Comparison

Winder vs Atomic Exact Time

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

Head to head
About

Winder

This app provides highly accurate time synchronization with atomic time servers. It features beautifully crafted, animated watch dials and optional sound cues for precise timekeeping. Designed for watch enthusiasts, it prioritizes privacy with no data collection.

Highlights
  • Atomic time synchronization (NTP)
  • Drift strip for device offset
  • Continuous-sweep second hand
  • Analog and digital display options
  • 12 handcrafted, animated dial themes
  • Optional countdown sound cues
  • No data collection or tracking
Read full description

Winder syncs to public NTP atomic time servers and shows you time you can trust, accurate to the millisecond. Open the app, read the time, set your watch. That's it. Built for collectors who care about the seconds. WHAT YOU GET Atomic time synchronization via NTP (NIST, PTB). The drift strip at the top of the screen shows your device's exact offset from atomic time. No guessing, no rounding. A continuous-sweep second hand that glides like a Spring Drive. Analog face, digital display, or both. Dauphine hands with a center ridge that catches light. Four bundled typefaces. Optional countdown sound cues (mechanical or electronic) so you can set your crown without watching the screen. 12 dial themes drawn from real watch materials: meteorite with Widmanstätten crystal lines, aventurine glass with 1,375 shimmering inclusions, sunburst rays with a rotating specular beam, tapisserie grids, black ceramic waves, and more. Every surface animates. Light sweeps slowly across crystal boundaries. Inclusions catch and release a migrating glow. Specular beams rotate over hours. These are not wallpapers. They are living dial surfaces. Three themes are free. Winder Pro unlocks the full collection with a single purchase. No subscription. PRIVACY Winder collects no data. No accounts. No analytics. No tracking. No crash reporting. Your preferences stay on your device. The only network request is the NTP time sync. That's the entire privacy policy. BUILT BY A WATCH COLLECTOR I couldn't find a precision clock on the phone that felt worthy of the watches it was meant to serve, so I built one. Every dial, every animation, every pixel is crafted with the same care you'd expect from the watches Winder serves. Made in Mexico. Part of the Watchdex ecosystem. watchdex.app

About

Atomic Exact Time

Features
Read full description

How many milliseconds is your device clock off? Atomic Exact Time compares your device with multiple internet time sources, accounts for network latency and outliers, then displays a calibrated live clock. Highlights: - Full-screen clock with milliseconds - Clear device-offset status - Offset, RTT, jitter, confidence and drift reports - Reference-time Precision Alarm - 24/25/30/50/60 fps timecode and markers - Widgets - Midnight, LED, Lab and Atomic themes - Synchronization history and CSV export - English and Turkish interface Built for broadcasters, event crews, athletes, labs, exams and anyone who needs to start on the exact second. Atomic Exact Time Pro unlocks automatic calibration, Precision Alarm, the full accuracy report, timecode, export, widget themes and every Pro appearance. Pro is offered as an auto-renewing monthly subscription with a 7-day free trial for eligible customers. The current localized price and billing period are shown by the App Store before confirmation. Payment is charged to your Apple ID account. Subscriptions renew unless canceled at least 24 hours before the end of the current period. Manage or cancel a subscription in your App Store account settings. No account. No ads. No sale of personal data. Privacy: https://atomicexactime.shortmoxagency.com.tr/en/privacy Terms: https://atomicexactime.shortmoxagency.com.tr/en/terms Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Winder4 screens
Atomic Exact Time4 screens

Verdict

The call

The clearest difference is device support: Atomic Exact Time at 3 against Winder's 1. Atomic Exact Time also leads on iOS requirement (16.4 vs 26.2). On price, ads and in-app purchases 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. Winder sells 1 one-off in-app purchase and Atomic Exact Time sells 1 in-app purchase, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

Scorecard2 real differences · 8 level
Winder versus Atomic Exact Time: the parameters behind the verdict, then further details
ParameterWinderAtomic Exact Time
PriceFreeFree
Rating5.0 (2 ratings) — better—
Positive reviews100.0% of reviews—
Number of ratings2 — better—
Update frequencyEvery 5 days—
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhoneiPhone, iPad, Mac — better
Requires iOS26.216.4 — better
Further details — not scored
Size15 MB50 MB
Age rating4+4+
DeveloperIVAN ALEJANDRO MUNGUIA CRUZSUPER KIM KIMYA VE TEKSTIL SANAYI TICARET LIMITED SIRKETI

In-app purchases

1 purchases

Winder

One-time1
  • Winder Pro$4.99
1 purchases

Atomic Exact Time

Subscriptions1
  • Atomic Exact Time Pro7 Days trial$2.991 Month

Questions

Is Winder free?
Winder is free to download, with in-app purchases available.
Is Atomic Exact Time free?
Atomic Exact Time is free to download, with in-app purchases available.
Do Winder or Atomic Exact Time have ads?
Neither Winder nor Atomic Exact Time shows ads.

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