# Interval Timer vs Carbon VPN

The clearest difference is price: Interval Timer at Free against Carbon VPN's $0.99. Interval Timer also leads on review sentiment (86% vs 43%) and rating (4.6 vs 3.1). Carbon VPN's advantage is iOS requirement (15.0 vs 26.0). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

Interval Timer is free to download; Carbon VPN costs $0.99 up front. Interval Timer sells 3 in-app purchases, starting at $4.99 per month and Carbon VPN sells 2 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Interval Timer holds the better App Store score, 4.6 against 3.1. Both are backed by a comparable volume of ratings — 25 and 23 respectively. Written reviews point the same way: 86% of Interval Timer's written reviews are positive against 43% of Carbon VPN's.

Interval Timer ships an update every 3 weeks, Carbon VPN every 2 weeks. The most recent releases landed on October 9, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Interval Timer | Carbon VPN |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | **[4.6 (25 ratings)](https://appshunter.io/ios/app/interval-timer-timewave/id1524345488/reviews)** | [3.1 (23 ratings)](https://appshunter.io/ios/app/carbon-vpn/id1626313143/reviews) |
| Number of ratings | **25** | 23 |
| Positive reviews | **85.7% of reviews** | 43.2% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Monetization | Freemium | Free with in-app purchases |
| Size | 49 MB | 57 MB |
| Requires iOS | 26.0 | **15.0** |
| Devices | **iPhone, iPad, Mac, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Muhammed Sahil Arayakandy](https://appshunter.io/developer/1524345491) | [FLARFLY LLC](https://appshunter.io/developer/1626313145) |

## What reviewers say

### Interval Timer

[App page](https://appshunter.io/ios/app/interval-timer-timewave/id1524345488)

This versatile timer app allows users to create custom sequences for various activities, from breathwork and workouts to focus sessions and cooking. It offers AI-powered voice guidance, iCloud synchronization across Apple devices, and a minimalist black-and-white interface.

**Highlights:** Customizable timer chains, Breathwork flow builder, Intermittent fasting timers, Workout routine creator, Focus and Pomodoro timers, AI voice guidance, iCloud sync across devices

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Premium | $4.99 | per month |
| Yearly Premium | $24.99 | per year |
| Lifetime Premium | $49.99 | one-time |


### Carbon VPN

[App page](https://appshunter.io/ios/app/carbon-vpn/id1626313143)

Experience instant, private internet access with a single tap. This app routes your connection through high-speed global servers, ensuring your data is safe, your identity hidden, and your bandwidth unlimited. Enjoy a distraction-free, secure browsing experience without registration or ads.

**Highlights:** One-tap connect, Unlimited bandwidth, Zero logs policy, No ads, Global server network, OpenVPN protocol support

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Carbon VPN VIP Access | $1.99 | per month |
| Carbon VPN VIP Access | $19.99 | per year |


## Frequently asked questions

### Is Interval Timer free?

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

### Is Carbon VPN free?

Carbon VPN costs $0.99, and also offers in-app purchases.

### Which has better reviews, Interval Timer or Carbon VPN?

Interval Timer is rated higher. Interval Timer averages 4.6 out of 5 from 25 ratings, while Carbon VPN averages 3.1 from 23 ratings.

### Do Interval Timer or Carbon VPN have ads?

Neither Interval Timer nor Carbon VPN shows ads.

### Which is updated more often, Interval Timer or Carbon VPN?

Interval Timer ships an update every 3 weeks, and Carbon VPN every 2 weeks. Most recently, Interval Timer was updated on October 9, 2026 and Carbon VPN on October 15, 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.*