Comparison

Roll 20! vs ArcEmu

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

Head to head
About

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.

Highlights
  • Dice roller for Apple Watch
  • Supports D4, D6, D8, D10, D12, D20, D100
  • Add custom modifiers
  • Quick roll selection
Features
Read full description

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

About

ArcEmu

Experience retro gaming on your Apple Watch, iPhone, and iPad. This emulator supports Game Boy, Game Boy Color, and Game Boy Advance cartridges. Enjoy features like multiplayer, cheats, and customizable controls.

Highlights
  • Game Boy, GBC, GBA emulation
  • Multiplayer support
  • Cheat codes
  • Customizable on-screen controls
  • Save State sharing
  • iCloud support
Features
Currently charting
Read full description

ArcEmu brings retro game emulation to Apple Watch. It also works on iPhone, iPad, and Apple TV, delivering a seamless gaming experience across your Apple devices. Supported Consoles - Game Boy (.gb) - Game Boy Color (.gbc) - Game Boy Advance (.gba) - Pokémon Mini (.min) - Nintendo Entertainment System (.nes) - Super Nintendo Entertainment System (.sfc and .smc) - Atari 2600 (.a26 and .bin) Main Features - Accurate, high-performance emulation powered by the mGBA and Ares cores - Game Link Cable support with online multiplayer for up to four players* - Cheat-code support with a built-in database of popular codes** - Frame-independent emulation at 30 or 60 FPS - Multi-touch and Digital Crown support on Apple Watch - Support for all screen orientations on iPhone and iPad - Precise, thoughtfully designed on-screen controls - Customizable control position and transparency on iPhone and iPad - Fast-forward at 2×, 4×, or maximum speed - Slow motion at 0.5× speed - Touch-based light gun controls for NES and SNES - Custom color palettes for Game Boy games - Button hold/sustain feature - Accelerometer support - Gyroscope support on iPhone and iPad, with Digital Crown input on Apple Watch - Haptic feedback on iPhone - Game controller support with customizable button mappings - ZIP archive support - Automatic saving - Save-state sharing between devices - iCloud support for ROMs and save states - ROM sharing through iCloud using share codes - Support for Apple Watch devices configured with Family Setup - ROM sorting and search Apple Watch Compatibility - Apple Watch Series 4 or later - Apple Watch SE or later - Apple Watch Ultra or later ArcEmu does not include any games or ROMs. You can import compatible ROM files from your iPhone and store them in iCloud. Your Apple Watch can then download them directly from iCloud. On an Apple Watch configured with Family Setup, ROMs can be downloaded from iCloud using share codes. Games Featured in the Screenshots - Acorn Grove: https://gibbongl.itch.io/acorn-grove - Anguna: https://gauauu.itch.io/anguna - Hauntsfield: https://alliemackie.itch.io/hauntsfield - µCity Advance: https://skylyrac.itch.io/ucity-advance * Requires a Game Center account. ** Cheat codes may cause unexpected behavior or affect game stability and save data. ArcEmu is not affiliated with, endorsed by, or sponsored by Nintendo. Nintendo and the names of its game systems are trademarks of Nintendo Co., Ltd.

Screenshots

ArcEmu4 screens

Verdict

The call

The clearest difference is rating: ArcEmu at 4.9 against Roll 20!'s 3.7. ArcEmu also leads on review sentiment (95% vs 62%) and ratings volume (1.3K vs 41). Roll 20!'s advantage is chart position (#55 vs #187) and price ($0.99 vs $1.99). On ads, in-app purchases and monetization model 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

Roll 20! costs $0.99 and ArcEmu $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

ArcEmu holds the better App Store score, 4.9 against 3.7. That said, the two scores are not equally well evidenced: ArcEmu has 1.3K ratings behind it against 41, so its average is the more settled of the two. Written reviews point the same way: 62% of Roll 20!'s written reviews are positive against 95% of ArcEmu's.

UpkeepUpdate frequency

Roll 20! ships an update every 5 weeks, ArcEmu every 2 weeks. The most recent releases landed on October 16, 2026 and October 15, 2026 respectively.

Scorecard8 real differences · 3 level
Roll 20! versus ArcEmu: the parameters behind the verdict, then further details
ParameterRoll 20!ArcEmu
Price$0.99 — better$1.99
Rating3.7 (41 ratings)4.9 (1.3K ratings) — better
Positive reviews61.5% of reviews94.5% of reviews — better
Number of ratings411.3K — better
Update frequencyEvery 5 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
Best chart rank#55 — better#187
DevicesiPhone, Apple WatchiPhone, iPad, iPod, Apple TV, Apple Watch — better
Requires iOS17.015.5 — better
Further details — not scored
Size2 MB172 MB
Age rating4+4+
DeveloperZiga PorentaRaffaele D'Amato

Customer experience

Roll 20!

All ratings41 ratings
Positive65.9%
Neutral9.8%
Negative24.4%
Written reviews26 reviews
Positive61.5%
Neutral11.5%
Negative26.9%

ArcEmu

All ratings1,304 ratings
Positive98.2%
Neutral0.8%
Negative1.0%
Written reviews528 reviews
Positive94.5%
Neutral2.8%
Negative2.7%

Bugs and requests

Roll 20!

Not enough reviews yet to summarise bugs or requests.

ArcEmu

Reported bugs

3 issues
  • Occasional crashes
  • Graphical glitches with certain ROMs
  • Save data not transferring properly between devices

Requested features

6 requests
  • Add cheat/GameShark support
  • Improve volume controls
  • Implement fast forward/slow motion options
  • Allow multiple save slots per game
  • Improve Game Boy Color support
Show 1 more
  • Add joystick/button support for Apple Watch

In-app purchases

None

Roll 20!

No in-app purchases

None

ArcEmu

No in-app purchases

Questions

Is Roll 20! free?
Roll 20! costs $0.99, with no in-app purchases.
Is ArcEmu free?
ArcEmu costs $1.99, with no in-app purchases.
Which has better reviews, Roll 20! or ArcEmu?
ArcEmu is rated higher. Roll 20! averages 3.7 out of 5 from 41 ratings, while ArcEmu averages 4.9 from 1.3K ratings.
Do Roll 20! or ArcEmu have ads?
Neither Roll 20! nor ArcEmu shows ads.
Which is updated more often, Roll 20! or ArcEmu?
Roll 20! ships an update every 5 weeks, and ArcEmu every 2 weeks. Most recently, Roll 20! was updated on October 16, 2026 and ArcEmu on October 15, 2026.
Which is more popular, Roll 20! or ArcEmu?
Roll 20! currently peaks at #55 in the App Store charts, and ArcEmu at #187. Chart position reflects recent download velocity rather than total install base.

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