Comparison

Hermex vs TethrX

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

Head to head
About

Hermex

This app provides a native mobile interface for interacting with your self-hosted Hermes Agent server. It allows you to manage conversations, control agent settings, and access workspace files directly from your iPhone.

Highlights
  • Connect to your own Hermes server
  • Manage existing and start new conversations
  • Control models, profiles, and reasoning
  • Attach files and photos
  • Browse workspace files
  • Offline read-only viewing of recent sessions
Features
Read full description

Hermex is a native iPhone and iPad client for your self-hosted Hermes agent. Connect to a reachable Hermes Web UI server, or enable the optional Bot Mode beta to connect directly to a Hermes agent host. Open existing sessions, start conversations, and follow streamed responses, tools, and reasoning as they arrive. Queue, steer, or stop an active run. Review file edits as diffs, browse workspace files, send photos and files, and dictate messages. Manage Kanban boards and cards, browse Tasks, Skills, Memory, and Usage, and choose models, profiles, and reasoning settings. Bot Mode adds a Bots inbox, Desktop sections, reactions, quick replies, approvals, questions, and group rooms. Live Activities keep working runs visible on the Lock Screen and Dynamic Island. Optional notifications let you know when work finishes or needs your attention. The share extension stages content from other apps for you to review and send. Agent execution happens on your configured server, not on the iPhone. Your server owns your conversations, tools, and workspace. Recent sessions and messages may be cached locally for read-only offline viewing; clear that cache from Settings. There is no Hermex-hosted agent backend, tracking, or analytics service. Optional push notifications use an open-source, self-hostable relay. Message previews are encrypted on your Hermes host and decrypted on your iPhone; the relay handles device tokens, notification metadata, and ciphertext, never message text, server URLs, or Hermes server credentials. Push is off until enabled. Hermex has no in-app account creation or in-app purchases. You need your own reachable Hermes server. Not affiliated with Nous Research.

About

TethrX

Features
Read full description

TethrX is a native, private, independent remote for Grok Build, SpaceXAI's terminal coding agent. Your phone is only a control plane, Grok, its tools, and your code stay on your own machine. TethrX connects to a small open-source bridge you run on your computer. • Watch Grok work in real time — thoughts, commands, file edits, and their output. • Approve or reject every tool call — from the app, or straight from a push notification on your lock screen. • Plan mode — Grok drafts a plan; you review and approve it before it builds. • Review what changed — per-file diffs, commit or discard from your phone. • Queue follow-ups, branch sessions, schedule recurring tasks, dictate messages. • No accounts, no tracking, no third-party servers. Your phone talks only to your bridge, direct, over Tailscale, with certificate-pinned HTTPS. Requires your own Grok Build install (SuperGrok / SuperGrok Heavy / X Premium+) and the TethrX bridge running on your computer (npx tethrx-bridge). Setup takes a couple of minutes. TethrX is an independent client and is not affiliated with, endorsed by, or sponsored by SpaceXAI. "Grok" and "Grok Build" are trademarks of their respective owner.

Screenshots

Hermex4 screens
TethrX4 screens

Verdict

The call

The clearest difference is chart position: Hermex at #31 against TethrX's unranked. On price, ads, 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. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 10 level
Hermex versus TethrX: the parameters behind the verdict, then further details
ParameterHermexTethrX
PriceFreeFree
Rating4.7 (135 ratings) — better—
Positive reviews85.1% of reviews—
Number of ratings135 — better—
Update frequencyWeekly—
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
Best chart rank#31 — better—
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.017.0 — better
Further details — not scored
Size72 MB4 MB
Age rating4+4+
DeveloperUzair AnsarNathan Ducatillon

In-app purchases

None

Hermex

No in-app purchases

None

TethrX

No in-app purchases

Questions

Is Hermex free?
Hermex is free to download, with no in-app purchases.
Is TethrX free?
TethrX is free to download, with no in-app purchases.
Do Hermex or TethrX have ads?
Neither Hermex nor TethrX shows ads.

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