# Tone Generator vs CUE! Time Signal Sync

The clearest difference is in-app purchases: Tone Generator at none against CUE! Time Signal Sync's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. CUE! Time Signal Sync sells 1 one-off in-app purchase. Tone Generator asks for nothing beyond the download.

Tone Generator ships an update every 2 weeks, CUE! Time Signal Sync every 8 days. The most recent releases landed on October 28, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Tone Generator | CUE! Time Signal Sync |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 weeks | **Every 8 days** |
| Monetization | — | Free with in-app purchases |
| Size | 5 MB | 6 MB |
| Requires iOS | 17.6 | 17.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Eiji Chiba](https://appshunter.io/developer/1818574673) | [TAKAO OGASAWARA](https://appshunter.io/developer/1895349758) |

## What reviewers say

### Tone Generator

[App page](https://appshunter.io/ios/app/tone-generator/id6746802859)

**Features:** macOS Compatibility

**In-app purchases:** none


### CUE! Time Signal Sync

[App page](https://appshunter.io/ios/app/cue-time-signal-sync/id6769318519)

This app provides highly accurate time synchronization using NTP, offering visual and auditory cues for precise second-level timing. It's ideal for professionals who need to catch exact moments, such as during events, filming, or technical work.

**Highlights:** NTP-based time correction, 57/58/59/00-second countdowns, Signal sounds and haptics, Voice announcements, Landscape display mode, Display dimmer and keep-awake mode

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $2.99 | one-time |


## Frequently asked questions

### Is Tone Generator free?

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

### Is CUE! Time Signal Sync free?

CUE! Time Signal Sync is free to download, with in-app purchases available.

### Do Tone Generator or CUE! Time Signal Sync have ads?

Both Tone Generator and CUE! Time Signal Sync show ads.

### Which is updated more often, Tone Generator or CUE! Time Signal Sync?

Tone Generator ships an update every 2 weeks, and CUE! Time Signal Sync every 8 days. Most recently, Tone Generator was updated on October 28, 2026 and CUE! Time Signal Sync 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.*