Presentation Clock vs Big Red Clock
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Presentation Clock
This app provides a highly visible, customizable timer for public speaking and presentations. It features large, color-changing numbers to indicate time thresholds and can optionally provide audible or vibration alerts. The timer continues counting up past zero to show how much time has been exceeded.
- Customizable color thresholds
- Large, easy-to-read display
- Count up after zero
- Audible and vibration alerts
- Create and save multiple timers
- Simple touch controls
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This app does one thing but it does it extremely well. If you give presentations, training, tutorials, or speak publicly, this app is for you. Beautifully animated, with large, easy to read numbers that change colors at thresholds you determine. When the timer hits 0:00, the colors invert (black on red) and continue counting up indicating how long you've gone over. Fully customizable options and simple touch controls * Create and save as many timers as you want * Set time limits for color warnings to change the clock to green, yellow and red * Timers can be configured to give audible and/or vibration alerts when crossing a time limit threshold—but if you want a completely silent countdown, thats ok too :)
Big Red Clock
This app provides a large, easily readable digital clock with both 12-hour and 24-hour formats. It also includes a countdown timer and a stopwatch function for various timekeeping needs.
- Large digital clock display
- 12-hour and 24-hour formats
- Countdown timer
- Stopwatch functionality
- Red color theme
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The perfect BIG NUMBER digital clock ...and red is just the beginning! Features: 12 hour or 24 hour Clock / Timer / Stopwatch Premium features (with subscription): Time Zone Assistant / Learn 24 Hour Time / Learn 12 Hour Time / Multi-Timer / Multi-Stopwatch Delightful set of colors and fonts to choose from Big Red Clock uses the standard Apple Terms of Use End User License Agreement (EULA): http://www.apple.com/legal/itunes/appstore/dev/stdeula
Screenshots
Verdict
The clearest difference is price: Big Red Clock at Free against Presentation Clock's $0.99. Big Red Clock also leads on rating (4.7 vs 4.3) and update cadence (every 2 weeks vs every 3 months). Presentation Clock's advantage is in-app purchases (none vs 2) and iOS requirement (8.0 vs 18.6). On ratings volume, ads, monetization model 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
Big Red Clock is free to download; Presentation Clock costs $0.99 up front. Big Red Clock sells 2 in-app purchases, starting at $0.99 per month. Presentation Clock asks for nothing beyond the download.
Big Red Clock holds the better App Store score, 4.7 against 4.3. Both are backed by a comparable volume of ratings — 96 and 168 respectively. Written reviews point the same way: 67% of Presentation Clock's written reviews are positive against 77% of Big Red Clock's.
Presentation Clock ships an update every 3 months, Big Red Clock every 2 weeks. The most recent releases landed on October 7, 2026 and October 10, 2026 respectively.
| Parameter | Presentation Clock | Big Red Clock |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.3 (96 ratings) | 4.7 (168 ratings) — better |
| Positive reviews | 67.0% of reviews | 77.4% of reviews — better |
| Number of ratings | 96 | 168 — better |
| Update frequency | Every 3 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac, Apple TV — better |
| Requires iOS | 8.0 — better | 18.6 |
| Further details — not scored | ||
| Size | 1 MB | 15 MB |
| Age rating | 4+ | 4+ |
| Developer | Shawn Welch | Single Sail Software, LLC |
Customer experience
Presentation Clock
Big Red Clock
Bugs and requests
Presentation Clock
Reported bugs
10 issues- App crashes on launch or during use
- Numbers/display not visible on screen (blank/black screen)
- Incompatibility with iOS 8, 9, and newer versions
- Tap targets for controls too small and hard to activate
- Tap-to-pause label inconsistently appears and disappears
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- Secondary display output misaligned on external monitors
- Timer list items reorder unexpectedly during editing
- App doesn't respond to taps or pinches
- Display cutoff on left side when using external displays
- App fails to work on iPad mini and some iPad models
Requested features
14 requests- Apple Watch companion app support
- Ability to name individual timer presets
- More than three time warning segments
- Count-up mode option (instead of countdown)
- Background timer functionality with notifications
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- Option to disable sound during color threshold changes
- Floating/picture-in-picture window for multitasking
- Synchronized timers across multiple iOS devices
- Visual progress bar or thermometer showing time used
- Larger, more accessible plus/minus buttons
- Real-time clock display alongside countdown
- Ability to set timer to end at specific clock time
- Fourth or additional time warning period
- Swipe gestures for time adjustment
Big Red Clock
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Presentation Clock
No in-app purchases
Big Red Clock
- Monthly1 Month trial$0.991 Month
- Yearly1 Month trial$5.991 Year
Questions
Is Presentation Clock free?
Is Big Red Clock free?
Which has better reviews, Presentation Clock or Big Red Clock?
Do Presentation Clock or Big Red Clock have ads?
Which is updated more often, Presentation Clock or Big Red Clock?
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