Comparison

MultiTone Generator vs Hemi

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

Head to head
About

MultiTone Generator

Generate a wide range of audio test tones, including sine, rectangular, triangular, and sawtooth waves. Explore frequency sweeps, noise generation, and customizable settings. Upgrade for advanced features like creating multiple tone combinations and extended frequency ranges.

Highlights
  • Generate sine, rectangular, triangular, and sawtooth waves
  • Play frequency sweep test tones
  • Sweep repeat/wobble function
  • Play white and pink noise
  • Customizable frequency and sweep time ranges
  • Create up to 16 tone combinations (PRO)
Features
Read full description

This is the all-new MultiTone Generator! An amazingly flexible and powerful frequency generator! Works with Audiobus and Audiobus Remote! Upgrade to PRO and CREATE up to 16 tone combinations. Play them individually or combined. PLAY TEST TONES Sine, Rectangular, Triangular and Sawtooth. PLAY FREQUENCY SWEEP TEST TONES in both directions (minimum to maximum frequency and maximum to minimum frequency). Use the SWEEP REPEAT / WOBBLE function. Play back white and pink NOISE. Fully CUSTOMIZABLE Frequency Min-Max ranges and Sweep time range. The MultiTone Generator is AMAZINGLY INTUITIVE and SIMPLE! ADVANCED SETTINGS/FEATURES (upgrade to PRO required): => Extending the frequency range (1Hz - 21kHz) => Extending the sweep times (1s - 600s) => Create up to 16 tone combinations => Changing maximum Sweep time slider range => Frequency slider setting to linear or logarithmic => Full support for the sequence playback menu => Full support for the remote play menu => Save/Load all configurations By using this app, you agree to Apple’s Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Hemi

Explore consciousness with a curated selection of audio tracks. Access over 300 titles, including guided exercises, and create custom soundscapes. Meditate, sleep, concentrate, or relax with this comprehensive audio experience.

Highlights
  • Curated audio library
  • Over 300 titles
  • Gateway Experience exercises
  • Custom track mixer
  • Free DailySync feature
  • Meditate, sleep, concentrate, relax
Features
Read full description

Your Gateway to Exploration: All in One App Hemi-Sync® Flow offers a thoughtfully curated selection from our extensive library, making it the perfect starting point for those new to consciousness exploration or seeking a focused experience. Access over 300 titles from the Hemi-Sync® library, including six acclaimed Gateway Experience® exercises, from your mobile device for one low monthly subscription rate. Create custom Hemi-Sync® tracks using our mixer feature, and enjoy our free DailySync feature, which plays one track per day. Take charge of your own mental health. Meditate, sleep, concentrate or simply relax with ease.

Screenshots

MultiTone Generator4 screens
Hemi4 screens

Verdict

The call

MultiTone Generator and Hemi both sit at 4.6 stars, but that hides the real split: 80% of MultiTone Generator's written reviews are positive against 32% of Hemi's. MultiTone Generator also leads on monetization model (free with in-app purchases vs subscription). Hemi's advantage is update cadence (every 2 weeks vs monthly) and ratings volume (2.5K vs 355). On price, rating, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. MultiTone Generator sells 7 in-app purchases, starting at $1.49 per month and Hemi sells 2 in-app purchases, starting at $14.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

MultiTone Generator holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: Hemi has 2.5K ratings behind it against 355, so its average is the more settled of the two. Written reviews point the same way: 80% of MultiTone Generator's written reviews are positive against 32% of Hemi's.

UpkeepUpdate frequency

MultiTone Generator ships an update monthly, Hemi every 2 weeks. The most recent releases landed on October 7, 2026 and October 9, 2026 respectively.

Scorecard4 real differences · 6 level
MultiTone Generator versus Hemi: the parameters behind the verdict, then further details
ParameterMultiTone GeneratorHemi
PriceFreeFree
Rating4.6 (355 ratings) — better4.4 (2.5K ratings)
Positive reviews80.0% of reviews — better32.4% of reviews
Number of ratings3552.5K — better
Update frequencyMonthlyEvery 2 weeks — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.515.0 — better
Further details — not scored
Size9 MB94 MB
Age rating4+4+
DeveloperThomas GruberInterstate Industries, Inc.

