# Tone Locker vs AcSync

The clearest difference is in-app purchases: AcSync at none against Tone Locker's 2. AcSync also leads on ads (none vs shown). Tone Locker's advantage is update cadence (monthly vs every 2 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Tone Locker sells 2 in-app purchases, starting at $9.99 per month. AcSync asks for nothing beyond the download.

Tone Locker ships an update monthly, AcSync every 2 months. The most recent releases landed on October 9, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Tone Locker | AcSync |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (12 ratings)](https://appshunter.io/ios/app/tone-locker/id6737691958/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 88.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 80 MB | 39 MB |
| Requires iOS | 16.4 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [Tone Locker Inc](https://appshunter.io/developer/1777414998) | [Zhongshan Fengcai Electrical Co., Ltd.](https://appshunter.io/developer/1790373325) |

## What reviewers say

### Tone Locker

[App page](https://appshunter.io/ios/app/tone-locker/id6737691958)

Catalog and track your musical instrument collection, including its history. Connect with other musicians to discuss gear, discover items for sale, and make offers. This app provides a dedicated space for your musical journey.

**Highlights:** Catalog gear collection, Track gear history, Connect with users, Discover gear for sale, Make offers on gear

**Features:** Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Tone Locker Pro Access - Monthly | $9.99 | per month |
| Tone Locker Pro Access - Annual | $99.99 | per year |


### AcSync

[App page](https://appshunter.io/ios/app/acsync/id6740517489)

**In-app purchases:** none


## Frequently asked questions

### Is Tone Locker free?

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

### Is AcSync free?

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

### Do Tone Locker or AcSync have ads?

Tone Locker shows ads; AcSync does not.

### Which is updated more often, Tone Locker or AcSync?

Tone Locker ships an update monthly, and AcSync every 2 months. Most recently, Tone Locker was updated on October 9, 2026 and AcSync on October 6, 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.*