Comparison

MultiTone Generator vs Tone Generator EM

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

Tone Generator EM

Generate sounds across a wide frequency range to test hearing, tune instruments, or experiment with audio. Easily select frequencies with a slider, adjust volume, and play tones.

Highlights
  • Generate sounds from 1Hz to 22kHz
  • Test hearing and audio equipment
  • Tune musical instruments
  • Intuitive frequency slider
  • Adjust volume
  • Note list with corresponding frequencies
Features
Read full description

Tone Generator is a free frequency sound generator app that allows you to generate sounds in different frequencies from the lowest to the highest ranges, from 1Hz to 22kHz. Using this free frequency generator app, you can test your hearing, test audio equipment, tune different instruments, perform audio experiments, and much more. Download Tone Generator for free on your device, utilize the slider to choose the specific frequency, adjust the volume, and hit the Play button. Tone Generator main features: • Clean and neat design with a fresh and intuitive interface • Advanced yet easy-to-use frequency generator app • Change frequency slider range from the lowest to the highest • Pick up a note from the note list with corresponding frequency • Adjust audio frequency and device’s volume So, if you are a musician and are looking for a free frequency sound generator to tune musical instruments and test audio equipment, you’ve come to the right place. This free tone generator app has got you covered when it comes to testing your hearing. Stay tuned and let us know about any bugs, questions, feature requests, or any other suggestions.

Screenshots

MultiTone Generator4 screens
Tone Generator EM4 screens

Verdict

The call

MultiTone Generator and Tone Generator EM both sit at 4.6 stars, but that hides the real split: 80% of MultiTone Generator's written reviews are positive against 0% of Tone Generator EM's. MultiTone Generator also leads on ads (none vs shown) and ratings volume (355 vs 36). Tone Generator EM's advantage is iOS requirement (13.0 vs 15.5). On price, rating, update cadence 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 Tone Generator EM sells 1 one-off in-app purchase. 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: MultiTone Generator has 355 ratings behind it against 36, 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 0% of Tone Generator EM's.

UpkeepUpdate frequency

MultiTone Generator ships an update monthly, Tone Generator EM every 2 months. The most recent releases landed on September 29, 2026 and September 23, 2026 respectively.

Scorecard4 real differences · 6 level
MultiTone Generator versus Tone Generator EM: the parameters behind the verdict, then further details
ParameterMultiTone GeneratorTone Generator EM
PriceFreeFree
Rating4.6 (355 ratings) — better4.4 (36 ratings)
Positive reviews80.0% of reviews — better0.0% of reviews
Number of ratings355 — better36
Update frequencyMonthly — betterEvery 2 months
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.513.0 — better
Further details — not scored
Size9 MB6 MB
Age rating4+4+
DeveloperThomas GrubermyrApps

Customer experience

MultiTone Generator

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

Tone Generator EM

All ratings36 ratings
Positive86.1%
Neutral2.8%
Negative11.1%
Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

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

Tone Generator EM

Not enough reviews yet to summarise bugs or requests.

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
1 purchases

Tone Generator EM

One-time1
  • Premium Lifetime Upgrade$3.99

Questions

Is MultiTone Generator free?
MultiTone Generator is free to download, with in-app purchases available.
Is Tone Generator EM free?
Tone Generator EM is free to download, with in-app purchases available.
Which has better reviews, MultiTone Generator or Tone Generator EM?
MultiTone Generator is rated higher. MultiTone Generator averages 4.6 out of 5 from 355 ratings, while Tone Generator EM averages 4.4 from 36 ratings.
Do MultiTone Generator or Tone Generator EM have ads?
Tone Generator EM shows ads; MultiTone Generator does not.
Which is updated more often, MultiTone Generator or Tone Generator EM?
MultiTone Generator ships an update monthly, and Tone Generator EM every 2 months. Most recently, MultiTone Generator was updated on September 29, 2026 and Tone Generator EM on September 23, 2026.

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