Comparison

JWT Lens vs pmosh

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

Head to head
About

JWT Lens

Features
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JWT Lens is a fast, private JSON Web Token decoder and verifier for developers — a Safari extension that works entirely on your device. Tap the toolbar icon, paste a token (or grab the text you've selected on the page), and instantly see: • Pretty-printed, color-coded Header and Payload • Human-readable timestamps — exp, iat and nbf shown in your local time with relative phrasing ("expires in 59 minutes") • An at-a-glance expiry badge: valid, expired, or not yet valid • Plain-English descriptions of standard claims (iss, sub, aud, and more) Need to check a signature? JWT Lens verifies HS256/384/512, RS256/384/512, PS256/384/512 and ES256/384/512 using a secret or PEM public key you provide — all computed locally with the system's WebCrypto, never sent anywhere. Privacy by design: • No network requests — ever • No analytics, no tracking, no accounts • Nothing is stored: tokens and keys live only in the popup while you use it Whether you're debugging OAuth / OIDC flows, inspecting a bearer token, or learning how JWTs work, JWT Lens keeps it quick, clear, and completely on-device. Universal app: works in Safari on macOS, iOS and iPadOS.

About

pmosh

This app provides an SSH terminal for mobile devices, connecting to your existing server's tmux sessions. It's designed for developers to manage command-line tools and shells remotely, ensuring session continuity between your device and server.

Highlights
  • Connects to remote tmux sessions via SSH
  • On-device SSH key generation
  • On-screen keyboard toolbar with special keys
  • Supports external hardware keyboards
  • Multiple tabs for separate tmux sessions
  • No accounts or subscriptions required
Features
Read full description

Run Claude Code, vim, htop and the rest of your setup from your phone: pmosh attaches to the tmux session that is already running on your own server, so nothing is copied, proxied or re-hosted. One tab is free forever; Pro (unlimited tabs) has a 7-day free trial. pmosh is an SSH terminal for iPhone and iPad that attaches to a tmux session on your own server using tmux's control mode, so the terminal you see on your phone is the same session running on your machine. It's built for developers who run tmux, shells, and command-line tools — including agentic coding tools like Claude Code — on servers or machines they already own and administer. pmosh doesn't provide any of that for you; it's a client that connects to infrastructure you already have. pmosh only connects to servers you configure. On first launch it generates an ed25519 SSH keypair on your device, stored in the iOS Keychain, and shows you the public key so you can add it to authorized_keys on your own server. You type in your host and username; nothing is pre-filled or bundled. There is no server component, no bundled credentials, and no third-party service in between. Features: - Attaches to a remote tmux session over SSH using tmux's control mode (tmux -CC), so output and session state stay in sync with the server - On-device ed25519 key generation — a unique keypair per install, kept in the iOS Keychain - Two rows of on-screen keys above the keyboard with what terminal work needs but iOS doesn't have: Esc, Ctrl-C, Enter, arrow keys (hold to repeat), Tab / Shift-Tab, and scrollback paging — both rows customizable in Settings, including keys that type your own text - Works with an external hardware keyboard if you use one - One terminal tab, with the full terminal feature set, free forever - No accounts and no sign-in — ever - pmosh Pro (optional subscription): unlimited tabs, each its own tmux session Privacy: pmosh does not collect analytics or usage data, and does not talk to any server other than the one you enter in setup. There is no account system and no data is sent to the developer or any third party. The only network connection the app makes is the SSH connection to your own server. Requirements: pmosh needs an SSH server you control, reachable from your device, with tmux installed on it. It is not a hosting service and does not include a server — you connect it to a server you already run. pmosh Pro — optional auto-renewing subscription - pmosh Pro Monthly: $3.99 per month - pmosh Pro Yearly: $29.99 per year pmosh Pro unlocks unlimited terminal tabs. One tab, with the full terminal, stays free forever — the subscription is entirely optional. Payment is charged to your Apple Account at confirmation of purchase. The subscription renews automatically unless it is turned off at least 24 hours before the end of the current period, and your Apple Account is charged for renewal within 24 hours before the end of the current period. You can manage or cancel your subscription in Settings on your device after purchase. Privacy Policy: https://robertpgruber.github.io/pmosh-site/privacy.html Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

JWT Lens1 screens
pmosh1 screens

Verdict

The call

JWT Lens and pmosh are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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.

ScorecardNo meaningful differences
JWT Lens versus pmosh: the parameters behind the verdict, then further details
ParameterJWT Lenspmosh
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequency—Fortnightly
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS16.4 — better17.0
Further details — not scored
Size1 MB6 MB
Age rating4+4+
DeveloperMasaya KontaniRobert Gruber

In-app purchases

None

JWT Lens

No in-app purchases

None

pmosh

No in-app purchases

Questions

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

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