Mastermind vs Timeusb
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Mastermind
This app offers a sanctuary for mental well-being, providing curated exercises to reduce anxiety, alleviate depression, and conquer insomnia. Explore tailored categories and a comprehensive exercise collection to nurture your mind and reclaim joy.
- Anxiety reduction exercises
- Depression alleviation tools
- Insomnia relief techniques
- Guided meditations
- Mindful breathing exercises
- Mood-boosting activities
- Sleep improvement rituals
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Welcome to Mastermind – your ultimate companion for cultivating a healthier mind and a more enjoyable life. Designed with care and expertise, Mastermind offers a sanctuary of solace where individuals can embark on a transformative journey towards: - Reducing anxiety - Alleviating depression - Conquering insomnia. Dive into our curated collection of exercises meticulously crafted to nurture your mental well-being. Explore three distinct categories tailored to address the unique challenges of anxiety, depression, and insomnia. With each category thoughtfully designed to offer a comprehensive approach to mental wellness, Mastermind empowers you to take charge of your emotional health and reclaim joy in everyday living. In the Anxiety Relief category, discover a sanctuary of serenity where stress melts away and tranquility takes center stage. Unwind with calming meditations, soothe your mind with mindful breathing exercises, and find peace amidst life's chaos with relaxation techniques proven to soothe frazzled nerves. In the Depression Relief category, find solace and support as you navigate the complexities of mood and emotion. Engage in mood-boosting exercises, practice self-compassion through journaling prompts, and foster resilience with activities designed to inspire hope and positivity in times of darkness. In the Sleep Improvement category, embark on a journey towards restful nights and rejuvenated mornings. Establish healthy sleep habits with bedtime rituals, unwind with guided sleep meditations, and create a sleep-friendly environment conducive to blissful slumber and vibrant awakenings. But that's not all. With our All Exercises category, the possibilities are endless. Explore, experiment, and discover the exercises that resonate most with you. Tailor your experience to suit your unique needs and preferences, and watch as your mind blossoms and your life transforms. Join us on this empowering quest to nurture your mental health, embrace joy, and cultivate a life of fulfillment and vitality. Download Mastermind today and embark on a journey towards a healthier mind and a brighter tomorrow. Secure & Private Your privacy is important. All data is securely stored and encrypted. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Timeusb
Monitor your battery's real-time status, including SOC, voltage, current, and temperature. Get estimated charging completion and remaining usage times to manage your power efficiently and support a low-carbon lifestyle.
- Real-time SOC monitoring
- Voltage and current tracking
- Temperature monitoring
- Estimated charging completion
- Remaining usage time estimation
- Bluetooth connectivity
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Connect to your battery via Bluetooth for real-time monitoring of SOC, voltage, current, power, temperature, and charge-discharge cycles. Easily track battery status and get estimated charging completion and remaining usage times. We are dedicated to providing high-quality lithium batteries and exceptional service to customers worldwide, supporting a better and more convenient low-carbon lifestyle.
Screenshots
Verdict
The clearest difference is review sentiment: Mastermind at 100% against Timeusb's 0%. Mastermind also leads on rating (4.5 vs 2.3) and update cadence (daily vs every 9 months). On price, ratings volume, 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.
Mastermind holds the better App Store score, 4.5 against 2.3. Both are backed by a comparable volume of ratings — 6 and 3 respectively. Written reviews point the same way: 100% of Mastermind's written reviews are positive against 0% of Timeusb's.
Mastermind ships an update daily, Timeusb every 9 months. Both last shipped on November 4, 2026.
| Parameter | Mastermind | Timeusb |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (6 ratings) — better | 2.3 (3 ratings) |
| Positive reviews | 100.0% of reviews — better | 0.0% of reviews |
| Number of ratings | 6 — better | 3 |
| Update frequency | Daily — better | Every 9 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.4 | 13.0 — better |
| Further details — not scored | ||
| Size | 27 MB | 53 MB |
| Age rating | 4+ | 17+ |
| Developer | Elvis Baltais | Timeusb |
Customer experience
Mastermind
Timeusb
In-app purchases
Mastermind
No in-app purchases
Timeusb
No in-app purchases









