Comparison

NewClock vs Atto

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

Head to head
About

NewClock

This utility app redefines your perception of time by allowing you to customize the fundamental units of hours, minutes, and seconds. Tailor your clock to your natural rhythm and gain a new perspective on daily productivity.

Highlights
  • Customizable time units
  • Change hours, minutes, seconds
  • Tailor clock to natural rhythm
  • New perspective on time
  • Unique daily productivity tool
Features
Read full description

Introducing the world's first configurable clock! NewClock allows you to add more hours to your day by changing the basic foundational units of hours, minutes, and seconds we are accustomed to. With time becoming an increasingly-rare commodity, NewClock allows you to maximize each and every day by creating a clock specifically tailored to your natural rhythm. Experience an entirely new reference to time than the current Babylonian system of 60 seconds per minute and 60 minutes per hour, NewClock instantly offers a new and unique perspective on what can be accomplished within a day. Privacy Policy - https://enginezero.tech/app-privacy-policy/ Terms of Use (EULA) - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Atto

Features
Read full description

A ticket drop is decided in milliseconds, not seconds. The queue opens on the booking server's clock, not your phone's. The two are usually tens to hundreds of milliseconds apart, and that gap decides your place in line. Atto reads the server's clock directly, and shows you how well it read it. Measuring server time An HTTP Date header only resolves to the second, so one read tells you ±500ms and no more. Atto probes at 137ms intervals so each request lands on a different phase inside the second. Once the offset narrows, it predicts when the server's second will roll over and aims at that edge. Twenty overlapping measurements fold the error down to the round trip. The error bar stays visible Instead of a label like "high accuracy" you get the measured figure: ±23ms. Sample count, rejected samples, best round trip, and how far this server runs from national standard time are all on screen. Cached responses get dropped When a CDN answers instead of the origin, the clock inside that response is frozen at the moment it was stored. Atto checks the Age and cache headers and keeps those responses out of the average. Device drift correction Your phone's oscillator runs seconds off per day. Atto measures the slope between syncs, extrapolates it to now, and re-syncs every two minutes while you wait. Dynamic Island, Picture in Picture and Lock Screen Choose Dynamic Island or Picture in Picture while you wait. Show a decreasing countdown or a corrected wall clock that advances toward your configured target, with three-digit milliseconds. Keep the timing in sight while using a booking app or webpage. Haptics and sound Taps begin at the lead time you set and end with one hard hit at zero. The whole pattern goes to Core Haptics up front rather than a timer, so zero does not move even if the screen stutters. Sound is optional and plays through the silent switch. Practice mode A recommended lead time is somebody else's number. Measure the gap between the buzz and your tap actually registering, then apply your own median. Time sources Over 300 sources across 14 regions, including Ticketmaster, AXS, StubHub, Interpark, e+, tixCraft and Damai, plus course registration sites and sneaker drops. Standard-time servers like NIST, NPL, PTB, NICT and KRISS are there too, and you can type any address yourself. Free and paid Everything that decides whether you get the ticket is free: full sync accuracy, drift correction, the on-screen countdown, haptics, every time source, practice mode. One rewarded ad puts a single countdown on the Dynamic Island. A one-time purchase removes ads and keeps it unlocked. It is not a subscription. No ad appears within three minutes of your target. Reading a clock takes one HEAD request. Atto never asks for an account and takes no part in the booking itself. English, 한국어, 日本語

Screenshots

NewClock4 screens
Atto4 screens

Verdict

The call

The clearest difference is ads: NewClock at none against Atto's shown. NewClock also leads on iOS requirement (15.2 vs 17.0). Atto's advantage is update cadence (daily vs every 11 months). 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. NewClock sells 1 in-app purchase, starting at $0.99 per month and Atto sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

NewClock ships an update every 11 months, Atto daily. The most recent releases landed on September 23, 2026 and September 24, 2026 respectively.

Scorecard3 real differences · 6 level
NewClock versus Atto: the parameters behind the verdict, then further details
ParameterNewClockAtto
PriceFreeFree
Rating3.7 (3 ratings) — better—
Number of ratings3 — better—
Update frequencyEvery 11 monthsDaily — better
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPod — betteriPhone
Requires iOS15.2 — better17.0
Further details — not scored
Size47 MB10 MB
Age rating4+4+
DeveloperEngineZeroBeomjin In

In-app purchases

1 purchases

NewClock

Subscriptions1
  • Premium$0.991 Month
1 purchases

Atto

One-time1
  • Atto Pro$2.99

Questions

Is NewClock free?
NewClock is free to download, with in-app purchases available.
Is Atto free?
Atto is free to download, with in-app purchases available.
Do NewClock or Atto have ads?
Atto shows ads; NewClock does not.
Which is updated more often, NewClock or Atto?
NewClock ships an update every 11 months, and Atto daily. Most recently, NewClock was updated on September 23, 2026 and Atto on September 24, 2026.

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