# RIGOR

> Digital checklist system for verifiable compliance and operational excellence. (iPhone/iPad app by Check-6 International Inc..)

- Source: https://appshunter.io/ios/app/rigor/id923027622 (this page in markdown: same URL + `.md`)
- Developer: [Check-6 International Inc.](https://appshunter.io/developer/1008803528)
- Category: Productivity, Business
- Price: Free
- Rating: 4.20/5 from 15 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 7 MB
- Languages: English
- Released: 2014-10-12
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/rigor/id923027622/reviews.md

## What is RIGOR?

RIGOR is a Digital Checklist System that ensures verifiable compliance with standard procedures and produces reliable operations (i.e. predictable, safe, efficient operations based on best practices).  By applying RIGOR, procedures can be translated into aviation-quality checklists that can be executed with NASA precision.  The use of Notes, Cautions, and Warnings unites safety and operations at the time and place of task performance.  As checklists are executed, steps are time-stamped with who performed the action to provide accountability.   Additionally, user-entered performance data, captured images/videos, and time-to-complete are tracked and stored as part of every checklist record. This operational feedback is critical to reducing waste and variance and ensuring efficiency and quality goals are achieved and sustained. RIGOR provides all resources required to do the job right the first time – every time, making checklists the key to increased safety, efficiency, and reliability in your precision operations.  

Visit www.rigorinsights.com or www.checksix.com for additional information.

NOTE:  RIGOR is only operational when used in conjunction with user accounts administered by Check-6 Inc..  DO NOT DOWNLOAD APP PRIOR TO CONTACTING CHECK-6.

## Key features

- Aviation-quality checklists
- Verifiable compliance tracking
- Time-stamped accountability
- Performance data capture
- Image and video recording
- Operational feedback analysis

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/rigor/id923027622/reviews.md

### 5/5 — Outstanding improvements--reliable and intuitive

*2016-11-16*

RIGOR is intuitive and easy to use to achieve great results every time I perform a task. Great job by our programming team!

## Frequently asked questions about RIGOR

### How does RIGOR ensure operational reliability?

RIGOR translates procedures into precise checklists, ensuring every step is followed with time-stamped accountability. It captures performance data, images, and videos to provide critical operational feedback for sustained efficiency and quality.

### Is RIGOR available for offline use?

The provided description does not specify offline functionality. However, its focus on capturing data like time-stamps, images, and videos suggests an active connection may be required for full operation and data synchronization.

### What kind of user accounts are needed for RIGOR?

RIGOR is only operational when used in conjunction with user accounts administered by Check-6 Inc. Users are advised to contact Check-6 before downloading the app.

### What devices does RIGOR support?

RIGOR is supported on iPhone, iPad, and iPod devices, indicated by its compatibility with iOS.

### How often is RIGOR updated?

The latest version is 5.2.0, last updated on April 14, 2026. This indicates a history of regular updates, suggesting ongoing development and maintenance.

### What is the age rating for RIGOR?

RIGOR has an age rating of 4+, making it suitable for a wide range of users.

### Does RIGOR have ads?

No, RIGOR does not contain advertisements. The app is free to download and use without ad interruptions.

### Where can I find more information about RIGOR?

Additional information about RIGOR can be found on the official websites: www.rigorinsights.com and www.checksix.com.

## Version history (last 5 releases)

### 5.2.0 — 2026-04-14

- App now automatically syncs on login and when checklists are paused, completed, or canceled.
- When file uploads are required, users now required to take a picture in the moment, rather than access saved images in the device library.
- Bug fixes

### 5.1.0 — 2024-11-14

The following feature updates came through direct feedback/requests from our many valued customers:



- Improved synchronization performance
- Enhanced barcode and QR scanning
- Several bug fixes

### 5.0.0 — 2024-06-19

The following feature updates came through direct feedback/requests from our many valued customers:

- Paused instance completed during syncs were not allowing completion of checklist
- Multiple hazard icons on phone not wrapping
- Other bug fixes

### 4.12.0 — 2023-09-26

The following feature updates came through direct feedback/requests from our many valued customers:
- Text box now correctly displays all text whether stand-alone or nested within accordions and/or decision points
- Multiple bug fixes and other UI improvements/enhancements

### 4.11.0 — 2023-05-05

The following feature updates came through direct feedback/requests from our many valued customers:
- Email notifications for other user assigned/completed checklists and assigned/completed checklist step(s) provide hyperlink directly to that checklist
- Eliminated self-assigned checklist email notifications
- Fewer password entry/confirmation steps to logon when changing/updating password
- All password entry fields provide "eyeball" icon to toggle show/hide password characters making password entries easier
- Multiple bug fixes and other UI improvements/enhancements

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## Related topics

[rigor](https://appshunter.io/ios/topics/rigor)

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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 2026-06-10.*