# IntervalTimer Duo vs VoiceGoal

The clearest difference is iOS requirement: VoiceGoal at 15.1 against IntervalTimer Duo's 26.1. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. IntervalTimer Duo sells 1 one-off in-app purchase and VoiceGoal sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

IntervalTimer Duo ships an update every 3 weeks, VoiceGoal monthly. The most recent releases landed on October 9, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | IntervalTimer Duo | VoiceGoal |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Monthly |
| Size | 10 MB | 34 MB |
| Requires iOS | 26.1 | **15.1** |
| Devices | **iPhone, iPad, Mac** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [kosuke konuma](https://appshunter.io/developer/1767116232) | [SHOUJI MORODOME](https://appshunter.io/developer/1885058939) |

## What reviewers say

### IntervalTimer Duo

[App page](https://appshunter.io/ios/app/intervaltimer-duo/id6753626424)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Full Version | $2.99 | one-time |


### VoiceGoal

[App page](https://appshunter.io/ios/app/voicegoal/id6760569872)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Support the app $0.49 | $0.49 | one-time |
| Support the app $2.99 | $2.99 | one-time |


## Frequently asked questions

### Is IntervalTimer Duo free?

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

### Is VoiceGoal free?

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

### Do IntervalTimer Duo or VoiceGoal have ads?

Neither IntervalTimer Duo nor VoiceGoal shows ads.

### Which is updated more often, IntervalTimer Duo or VoiceGoal?

IntervalTimer Duo ships an update every 3 weeks, and VoiceGoal monthly. Most recently, IntervalTimer Duo was updated on October 9, 2026 and VoiceGoal on September 29, 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.*