Comparison

ERMIS vs Mammoth AI

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

Head to head
About

ERMIS

Control your self-hosted AI agent from your phone. Manage complex workflows, research topics, draft content, and solve coding problems with a secure, private mobile interface. Ideal for developers and power users seeking advanced AI capabilities beyond basic chatbots.

Highlights
  • Connect to your own Hermes Agent instance
  • Manage AI workflows remotely
  • Research topics and summarize results
  • Draft and edit content
  • Assist with coding and debugging
  • Organize projects and tasks
Features
Read full description

ERMIS is your mobile control center for a hosted Hermes AI agent. Instead of using another basic chatbot, Hermes AI lets you connect to your own Hermes Agent instance and manage AI workflows from your phone. Research topics, draft content, solve coding problems, organize projects, and work through multi-step tasks with an agent built for real work. WHAT HERMES AI CAN DO • Connect to your own Hermes Agent instance • Research topics and summarize results • Write, edit, and generate ready-to-use content • Help with coding, debugging, and problem solving • Plan tasks and organize next steps • Support complex multi-step workflows • Manage your AI agent from your phone CONTROL YOUR AI AGENT FROM ANYWHERE Hermes AI gives you a simple mobile interface for working with your own AI agent setup. Set up your Hermes Agent instance, connect securely, and use Hermes AI as a mobile command center for research, writing, coding, planning, and task management. • Access your agent remotely • Manage ongoing tasks from your phone • Keep control over your AI setup • Work with a self-hosted agent environment • Stay productive without being tied to your desk YOUR DATA STAYS ON YOUR INSTANCE Hermes AI connects to your own Hermes Agent instance. Your AI work runs on the infrastructure you choose, so your prompts, tasks, and workflows are handled by your own setup instead of being processed through our servers. No shared chatbot workspace. No mining your conversations. Your agent, your environment, your control. POWERED BY HERMES AGENT Hermes AI is designed to work with Hermes Agent, the open-source autonomous agent framework from Nous Research. It gives developers, builders, researchers, and power users a mobile way to interact with an AI agent that can plan, reason, use tools, and help complete real work. BUILT FOR PEOPLE WHO WANT MORE THAN CHAT Use Hermes AI for: • Research and summaries • Writing and editing • Coding help • Productivity and planning • Task execution • Brainstorming and problem solving • Multi-step workflows • Remote access to your AI agent PERFECT FOR • Developers and builders • Power users • Researchers and students • Creators and writers • Privacy-conscious users • People who prefer self-hosted tools • Anyone who wants AI that helps get work done Hermes AI turns your phone into a remote for your own AI agent. Ask once. Get it done with Hermes AI. Policies Privacy Policy: https://www.notion.so/Hermes-AI-Privacy-Policy-30b8e2a74aa4807db3a2c0972544b96b Terms of Use: https://www.notion.so/Hermes-AI-Terms-of-Service-30c8e2a74aa480bbb295ec0cc2c878a1

About

Mammoth AI

This AI assistant builds a persistent memory vault from your shared information, learning and improving its skills over time. It integrates with your messaging platforms to take action and offers customizable autonomy levels for task management. Your data remains on your own infrastructure.

Highlights
  • Persistent memory vault
  • Self-improving skills
  • Messaging platform integration
  • Customizable autonomy levels
  • Runs on your own infrastructure
  • Open source
Features
Read full description

Stop juggling subscriptions. Mammoth gives you instant access to the world's best AI models - all in one clean, simple app. Don't go extinct. Stay at the top of AI. New models launch every week, and picking the "best" one is a full-time job. Mammouth solves that: one subscription, every leading model, always up to date. ACCESS ALL THE TOP AI MODELS Chat and create with the models everyone's talking about. FEATURES BUILT FOR REAL WORKFLOWS One-click reprompting - send your prompt to another model instantly and compare answers Mammoth Projects - organize your work by topic Upload images and files for the AI to analyze Voice chat for hands-free conversations AI-powered web search for up-to-date answers Switch models anytime, mid-conversation Sync seamlessly across all your devices YOUR DATA STAYS YOURS Fully GDPR compliant Your content is never used to train AI models Our providers don't retain your prompts, no history stored on their end Delete your history anytime, right from your account settings Join thousands of professionals, creators, and curious minds who use Mammoth every day to stay ahead in the fast-moving world of AI. Download Mammoth today and never fall behind again. Privacy Policy:https://sites.google.com/view/mammouthprivacy/home Terms of Use: https://sites.google.com/view/mammouthterms/home

Screenshots

ERMIS4 screens
Mammoth AI4 screens

Verdict

The call

The clearest difference is review sentiment: ERMIS at 50% against Mammoth AI's 0%. ERMIS also leads on update cadence (every 5 days vs every 3 weeks). Mammoth AI's advantage is rating (4.4 vs 4.0) and ratings volume (18 vs 4). On price, 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

Both are free to download. ERMIS sells 4 in-app purchases, starting at $12.99 per month and Mammoth AI sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Mammoth AI holds the better App Store score, 4.4 against 4.0. Both are backed by a comparable volume of ratings — 4 and 18 respectively. Written reviews complicate that: 50% of ERMIS's written reviews are positive against 0% of Mammoth AI's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

ERMIS ships an update every 5 days, Mammoth AI every 3 weeks. The most recent releases landed on November 13, 2026 and November 10, 2026 respectively.

Scorecard5 real differences · 5 level
ERMIS versus Mammoth AI: the parameters behind the verdict, then further details
ParameterERMISMammoth AI
PriceFreeFree
Rating4.0 (4 ratings)4.4 (18 ratings) — better
Positive reviews50.0% of reviews — better0.0% of reviews
Number of ratings418 — better
Update frequencyEvery 5 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhoneiPhone, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size17 MB96 MB
Age rating4++4
DeveloperIlya VishneuskiMarut Kumar

Customer experience

ERMIS

All ratings4 ratings
Positive75.0%
Neutral0.0%
Negative25.0%
Written reviews2 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

Mammoth AI

All ratings17 ratings
Positive88.2%
Neutral0.0%
Negative11.8%
Written reviews4 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

4 purchases

ERMIS

Subscriptions4
  • Premium3 Days trial$12.991 Month
  • Premium3 Days trial$19.991 Month
  • Premium3 Days trial$129.991 Year
Show 1 more
  • Premium3 Days trial$199.991 Year
3 purchases

Mammoth AI

Subscriptions3
  • Hermes AI Subscription$4.997 Days
  • Hermes AI Weekly Subscription3 Days trial$9.997 Days
  • Hermes AI Yearly Subscription$39.991 Year

Questions

Is ERMIS free?
ERMIS is free to download, with in-app purchases available.
Is Mammoth AI free?
Mammoth AI is free to download, with in-app purchases available.
Which has better reviews, ERMIS or Mammoth AI?
Mammoth AI is rated higher. ERMIS averages 4.0 out of 5 from 4 ratings, while Mammoth AI averages 4.4 from 18 ratings.
Do ERMIS or Mammoth AI have ads?
Neither ERMIS nor Mammoth AI shows ads.
Which is updated more often, ERMIS or Mammoth AI?
ERMIS ships an update every 5 days, and Mammoth AI every 3 weeks. Most recently, ERMIS was updated on November 13, 2026 and Mammoth AI on November 10, 2026.

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