# BigCalc vs ZoomVolume

The clearest difference is price: ZoomVolume at Free against BigCalc's $0.99. ZoomVolume also leads on rating (4.3 vs 4.0) and ratings volume (11 vs 2). BigCalc's advantage is in-app purchases (none vs 1) and iOS requirement (13.0 vs 17.6). On update cadence, ads and device support there is nothing between them.

ZoomVolume is free to download; BigCalc costs $0.99 up front. ZoomVolume sells 1 one-off in-app purchase. BigCalc asks for nothing beyond the download.

ZoomVolume holds the better App Store score, 4.3 against 4.0. That said, the two scores are not equally well evidenced: ZoomVolume has 11 ratings behind it against 2, so its average is the more settled of the two.

BigCalc ships an update every 2 months, ZoomVolume every 5 weeks. The most recent releases landed on July 6, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | BigCalc | ZoomVolume |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | [4.0 (2 ratings)](https://appshunter.io/ios/app/bigcalc/id373059494/reviews) | **[4.3 (11 ratings)](https://appshunter.io/ios/app/zoomvolume/id511015764/reviews)** |
| Number of ratings | 2 | **11** |
| Positive reviews | — | 48.4% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Paid | **Free** |
| Size | 1 MB | 5 MB |
| Requires iOS | **13.0** | 17.6 |
| Devices | iPad, Mac | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [r2r660cc](https://appshunter.io/developer/372976464) | [takaaki024](https://appshunter.io/developer/393783638) |

## What reviewers say

### BigCalc

[App page](https://appshunter.io/ios/app/bigcalc/id373059494)

This calculator app emits sound with each button press, offering a unique tactile feedback experience. It calculates operations in the order they are entered, similar to a standard Windows calculator. Enjoy your music while using it, as the sound output does not interfere with playback.

**Highlights:** Audible button feedback, Sequential calculation logic, Music playback compatibility, Simple interface

**In-app purchases:** none


### ZoomVolume

[App page](https://appshunter.io/ios/app/zoomvolume/id511015764)

Precisely adjust your device's audio levels with this utility. It offers on-screen volume control for fine-tuning and allows saving custom presets. You can also manage volume using the physical hardware buttons.

**Highlights:** Accurate on-screen volume adjustment, Hardware volume button control, Save and load favorite volume presets, Fine-tune minimum volume levels

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $1.99 | one-time |


## Frequently asked questions

### Is BigCalc free?

BigCalc costs $0.99, with no in-app purchases.

### Is ZoomVolume free?

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

### Which has better reviews, BigCalc or ZoomVolume?

ZoomVolume is rated higher. BigCalc averages 4.0 out of 5 from 2 ratings, while ZoomVolume averages 4.3 from 11 ratings.

### Do BigCalc or ZoomVolume have ads?

Neither BigCalc nor ZoomVolume shows ads.

### Which is updated more often, BigCalc or ZoomVolume?

BigCalc ships an update every 2 months, and ZoomVolume every 5 weeks. Most recently, BigCalc was updated on July 6, 2026 and ZoomVolume on October 24, 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.*