Real vs Big Time Clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Real
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Real-Time Atomic Clock This app shows the current time with high accuracy. It uses trusted NTP servers to stay precise. It updates in real time. It does not drift like a phone clock can. You get: • Accurate time based on atomic reference clocks • Automatic syncing with NTP servers • No setup required • Clean and easy display Useful when: • You need exact time for work or travel • You check time across devices • You need a reliable reference clock
Big Time Clock
Transform your device into a large, easy-to-read full-screen clock for any room. Enjoy a clear display with customizable typography and orientation, perfect for a nightstand or desk. This app offers a one-time purchase with all features unlocked, no ads or subscriptions.
- Full-screen digital clock
- Elegant analog face
- Always-on display
- Portrait and landscape modes
- Customizable typography
- Day and date display
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Big Time Clock turns your iPhone or iPad into a full-screen clock you can read from right across the room — on a nightstand, a desk, or a kitchen counter. Pay once and it's yours forever. No subscriptions, no in-app purchases, no ads — every feature included. Set it up once and the app remembers: your clock face, your time format, your theme. Open it and the clock has the screen to itself — settings live on their own page, a tap away. THE CLOCK • Full-screen digital clock with massive, easy-to-read numerals • Elegant analog face with a smoothly sweeping red second hand • 12-hour or 24-hour time • Seconds sized to read at a glance — tint them, or hide them completely • Day and date, on or off • Light or bold typography • Dark or light theme — deep black for the bedroom, soft paper-white for daylight ALWAYS ON, ALWAYS YOURS • The screen stays awake — it never locks while the clock is up • Every setting is remembered, so it opens exactly how you left it • Tap the clock, then the gear, to change anything — then it's just the time again • Reset to the default view whenever you want a clean slate • Portrait or landscape — just rotate your device • At home on a bedside table, a desk, a kitchen counter, in a gym or a studio — or on an old iPhone or iPad reborn as a dedicated clock BUILT RIGHT • Pay once, own it for life — the price you see is everything • No subscriptions, no in-app purchases, no upsells • No ads, ever • Megabytes, not gigabytes — no ad libraries, no analytics SDKs, nothing that isn't the app itself • No tracking, no accounts, no data collection — nothing about you ever leaves your device • Designed for iPhone and iPad Download Big Time Clock and always know the time at a glance.
Screenshots
Verdict
The clearest difference is update cadence: Real at every 10 days against Big Time Clock's every 3 weeks. Real also leads on iOS requirement (15.1 vs 18.6). On price, ads, 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
Real costs $2.99 and Big Time Clock $3.49 up front. Neither carries in-app purchases, so what you see is what you pay.
Real ships an update every 10 days, Big Time Clock every 3 weeks. The most recent releases landed on September 30, 2026 and October 12, 2026 respectively.
| Parameter | Real | Big Time Clock |
|---|---|---|
| Price | $2.99 — better | $3.49 |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 10 days — better | Every 3 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.1 — better | 18.6 |
| Further details — not scored | ||
| Size | 24 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Panupong Sakulsaeng | Matthew Avery |
In-app purchases
Real
No in-app purchases
Big Time Clock
No in-app purchases









