HemiSync vs Prognosticator AI
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HemiSync
This app generates binaural beats and isochronic tones to aid in meditation and relaxation. Explore various sound frequencies and pre-set combinations for personal wellness routines, with customizable timers and controls.
- Binaural beat and isochronic tone generation
- Customizable frequency ranges (Delta, Theta, Alpha, Beta, Gamma)
- Pre-configured audio presets
- Session timer functionality
- Solfeggio frequency options
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Explore Audio Frequency Meditation HemiSync is an audio frequency generator that creates binaural beats and isochronic tones for meditation and relaxation practice. The app allows you to experiment with different sound frequencies that some users find helpful for their personal wellness routines. What This App Does: Generates customizable audio tones and beats Offers preset frequency combinations based on popular meditation practices Provides session timers and audio controls Includes binaural beat and isochronic tone generation modes Features: Frequency range selection (Delta, Theta, Alpha, Beta, Gamma) Adjustable beat frequencies and carrier tones Pre-configured audio presets Session timer functionality Solfeggio frequency options (396Hz, 417Hz, 432Hz) Please Note: This app is for entertainment and personal exploration purposes. It generates audio tones based on concepts from audio meditation practices. Any effects experienced are subjective and individual. Privacy Policy - https://enginezero.tech/app-privacy-policy/ Terms of Use (EULA) - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Prognosticator AI
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Prognosticator helps you make smarter predictions about the future. You type a forecast in plain language, and the AI turns it into a clean version with a title, deadline, chance of happening, and key reasons. You can edit or approve it before publishing. When your forecast’s deadline arrives, you mark if it was True, False, or Partly True. The app then learns from your results to give better suggestions next time. It’s “AI-driven” because the system doesn’t just help with text — it helps structure your forecast, suggest probabilities, and improve over time. But you stay in control: you decide what to publish and how to resolve it. Terms of Use (EULA) https://phpstack-791539-5921822.cloudwaysapps.com/terms-and-conditions
Screenshots
Verdict
The clearest difference is in-app purchases: Prognosticator AI at none against HemiSync's 1. Prognosticator AI also leads on update cadence (every 8 days vs every 5 weeks) and device support (3 vs 1). On price 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. HemiSync sells 1 in-app purchase, starting at $0.99 per month. Prognosticator AI asks for nothing beyond the download.
HemiSync ships an update every 5 weeks, Prognosticator AI every 8 days. The most recent releases landed on November 5, 2026 and November 8, 2026 respectively.
| Parameter | HemiSync | Prognosticator AI |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (11 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 11 — better | — |
| Update frequency | Every 5 weeks | Every 8 days — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 18.4 | 12.0 — better |
| Further details — not scored | ||
| Size | 61 MB | 36 MB |
| Age rating | 4+ | 4+ |
| Developer | EngineZero | Michael Kauffman |
In-app purchases
HemiSync
- Premium$0.991 Month
Prognosticator AI
No in-app purchases
Questions
Is HemiSync free?
Is Prognosticator AI free?
Do HemiSync or Prognosticator AI have ads?
Which is updated more often, HemiSync or Prognosticator AI?
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