iSyslog
by Karoly Nyisztor
- Developer Tools
- Free
- Rating
- 0.0
- 0 ratings · Uruguay storefront
- Last update
- Oct 22, 2026
- Version 3.0
- Size
- 7 MB
- Category
- Developer Tools
- Tracked since
- Oct 23, 2026
Estimated revenue
A model estimate with a likely range, not a reported figure.
No estimate. Apps outside the grossing charts, and some countries, have no reliable rank-to-revenue curve, so we show nothing rather than a guess.
How this estimate is made
Rank: we take the app's best Top Grossing rank on the latest chart day. Category ranks are converted into an equivalent overall rank, because a #10 in Finance earns far less than a #10 overall.
Curve: that equivalent rank is read off a rank-to-revenue curve anchored on public company revenue and market-data reports for the US iPhone App Store.
Country: the curve is scaled per country (Japan is roughly a third of the US, Türkiye under 1%). Where we have no scale, such as China, there is no estimate.
Range: the likely range widens with country, category and chart depth. It is a plausible span, not a statistical confidence interval.
Not included: ads, payments outside the App Store, and any difference between gross sales and what the developer keeps. Low confidence means indirect data; medium means several independent sources agree.
Full methodScreenshots
As shown on the App Store listing.
About this app
Text from the App Store listing.
iSyslog opens log sessions shared from apps built with iSyslogKit, the free, open-source in-app log console for iOS developers.
When a tester runs into a bug, they tap Share in the app's log console and send the session by AirDrop, Mail or Messages. Open it in iSyslog and see exactly what happened: every message with its severity, subsystem and category, plus the app build, device and OS it came from.
FEATURES
- Severity at a glance: a chart and counts for faults, errors, notices, info and debug messages
- Zero in on problems: show only errors and faults with one tap
- Search across messages, subsystems and categories
- Filter by subsystem, and hide Apple framework messages
- Session info: app version and build, device model, OS version and time span
- A library of every session you've received
- Designed for iPhone, iPad and iPhone Duo, in light and Dark Mode
- Includes a sample session, so you can explore right away
FOR DEVELOPERS
Add iSyslogKit to your app with Swift Package Manager: github.com/nyisztor/iSyslogKit. It captures your app's Logger and os_log messages and print output in Debug and TestFlight builds, gives testers an in-app log console, and lets them share sessions with one tap. It uses public APIs only, and captures nothing in App Store builds by default.
PRIVACY
iSyslog doesn't collect any data. Sessions you open stay on your device until you delete them.
What’s new
Release notes for the latest version, as written by the developer.
iSyslog is back, completely rebuilt.
Modern iOS no longer lets apps read the system log, so iSyslog now works with iSyslogKit: a free Swift package that gives your app an in-app log console and lets testers share their logs with you. iSyslog opens those sessions on iPhone, iPad and iPhone Duo.
- New design for iOS 26 and later, with Dark Mode
- Severity chart, errors-only filter and search
- Session library and session info
- A sample session to explore right away
Rank history
Daily position in the Nicaragua charts. #1 is at the top.
- Best rank
- #33
- Current rank
- #33
- Days charting
- 2 of 7
On the charts today
Small & simple score
How realistic it is for a small team to build something like this.
60/100
Not flagged as small & simple
- Developer size40% · 25
Developer: 3 apps on the charts
- Audience size– · 20
No data, weight redistributed
- App size100% · 10
Size: 7 MB
- Price model80% · 15
Price model: free with in-app purchases
- Demand proof53% · 30
Best rank #33, 9 countries
An indicator, not a fact. We can't see team size. Calculated Oct 25, 2026 · method i2
How the score worksVersion history
- 3.0LatestReleased Oct 22, 2026