# Twin vs Waveform

The clearest difference is price: Waveform at Free against Twin's $2.99. Waveform also leads on update cadence (daily vs fortnightly) and device support (5 vs 3). Twin's advantage is rating (5.0 vs 4.3) and review sentiment (76% vs 60%). On ratings volume, ads and in-app purchases there is nothing between them.

Waveform is free to download; Twin costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Twin holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 8 and 14 respectively. Written reviews point the same way: 76% of Twin's written reviews are positive against 60% of Waveform's.

Twin ships an update fortnightly, Waveform daily. The most recent releases landed on October 13, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | Twin | Waveform |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | **[5.0 (8 ratings)](https://appshunter.io/ios/app/twin-calc/id1619292082/reviews)** | [4.3 (14 ratings)](https://appshunter.io/ios/app/waveform/id6757118656/reviews) |
| Number of ratings | 8 | **14** |
| Positive reviews | **76.0% of reviews** | 60.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Fortnightly | **Daily** |
| Monetization | Paid | **Free** |
| Size | 1 MB | 12 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, Mac, Apple TV, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Hiroyuki Ueda](https://appshunter.io/developer/473279916) | [Evan Mourmouras](https://appshunter.io/developer/398953238) |

## What reviewers say

### Twin

[App page](https://appshunter.io/ios/app/twin-calc/id1619292082)

This app combines two calculators into one, allowing for side-by-side or stacked calculations. Easily copy and paste results between calculators or to other apps. It displays formulas for clarity and handles basic arithmetic operations.

**Highlights:** Two calculators in one, Side-by-side and stacked display, One-touch copy/paste between calculators, Copy results to iPhone memory, Formula display, Basic arithmetic operations

**Features:** Vision Pro support

**In-app purchases:** none


### Waveform

[App page](https://appshunter.io/ios/app/waveform/id6757118656)

This app provides offline playback for local audio and video files, offering robust library management and seamless control. It allows for easy file import, organization, and sharing with other users nearby, all without an internet connection.

**Highlights:** Zero-latency offline playback, Import and organize local files, Instant search and flexible sorting, Multi-select for efficient management, Built-in artwork and metadata editing, Persistent mini player and Now Playing interface, Nearby audio sharing (Waves)

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

**In-app purchases:** none


## Frequently asked questions

### Is Twin free?

Twin costs $2.99, with no in-app purchases.

### Is Waveform free?

Waveform is free to download, with no in-app purchases.

### Which has better reviews, Twin or Waveform?

Twin is rated higher. Twin averages 5.0 out of 5 from 8 ratings, while Waveform averages 4.3 from 14 ratings.

### Do Twin or Waveform have ads?

Neither Twin nor Waveform shows ads.

### Which is updated more often, Twin or Waveform?

Twin ships an update fortnightly, and Waveform daily. Most recently, Twin was updated on October 13, 2026 and Waveform on October 14, 2026.

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