BigCalc vs ZoomVolume
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BigCalc
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.
- Audible button feedback
- Sequential calculation logic
- Music playback compatibility
- Simple interface
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It is a calculator from which the sound is emitted when the button is pushed. The listened music doesn't stop if the volume slider is 0. The operator of this calculator is calculated in order putting it like a calculator of Windows . 1+2*3=9.
ZoomVolume
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.
- Accurate on-screen volume adjustment
- Hardware volume button control
- Save and load favorite volume presets
- Fine-tune minimum volume levels
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ZoomVolume enables you to change the volume accurately. If you think that minimum volume is too loud, try this. - change volume accurately on display *** this is the appeal point - of course you can change volume with hardware volume button - save/load your favorite as preset volume **Bluetooth Limitation** - With Bluetooth devices (earphones/speakers), volume can only change in steps. - Therefore, unlike wired devices, fine-tuning with the slider on the right is not possible.
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | BigCalc | ZoomVolume |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.0 (2 ratings) | 4.3 (11 ratings) — better |
| Positive reviews | — | 48.4% of reviews |
| Number of ratings | 2 | 11 — better |
| Update frequency | Every 2 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free — better |
| Devices | iPad, Mac | iPhone, iPad |
| Requires iOS | 13.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 1 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | r2r660cc | takaaki024 |
Customer experience
BigCalc
ZoomVolume
In-app purchases
BigCalc
No in-app purchases
ZoomVolume
- Remove Ads$1.99
