NN Clock vs Big Clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NN Clock
This application offers a straightforward and powerful alarm clock experience with an elegant analog interface. It simplifies alarm setting and management, allowing for custom wake-up sounds and background changes. The app also integrates with HealthKit for sleep tracking.
- Set alarms by moving alarm hand
- Swipe to dismiss alarms
- Start timer by turning ring
- Customizable background images
- HealthKit sleep registration
- 8 built-in alarm sounds
- Music library integration
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The No Nonsense Alarm Clock was made to be simple and easy to use, yet powerful and flexible. What is does, it does good: "Perfect minimal analog clock I'm a huge fan of analog clocks with good alarms for iPhone and this one is in my top 5. I currently have 23 ( just counted) and many aren't clean, simple and just good, this is a keeper. "Awesomely Simplistic This app has an elegant watch interface and simply and dependably does what it's supposed to. More wake-up tones would be welcome, but adding to this app might defeat its appeal. Highly recommended! ... The longer I have had this app, the better it gets. Very intuitive and increasingly feature-rich I have discovered." "KISS Approach - it just works Well, this application is such a find. It keeps everything at the most basic level and in doing so it is pure genius. Couldn't ask for anything more even though it is so "less" than what the other apps try to promise" "Simple, works, looks great. I'm embarrassed to say how much I've spent buying alarm clock apps. This is by far the best one, and it is free. It just works. Looks great, easy to set the alarm or multiple alarms. Enormous snooze button. Very well done!" Key features: - Set an alarm by simply moving the alarm hand - Choose between 3 alarms and alarm-off by swiping the alarm window - Start a timer/countdown by turning the ring - Change background images (new) - Register sleep in HealthKit When the alarm goes off you don't have to choose between two buttons - there is only one: Snooze. The alarm sound can be chosen from 8 different build-in alarms, which all work even when the app is in the background or the device is suspended. When the app is in the foreground it can play any song you select from your Music library - slowly fading in if you choose. The brightness of the screen is easily adjusted by sliding two fingers up or down the main view. The Alarm Clock looks great on your night stand.
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.
- Full-screen digital clock display
- Customizable digit colors
- Multiple alarm settings
- Countdown timer
- Stopwatch with lap feature
- Display day and date
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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/
Screenshots
Verdict
The clearest difference is review sentiment: NN Clock at 77% against Big Clock's 0%. NN Clock also leads on in-app purchases (none vs 3) and ads (none vs shown). Big Clock's advantage is update cadence (every 3 months vs every 6 months). On price 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
Both are free to download. Big Clock sells 3 in-app purchases, starting at $4.99 per 7 days. NN Clock asks for nothing beyond the download.
NN Clock holds the better App Store score, 3.7 against 3.3. That said, the two scores are not equally well evidenced: NN Clock has 36 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 77% of NN Clock's written reviews are positive against 0% of Big Clock's.
NN Clock ships an update every 6 months, Big Clock every 3 months. The most recent releases landed on July 5, 2026 and September 16, 2026 respectively.
| Parameter | NN Clock | Big Clock |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (36 ratings) — better | 3.3 (3 ratings) |
| Positive reviews | 76.7% of reviews — better | 0.0% of reviews |
| Number of ratings | 36 — better | 3 |
| Update frequency | Every 6 months | Every 3 months — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Ad-supported |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 6.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 7 MB | 66 MB |
| Age rating | 4+ | 4+ |
| Developer | AppEesy | Kevin Ghori |
Customer experience
NN Clock
Big Clock
In-app purchases
NN Clock
No in-app purchases
Big Clock
- Big Digital Clock Weekly Plan$4.997 Days
- Big Digital Clock Monthly Plan$9.991 Month
- Big Digital Clock Yearly Plan$49.991 Year
Questions
Is NN Clock free?
Is Big Clock free?
Which has better reviews, NN Clock or Big Clock?
Do NN Clock or Big Clock have ads?
Which is updated more often, NN Clock or Big Clock?
Other comparisons
