Principles In Action vs MentorCruise
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Principles In Action
Explore life and work principles from a renowned investor through interactive case studies, video footage, and assessments. Discover personalized guidance and compare insights with friends to achieve your goals.
- Interactive case studies
- Behind-the-scenes video footage
- PrinciplesYou Assessment
- Personality test
- Daily principle from Ray
- Digital 'Coach' for principle guidance
- Personal principle development section
Read full descriptionHide full description
Principles In Action is a free app that brings to life Ray Dalio’s best-selling book Principles: Life & Work. It combines the complete text of the book with behind-the-scenes video footage and interactive case studies of the principles in action during his time leading Bridgewater Associates Ray is one of the world’s most successful investors and entrepreneurs, and he’s sharing the unconventional principles that helped him create unique results in life and business because he believes they can help any person or organization better achieve their goals. In addition to the book and supporting cases, the app also includes: • Take the PrinciplesYou Assessment in app to view results and add friends to compare. • Compare your assessment with your friends and see their results. • Read Ray's latest articles and reflections on the economy and markets. • Daily principle from Ray to help you get more out work and life. • Highlighted case-of-the-week and related principles. • Search function across all content in the app, including the full set of principles. • Converse with Digital Ray, Ray's AI twin which has been trained on tens of thousands of items from Ray's content library. • Dedicated section in the app for you to highlight, favorite, develop and record your own and others’ principles. • Additional content from Ray including studies on economics along with regular long form articles published on social media. Principles: Life & Work has been recommended by Bill Gates, Arianna Huffington, Marc Benioff, Mark Cuban, Mike Bloomberg, Gwyneth Paltrow, Kevin Systrom, Jamie Dimon, and others.
MentorCruise
Access all your mentorships in one convenient location. This app connects mentors and mentees, providing focused knowledge and push notifications for seamless communication. Elevate your career development by managing all your mentoring relationships efficiently.
- All mentees and mentors in one place
- Push notifications for chats
- Focused knowledge access
- Manage mentoring relationships
- Career advancement tool
Read full descriptionHide full description
Level up your mentorships with the official MentorCruise mobile app. The MentorCruise mobile app brings together your mentorships in one place. No matter whether you are a mentor, a mentee, or both at the same time! - All your mentees and mentors in one place - Push Notifications for your chats - Focused knowledge in your pocket Love, Your trusted source to find highly-vetted mentors & industry professionals to move your career ahead.
Screenshots
Verdict
The clearest difference is review sentiment: Principles In Action at 80% against MentorCruise's 0%. Principles In Action also leads on ratings volume (6.1K vs 43) and rating (4.9 vs 4.6). On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Principles In Action holds the better App Store score, 4.9 against 4.6. That said, the two scores are not equally well evidenced: Principles In Action has 6.1K ratings behind it against 43, so its average is the more settled of the two. Written reviews point the same way: 80% of Principles In Action's written reviews are positive against 0% of MentorCruise's.
Both ship on a similar rhythm, roughly every 3 months. The most recent releases landed on November 6, 2026 and November 7, 2026 respectively.
| Parameter | Principles In Action | MentorCruise |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (6.1K ratings) — better | 4.6 (43 ratings) |
| Positive reviews | 80.3% of reviews — better | 0.0% of reviews |
| Number of ratings | 6.1K — better | 43 |
| Update frequency | Every 3 months | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 180 MB | 42 MB |
| Age rating | 9+ | 4+ |
| Developer | PRIOS, LLC | MentorCruise Inc. |
Customer experience
Principles In Action
MentorCruise
Bugs and requests
Principles In Action
Reported bugs
4 issues- Frequent crashes
- Inability to open book or case studies
- Lost progress and saved data
- Compatibility issues with older devices
Requested features
4 requests- Dark mode option
- Ability to export user-added principles
- Improved sync across devices
- Better integration with book content
MentorCruise
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Principles In Action
No in-app purchases
MentorCruise
No in-app purchases
Questions
Is Principles In Action free?
Is MentorCruise free?
Which has better reviews, Principles In Action or MentorCruise?
Do Principles In Action or MentorCruise have ads?
Which is updated more often, Principles In Action or MentorCruise?
Other comparisons
