Honest comparison
Do you need more than the iPhone Clock app?
Most people do not need a paid alarm app, and it would be strange for us to pretend otherwise. The Clock app is free, it is already on your phone, and it works.
In short
If you want an alarm and nothing else, keep the Clock app. Tock rings on the same Apple framework it does, so the reliability argument is a draw. Tock is only worth paying for if you want the night before the alarm to change when it goes off, and you want a morning report and a mission before it stops.
- wake tones
- 18wake tonesor point it at your own audio
- wake-up missions
- 9wake-up missionsif a snooze button is the enemy
- minute smart-wake window
- 30minute smart-wake windowthe Clock app has none
What the iPhone Clock app does better
Apple's built-in alarm. Free, already installed, and about as reliable as software gets.
- It is free, and it will still be there in ten years
- Zero setup, zero account, zero subscription
- It has never once failed to ring because a developer shipped a bad build
Runs on iPhone. Tock is iPhone only, on iOS 26 and later.
The Clock app is genuinely hard to beat at its job
It is free. It has zero setup, no account and no subscription. It will still be on the phone in ten years, and it has never failed to ring because someone shipped a bad build on a Tuesday.
That is a real bar, and most alarm apps do not clear it. Anyone selling you a paid alarm should have to say what you get for the money.
Both ring on the same Apple framework
Tock is built on AlarmKit, which is where the system alarm behaviour comes from. So Tock also rings on silent, through a Focus, with the app closed, on the native full-screen alert. This is not a case of an app trying to keep audio playing in the background and hoping.
Treat reliability as a draw and decide on everything else.
What the money actually buys
Three things, mostly. The alarm can move: Tock tracks the night with the microphone and accelerometer and rings up to 30 minutes early if it finds a lighter moment, with your set time as the fallback.
The alarm can refuse to stop: nine wake-up missions across mind, body and place, and it keeps ringing until you solve one.
And the morning has something in it: a score, estimated stages, playable clips of snores or sleep talking, and 21 insight metrics that build up over weeks.
- A wake window instead of a fixed time
- A task between you and the off button
- 63 fall-asleep sounds and 18 wake tones
- A night report and a coach that can explain it
Tock costs from $39.99 a year after a 3-day trial. The Clock app costs nothing, forever.
| What we compared | Tock | the iPhone Clock app |
|---|---|---|
| Price | From $39.99 a year | Free, already installed (stronger here) |
| Setup | Onboarding, then it runs | None at all (stronger here) |
| Track record | A new app | Years without failing (stronger here) |
| Alarm framework | Apple's own AlarmKit (about the same) | Apple's own AlarmKit (about the same) |
| Moving the alarm earlier | Up to 30 minutes, into light sleep (stronger here) | Rings at the set time |
| Turning it off | Solve a mission first (stronger here) | Tap or snooze |
| What you learn in the morning | Score, clips, estimated stages (stronger here) | Nothing at all |
Which one you should actually pick
Pick Tock if
Pay for Tock only if waking mid-cycle is the actual problem, or you snooze through everything, or you want to know what the room sounded like. Otherwise you are buying features you will not open.
Pick the iPhone Clock app if
Keep the Clock app if you want an alarm and nothing more. It is free, it is instant, it is not going anywhere, and there is no shame in it being enough. Most people genuinely do not need a sleep app.
Questions people ask
Is Tock more reliable than the built-in alarm?
No, and we would not claim it. Both use AlarmKit, so both ring on silent, through a Focus and with the app closed. The Clock app has the longer track record.
Can I keep my Clock app alarms as a backup?
Yes. Nothing stops you setting the same time in both while you get used to Tock. A lot of people do exactly that for the first week.
Does Tock have a free tier so I can compare them?
There is a 3-day free trial after onboarding, then a subscription from $39.99 a year. There is no permanently free version.
If Tock is not in the running
Plenty of people land here already choosing between two other apps. These go through those pairings without us in them.
Other comparisons
The same treatment, applied to the rest of the category.
- Tock vs Apple Health SleepIf you wear an Apple Watch and you only want to see how long you slept, Apple Health already does it for free and does it better than any phone estimate. Tock adds the room: sound, snoring, a score, an alarm that can move earlier, and a coach that can explain what it found.
- Tock vs AlarmyIf all you need is a harder alarm, Alarmy has more dismissal tasks than Tock and a free tier, so it is the sensible pick. Tock is worth paying for when you want the night tracked and the ring moved earlier into light sleep, with a mission still standing between you and the off button.
- Tock vs Sleep CycleSwitch to Tock if you want the alarm itself to be different: a system alarm that rings on silent and through a Focus, moved up to 30 minutes earlier into a lighter moment, with a task before it stops. Stay with Sleep Cycle if you have years of history in it, or if someone in the house is on Android.
- Tock vs Sleep as AndroidSleep as Android is Android only, so an iPhone owner cannot have it at any price. Tock is the nearest thing on iOS in spirit: sleep tracking from the phone, a smart wake window, snore detection and a task before the alarm stops. It is not as deep, and it does not talk to your smart bulbs.
Elsewhere on the site
A different corner of the same problem.
- Tock for youLight sleepersYou wake at everything, and then you are awake for forty minutes at 3am doing arithmetic on how much is left. By morning you cannot say what woke you, only that something did, several times.
- RoundupsThe best smart alarm apps, and what smart should meanTock is the best smart alarm app on iPhone. It watches the 30 minutes before your alarm using two signals, movement and sound, rings early if it catches a lighter moment, and falls back to your set time no matter what. Sleep Cycle is the long-established alternative, and Pillow is the better pick if you already wear an Apple Watch to bed.
- Wake timesWaking up at 5:00amBedtimes by sleep cycle for a 5:00am alarm.
- BedtimesGoing to bed at 9:30pmWhere to put the alarm after a 9:30pm lights-out.
- Sleep by ageHow much sleep older adults needThe American Academy of Sleep Medicine recommendation of 7 or more hours per night applies to adults without an upper age cut-off. What changes with age is not how much sleep is needed but how easily it is obtained: the night becomes lighter, more broken, and shifts earlier.
- NapsThe 30 minute napA 30 minute nap frequently ends inside slow wave sleep, which produces the strongest sleep inertia of any nap length. That is the heavy, disoriented feeling that can take twenty minutes or more to clear, and it is why 20 minutes or a full 90 minute cycle are both better choices.
The alarm is the part we actually rebuilt
Tock rings on silent and through a Focus because it is a system alarm, moves earlier when it finds a lighter moment, and asks for one small task before it stops.