# IntervalTimer+ vs MillisecondTimer

The clearest difference is price: MillisecondTimer at Free against IntervalTimer+'s $2.99. MillisecondTimer also leads on update cadence (every 3 weeks vs every 6 months). IntervalTimer+'s advantage is in-app purchases (none vs 3) and ads (none vs shown). On device support and iOS requirement there is nothing between them.

MillisecondTimer is free to download; IntervalTimer+ costs $2.99 up front. MillisecondTimer sells 3 in-app purchases, starting at $1.00 per month. IntervalTimer+ asks for nothing beyond the download.

IntervalTimer+ ships an update every 6 months, MillisecondTimer every 3 weeks. The most recent releases landed on October 8, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | IntervalTimer+ | MillisecondTimer |
| --- | --- | --- |
| Price | $2.99 | **Free** |
| Rating | — | **[5.0 (9 ratings)](https://appshunter.io/ios/app/millisecondtimer/id6462732415/reviews)** |
| Number of ratings | — | **9** |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 1 MB | 30 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [whitez](https://appshunter.io/developer/548591356) | [WONJI HA](https://appshunter.io/developer/1703308182) |

## What reviewers say

### IntervalTimer+

[App page](https://appshunter.io/ios/app/intervaltimer-plus/id548591353)

This utility app provides a simple interval timer with customizable sound and vibration alerts. Users can set specific durations and receive notifications to manage their timed activities effectively. It supports custom sound additions for a personalized experience.

**Highlights:** Customizable interval timer, Vibration notifications, Sound alerts, Customizable sound options, Light notifications

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

**In-app purchases:** none


### MillisecondTimer

[App page](https://appshunter.io/ios/app/millisecondtimer/id6462732415)

This app provides highly accurate timing tools, including a countdown timer, stopwatch, and clock, all with millisecond precision. It's designed for precise measurements in workouts, games, and everyday situations, offering background operation and seamless switching between apps.

**Highlights:** Millisecond precision timing, Countdown timer with custom intervals, Stopwatch for accurate interval recording, Real-time millisecond clock display, Background operation and notifications, Recent timers for quick reuse, Customizable 12/24 hour clock format

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MillisecondTimer Pro Month Plan | $1.00 | per month |
| MillisecondTimer Pro Annual Plan | $5.99 | per year |
| MillisecondTimer Pro Lifetime | $34.99 | one-time |


## Frequently asked questions

### Is IntervalTimer+ free?

IntervalTimer+ costs $2.99, with no in-app purchases.

### Is MillisecondTimer free?

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

### Do IntervalTimer+ or MillisecondTimer have ads?

MillisecondTimer shows ads; IntervalTimer+ does not.

### Which is updated more often, IntervalTimer+ or MillisecondTimer?

IntervalTimer+ ships an update every 6 months, and MillisecondTimer every 3 weeks. Most recently, IntervalTimer+ was updated on October 8, 2026 and MillisecondTimer on October 30, 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.*