# BS vs Custom Interval Timers

The clearest difference is ads: BS at none against Custom Interval Timers's shown. BS also leads on update cadence (every 2 weeks vs every 4 months) and monetization model (free vs ad-supported). Custom Interval Timers's advantage is review sentiment (100% vs 92%). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

BS ships an update every 2 weeks, Custom Interval Timers every 4 months. The most recent releases landed on October 11, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | BS | Custom Interval Timers |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (14 ratings)](https://appshunter.io/ios/app/custom-interval-timers/id1552160706/reviews)** |
| Number of ratings | — | **14** |
| Positive reviews | 91.7% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | **Every 2 weeks** | Every 4 months |
| Monetization | **Free** | Ad-supported |
| Size | 2 MB | 40 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Simon Plovyt](https://appshunter.io/developer/1492758789) | [Alex Rich](https://appshunter.io/developer/1030627712) |

## What reviewers say

### BS

[App page](https://appshunter.io/ios/app/bs-free-interval-timer/id1492758790)

A straightforward workout timer designed for focus, offering customizable rounds, intervals, and start delays without any advertisements. Adjust sound effects to suit your training style for a distraction-free experience.

**Highlights:** Customizable number of rounds, Adjustable time per round, Configurable rest intervals, Pre-workout countdown, Adjustable sound effects, Ad-free experience

**In-app purchases:** none


### Custom Interval Timers

[App page](https://appshunter.io/ios/app/custom-interval-timers/id1552160706)

Design personalized interval timers for workouts or productivity. Its intuitive editor allows for custom flows with various settings like countdowns and personalized interfaces. Offers light/dark modes and an option to disable ads.

**Highlights:** Customizable interval flows, Intuitive timer editor, Count up or down timers, Personalized running interface, Light/dark mode, Ad-free option

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

**In-app purchases:** none


## Frequently asked questions

### Is BS free?

BS is free to download, with no in-app purchases.

### Is Custom Interval Timers free?

Custom Interval Timers is free to download, with no in-app purchases.

### Do BS or Custom Interval Timers have ads?

Custom Interval Timers shows ads; BS does not.

### Which is updated more often, BS or Custom Interval Timers?

BS ships an update every 2 weeks, and Custom Interval Timers every 4 months. Most recently, BS was updated on October 11, 2026 and Custom Interval Timers on October 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.*