# Double Bass Tuner Basic vs XTuner PRO

The clearest difference is update cadence: Double Bass Tuner Basic at every 2 weeks against XTuner PRO's every 2 months. XTuner PRO's advantage is iOS requirement (12.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Double Bass Tuner Basic sells 5 one-off in-app purchases and XTuner PRO sells 2 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Double Bass Tuner Basic ships an update every 2 weeks, XTuner PRO every 2 months. The most recent releases landed on September 21, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | Double Bass Tuner Basic | XTuner PRO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (190 ratings)](https://appshunter.io/ios/app/double-bass-tuner-basic/id1420917410/reviews)** | — |
| Number of ratings | **190** | — |
| Positive reviews | 31.6% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 2 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 12 MB | 63 MB |
| Requires iOS | 15.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Pedro Daniel Macalupu Cumpen](https://appshunter.io/developer/492172409) | [NETIGEN Kluzowicz sp. j.](https://appshunter.io/developer/892331873) |

## What reviewers say

### Double Bass Tuner Basic

[App page](https://appshunter.io/ios/app/double-bass-tuner-basic/id1420917410)

Instantly tune your double bass with professional accuracy. Ideal for orchestral, jazz, classical, and studio musicians, it offers precise pitch frequency display and intuitive visual feedback. Includes a tuning fork and advanced settings for enhanced functionality.

**Highlights:** Displays exact pitch frequency in Hz, Adjustable A4 temperaments, Tuning fork included, Exceptional sensitivity for low frequencies, LED tuning indicator, Tuned string lights up automatically

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove ads | $3.99 | one-time |
| A4 Calibrations 392Hz to 466Hz | $3.99 | one-time |
| Settings | $3.99 | one-time |
| Tuning Fork | $3.99 | one-time |
| Metronome | $3.99 | one-time |


### XTuner PRO

[App page](https://appshunter.io/ios/app/xtuner-pro/id6743440995)

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1 week subscription + trial | $3.99 | per 7 days |
| Forever one-time payment | $19.99 | one-time |


## Frequently asked questions

### Is Double Bass Tuner Basic free?

Double Bass Tuner Basic is free to download, with in-app purchases available.

### Is XTuner PRO free?

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

### Do Double Bass Tuner Basic or XTuner PRO have ads?

Both Double Bass Tuner Basic and XTuner PRO show ads.

### Which is updated more often, Double Bass Tuner Basic or XTuner PRO?

Double Bass Tuner Basic ships an update every 2 weeks, and XTuner PRO every 2 months. Most recently, Double Bass Tuner Basic was updated on September 21, 2026 and XTuner PRO on September 10, 2026.

---

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