Comparison

Flip Clock vs Nixie Tube Timer

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

Head to head
About

Flip Clock

Transform your device into a large, easy-to-read bedside flip clock. It features auto-dimming for dark rooms and burn-in protection, ensuring a comfortable night's sleep. Preview all themes for free before purchasing the Pro version to remove ads and unlock all features.

Highlights
  • Full-screen flip digits
  • Auto-dimming for dark rooms
  • Burn-in protection
  • 12/24-hour format
  • Stays on all night
  • Theme previews
Features
Read full description

Turn any phone or tablet into a beautiful bedside flip clock. Big, easy-to-read digits that dim automatically in the dark, so the clock never lights up your bedroom. Prop it on the nightstand or desk and glance the time from across the room. MADE FOR THE NIGHTSTAND • Full-screen flip digits — readable from bed • Auto-dimming for dark rooms, easy on the eyes • Burn-in protection so a static clock won't mark your screen • 12 / 24-hour, follows your system setting • Stays on all night — a proper bedside clock TRY BEFORE YOU BUY Preview every theme for free — see exactly what you're getting before you pay a cent. HONEST PRICING One-time Pro ($9.99) removes ads and unlocks all themes. No subscription. Ever. The clock itself is free. Great as a bedside clock, night clock, desk clock, or dock display.

About

Nixie Tube Timer

This app provides a visually appealing countdown timer with photorealistic nixie tubes. It allows users to extend timers mid-countdown and customize sound and color themes. It operates fully offline with no data tracking.

Highlights
  • Photorealistic nixie tube display
  • Extend timers mid-countdown
  • Eight customizable color themes
  • Six synthesized tick sounds and four alarms
  • Import custom alarm audio
  • User-defined timer increment buttons
  • Fully offline operation
  • Screen stays awake during countdown
Features
Read full description

Down to 30 seconds and need longer? Tap +1m and the clock reads 1:30, still running. Photorealistic nixie tubes, eight color themes, fully offline, nothing tracked. A TIMER YOU ACTUALLY WANT TO LOOK AT This is a countdown built around photorealistic nixie-tube digits. Dial in hours, minutes and seconds, hit Start, and watch the tubes glow down one digit at a time — a focus sprint, a kid's timeout, a pot on the stove. The screen stays awake while it runs. STRETCH A TIMER THAT'S ALREADY RUNNING This is the part other timers don't do. You set one minute. It counts down to thirty seconds and you realize you need longer. Tap +1m and the clock reads 1:30 and keeps going — still running, never stopped, never reset, nothing to start over. EIGHT COLOR SCHEMES Neon Green, Cyber Blue, Amber Glow, Crimson Red, Deep Purple, Hot Pink, Sunny Yellow and Rainbow. Switch instantly, no restart. A Full Glow style spreads the aura across the whole screen if you want more of it. SOUND ON YOUR TERMS Six tick sounds — Classic, Soft, Digital, Woodblock, Mechanical, Pendulum — synthesized on the fly and locked in step with the digits. Four alarms: Radar, Beacon, Chime, Pulse. Import your own audio file as a custom alarm, or set either to None for silence. Ticks and alarm have their own volume sliders. THE BUTTONS ARE YOURS The amounts you add are the ones you choose — +30s, +1m, +5m, +25m, whatever your day actually uses. Nothing is preset for you; press and hold to remove one. They sit right under the countdown while it runs, one tap from the tubes. Durations you run often come back as one-tap shortcuts too. BUILT TO BE QUICK - Timers from a few seconds up to 99:59:59 - Timed against the clock, so it stays accurate instead of drifting - Pause, resume, restart, cancel — or stretch the countdown without pausing it - Haptic feedback on start, on tap, and at zero - A local notification when the timer ends, even if you have left the app PRIVACY, PROPERLY No accounts, no ads, no analytics, no tracking, no data collection of any kind. The app never sends anything anywhere. Everything you set stays on your device. Free. iPhone, iOS 17 and later.

Screenshots

Flip Clock4 screens
Nixie Tube Timer4 screens

Verdict

The call

The clearest difference is in-app purchases: Nixie Tube Timer at none against Flip Clock's 1. Nixie Tube Timer also leads on ads (none vs shown) and update cadence (every 3 days vs weekly). Flip Clock's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 17.0). On price, rating and ratings volume 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. Flip Clock sells 1 one-off in-app purchase. Nixie Tube Timer asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Flip Clock against 5.0 for Nixie Tube Timer. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

Flip Clock ships an update weekly, Nixie Tube Timer every 3 days. The most recent releases landed on November 5, 2026 and November 6, 2026 respectively.

Scorecard6 real differences · 3 level
Flip Clock versus Nixie Tube Timer: the parameters behind the verdict, then further details
ParameterFlip ClockNixie Tube Timer
PriceFreeFree
Rating5.0 (1 ratings)5.0 (1 ratings)
Number of ratings11
Update frequencyWeeklyEvery 3 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better17.0
Further details — not scored
Size34 MB85 MB
Age rating4+4+
DeveloperGun woo KimGood Gary Apps LLC

In-app purchases

1 purchases

Flip Clock

One-time1
  • Pro (Ads-free + All Themes)$9.99
None

Nixie Tube Timer

No in-app purchases

Questions

Is Flip Clock free?
Flip Clock is free to download, with in-app purchases available.
Is Nixie Tube Timer free?
Nixie Tube Timer is free to download, with no in-app purchases.
Which has better reviews, Flip Clock or Nixie Tube Timer?
Flip Clock and Nixie Tube Timer are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do Flip Clock or Nixie Tube Timer have ads?
Flip Clock shows ads; Nixie Tube Timer does not.
Which is updated more often, Flip Clock or Nixie Tube Timer?
Flip Clock ships an update weekly, and Nixie Tube Timer every 3 days. Most recently, Flip Clock was updated on November 5, 2026 and Nixie Tube Timer on November 6, 2026.

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