 |
| Update frequency | Every 5 weeks | Every 3 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Best chart rank | #127 | #92 — better |
| Devices | iPhone, Apple Watch | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 17.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 2 MB | 93 MB |
| Age rating | 4+ | +4 |
| Developer | Ziga Porenta | Samuel Harmon |
Customer experience
Roll 20!
PrismScroll Cthulhu
In-app purchases
Roll 20!
No in-app purchases
PrismScroll Cthulhu
No in-app purchases
Questions
Is Roll 20! free?
Is PrismScroll Cthulhu free?
Which has better reviews, Roll 20! or PrismScroll Cthulhu?
Do Roll 20! or PrismScroll Cthulhu have ads?
Which is updated more often, Roll 20! or PrismScroll Cthulhu?
Which is more popular, Roll 20! or PrismScroll Cthulhu?
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