Clockrift: Cron Simulator app icon

Developer Tools · iPhone & iPad

Clockrift: Cron Simulator

Find DST & Overlap Risks

$2.99iPhone & iPadData Not Collected

Inside the app

A closer look.

Clockrift: Cron Simulator screenshot 1
iPhone 6.7"
Clockrift: Cron Simulator screenshot 2
iPad Pro 12.9" (3rd gen)
Clockrift: Cron Simulator screenshot 3
iPhone 6.7"
Clockrift: Cron Simulator screenshot 4
iPad Pro 12.9" (3rd gen)
Clockrift: Cron Simulator screenshot 5
iPhone 6.7"
Clockrift: Cron Simulator screenshot 6
iPad Pro 12.9" (3rd gen)
Clockrift: Cron Simulator screenshot 7
iPhone 6.7"
Clockrift: Cron Simulator screenshot 8
iPad Pro 12.9" (3rd gen)

About this app

Made for a clear purpose.

Clockrift is a local recurring-job rehearsal tool for developers, operators, data teams, and automation owners who need to reason about time before a schedule fails.

Screen recurring work against DST windows, duration, cadence, and the recovery semantics that schedulers often leave implicit.

KEY FEATURES - 24-hour execution clock - DST risk scoring - Duration and frequency overlap model - Local-versus-UTC intent record - Idempotency and retry notes - Owner and status workflow - CSV schedule import - Portable review export - Local PDF and JSON export - 110 original offline technical plates - No account, ads, analytics, tracking, IAP, or subscription

Clockrift is a planning model, not a scheduler. Runtime behavior varies by cron implementation, operating system, orchestrator, timezone database, retry policy, clock source, and workload. Verify the deployed scheduler and test transition dates directly.