Customer experience

MultiTone Generator

All ratings355 ratings
Positive89.6%
Neutral4.8%
Negative5.6%
Written reviews35 reviews
Positive80.0%
Neutral5.7%
Negative14.3%

Hemi

All ratings2,527 ratings
Positive82.9%
Neutral3.5%
Negative13.6%
Written reviews170 reviews
Positive32.4%
Neutral7.6%
Negative60.0%

User reviews

MultiTone Generator

From 355 App Store ratings

What we love

  • ✨ Sleek UI update
  • 🔊 Tinnitus simulation accuracy
  • 💡 Useful for frequency healing
  • 🎶 Aids musical tuning understanding
  • 💯 Great value for price

Room to improve

  • 📱 iPhone frequency title readability
  • 💰 Features moved to paid tier
  • 💸 Deceptive update practices
  • 🔊 Left/right speaker switch malfunction
  • 🔋 Battery drain when in background

Hemi

From 2.5K App Store ratings

What we love

  • 🌟 Helpful for meditation and mental health
  • 🔊 High-quality audio
  • 💻 Broad selection of content
  • 🕰️ Useful for daily routines

Room to improve

  • 🐛 Frequent crashes and bugs
  • 🤔 Confusing navigation and organization
  • 💰 Expensive subscription
  • 📼 Limited access to full-length tracks
  • 🔍 Lack of clear information about content

Bugs and requests

MultiTone Generator

Reported bugs

4 issues
  • Left and right speaker switches do not work
  • App drains battery when in background
  • Amplitude difficult to adjust on iPhones
  • High battery consumption after iOS 11 upgrade

Requested features

11 requests
  • Custom frequency names (bold)
  • Reorder frequency list
  • Display saved preset names at top
  • Sweeping duration less than 0.1s
  • Create and save multiple tracks
Show 6 more
  • More frequency rows to add
  • Create and name groupings of frequencies
  • Summation of multiple waves in a single waveform
  • Logarithmic frequency selection
  • Auto-stop tones after X seconds
  • Tones auto-stop on app minimize

Hemi

Reported bugs

4 issues
  • Audio playback issues and abrupt stops
  • Login and account syncing problems
  • Compatibility issues on certain devices
  • Glitches in the app's core functionality

Requested features

4 requests
  • Offline listening capability
  • Better progress tracking and personalization
  • Improved search and filtering options
  • More detailed track descriptions

In-app purchases

7 purchases

MultiTone Generator

Subscriptions4
  • MultiTone PRO for one month$1.491 Month
  • MultiTone PRO+ for one month$2.991 Month
  • MultiTone PRO for one year$7.991 Year
Show 1 more
  • MultiTone PRO+ for one year$14.991 Year
One-time3
  • MultiTone PRO Lifetime Access$9.99
  • MultiTone PRO+ Lifetime Access$9.99
  • MultiTone PRO+ Lifetime Access$19.99
2 purchases

Hemi

Subscriptions2
  • Monthly Subscription7 Days trial$14.991 Month
  • Annual Subscription7 Days trial$89.991 Year

Questions

Is MultiTone Generator free?
MultiTone Generator is free to download, with in-app purchases available.
Is Hemi free?
Hemi is free to download, with in-app purchases available.
Which has better reviews, MultiTone Generator or Hemi?
MultiTone Generator is rated higher. MultiTone Generator averages 4.6 out of 5 from 355 ratings, while Hemi averages 4.4 from 2.5K ratings.
Do MultiTone Generator or Hemi have ads?
Neither MultiTone Generator nor Hemi shows ads.
Which is updated more often, MultiTone Generator or Hemi?
MultiTone Generator ships an update monthly, and Hemi every 2 weeks. Most recently, MultiTone Generator was updated on October 7, 2026 and Hemi on October 9, 2026.

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