Comparison

SJ Chmod Calculator vs JWT Generator for Supabase

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

Head to head
About

SJ Chmod Calculator

Features
Read full description

SJ Chmod Calculator is a free iOS app designed for system administrators, developers, and Linux/Unix users who need to quickly and accurately calculate, understand, and convert Unix file permissions. With its clear and intuitive interface, the app makes it easy to switch between numeric and symbolic representations of file permissions. SJ Chmod Calculator offers two simple methods to obtain or verify file or directory access rights. First mode: Numeric code input (755, 644, 600, etc.) The user enters a 3-digit chmod value. The app instantly displays: – A permissions table (read, write, execute) for each category: User (owner), Group, Others – The equivalent symbolic notation (e.g., rwxr-xr-x) Second mode: Interactive table input The user simply checks the boxes for read (R), write (W), and execute (X) for each category. The app automatically calculates: – The corresponding numeric chmod value – The Unix symbolic permission string Key features: – Instant conversion between numeric and symbolic notation – Visual table of permissions by category (user, group, others) – Intuitive interface, easy to use – Free application A practical tool for all Linux/Unix users Whether you’re a developer, system administrator, student, or advanced user of Unix/Linux systems, SJ Chmod Calculator helps you manage file permissions quickly and effortlessly.

About

JWT Generator for Supabase

Features
Read full description

JWT Generator for Supabase is a powerful tool designed specifically for developers to create, manage, and renew JWT tokens for Supabase authentication with ease. No need to memorize complex command line parameters or search through documentation—generate standard-compliant JWTs in just a few steps: • Simply enter your Team ID (iss), Service ID (sub), and Key ID (kid) • Import or paste your private key (with .p8 file support) • Customize token expiration time • Generate and copy to clipboard with one tap Powerful Management Features: • Save multiple JWT configurations for quick switching • Set expiration reminders to ensure your apps never break due to token expiration • Receive automatic notifications 7 days, 3 days, and 1 day before expiration • Customize notification content for personalized reminders Security First: • App Lock feature protects your credentials • Face ID/Touch ID biometric unlock support • Configurable auto-lock timing (from immediate to 1 hour) • Recovery key ensures you never lose access Professional Design Experience: • Modern UI with customizable accent colors • Intuitive workflow even for JWT beginners • Thoughtfully designed animations and haptic feedback • Works completely offline—your keys never leave your device Pro Version Unlocks More: • Unlimited saved JWT configurations • App Lock to protect your private keys • Custom notification text • Additional theme color options JWT Generator makes the API authentication process simple and reliable, allowing you to focus on building great Supabase applications instead of wasting time on token generation and management. For any questions or suggestions, please contact us through the "Contact Support" feature in the app. JWT Generator EULA: https://www.apple.com/legal/internet-services/itunes/dev/minterms

Screenshots

SJ Chmod Calculator3 screens
JWT Generator for Supabase1 screens

Verdict

The call

The clearest difference is ads: JWT Generator for Supabase at none against SJ Chmod Calculator's shown. SJ Chmod Calculator's advantage is update cadence (weekly vs every 4 months). On price, in-app purchases, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SJ Chmod Calculator sells 5 one-off in-app purchases and JWT Generator for Supabase sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

SJ Chmod Calculator ships an update weekly, JWT Generator for Supabase every 4 months. The most recent releases landed on October 27, 2026 and October 28, 2026 respectively.

Scorecard2 real differences · 4 level
SJ Chmod Calculator versus JWT Generator for Supabase: the parameters behind the verdict, then further details
ParameterSJ Chmod CalculatorJWT Generator for Supabase
PriceFreeFree
Update frequencyWeekly — betterEvery 4 months
AdsYesNo — better
In-app purchasesYesYes
DevicesiPhone, iPad — betteriPhone
Requires iOS16.016.0
Further details — not scored
Size3 MB17 MB
Age rating4+4+
DeveloperStephane JAILLIARD书彦 张

In-app purchases

5 purchases

SJ Chmod Calculator

One-time5
  • A coffee$0.99
  • A cookie$2.99
  • A lemon tart$4.99
Show 2 more
  • No ads$4.99
  • A pizza$9.99
2 purchases

JWT Generator for Supabase

Subscriptions1
  • Monthly Pro$0.991 Month
One-time1
  • Lifetime Pro$6.99

Questions

Is SJ Chmod Calculator free?
SJ Chmod Calculator is free to download, with in-app purchases available.
Is JWT Generator for Supabase free?
JWT Generator for Supabase is free to download, with in-app purchases available.
Do SJ Chmod Calculator or JWT Generator for Supabase have ads?
SJ Chmod Calculator shows ads; JWT Generator for Supabase does not.
Which is updated more often, SJ Chmod Calculator or JWT Generator for Supabase?
SJ Chmod Calculator ships an update weekly, and JWT Generator for Supabase every 4 months. Most recently, SJ Chmod Calculator was updated on October 27, 2026 and JWT Generator for Supabase on October 28, 2026.

Other comparisons