# iSyslog vs JavaScript Editor

The clearest difference is in-app purchases: iSyslog at none against JavaScript Editor's 8. iSyslog also leads on ads (none vs shown). JavaScript Editor's advantage is chart position (#151 vs unranked) and iOS requirement (15.0 vs 17.0). On price, update cadence and device support there is nothing between them.

Both are free to download. JavaScript Editor sells 8 in-app purchases, starting at $1.99 per month. iSyslog asks for nothing beyond the download.

iSyslog ships an update every 3 weeks, JavaScript Editor fortnightly. Both last shipped on November 6, 2026.

## The numbers

| Metric | iSyslog | JavaScript Editor |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free | — |
| Best chart rank | — | **#151** |
| Size | 6 MB | 51 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Karoly Nyisztor](https://appshunter.io/developer/329758641) | [Sahana A S](https://appshunter.io/developer/1800491118) |

## What reviewers say

### iSyslog

[App page](https://appshunter.io/ios/app/isyslog/id468155763)

This utility app helps you monitor and analyze system logs on your iPhone or iPad. It visualizes hidden messages from apps and processes, aiding in the detection and reporting of crashes and bugs.

**Highlights:** Display all log messages, Organized and comprehensible interface, Filter processes and messages, Graphical log statistics, Share logs, Detect crashes and issues, Analyze system state

**Features:** macOS Compatibility, Vision Pro support, iPhone Duo support

**In-app purchases:** none


### JavaScript Editor

[App page](https://appshunter.io/ios/app/javascript-editor-js-ide/id6813782726)

**Currently charting:** #151 Top Grossing · Developer Tools (US App Store)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| JavaScript Editor Pro Monthly | $1.99 | per month |
| Pro Lifetime Limited Offer | $5.99 | one-time |
| Pro Lifetime Limited Offer | $7.99 | one-time |
| Pro Lifetime Limited Offer | $9.99 | one-time |
| Pro Lifetime Limited Offer | $11.99 | one-time |
| Pro Lifetime Limited Offer | $13.99 | one-time |
| Pro Lifetime Limited Offer | $15.99 | one-time |
| JavaScript Editor Pro Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is iSyslog free?

iSyslog is free to download, with no in-app purchases.

### Is JavaScript Editor free?

JavaScript Editor is free to download, with in-app purchases available.

### Do iSyslog or JavaScript Editor have ads?

JavaScript Editor shows ads; iSyslog does not.

### Which is updated more often, iSyslog or JavaScript Editor?

iSyslog ships an update every 3 weeks, and JavaScript Editor fortnightly. Most recently, iSyslog was updated on November 6, 2026 and JavaScript Editor on November 6, 2026.

---

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