Brainwaves vs Simple percentage
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Brainwaves
This app uses science-backed binaural beats to guide your brain into desired states like deep sleep, sharp focus, or calm. It offers over 500 precision sessions for sleep, focus, relaxation, and consciousness exploration without requiring meditation experience. Just use headphones for 15-60 minutes to experience its benefits.
- Science-backed binaural beats
- 7 brainwave bands (Delta to Epsilon)
- Signature sessions for focus, sleep, and calm
- Sleep aid and insomnia relief
- Focus aid and brain fog reduction
- Anxiety calm and stress relief
- Consciousness exploration features
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Step inside your mind. Foggy mornings, wired midnights, the 3 PM crash in between, your brainwaves are stuck out of sync, and sound can shift them back. Science-backed binaural beats guide your brain into deep sleep, sharp focus, calm, recovery, or states beyond ordinary awareness. No meditation. No pills. Just headphones and 15 to 60 minutes. Stanford neuroscientist Dr. Andrew Huberman has publicly discussed 40 Hz gamma binaural beats as a tool for focus and concentration. That is the science Brainwaves is built on. 7 BRAINWAVE BANDS, DELTA TO EPSILON Delta for deep sleep. Theta for dreaming. Alpha for calm. Beta for focus. Gamma for peak cognition. Epsilon for deep transcendence. SIGNATURE SESSIONS Deep Gamma Focus (40 Hz Gamma): sharp attention and working memory. Deep Sleep Night (Theta): drift into deep sleep faster. Ultra Sleep System (Delta 2 Hz): slow-wave sleep for physical restoration. Nervous System Reset (Alpha 10 Hz): calm stress, restore balance. Flow State Engine (Alpha 11 Hz): peak flow for deep work. Serotonin Release (Alpha 10 Hz): lift mood, ease tension. SLEEP AID AND INSOMNIA RELIEF Fall asleep faster and stay asleep. Delta journeys (0.5 to 4 Hz) for racing thoughts, 3am wake-ups, stress, late-night screens, and jet lag. A drug-free sleep aid for people who have tried everything. FOCUS AID AND BRAIN FOG Cut through fog with beta and gamma sessions (13 to 40 Hz). Sharpen clarity for deep work, study, and mental fitness. ANXIETY CALM AND STRESS RELIEF Alpha and theta soundscapes (4 to 12 Hz) ease tension and rebalance your nervous system. No meditation experience needed. HEALTH AND RECOVERY Solfeggio frequencies layered with brainwave audio for whole-body reset and recovery from burnout. CONSCIOUSNESS EXPERIENCE, EXCLUSIVE TO BRAINWAVES Beyond sleep and focus, Brainwaves is built for altered states of consciousness you will not find in other brainwave apps. Astral Projection: guided exploration beyond the limits of the physical. Remote Viewing: expand perception beyond ordinary sight and strengthen intuition. Lucid Dreaming: become aware inside your dreams and learn to steer them. Fifth Dimension: transcend ordinary perception. Gamma and Epsilon Journeys: expanded awareness and deep transcendence. 963 Hz Pineal Gland Activation: the God Frequency, for deep meditation, whole-brain coherence, and higher states of awareness. WHY BRAINWAVES 500+ precision sessions across sleep, focus, relaxation, spiritual exploration, and health. EEG-mapped frequencies: science-informed design, not random tones. Personalized journeys: tell us your goals, we guide your first session. Offline listening and Family Sharing: download favorites and share with your family. Free trial: try it before you commit, cancel anytime. WHAT TO EXPECT Night 1 to 3: the beat gives your attention somewhere to go, so it is easier to switch off. By day 4 to 7 you reach sleep, focus, or calm faster, and from week 2 the state holds longer. Individual results vary. WHO IT IS FOR You have tried meditation apps and they did not stick. You want a drug-free sleep, focus, or recovery aid. Brainwaves was made for you. SAFETY Headphones or earbuds are required. Do not listen while driving or operating machinery. SUBSCRIPTION TERMS Begin with a free trial. Your subscription automatically renews 24 hours before the end of each billing period and is charged through your iTunes account. Cancel anytime before the trial ends and you will not be charged. Turn off automatic renewal anytime in your account settings. No refund for unused portions. Privacy Policy: http://www.imoblife.net/PrivacyPolicy/ Terms of Service: http://www.imoblife.net/PrivacyPolicy/Terms_of_Use.html Disclaimer: Brainwaves is a wellness tool supported by neuroscience research. Not a medical device. Consult your physician for clinical conditions.
Simple percentage
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Simple Percentage is a fast, elegant percentage calculator for iOS. Designed with clarity and speed in mind, it delivers instant results as you type. Just enter any two values — the third is calculated automatically. Adjust inputs freely in any direction and see results update immediately. Features: Real-time calculations with zero delay Calculate in any direction (no fixed formula flow) 6 precision levels: .0 · .00 · .000 · .0000 · .00000 Optimized, comfortable keypad Clean, distraction-free interface Instant feedback while fine-tuning values Minimal input. Immediate results. Built for focus and speed on iOS.
Screenshots
Verdict
The clearest difference is price: Brainwaves at Free against Simple percentage's $0.99. Brainwaves also leads on update cadence (weekly vs every 10 months). Simple percentage's advantage is in-app purchases (none vs 10) and iOS requirement (11.0 vs 16.0). On ads and device support 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
Brainwaves is free to download; Simple percentage costs $0.99 up front. Brainwaves sells 10 in-app purchases, starting at $12.99 per month. Simple percentage asks for nothing beyond the download.
Brainwaves ships an update weekly, Simple percentage every 10 months. The most recent releases landed on November 9, 2026 and November 2, 2026 respectively.
| Parameter | Brainwaves | Simple percentage |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 4.4 (3.3K ratings) — better | — |
| Positive reviews | 76.4% of reviews | — |
| Number of ratings | 3.3K — better | — |
| Update frequency | Weekly — better | Every 10 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 267 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | iMobLife Inc. | andrzej kar |
Bugs and requests
Brainwaves
Reported bugs
4 issues- Subscription issues and inability to cancel
- Tracks randomly stopping or skipping
- Inconsistent performance across devices
- Syncing problems between app and website
Requested features
5 requests- Ability to create and save custom playlists
- Option to loop tracks or set sleep timers
- Better search and filtering capabilities
- More detailed information about each track
- Integration with other health/wellness apps
Simple percentage
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Brainwaves
- Discover the Science of Sound14 Days trial$12.991 Month
- Brainwaves special offer$12.991 Month
- Monthly Subscription3 Months trial$12.991 Month
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- Brainwaves special offer$14.991 Month
- Brainwaves Special Offer$34.991 Year
- Optimize Your Focus7 Days trial$37.991 Year
- Annual Premium$47.991 Year
- Yearly Premium7 Days trial$48.991 Year
- Yearly Special Offer$49.991 Year
- Premium for Spiritual Healing7 Days trial$59.991 Year
Simple percentage
No in-app purchases
Questions
Is Brainwaves free?
Is Simple percentage free?
Do Brainwaves or Simple percentage have ads?
Which is updated more often, Brainwaves or Simple percentage?
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