Comparison

HemiSync vs Prognosticator AI

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Binaural beat and isochronic tone generation
  • Customizable frequency ranges (Delta, Theta, Alpha, Beta, Gamma)
  • Pre-configured audio presets
  • Session timer functionality
  • Solfeggio frequency options
Features
Read full description

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/

About

Prognosticator AI

Features
Read full description

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

HemiSync4 screens
Prognosticator AI3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 6 level
HemiSync versus Prognosticator AI: the parameters behind the verdict, then further details
ParameterHemiSyncPrognosticator AI
PriceFreeFree
Rating3.6 (11 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings11 — better—
Update frequencyEvery 5 weeksEvery 8 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.412.0 — better
Further details — not scored
Size61 MB36 MB
Age rating4+4+
DeveloperEngineZeroMichael Kauffman

In-app purchases

1 purchases

HemiSync

Subscriptions1
  • Premium$0.991 Month
None

Prognosticator AI

No in-app purchases

Questions

Is HemiSync free?
HemiSync is free to download, with in-app purchases available.
Is Prognosticator AI free?
Prognosticator AI is free to download, with no in-app purchases.
Do HemiSync or Prognosticator AI have ads?
Neither HemiSync nor Prognosticator AI shows ads.
Which is updated more often, HemiSync or Prognosticator AI?
HemiSync ships an update every 5 weeks, and Prognosticator AI every 8 days. Most recently, HemiSync was updated on November 5, 2026 and Prognosticator AI on November 8, 2026.

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