Comparison

OmniCalc vs Waveform Visualizer

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

Head to head
About

OmniCalc

This app offers a versatile calculator with a scrollable history for easy editing and instant results. It features date math, custom conversion calculators, and a personal math library for saving formulas and operations. Supports standard, scientific, and statistical calculations.

Highlights
  • Scrollable operation history
  • Instant result updates
  • Date math functions
  • Custom conversion calculators
  • Save formulas and history
  • Standard, Scientific, Statistical modes
Features
Read full description

Easy to use calculator that lets you scroll through your operations and make changes with instant results. Includes date math functions to easily add or subtract dates from each other. You can also add or subtract days from any date. • Rotate the iPhone/iPad to instantly swap between different calculators. • Annotate and save a series of operations to create your own conversion calculators. • Save formulas or operation history in your own math library. • Date Math is automatically detected in normal operations. Add or subtract dates from each other, add or subtract a number from any date. Includes: • Standard Calculator Functions • Scientific Calculator Functions • Statistical Calculator Functions • Date Math Calculator Functions

About

Waveform Visualizer

Transform your audio into captivating waveform videos for social media. Easily convert voice recordings into visual content with customizable backgrounds, colors, and wave styles. Transcribe your speech to text and make your voice stand out.

Highlights
  • Audio to waveform video conversion
  • Voice transcribing to text
  • Customizable wave styles
  • Background media library
  • Color customization
  • Avatar addition (Pro)
Features
Read full description

Audiom helps you transform audio into eye-catching visuals perfect for Instagram, TikTok, and other social platforms. Whether you’re promoting a podcast episode, sharing a voice message, or creating engaging content, Audiom makes your audio stand out. Record your voice, and Audiom instantly converts it into a dynamic waveform video. Add captions, customize colors, and choose a style that matches your vibe. In seconds, you’ll have a share-ready video that brings your voice to life. Perfect for podcasters, storytellers, creators, and anyone who wants their voice to be seen and heard. Features: • Audio to Waveform Video Turn voice recordings into stunning animated waveforms. • Automatic Voice Transcription Convert spoken words into captions to make your message clearer and more engaging. • Beautiful Customization Choose from vibrant colors, gradients, and backgrounds. • Custom Wave Styles Adjust waveform style, gain, and animation to match your sound. • Made for Social Media Create content ready for Instagram, TikTok, and more. Audiom Pro is an auto-renewing subscription. Payment for Plus subscription will be charged to your Apple ID account at the confirmation of purchase. The subscription will renew automatically unless it is canceled at least 24 hours before the end of the current period. https://appersian.app/audiom/termsofuse.html

Screenshots

OmniCalc3 screens
Waveform Visualizer4 screens

Verdict

The call

The clearest difference is rating: OmniCalc at 4.7 against Waveform Visualizer's 4.2. OmniCalc also leads on in-app purchases (none vs 4) and review sentiment (72% vs 39%). Waveform Visualizer's advantage is update cadence (every 4 weeks vs every 2 months). On price, ratings volume, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Waveform Visualizer sells 4 in-app purchases, starting at $2.99 per month. OmniCalc asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

OmniCalc holds the better App Store score, 4.7 against 4.2. Both are backed by a comparable volume of ratings — 72 and 118 respectively. Written reviews point the same way: 72% of OmniCalc's written reviews are positive against 39% of Waveform Visualizer's.

UpkeepUpdate frequency

OmniCalc ships an update every 2 months, Waveform Visualizer every 4 weeks. The most recent releases landed on October 8, 2026 and October 11, 2026 respectively.

Scorecard6 real differences · 4 level
OmniCalc versus Waveform Visualizer: the parameters behind the verdict, then further details
ParameterOmniCalcWaveform Visualizer
PriceFreeFree
Rating4.7 (72 ratings) — better4.2 (118 ratings)
Positive reviews71.9% of reviews — better38.7% of reviews
Number of ratings72118 — better
Update frequencyEvery 2 monthsEvery 4 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better26
Further details — not scored
Size2 MB31 MB
Age rating4+4+
DeveloperJellyfilled StudiosSamira Sadeghi

Customer experience

OmniCalc

All ratings72 ratings
Positive91.7%
Neutral5.6%
Negative2.8%
Written reviews32 reviews
Positive71.9%
Neutral9.4%
Negative18.8%

Waveform Visualizer

All ratings118 ratings
Positive78.8%
Neutral4.2%
Negative16.9%
Written reviews31 reviews
Positive38.7%
Neutral9.7%
Negative51.6%

Bugs and requests

OmniCalc

Not enough reviews yet to summarise bugs or requests.

Waveform Visualizer

Reported bugs

8 issues
  • Subtitles freak out
  • App doesn't work after screen locks
  • Buttons and recording disappear after unlocking
  • App crashes constantly
  • Doesn't work on iPad Pro or iPhone 13 Pro Max
Show 3 more
  • Paid for lifetime access, sound recording doesn't work
  • App freezes, can't press buttons after hitting record
  • Doesn't give access to microphone

Requested features

10 requests
  • Ability to import audio files
  • More waveform styles
  • Add old LED spectrum EQ look
  • Add night rider glowing red waves
  • Ability to import photos
Show 5 more
  • Ability to import video
  • Improve subtitle reliability
  • Prevent automatic screen locking during recording
  • Add ability to upload audio from another source
  • Add square wave option without premium

In-app purchases

None

OmniCalc

No in-app purchases

4 purchases

Waveform Visualizer

Subscriptions3
  • Audiom Pro Monthly$2.991 Month
  • Audiom Pro Weekly$4.997 Days
  • Audiom Pro Yearly$14.991 Year
One-time1
  • Audiom Pro$29.99

Questions

Is OmniCalc free?
OmniCalc is free to download, with no in-app purchases.
Is Waveform Visualizer free?
Waveform Visualizer is free to download, with in-app purchases available.
Which has better reviews, OmniCalc or Waveform Visualizer?
OmniCalc is rated higher. OmniCalc averages 4.7 out of 5 from 72 ratings, while Waveform Visualizer averages 4.2 from 118 ratings.
Do OmniCalc or Waveform Visualizer have ads?
Neither OmniCalc nor Waveform Visualizer shows ads.
Which is updated more often, OmniCalc or Waveform Visualizer?
OmniCalc ships an update every 2 months, and Waveform Visualizer every 4 weeks. Most recently, OmniCalc was updated on October 8, 2026 and Waveform Visualizer on October 11, 2026.

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