# Custom Workout Timer vs Interval Flow

The clearest difference is rating: Interval Flow at 4.7 against Custom Workout Timer's 3.7. Interval Flow also leads on update cadence (fortnightly vs every 6 months) and ratings volume (168 vs 6). Custom Workout Timer's advantage is review sentiment (88% vs 48%) and monetization model (free with in-app purchases vs subscription). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Custom Workout Timer sells 2 one-off in-app purchases and Interval Flow sells 10 in-app purchases, starting at $4.99 per 3 months. Whichever you choose, the download price is not the number that matters.

Interval Flow holds the better App Store score, 4.7 against 3.7. That said, the two scores are not equally well evidenced: Interval Flow has 168 ratings behind it against 6, so its average is the more settled of the two. Written reviews complicate that: 88% of Custom Workout Timer's written reviews are positive against 48% of Interval Flow's, so the app with the better star average is not the one people write more warmly about.

Custom Workout Timer ships an update every 6 months, Interval Flow fortnightly. The most recent releases landed on June 10, 2026 and September 5, 2026 respectively.

## The numbers

| Metric | Custom Workout Timer | Interval Flow |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (6 ratings)](https://appshunter.io/ios/app/custom-workout-timer/id895955964/reviews) | **[4.7 (168 ratings)](https://appshunter.io/ios/app/interval-flow-wod-timer/id6444124987/reviews)** |
| Number of ratings | 6 | **168** |
| Positive reviews | **87.5% of reviews** | 48.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Fortnightly** |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 28 MB | 20 MB |
| Requires iOS | **15.6** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Encodia, LLC](https://appshunter.io/developer/895955967) | [Bence Kaposzta](https://appshunter.io/developer/1650069302) |

## What reviewers say

### Custom Workout Timer

[App page](https://appshunter.io/ios/app/custom-workout-timer/id895955964)

Design custom workout routines with timed exercises. This app provides spoken prompts for each exercise and countdowns for remaining time. Enjoy your music without interruption during your training sessions.

**Highlights:** Create custom workout routines, Timed exercises, Spoken exercise prompts, Countdown timer, Music player integration

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 7-day Trial | Free | one-time |
| Full App | $1.99 | one-time |


### Interval Flow

[App page](https://appshunter.io/ios/app/interval-flow-wod-timer/id6444124987)

This app revolutionizes fitness routines with deep customization and advanced tracking for various activities like HIIT, Yoga, and CrossFit. It allows users to create, share, and follow personalized workouts with features like color-coded intervals, real-time progress tracking, and voice assistance.

**Highlights:** Color-coded intervals, Customizable circuits, Real-time progress tracking, Voice assist and search, Exercise library, Workout sharing

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 3 Month | $4.99 | per 3 months |
| 1 Month | $9.99 | per month |
| 1 Month, 3 day trial | $9.99 | per month |
| Annual | $14.99 | per year |
| 1 Year discounted | $25.95 | per year |
| 1 Year, 3 day trial | $39.99 | per year |
| 1 Year | $39.99 | per year |
| 1 Year Intro month | $39.99 | per year |
| Free Lifetime subscription | Free | one-time |
| Lifetime | $24.99 | one-time |


## Frequently asked questions

### Is Custom Workout Timer free?

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

### Is Interval Flow free?

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

### Which has better reviews, Custom Workout Timer or Interval Flow?

Interval Flow is rated higher. Custom Workout Timer averages 3.7 out of 5 from 6 ratings, while Interval Flow averages 4.7 from 168 ratings.

### Do Custom Workout Timer or Interval Flow have ads?

Neither Custom Workout Timer nor Interval Flow shows ads.

### Which is updated more often, Custom Workout Timer or Interval Flow?

Custom Workout Timer ships an update every 6 months, and Interval Flow fortnightly. Most recently, Custom Workout Timer was updated on June 10, 2026 and Interval Flow on September 5, 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.*