Nat20
Your Ultimate D&D 5e Companion
Now in beta on iOS and Android
A mobile-first D&D 5th Edition companion app with a full SRD compendium, 3D dice roller, character management, real-time campaign relay, combat system, and interactive battle maps.
Features
SRD Compendium
Full-text searchable database with 554 spells, 2,566 monsters, 1,794 items, 133 subclasses, 142 races, 215 feats, and 138 backgrounds — all available offline.
3D Dice Roller
Physics-based 3D dice with cryptographically secure RNG. Support for complex notation like 2d6+1d8+4, advantage/disadvantage, shake-to-roll, and collectible dice skins.
Character Management
Full character sheets with class-themed grimoire spellcasting UI, level-up wizard, multiclassing, and import from D&D Beyond, Roll20, and Fight Club 5e.
Campaign Relay
Real-time multiplayer campaigns with room codes, WebSocket relay, DM-controlled leveling, shared and private notes, and full audit logs.
Combat System
Encounter builder with CR calculator, initiative tracker with real-time sync, condition tracking, NPC action rolling, and batch NPC actions.
Battle Maps
Interactive maps with fog of war, hex grid support, token system with size auto-detection, vision and lighting with darkvision, and real-time sync.
Pricing
Simple, fair pricing. No ads, no data selling.
Free
- SRD compendium browsing
- Dice roller
- 1 character slot
- Join campaigns
Premium Player
- Everything in Free
- Unlimited characters
- Class grimoire spellcasting UI
- PDF & CSV export
- Character import
Dungeon Master
- Everything in Premium
- Campaign management
- Battle maps & fog of war
- Combat encounter builder
- Real-time session tools