UPDATE: I now recommend using AmneziaWG. I have moved to it instead of using udp2raw and it works wonderfully. Many states block access to web sites, commercial VPNs, VPN protocols, and in some cases…
Privacy-focused apps and tools for iOS & macOS.
Independent developer since 2011.
Apps
Qrafter
QR Code Scanner & GeneratoriOSThe most powerful QR code companion since 2011. Scan, create, and manage QR codes with custom designs and enterprise-grade encryption. It has a free online generator too.
Junkman
Smart SMS BlockeriOSIntelligent SMS filtering powered by on-device machine learning. Block spam before it reaches your inbox, without sending your data anywhere.
Begone
Spam Call BlockeriOSA powerful call blocker with intelligent wildcard filtering. Protect yourself from robocalls and spam with community-powered block lists.
PSWD
Password GeneratoriOS · macOSGenerate strong, unique passwords instantly. Simple, fast, and completely offline. Your passwords never leave your device.
Tools
ASCelerate
App Store Connect CLIOpen sourceA Swift CLI for the entire App Store release pipeline. Create versions, upload builds, manage screenshots, update localizations, and submit for review, all from the terminal.
Featured Posts
If you've ever shipped an iOS app, you know the ritual. Open Xcode, archive, wait, open App Store Connect in the browser, click through a dozen screens to set up localizations, upload screenshots one…
UPDATE: I researched a little more on this. ipv6 connections require 1280 as the minimum MTU and most router configurations expect to see some standardized MTU. So instead of 1412 as I wrote below,…
Posts
After running WordPress since 2006, a Cloudflare incident during a theme redesign was the nudge to admit my blog no longer needed to be dynamic. So I rebuilt it as a static Astro site.
GÜNCELLEME: Artık bu çözüm yerine AmneziaWG kullanmanızı öneririm. udp2raw yerine onu kullanıyorum ve sorunsuz çalışıyor. Yıllardır çeşitli servis sağlayıcılarda Wireguard protokolüne bant sınırlaması veya topyekün yasak bulunuyor. Büyük ihtimal ticari VPN servislerinin Wireguard protokolünü…
Every device in my home theater shows up in the Home app — the lights, the Apple TV, the PS5, except the one screen everything actually plays on: the projector. A Sony VPL‑XW5100 sits…
I moved this site from keremerkan.net to keremerkan.dev. All old links redirect automatically: bookmarks, search results, and shared URLs will keep working. Why the Change I've had keremerkan.net since 2006 and it served me…
I wasn't able to find good instructions to fill out W-8BEN-E form for Apple Developer and Google AdMob/AdSense. There were some partial information on different sources, but all information was vague especially for part…