# Interval Timer vs CliniOps Connect 403

The clearest difference is in-app purchases: CliniOps Connect 403 at none against Interval Timer's 1. CliniOps Connect 403 also leads on ads (none vs shown) and update cadence (every 3 weeks vs every 2 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. Interval Timer sells 1 one-off in-app purchase. CliniOps Connect 403 asks for nothing beyond the download.

Interval Timer ships an update every 2 months, CliniOps Connect 403 every 3 weeks. The most recent releases landed on October 19, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Interval Timer | CliniOps Connect 403 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.9 (246 ratings)](https://appshunter.io/ios/app/interval-timer-hiit-workout/id1596127692/reviews)** | — |
| Number of ratings | **246** | — |
| Positive reviews | 83.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 12 MB | 86 MB |
| Requires iOS | 13.0 | **12.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Yosyp Hameliak](https://appshunter.io/developer/895008826) | [CliniOps, Inc.](https://appshunter.io/developer/925634854) |

## What reviewers say

### Interval Timer

[App page](https://appshunter.io/ios/app/interval-timer-hiit-workout/id1596127692)

This interval timer is designed for HIIT and interval training. Easily set work and rest periods, sets, and rounds to guide your workouts. It supports background operation and music playback, with an Apple Watch companion app for heart rate monitoring.

**Highlights:** Customizable work and rest periods, Set number of sets and rounds, Background operation support, Music playback compatibility, Apple Watch integration, Heart rate monitoring (Apple Watch)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |

**What reviewers like**

- 👍 Simple and intuitive interface
- 🚀 Efficient for workouts
- 💰 One-time purchase option
- ✨ Clean and uncluttered design
- 💪 Great for various training types

**What reviewers complain about**

- 🔇 Lack of customizable sounds
- 🚫 Ads can be intrusive
- ⚠️ App pauses when phone is locked
- 🗣️ Voice can be monotonous
- 🔄 Inconsistent sound notifications

**Reported bugs**

- App pauses when phone is locked
- Sound notifications are inconsistent
- App doesn't run in background
- Watch app not opening or syncing
- In-app purchase issues

**Requested features**

- Option for different/upbeat voice
- Ability to reorder saved timers
- Larger font size option
- Vibrate option
- Naming individual sets/exercises


### CliniOps Connect 403

[App page](https://appshunter.io/ios/app/cliniops-connect-403/id6757427476)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Interval Timer free?

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

### Is CliniOps Connect 403 free?

CliniOps Connect 403 is free to download, with no in-app purchases.

### Do Interval Timer or CliniOps Connect 403 have ads?

Interval Timer shows ads; CliniOps Connect 403 does not.

### Which is updated more often, Interval Timer or CliniOps Connect 403?

Interval Timer ships an update every 2 months, and CliniOps Connect 403 every 3 weeks. Most recently, Interval Timer was updated on October 19, 2026 and CliniOps Connect 403 on October 13, 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.*