MTG Compendium vs Hermai
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MTG Compendium
This app is a comprehensive companion for Magic: The Gathering players. It allows you to scan and collect cards, build and analyze decks with detailed statistics, track your game history, and get personalized advice from an AI deck coach. It also provides tools for exploring game sets and preconstructed decks.
- Card scanning and collection management
- Advanced deck building and analysis
- Life counter and game log
- AI-powered deck advice and insights
- Price tracking and history
- Set exploration and deck comparison
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Stop passing the phone. Compendium is the Magic: The Gathering companion for your whole pod: a live multiplayer life counter, trades and head-to-head with the people you play, plus a deck builder, card scanner and a deck coach that knows your games. New: the Pod Hub puts your invites, pod mates, games together and possible trades in one place, and a QR code gets everyone at the table into your game (and your pod, if they want). Only one with the app? Add the others as guests. No account needed to scan, build and count life. Sign in (free) to play or trade with your pod. YOUR POD Pod Hub—invites, pod mates, games together and possible trades on one screen, one tap from the Decks tab Join by QR—show a code in game setup and friends join by scanning or typing a six-character code, and can add you to their pod as they join Names and commander art—choose a display name and a signature commander so your pod sees who's who Head-to-head with each pod mate from your live and shared games, on the Hub and on their profile Your pod this week on Discover: recent games, new binder cards and possible trades, plus a Rematch button After a game, "At this table" sends a pod invite to everyone you played with "In your pod" on card pages shows which pod mates have a card for trade or want it One Invites inbox for pod invites and live games, with alerts you control. All free PLAY & IMPROVE Life counter for 1–6 players with commander damage, poison, and custom counters Live Games—every player syncs life, commander damage and counters from their own phone in real time, no passing one device around the table. Works on whatever phone each pod mate has Game log that tracks your wins, losses, commanders faced, and finish position Share a logged game with your pod so everyone can fill in their own side of the story Win/loss trend analysis, play/draw splits, and rival tracking over time Pre-game matchup prep—know what you're up against before you sit down POD TRADING Invite friends into your pod and Compendium spots every card they want that's sitting in your binder, and every card you want that's sitting in theirs—no more "anyone got a...?" in the group chat Once connected, binders stay in sync automatically—no exporting, no back-and-forth messaging MEET MOX Mox knows Magic: The Gathering inside and out—and now it knows your games too. Ask Mox for deck advice, card questions, rules or upgrade ideas Get personalized Game Insights based on your real play history—not generic advice Let Mox build you a deck from scratch or finish your half-built list Add cards to your wishlist, collection, or deck with a tap SCAN & COLLECT Instant card scanning—add cards to your collection in seconds Smart filters, sets, and custom organization Real-time prices from TCGPlayer, CardMarket, and Cardhoarder 90-day price history so you can spot trends at a glance BUILD BETTER DECKS Deck builder for any format: Commander/EDH, Standard, Modern, Pioneer, Legacy, and more Set a budget ceiling and Mox will keep your list within it Opening-hand probabilities, mana curve, color distribution, and mana health Deck value tracking with 1-year price history Import from Moxfield, Archidekt, or any text list—export anywhere Browse, compare and import official preconstructed decks Discover feed with Card of the Week, trending decks and recent sets FREE TO START. UPGRADE WHEN YOU'RE READY. Compendium is free to download and use, and pods, Live Games and Pod Trading are free. Pro unlocks advanced analytics, unlimited deck evaluations, Game Insights, syncing your own collection and decks across your devices, and the full power of Mox—including chat, deck creation, and matchup prep. Magic: The Gathering and all related properties are trademarks of Wizards of the Coast LLC. Compendium is not affiliated with or endorsed by Wizards of the Coast. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Hermai
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Hermai is a minimalist companion app for TRMNL e-ink device owners. Named after the ancient Greek inscribed stone pillars that displayed information at crossroads, Hermai brings calm, focused device management to your pocket. See your fleet at a glance View all your TRMNL devices in one place. Each device card shows its name, status, battery level, WiFi strength, and a thumbnail of what's currently on screen — so you know everything is running without opening a browser. Inspect any device in detail Tap into a device to see its full profile: firmware version, MAC address, signal quality, refresh rate, battery voltage, and Developer Edition status. The current display section shows a large preview of exactly what your TRMNL is showing right now. Set up devices and retrieve API keys Select your device model and provision it directly from the app. Once set up, your Device API Key is stored securely and ready to copy with a single tap. Preview your screens See what each device is displaying without advancing the playlist. The current screen preview loads the live image from your device so you can inspect e-ink rendering on the go. Built for developers Quick access to Device API Keys, Friendly IDs, and MAC addresses. Everything a Developer Edition user needs to integrate, debug, and manage their TRMNL setup. Private by design Hermai has no backend server. Your API keys are stored exclusively on your device using iOS Keychain, never transmitted anywhere except directly to the TRMNL API. No analytics, no tracking, no cloud sync. Logout erases everything. Calm technology No push notifications. No badges. No urgency. Just pull-to-refresh when you want. A monochrome, e-ink-inspired interface that respects your attention — just like TRMNL itself.
Screenshots
Verdict
The clearest difference is rating: Hermai at 5.0 against MTG Compendium's 3.4. Hermai also leads on in-app purchases (none vs 3). MTG Compendium's advantage is ratings volume (5 vs 1). On price, ads, device support and iOS requirement 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
Both are free to download. MTG Compendium sells 3 in-app purchases, starting at $2.99 per month. Hermai asks for nothing beyond the download.
Hermai holds the better App Store score, 5.0 against 3.4. That said, the two scores are not equally well evidenced: MTG Compendium has 5 ratings behind it against 1, so its average is the more settled of the two.
| Parameter | MTG Compendium | Hermai |
|---|---|---|
| Price | Free | Free |
| Rating | 3.4 (5 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 57.1% of reviews | — |
| Number of ratings | 5 — better | 1 |
| Update frequency | Weekly | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 26.0 — better | 26.2 |
| Further details — not scored | ||
| Size | 74 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Mark Webb | Tomita Militaru |
In-app purchases
MTG Compendium
- Unlimited Evals and Chat7 Days trial$2.991 Month
- Annual Pro Subscription7 Days trial$34.991 Year
- Compendium 3 Deck Evaluations$1.99
Hermai
No in-app purchases









