# SJ Chmod Calculator vs JWT Generator for Supabase

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.

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.

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.

## The numbers

| Metric | SJ Chmod Calculator | JWT Generator for Supabase |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Weekly** | Every 4 months |
| Size | 3 MB | 17 MB |
| Requires iOS | 16.0 | 16.0 |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Stephane JAILLIARD](https://appshunter.io/developer/1749751077) | [书彦 张](https://appshunter.io/developer/1698930649) |

## What reviewers say

### SJ Chmod Calculator

[App page](https://appshunter.io/ios/app/sj-chmod-calculator/id6504128434)

**Features:** macOS Compatibility

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| A coffee | $0.99 | one-time |
| A cookie | $2.99 | one-time |
| A lemon tart | $4.99 | one-time |
| No ads | $4.99 | one-time |
| A pizza | $9.99 | one-time |


### JWT Generator for Supabase

[App page](https://appshunter.io/ios/app/jwt-generator-for-supabase/id6745578181)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $0.99 | per month |
| Lifetime Pro | $6.99 | one-time |


## Frequently asked 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.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*