Seconds Interval Timer Alternative: What to Check Before You Switch

Seconds Interval Timer has been on the App Store since 2011 and it is good. If you are searching for an alternative, it is worth being precise about what is making you look, because for 2 of the 3 common reasons the honest answer is to keep what you have.

Here is what Seconds costs and covers today, checked in August 2026, so the comparison starts from facts rather than from an impression.

That is a lot of app. It is also the reason people search for something else.

The 3 reasons people leave

It is dense: 14 years of features are in there, and most people use 4 of them: work, rest, rounds, go. If the app you open before a Tabata makes you pass a stopwatch, a countdown timer and a template picker, the friction is real even though every one of those things is useful to somebody.

It is built around a screen you look at: a full-screen coloured display readable from across a room is a good design, and it is aimed at a scene where the phone is propped up and visible. If your phone is face down on a bench, that design is spending its effort somewhere you cannot see.

Wanting the countdown where you already look: on a modern iPhone that means the Lock Screen and the Dynamic Island, so the round and the seconds left are readable without waking anything. That is a newer expectation than the app’s core design, and it is the most common single thing people describe when they say they want “something simpler”.

2 reasons that are not good reasons to switch: the price, which is a one-time $7.99 and cheaper than nearly everything that would replace it; and the device coverage, which nothing iPhone-only will match.

Replacement checks

The category is full of apps that look identical in screenshots and behave completely differently in a gym. 4 checks, in order of how much they matter.

Does it survive a locked screen? iOS suspends an app within about 5 seconds of the screen locking. A timer that counts seconds as they pass stops counting and comes back late, always in the direction of giving you rest you did not earn. This is the defect behind most interval timer complaints and it is invisible in a listing. Start a session, lock the phone for 2 minutes, and compare the round it shows against a wall clock.

Does it duck your music or stop it? A timer that pauses your track at every change is unusable with music, and a timer you cannot hear over music is unusable full stop. Ducking is the behaviour to insist on.

Does it warn, or only announce? A cue at the boundary tells you something has already happened. A count-in a few seconds before it lets you finish the rep. Seconds does the warning well; check that whatever you move to does it at all.

Can you build a session in under a minute? This is the one thing people switch for, and the only way to test it is to build your regular session in the app before you decide.

The rest of the category, by shape

“Alternative” covers 4 different kinds of thing, and only one of them is another paid iPhone app.

Web timers. Free, instant, no install, and fine at a desk. They fail in a gym for one reason: a browser tab stops being reliable the moment the screen locks, and the phone locks. Keeping the screen awake for a 40-minute session is a battery decision you will regret once.

Apple Watch Custom Workouts. Free and already installed. Work and recovery blocks with a repeat count, a tap at every change, and it records the session into your rings. For a fixed structure with no phone involved this is the strongest free option in the category and most people have never opened it. The full walk-through is here.

One-time purchase iPhone timers. The same shape as Seconds. If the price model is what you liked, this is the row to shop in, and you should expect to pay somewhere between 5 and 15 dollars once.

Subscription timers. Justifiable when the app maintains something off your device: synced history that survives a new phone, a Strava connection, an account. Not justifiable for a countdown, and worth being honest about which one you are being sold.

Notes to take before you switch

There is no import path between interval timer apps. No importer exists, because the formats have nothing in common, so switching means retyping. 10 minutes of preparation makes it painless.

For each session you actually run, write down 5 things: the work seconds, the rest seconds, the rounds, the sets, and the lead-in. If it is a circuit, write the movement order too. Most people discover at this point that they have 4 real sessions and 20 saved variations they have not touched in a year.

Then keep the old app installed for 2 weeks. The failure mode of switching timers is discovering mid-session that the new one does not do the one thing you never thought about, and reinstalling with gloves on is not a good moment to find out.

Where Rounds fits, and where it does not

Rounds is narrower than Seconds on purpose. It is an iPhone interval timer with an Apple Watch app, and that is the whole product.

What it does differently:

• The countdown, the round, the phase and the next movement live on the Lock Screen and in the Dynamic Island, with pause and skip as buttons there. The intended posture is a phone you never pick up.
• The engine holds no counter. A session is expanded into a phase timeline the moment you press start, and every question after that is arithmetic on the wall clock. 10 minutes in a pocket cannot make it wrong.
• No ads, no analytics, no tracking, no third-party SDKs.
• Movements are named and drawn, so a circuit tells you the next station rather than only the next round.

Where it loses, plainly:

• Price shape. Rounds is a subscription at $4.99 a month or $24.99 a year, with a $49.99 lifetime option and a 7-day free trial. Seconds is $7.99 once. If your timer runs entirely on your own device and you want to pay for it once, Seconds is the better deal and there is no argument to make against that.
• Devices. iPhone and Apple Watch. No iPad, no Mac, no Vision. If you run a class from an iPad, this is not a replacement.
• Speech. Rounds signals with distinct tones for work and rest and a 3-second count-in, not with spoken interval names.

Who should switch and who should not

Switch if your phone spends the session face down or out of reach and you want the answer on the Lock Screen; if the drift after a locked screen is what sent you searching; or if you want history and routines synced rather than living on one device.

Stay if you use an iPad or Mac in the session; if spoken interval names are what makes your circuits work; or if you simply prefer paying once for a tool that runs on your own device, which is a reasonable position that the rest of the category has largely abandoned.

Either way, spend the 10 minutes to run the locked-screen test on both. It is the only comparison in this category that cannot be faked in a screenshot, and it is the one the 7 buying criteria are built around.

Rounds is in open beta through TestFlight, with a 7-day free trial, which is long enough to run the test on your own sessions before deciding anything.