# CronMaster — Cron Tester & Next-Run Preview

> Cron Tester & Next-Run Preview (iPhone/iPad app by 如飞 苏.)

- Source: https://appshunter.io/ios/app/cronmaster/id6820342237 (this page in markdown: same URL + `.md`)
- Developer: [如飞 苏](https://appshunter.io/developer/1890421589)
- Category: Developer Tools, Productivity
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 15.0 · 22 MB
- Languages: American English
- Released: 2026-10-20
- Data updated: 2026-11-06

## What is CronMaster?

CronMaster is a local-only cron toolkit for developers and ops.

Write or paste an expression, read it in plain English, and see the next run times instantly — before you ship it to production.

WHAT YOU GET
• Multi-engine support: Linux crontab, Quartz, Spring @Scheduled, Kubernetes CronJob, AWS EventBridge, Jenkins, GitHub Actions
• Natural-language description of any expression
• Next / previous run previews with timezone control
• Visual builder for 5-field engines
• Template library (CI/CD, backups, reports, and more)
• History, folders, notes, and Home Screen widget
• Offline — no account, no cloud sync

FREE
• Linux editor, descriptions, next runs, 5 history items, read-only templates

PRO (one-time unlock)
• All engines + cross-engine conversion
• Unlimited history, folders, notes & stars
• Editable templates, batch check, import/export
• Enhanced preview & text share pack

Privacy-first: your expressions stay on your device.

Privacy Policy: https://hairuizhi-cn.github.io/cronmaster-privacy/
Terms of Use: https://hairuizhi-cn.github.io/cronmaster-privacy/terms.html

Questions? Contact us at 1095288658@qq.com

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| CronMaster Pro | $1.99 | one-time |


## Is CronMaster safe?

Not enough ratings yet to assess CronMaster.

## Is CronMaster legit?

CronMaster appears legitimate, with a few gaps. The AppsHunter Legitimacy Score for CronMaster is 65 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 4 releases)

### 1.0.3 — 2026-11-02

• Fixed an issue that could prevent cron reminders from running beyond the first three scheduled times.
• Improved notification permission handling and made reminder updates more reliable when editing, deleting, or importing schedules.
• Significantly faster handling of impossible dates, including February 29, 30, and 31.
• Improved backup reliability and purchase error handling.

### 1.0.2 — 2026-10-27

• Faster first launch with next-run previews right away
• Fixed cron engine detection for reminders and widgets
• Improved the Pro upgrade flow and purchase error feedback
• Notification permission is now requested only when enabling reminders
• Polished batch-check results and overall usability

### 1.0.1 — 2026-10-22

Version 1.0.1

NEW
• Schedule Doctor — automatically catches schedules that will never run,
  leap-year pitfalls, day-of-month/weekday OR traps, redundant steps, and
  Quartz "L" overrides across all 7 supported engines
• Next-Run Reminders — get a local notification before your cron job fires.
  100% on-device, no account, no cloud
• Smarter Home Screen Widget — now syncs automatically as you edit and shows
  a live countdown to the next run, fully localized

IMPROVEMENTS
• Visual Builder rebuilt for faster, clearer field editing
• Import now merges and deduplicates your history and templates
• Added a Siri Shortcuts setup guide

FIXES
• Restore Purchases is now fully reliable, and Pro status is recovered
  automatically after reinstalling
• Fixed the "How to Use" guide appearing on every launch

### 1.0 — 2026-10-21

No release notes.

## More apps by 如飞 苏

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- [MigraineTrack](https://appshunter.io/ios/app/migrainetrack/id6824904595)
- [Pip: Food Manager Prep](https://appshunter.io/ios/app/pip-food-manager-prep/id6826058096)

All apps by 如飞 苏: https://appshunter.io/developer/1890421589

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-06.*