The Source. vs Crux
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
The Source.
This personal development app offers mentorship and a supportive community to help users achieve self-improvement and personal growth. It provides structured sessions, challenges, and tools to track progress, build habits, and unlock full potential.
- Mentorship from global human performers
- Supportive community for goal achievers
- Personalized growth sessions and challenges
- Daily activity tracking and habit building
- Earn rewards (Dynamite coins, gratitude coins)
- Live discussions and expert interaction
- Progress reflection and insight sharing
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The Source is a unique new Personal Development app covering Self Development, Personal Growth, and Self Improvement under the mentorship of one of the world's top global human performers, Kim Calvert. With its extensive content, The Source provides a community of like-minded people, all encouraging you towards success. The Source is perfect for both professional goal achievers and those with a personal goals they want to achieve. All the features are designed to help you achieve growth and build a new self-image to bring you a unique, confident personality. Whether it is the basic high-end mentoring or elite mentorship you are seeking, The Source will provide the perfect solution for all levels. Explore the many available source sessions provided at different levels and interact and engage with our team of qualified experts and other community members, all cheerleading you on to new success levels. Dive into topics that resonate with you and unlock your full potential—guided and mentored by Kim Calvert and her team of experts to open self-development horizons. Dynamite Lifestyle believes that all success starts from having key fundamentals in place that The Source outlines in a simple and easy-to-follow pathway. Therefore, within The Source, you can keep track of your daily activities and be rewarded for your actions by earning Dynamite coins for your efforts while also building great habits that can be used in all walks of life. Follow and engage in a range of the challenges given to you to help bring the best version of you to the forefront. With us, you can dig deep into your deepest wish and work under the supervision of mentors who have studied this content for years. All the events are updated within the app, where you can join live discussions, connect with like-minded individuals, and exchange ideas. Engage in meaningful conversations that foster personal growth and discover fresh perspectives of thinking bigger and setting new goals that many consider impossible. With easy daily use, you develop into a confident personality who is always inspired to try new and innovative ideas. Capture your iconic moments and reflect on your progress, leading to massive awareness of your ability. Share your emotions, experiences, and newfound insights. Write down your intentions before or after completing tasks, ensuring your choices align with your actions. Get gratitude coins for providing value and support to others as you grow. Join The Source today and unlock your full potential. Create the life you've always desired, and start working on new Bigger Goals that will inspire you to wake up daily with a purpose. You may purchase an auto-renewing subscription through an In-App Purchase. * Auto-renewing Subscription * £99 Per Month * Your iTunes account will be charged upon purchase confirmation. The subscription will automatically renew based on the chosen duration unless auto-renewal is disabled at least 24 hours before the current period ends. * Please note that cancellation of the ongoing subscription is not possible during its active period. However, you can control your subscription and turn off auto-renewal by accessing your iTunes Account Settings post-purchase. Read more about our Terms of Use and Privacy Policy. Terms of Use: https://source.dynamitelifestyle.com/terms-and-conditions Privacy Policy: https://source.dynamitelifestyle.com/privacy-policy
Crux
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Crux — AI Decision Coach The decisions that shape your life rarely have clean answers. Whether to take the role. Whether to make the move. Whether to have the conversation. Whether to draw the line. Crux is built for these moments. It's an AI decision coach that uses a structured five-stage framework to help you think through complex choices with rigour and honesty. This isn't a chatbot. Crux draws out your own thinking first, then challenges it. It engages with the trade-offs you're actually weighing — including the uncomfortable ones — without moralising or hedging. TWO WAYS TO USE CRUX Start a Crux (20-30 minutes) — For decisions that deserve the space. A deep, structured coaching session that maps your options, builds interactive impact cards, stress-tests your thinking, and helps you commit with clear reasoning. Quick Crux (5-10 minutes) — For decisions you need to make today. Five sharp questions that draw out your thinking, challenge weak reasoning, and help you commit with confidence. If the decision turns out to be bigger than expected, Crux offers to switch to a full session automatically. WHY CRUX INSTEAD OF A CHATBOT? Chatbots give you the answers they think you want to hear. Crux helps you think. Where a general AI will happily tell you what to do, Crux uses a structured framework to draw out your own thinking, challenge your assumptions, and surface the trade-offs you're actually weighing. Your decisions deserve more than a quick chat. THE FRAMEWORK Build — Map the options as you see them Assess — Work through the upsides, downsides, and trade-offs of each path with interactive cards Test — Stress-test your thinking against five challenges designed to surface blind spots Decide — Compare what survives and identify the path that's emerging Commit — Own the decision with reasoning you can stand behind DESIGNED FOR REAL DECISIONS Career moves and direction changes. Relationship and family choices. Financial commitments and investments. Relocation and major moves. Difficult conversations. Business partnerships and obligations. Anything where the stakes are real and the answer isn't obvious. WHAT MAKES IT DIFFERENT Asks before it suggests — your thinking comes first. Engages with grey areas and complex trade-offs. Interactive option cards you control and calibrate. Brings real knowledge when you ask for it. Designed for adults navigating adult choices. Grounded in decision-making research from Chip and Dan Heath, Daniel Kahneman, and Gary Klein. PRIVACY-FIRST Decisions stay on your device. No ads. No data sales. No tracking. Your decision history is protected by Face ID. Anonymous analytics only — opt out anytime. Sign in with Apple keeps your account simple. Crux is free at launch.
Screenshots
Verdict
The clearest difference is in-app purchases: Crux at none against The Source.'s 3. The Source.'s advantage is device support (3 vs 1) and iOS requirement (15.6 vs 26.2). On price, update cadence and ads 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. The Source. sells 3 in-app purchases, starting at $49.00 per month. Crux asks for nothing beyond the download.
The Source. ships an update every 2 weeks, Crux every 11 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | The Source. | Crux |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (8 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Every 2 weeks | Every 11 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 26.2 |
| Further details — not scored | ||
| Size | 77 MB | 52 MB |
| Age rating | 4+ | 17+ |
| Developer | Dynamite Lifestyle | Matthew Chrisp |
In-app purchases
The Source.
- Science of Becoming Rich Quest$49.001 Month
- The Source Mini Plan$49.001 Month
- The Source Plan$99.991 Month
Crux
No in-app purchases









