Comparison

BS vs Custom Interval Timers

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

BS

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
Read full description

Focus on your workout, not on ads. This BS Free Interval Timer satisfies your basic timer needs without any mid-workout distractions. Freely select the number of rounds, time per round, time in between rounds, or time before starting. Adjust any sound effects to your personal preference. If you are looking for a basic timer, this one is simple, effective and absolutely BS free.

About

Custom Interval Timers

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
Read full description

Create highly customizable interval timers in a beautiful Interface. Interval timers are useful for exercise, like High-intensity interval training (HIIT) or Tabata, and can also be used to manage productivity, events, and more! This app provides a fascinatingly simple and intuitive editor for setting up your own custom timers. With just a few building blocks you can create the exact experience you want. Multiple settings to match your preferences: - Count up or down - Personalize the running interface to show what matters to you - Light/dark mode - Disable ads for free!

Screenshots

BS3 screens
Custom Interval Timers4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

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.

Scorecard5 real differences · 5 level
BS versus Custom Interval Timers: the parameters behind the verdict, then further details
ParameterBSCustom Interval Timers
PriceFreeFree
Rating—5.0 (14 ratings) — better
Positive reviews91.7% of reviews100.0% of reviews — better
Number of ratings—14 — better
Update frequencyEvery 2 weeks — betterEvery 4 months
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS13.0 — better15.1
Further details — not scored
Size2 MB40 MB
Age rating4+4+
DeveloperSimon PlovytAlex Rich

Customer experience

BS

All ratings19 ratings
Positive89.5%
Neutral0.0%
Negative10.5%
Written reviews12 reviews
Positive91.7%
Neutral8.3%
Negative0.0%

Custom Interval Timers

All ratings14 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews10 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

BS

No in-app purchases

None

Custom Interval Timers

No in-app purchases

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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