Why Apple Signing Certificates Break Production Builds, and How Automatic Renewal Prevents It
Everton Park, Australia - August 17, 2026 / Corefuse Technologies Pty Ltd /
Apple's code signing system is one of the few parts of shipping an iOS or macOS app that can stop a release with no warning. A distribution certificate reaches its expiry date, the provisioning profiles that depend on it stop validating, and the next production build fails in continuous integration with an error that names a file rather than the actual cause. The fix is usually simple. Finding it, at the moment a release is already blocked, is not.
HexSign is a hosted service built to remove that failure mode. It combines three things Apple platform teams have generally had to assemble for themselves: an encrypted vault for signing material, a dashboard that maps every certificate, provisioning profile, bundle identifier, and registered device across every connected Apple Developer account, and a command line tool that delivers signing assets into any CI pipeline. It is available now at hexsign.io.
Certificates that renew themselves
The central capability is automatic renewal. HexSign reissues distribution certificates and provisioning profiles 30 days before they expire, without anyone opening the Apple Developer portal. The replacement certificate keeps the existing private key, so the signing identity does not change, and profiles that referenced the previous certificate are rebuilt against the new one during the same daily run. When Apple rejects a renewal, HexSign emails the account administrators with Apple's exact reason rather than failing quietly.
Renewal is paired with alerting rather than replacing it. Teams set expiry warnings at 7, 14, 30, 60, or 90 days and route them to email, Slack, Microsoft Teams, Jira, Jira Service Management, PagerDuty, or incident.io. Alerts can be tested before they are switched on. Automatic renewal covers the routine work, and alerts catch the rarer cases that genuinely need a person.
A vault, not a git repository
The established way to share signing material across a team is to encrypt it and commit it to a repository. That approach works, and it is widely used, but it places the team's certificates and private keys inside version control, protected by a passphrase that circulates among developers and CI systems, with no record of who used what.
HexSign replaces that pattern with managed storage. App Store Connect API keys are held in AWS Secrets Manager under a customer-managed key. Private keys for certificate signing requests are protected with envelope encryption through a dedicated AWS KMS key. The database runs inside a private VPC with encryption at rest and no public endpoint. P12 bundles are reconstructed on demand and never stored in assembled form.
The service is built on Apple's official App Store Connect API, and the sync is read-only by default. Creating a certificate, regenerating a profile, registering a device, or revoking anything is always an explicit action, never something the system decides on its own. Each of those actions is written to an append-only audit log.
Bring your own CI
The HexSign CLI exists so that adopting a vault does not mean adopting a new build system. It pulls certificates and provisioning profiles from the vault directly into a pipeline: GitHub Actions, GitLab CI, Bitrise, Codemagic, Jenkins, CircleCI, fastlane, or a plain shell script. There is no certificate repository to clone and no shared Apple ID to hand around.
The binaries are zero-config. Developers authenticate locally through OAuth with PKCE, and CI systems use scoped client credentials rather than an individual's account. Every command can emit JSON, so results pipe cleanly into jq and into tooling teams already run. The CLI covers the same surface as the dashboard: certificates, provisioning profiles, bundle identifiers and capabilities, device registration by UDID, certificate signing request generation, and Apple account sync.
Visibility across every account
Teams running more than a handful of apps often cannot answer a basic question: which certificate is this profile actually built on, and what breaks when it expires. HexSign answers it with an interactive relationship graph connecting certificates, profiles, bundle identifiers, and devices, color-coded by health, where clicking any node highlights its full dependency chain.
The dashboard adds a health score, analytics on how signing assets change over time, and a sync history recording what changed on each run and how long it took. Access is governed by role-based permissions across owner, admin, and member roles, sign-in is protected by multi-factor authentication, and per-user authentication activity is recorded for audit purposes.
Who it is built for
HexSign supports iOS, macOS, tvOS, and watchOS, and is designed for the full range of teams shipping Apple software: solo developers with a couple of App Store apps, agencies managing separate Apple Developer accounts on behalf of clients, and enterprises running dozens of bundle identifiers across multiple platforms. Multiple Apple Developer accounts are managed from one dashboard.
Availability
HexSign is available now at hexsign.io, including a 14-day trial. Setup requires an App Store Connect API key and no changes to an existing build pipeline. Documentation, a help center, and a technical glossary covering Apple signing concepts are published on the site.
About HexSign
HexSign is a secure vault, dashboard, and command line tool for Apple code signing. It keeps certificates and provisioning profiles encrypted in managed storage rather than in source control, renews them automatically before they expire, and delivers them into any continuous integration pipeline on demand. The service is built on Apple's official App Store Connect API. More information is available at https://hexsign.io.
Media contact: info@hexsign.io
Contact Information:
Corefuse Technologies Pty Ltd
Level 1, 8 McPherson St
Everton Park, QLD 4053
Australia
Ash Danesh
61
https://hexsign.io
