# Tailsync vs Tremolo

The clearest difference is in-app purchases: Tailsync at none against Tremolo's 2. Tailsync also leads on device support (3 vs 1) and iOS requirement (14.0 vs 17.0). On price and ads there is nothing between them.

Both are free to download. Tremolo sells 2 in-app purchases, starting at $9.99 per 7 days. Tailsync asks for nothing beyond the download.

## The numbers

| Metric | Tailsync | Tremolo |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Fortnightly |
| Size | 6 MB | 1 MB |
| Requires iOS | **14.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [AKER SARL](https://appshunter.io/developer/1872187542) | [Linh Phan Nhat Khanh](https://appshunter.io/developer/1777727575) |

## What reviewers say

### Tailsync

[App page](https://appshunter.io/ios/app/tailsync/id6758315448)

**Features:** macOS Compatibility

**In-app purchases:** none


### Tremolo

[App page](https://appshunter.io/ios/app/tremolo-bpm-calculator/id6771943569)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tremolo BPM Helper Weekly | $9.99 | per 7 days |
| Tremolo BPM Helper Yearly | $49.99 | per year |


## Frequently asked questions

### Is Tailsync free?

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

### Is Tremolo free?

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

### Do Tailsync or Tremolo have ads?

Neither Tailsync nor Tremolo shows ads.

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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.*