# Waveform Visualizer vs Conversion Calculator

The clearest difference is review sentiment: Conversion Calculator at 100% against Waveform Visualizer's 39%. Conversion Calculator also leads on rating (4.8 vs 4.2) and iOS requirement (17.0 vs 26). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Waveform Visualizer sells 4 in-app purchases, starting at $2.99 per month and Conversion Calculator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

Conversion Calculator holds the better App Store score, 4.8 against 4.2. Both are backed by a comparable volume of ratings — 118 and 157 respectively. Written reviews point the same way: 39% of Waveform Visualizer's written reviews are positive against 100% of Conversion Calculator's.

Waveform Visualizer ships an update every 4 weeks, Conversion Calculator every 5 weeks. The most recent releases landed on October 11, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Waveform Visualizer | Conversion Calculator |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.2 (118 ratings)](https://appshunter.io/ios/app/waveform-visualizer-audiom/id1587308997/reviews) | **[4.8 (157 ratings)](https://appshunter.io/ios/app/conversion-calculator-metric/id6468678523/reviews)** |
| Number of ratings | 118 | **157** |
| Positive reviews | 38.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 5 weeks |
| Monetization | Freemium | Free with in-app purchases |
| Size | 31 MB | 7 MB |
| Requires iOS | 26 | **17.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Samira Sadeghi](https://appshunter.io/developer/1808607496) | [Collins Cheruiyot](https://appshunter.io/developer/1579009978) |

## What reviewers say

### Waveform Visualizer

[App page](https://appshunter.io/ios/app/waveform-visualizer-audiom/id1587308997)

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:** macOS Compatibility, Family Sharing

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Audiom Pro Monthly | $2.99 | per month |
| Audiom Pro Weekly | $4.99 | per 7 days |
| Audiom Pro Yearly | $14.99 | per year |
| Audiom Pro | $29.99 | one-time |

**What reviewers like**

- 👍 Useful for social media
- 👍 Visually pleasing output
- 👍 Simple to use
- 👍 Handy for sharing voice
- 👍 Nice setup

**What reviewers complain about**

- 👎 Many features locked behind pro
- 👎 Basic version not worth it
- 👎 No audio import functionality
- 👎 App doesn't work
- 👎 Paid for lifetime, doesn't work

**Reported bugs**

- 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

**Requested features**

- Ability to import audio files
- More waveform styles
- Add old LED spectrum EQ look
- Add night rider glowing red waves
- Ability to import photos


### Conversion Calculator

[App page](https://appshunter.io/ios/app/conversion-calculator-metric/id6468678523)

Easily convert between metric and imperial units for weight, length, temperature, area, and time. This app offers precise, fast results with a clean interface, working offline for daily, travel, school, or work needs.

**Highlights:** Metric and imperial unit conversion, Weight, length, temperature, area, time, Offline functionality, Precise and fast results, Clean and minimal interface, Over 100 measurement types

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited access forever | $8.99 | one-time |


## Frequently asked questions

### Is Waveform Visualizer free?

Waveform Visualizer is free to download, with in-app purchases available.

### Is Conversion Calculator free?

Conversion Calculator is free to download, with in-app purchases available.

### Which has better reviews, Waveform Visualizer or Conversion Calculator?

Conversion Calculator is rated higher. Waveform Visualizer averages 4.2 out of 5 from 118 ratings, while Conversion Calculator averages 4.8 from 157 ratings.

### Do Waveform Visualizer or Conversion Calculator have ads?

Neither Waveform Visualizer nor Conversion Calculator shows ads.

### Which is updated more often, Waveform Visualizer or Conversion Calculator?

Waveform Visualizer ships an update every 4 weeks, and Conversion Calculator every 5 weeks. Most recently, Waveform Visualizer was updated on October 11, 2026 and Conversion Calculator on October 9, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*