Aren't all interval timers the same app in different colors?

The counting part, yes, and that is why screenshots cannot tell them apart. A timer that counts up and changes color is a weekend of work, and everyone shipping one knows it. The differences live in the parts the store listing does not show: whether thirty minutes of intervals finishes in thirty minutes, whether the session survives a locked screen, and whether your saved workouts can ever leave the app. All of it is checkable before you commit a single training session to the thing.

How do I read app reviews without trusting the star rating?

Sort by newest and read the last three to six months. You are looking for two patterns: what broke in recent updates, and whether people who report problems get any reply. A wall of five-stars from two years ago tells you the app was good once. The recent months are the app you would install, written by people who already ran the test for you.

What permissions does a workout timer actually need?

Sound, and optionally notifications. A timer asking for Bluetooth, location or contacts is asking for a feature, not for timing, and every extra permission is one more dialog that can interrupt a session. If an app wants something unusual, it should explain why somewhere you can find before you grant it.

How can I test a timer's accuracy before trusting it with real workouts?

Two tests, seven minutes. Program ten rounds of ten seconds on, ten off; the session should finish at 3:20 against a kitchen timer, and a few seconds of slop means the intervals are quietly stretching. Then run one three-minute round with the phone locked in your pocket and check whether the bell lands on time with the screen dark. An app that passes both will hold up in training. One that fails was always going to fail you mid-set.

How to tell a solid timer from a weekend clone

A kettlebell subreddit has a running joke about the wave of timer apps washing up in every store list. “Our daily vibe coded timer post,” one lifter wrote, because a timer like that “can be coded in a single weekend” (r/kettlebell). A CrossFitter counted “an infinite number of vibe coded apps” in his sport alone (r/crossfit, 2026). A boxer said the same thing in words that cannot be printed here.

The fatigue is not because timers fail at the core job — how prepare, work and rest stack up is settled ground. The core is genuinely easy now, and a one-star review from August said the quiet part out loud: “simple apps are easy to generate with AI. Have a paid premium and free basic” (a store review, 2026). When the app costs a weekend to build, the screenshots tell you nothing, and the fair question posted on a kettlebell forum in March goes unanswered: “How is this different from say 5 other popular timers? We don’t need one more fitness timer, yours needs to be better.”

This is the answer, for everyone who is not the developer being asked. Six checks sort a solid timer from a weekend clone, and all of them run before you trust it with a round.

The core is a commodity. The edges are the app.

The visible parts are the cheap part: counting, colors, beeps — roughly what the built-in clock app can time, and no more. What a weekend does not buy is what happens at minute twelve with the screen dark, or in month three when an update arrives on your phone.

Read the review history, not the rating

Sort reviews by newest and read back a few months. Two patterns are worth more than any star count. The first is an update that broke something basic. This summer one popular timer shipped a release that left a user writing “Completely custom?? Not at all, I can’t change anything it’s useless”, and another’s update drew “Have to restart app a billion Times before it actually lets you use it” (both store reviews, August). The second is silence: one reviewer reported checking the app and the website and finding no way to contact support at all.

The long tail matters too. One timer spent years selling a “permanent” license, then layered a subscription on top of it: “There was a one time permanent fee I was charged. Now they are reneging on the initial agreement” (a store review, September). That app has been collecting one-star reviews about the decision for three years running. Reviews are the only place you learn how a developer behaves once money and time get tense.

Read what the updates say

Feature bullets are cheap. A changelog full of repairs, background playback fixes, device-specific corrections, means someone is answering real reports. A changelog that stopped a year ago means the next operating system update is probably that app’s last round, and your presets go down with it.

Count the permissions

An interval timer makes sounds. That is close to the whole job. So when a review from August reads “I cannot find any setting to disable the attempts to connect. this interrupts every workout session”, the nag came from a feature the user never asked for. Every permission is a potential mid-session prompt. The honest list for a timer is short, and anything beyond it should have to explain itself.

Test the clock and the screen before you save anything

Two tests, seven minutes, both described with the math here. The drift test: ten rounds of ten seconds on, ten off, run against the oven clock, finishing at 3:20 flat. One reviewer this summer watched his timer “adding extra time to each interval” until the whole session ran long; the test catches that in under four minutes. The pocket test: one three-minute round, screen locked, phone in the pocket, and the bell should land on time in the dark.

Run both before the app earns a saved workout, because once it holds your library, you will not want to move it, drift or no drift.

Make sure there is a door out

Your saved sessions should export as files and survive the move to whatever phone is next, names and rounds intact. No export means the old phone slowly becomes the archive of your training, and it tells you something about how the developer thinks about you, too.

While you are in the settings anyway, note one more line for the list: whether it beeps before you have created an account. The answer you want is yes.

Where Intertakt stands on its own list

Permissions: none required. The app makes sound and keeps time; there is no Bluetooth or location, nothing that can interrupt you.

The clock and the screen: timing reads a monotonic clock instead of counting ticks, so thirty minutes of intervals finishes at thirty minutes, and the session runs with the screen off, face-down or pocketed, on Do Not Disturb.

Export: plans export and import as plain files, stored on your device. That part sits in Premium, a single payment with no renewal, and the core timer is free.

Two items get an honest “not yet.” There are no months of public reviews, because the Google Play release is fresh, and an app that implies a track record it does not have has already failed the first check. The update history starts where it should: at release.

Intertakt is out on Google Play. Run this list on the app yourself. If you want one email when the iOS version lands, leave your address on the waitlist.