Comparison

Big Clock vs Studio Clock GX2021

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

Head to head
About

Big Clock

This utility app displays the current day, time, and date in a large, full-screen digital format. It offers customization options for clock digit color and includes integrated alarm, timer, and stopwatch functionalities with advanced settings like repetition and lap tracking.

Highlights
  • Full-screen digital clock display
  • Customizable digit colors
  • Multiple alarm settings
  • Countdown timer
  • Stopwatch with lap feature
  • Display day and date
Features
Read full description

Big Clock: The Ultimate High-Visibility Digital Display. Never struggle to read the time again. Big Digital Clock transforms your entire screen into a massive, crystal-clear time hub. Whether you need a reliable bedside clock for your nightstand or a giant countdown timer for the gym, our app delivers maximum visibility with a minimalist touch. WHY USERS LOVE BIG CLOCK: The Biggest Display: A true full-screen experience designed for visibility from across the room. Aesthetic Themes: Personalize your display with vibrant neon colors and high-contrast glow effects. Precision Tools: Includes a high-contrast Stopwatch with Laps and a Countdown Timer for workouts or study sessions. Smart Nightstand Alarms: Set multiple alarms with custom snooze, repetition, and loud wake-up tones. KEY FEATURES: 12/24 Hour Toggle: Switch formats instantly to suit your preference. Full Customization: Use the professional color picker to match your room’s aesthetic. Stay Punctual: A simple, distraction-free interface that stays active while you work or sleep. Stay punctual with the most readable clock on the App Store. Download Big Digital Clock today! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Studio Clock GX2021

Transform your space into a professional studio with a highly accurate LED clock inspired by 1970s designs. Perfect for live shows, streams, and podcasts, it offers precise timing and customizable visual elements.

Highlights
  • 1/1000 second accuracy
  • Leap second support
  • 1970s LED design
  • Customizable colors
  • Quarter/half/hourly pips
  • Greenwich Time Signal (GTS)
Features
Read full description

Need to host a time sensitive live show, stream or podcast? Turn your room into a professional studio with this clock that provides you the most accurate time, up to 1/1000 second. (+ leap second support) Design and animations are inspired by the LED clocks from the 70s, still used by radio & television studios, airports, and more. Want a more immersive experience? Enable the pips each quarter hour, half hour or every hour and turn up speakers to enjoy the Greenwich Time Signal (GTS) just like the one on the BBC radio stations. Customise the clock to match your channel or brand identity with exclusive colors, available in-app!

Screenshots

Big Clock4 screens
Studio Clock GX20213 screens

Verdict

The call

The clearest difference is review sentiment: Studio Clock GX2021 at 73% against Big Clock's 0%. Studio Clock GX2021 also leads on rating (4.5 vs 3.5) and ads (none vs shown). Big Clock's advantage is monetization model (ad-supported vs free with in-app purchases). On price 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. Big Clock sells 3 in-app purchases, starting at $4.99 per 7 days and Studio Clock GX2021 sells 9 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Studio Clock GX2021 holds the better App Store score, 4.5 against 3.5. That said, the two scores are not equally well evidenced: Studio Clock GX2021 has 79 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 0% of Big Clock's written reviews are positive against 73% of Studio Clock GX2021's.

UpkeepUpdate frequency

Big Clock ships an update every 3 months, Studio Clock GX2021 every 3 days. Both last shipped on October 24, 2026.

Scorecard8 real differences · 2 level
Big Clock versus Studio Clock GX2021: the parameters behind the verdict, then further details
ParameterBig ClockStudio Clock GX2021
PriceFreeFree
Rating3.5 (4 ratings)4.5 (79 ratings) — better
Positive reviews0.0% of reviews73.0% of reviews — better
Number of ratings479 — better
Update frequencyEvery 3 monthsEvery 3 days — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod, Mac — better
Requires iOS18.014.1 — better
Further details — not scored
Size66 MB3 MB
Age rating4+4+
DeveloperKevin GhoriTrevor Kamhunga

Customer experience

Big Clock

All ratings3 ratings
Positive33.3%
Neutral33.3%
Negative33.3%
Written reviews2 reviews
Positive0.0%
Neutral50.0%
Negative50.0%

Studio Clock GX2021

All ratings79 ratings
Positive87.3%
Neutral2.5%
Negative10.1%
Written reviews37 reviews
Positive73.0%
Neutral5.4%
Negative21.6%

In-app purchases

3 purchases

Big Clock

Subscriptions3
  • Big Digital Clock Weekly Plan$4.997 Days
  • Big Digital Clock Monthly Plan$9.991 Month
  • Big Digital Clock Yearly Plan$49.991 Year
9 purchases

Studio Clock GX2021

One-time9
  • Tangerine$0.99
  • Aqua$0.99
  • Plum$0.99
Show 6 more
  • Banana$0.99
  • Strawberry$0.99
  • Bubblegum$0.99
  • Flora$0.99
  • Maraschino$0.99
  • Color Bundle$2.99

Questions

Is Big Clock free?
Big Clock is free to download, with in-app purchases available.
Is Studio Clock GX2021 free?
Studio Clock GX2021 is free to download, with in-app purchases available.
Which has better reviews, Big Clock or Studio Clock GX2021?
Studio Clock GX2021 is rated higher. Big Clock averages 3.5 out of 5 from 4 ratings, while Studio Clock GX2021 averages 4.5 from 79 ratings.
Do Big Clock or Studio Clock GX2021 have ads?
Big Clock shows ads; Studio Clock GX2021 does not.
Which is updated more often, Big Clock or Studio Clock GX2021?
Big Clock ships an update every 3 months, and Studio Clock GX2021 every 3 days. Most recently, Big Clock was updated on October 24, 2026 and Studio Clock GX2021 on October 24, 2026.

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