Comparison

Master RPG AI vs Polymyth

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

Head to head
About

Master RPG AI

Experience tabletop RPG storytelling on your mobile device with an AI Dungeon Master. Explore handcrafted worlds or create your own, making every choice shape your unique adventure. Features AI-generated visuals and realistic 3D dice rolls.

Highlights
  • AI-powered Dungeon Master
  • Handcrafted and custom worlds
  • Character progression up to level 20
  • Homebrew class and race support
  • AI-generated scene illustrations
  • 3D dice with realistic physics
  • Open-ended freeform storytelling
Features
Read full description

Your AI Dungeon Master, always ready. Master RPG AI brings the magic of tabletop RPG to your pocket — pure storytelling, real choices, zero grinding. Your only limitation, is your imagination Master RPG AI is the AI Dungeon Master in your pocket. Not a generic chatbot — a purpose-built AI Game Master specialized in role-playing, designed to deliver the same thrill you felt the first time you opened a gamebook, loaded Zork, or rolled your first d20 with friends around the table. That pure magic of tabletop RPG storytelling, now available anytime, anywhere. PURE ROLE-PLAYING — ZERO GRINDING Forget boring fetch quests and mindless grinding. This is your Dungeon Master AI, old-school at its core: pure storytelling, real choices, total freedom. Every word you type matters. Every decision reshapes the world. HANDCRAFTED WORLDS WITH DEEP LORE Explore richly detailed campaign settings: survive classic '80s horror in The Oak Valley Terror, build a kingdom in Forgottenland, study magic at an arcane academy, fight dragons in a WW2 alternate history, or defend the Elderscale Marches in a cyber-fantasy epic. More worlds coming soon. PLAY ANYTHING YOU IMAGINE 12 classes, 8 races, leveling up to 20 — plus full Custom Adventure mode. Homebrew classes and races fully supported. Write ANY background, ANY setting, ANY universe. Play a vampire lord in 1800s London, a bounty hunter wielding laser swords across distant galaxies, or a political mastermind in a medieval realm. Describe your world during character creation — the AI builds the entire campaign around YOUR vision. YOUR HERO EVOLVES WITH YOU Your character sheet grows as you level up — unlocking new abilities, spells, and equipment across 20 levels. Your AI Game Master tracks your progress and adapts every encounter to your hero's journey. THE BEST GRAPHICS ENGINE We use the most powerful graphics engine that exists: your IMAGINATION. And our AI brings it to life, generating stunning illustrations for every scene, character, and battle. Your text adventure becomes a visual experience. REAL 3D DICE Roll with real physics. Critical hits land with weight. Failed saves have consequences. NO INVISIBLE WALLS Open-ended, freeform storytelling — not multiple choice. Say anything, try anything, BE anything. The world keeps evolving: new villains rise, allies betray you, and sometimes YOU are the real threat. WHY MASTER RPG AI: — AI specialized in RPG, not a chatbot — Handcrafted lore-rich worlds + full custom mode — 12 classes, 8 races, level 1 to 20 — Homebrew fully supported — Character sheet with automatic progression — AI-generated images every scene — 3D dice with real physics — Free to play — earn tokens by watching rewards We built Master RPG AI because we're tabletop RPG players who grew up on that feeling of magic — Zork, gamebooks, late-night DnD sessions where stories became real. Everyone deserves to feel like a hero. Stop waiting for game night. Download Master RPG AI now. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://rpgmaster.ai/privacy

About

Polymyth

Features
Read full description

Roll a hero. Gather your party. Chase quests through hand-crafted 5th Edition worlds — fight tactical combat, roleplay in-character, level up session to session. Your AI Game Master is always ready, solo with AI companions or live with friends. The world adapts to every choice you make. A LIVING WORLD THAT REACTS • Every NPC has memory, motive, and tactics — bards remember your insults, merchants haggle, enemies coordinate • Hand-crafted adventures with proper pacing, mystery, and branching paths — not procedurally generated filler • The world keeps score — quest beats, factions, allies, betrayals PLAY IN CHARACTER • Speak as your hero — flirt, lie, intimidate, bluff your way through • Whisper to one ally or address the whole party • The GM answers in-fiction, every time REAL 5TH EDITION COMBAT • Full ability scores, classes, spells, conditions — nothing simplified • Attacks of opportunity, concentration saves, legendary actions, lair effects • Positioning, reactions, ongoing effects — all tracked, all real YOUR HERO PERSISTS • Level up, prep spells, equip loot — your character grows with every quest • A campaign journal captures every encounter, every NPC met, every choice made • Pick up exactly where you left off, on any device LAUNCH ADVENTURE — GOLDVALE'S LAST HOPE A snowbound mountain village. White dragons stirring in the peaks. Form a party of four, brave the Stormfang, and decide the fate of a people. Hand-crafted, hours of play, multiple paths through. WHY POLYMYTH • No GM scheduling — pick up your campaign any time • No rules memorization — the GM handles every roll, save, and edge case • Full 5th Edition, not simplified — depth you'd get at a real table • AI party members that actually play — they fight, plan, banter, grow • Adventures that are written, not auto-generated — quality you can feel Polymyth uses the 5th Edition SRD rules, licensed under Creative Commons Attribution 4.0. Polymyth Tokens are a per-message currency that covers AI compute. New players get a generous starting balance to play through the launch adventure.

Screenshots

Master RPG AI4 screens
Polymyth4 screens

Verdict

The call

The clearest difference is ads: Polymyth at none against Master RPG AI's shown. Master RPG AI's advantage is iOS requirement (15.6 vs 17.0). On price, update cadence, in-app purchases 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. Master RPG AI sells 5 in-app purchases, starting at $6.99 per month and Polymyth sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Master RPG AI ships an update every 9 days, Polymyth weekly. The most recent releases landed on October 30, 2026 and October 25, 2026 respectively.

Scorecard2 real differences · 8 level
Master RPG AI versus Polymyth: the parameters behind the verdict, then further details
ParameterMaster RPG AIPolymyth
PriceFreeFree
Rating4.5 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 9 daysWeekly — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better17.0
Further details — not scored
Size101 MB66 MB
Age rating12+9+
DeveloperMASTERAI S.R.L.S.Karma Coin Ltd

In-app purchases

5 purchases

Master RPG AI

Subscriptions3
  • Silver Plan$6.991 Month
  • Gold Plan$9.991 Month
  • Platinum Plan$14.991 Month
One-time2
  • Token Pack$0.99
  • Bronze Pack$1.99
3 purchases

Polymyth

One-time3
  • 5 PM Tokens$6.99
  • 10 PM Tokens$15.99
  • 20 PM Tokens$31.99

Questions

Is Master RPG AI free?
Master RPG AI is free to download, with in-app purchases available.
Is Polymyth free?
Polymyth is free to download, with in-app purchases available.
Do Master RPG AI or Polymyth have ads?
Master RPG AI shows ads; Polymyth does not.
Which is updated more often, Master RPG AI or Polymyth?
Master RPG AI ships an update every 9 days, and Polymyth weekly. Most recently, Master RPG AI was updated on October 30, 2026 and Polymyth on October 25, 2026.

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