clock4all vs Cant Be Late
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
clock4all
This application offers a visually appealing and accessible clock experience for all users, including those with visual impairments. It features customizable clock faces, spoken time announcements in multiple languages, and an easy-to-use interface with no complex menus.
- Visually pleasing clock faces
- Spoken time announcements
- Customizable clock designs
- Low battery level indicator
- Alarm setting functionality
- Simple, menu-free interface
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This is a clock for all: - for users aiming visual pleasing clock faces - for visual impaired users reading the time with better contrasts - for blind users hearing the speech synthesizer time message in their language - for children learning to read the clock - for children and adults having fun to select a clock’s face with random colors - for all users preferring apps easy to use and designed for all Thus it is a powerful clock in the sense of: „Technology is most powerful when it empowers everyone“ (cited from www.apple.com/accessibility). The clock4all app provides 10 different clock faces. And one extra large digital time display. Alarm time can be set. The clock indicates low battery levels with a color index. Your questions may be: 1. Must I fumble with menus, settings and modes? No. This clock app is designed for simple and robust use. You will not have to make settings in menus. There are no menus, no buttons, no sliders. Because blind, partly sighed or elderly users can hardly deal with them. 2. How does it work then, to interact with this app? There are only three interactions: - You touch the display and a voice will speak out the time in your language. - You swipe over the display and the clock face will change its design. - You shake the device and a prompt appear to set the alarm time. 3. How do the app know about the language I prefer? The app simply uses the selected language of your iPad or iPhone. 4. Can I hear the voice speaking out the time in different languages? Just go to your general iPad/iPhone settings of „Language & Region“ and change the language and its region. 5. Which languages/nations are supported by this app? USA/England, Spain, French, Italy, Germany, Netherlands, Ireland, Czech Republic, Hungary, China. Japan, Korea. 6. My language is not supported yet. Do you plan to update for it? Yes, of course, it is a clock4all. Get in contact with the author: juergen.held@hfg-gmuend.de Explain how to spell the time in your language for to update the app. 7. Does the clock4all app supports different display sizes? Yes all displays are supported. The clock’s faces will be presented at best readable sizes. 8. Can I use the clock4all in portrait and landscape orientation? Yes, the clock will rotate if you rotate your iPad or iPhone device. 9. How will the clock tell about low battery levels? Less 10% battery capacity will trigger the clocks face to have blue colored markers. Less 5% battery and the markers became red colored. If you tap then to hear the time message, the voice will append: "Battery level is less x%".
Cant Be Late
This app helps you avoid being late by calculating the optimal departure time for your events based on real-time traffic and your preferred arrival buffer. It offers customizable reminders with personality and gamified features to reward punctuality.
- Real-time traffic calculations
- Customizable departure buffers
- Personalized notification styles
- Achievement tracking and rewards
- Calendar integration
- Arrival detection
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Never be late again with the app that tells you when to leave. Can’t Be Late makes punctuality simple, smart, and a little more fun. Add your event, destination, and preferred arrival buffer, and the app helps calculate when you should leave using real-time traffic, route timing, and location-based travel estimates. No more guessing. No more rushing. No more awkward “sorry I’m late” texts. Smart Departure Reminders Can’t Be Late helps you plan around real-world travel time. Set where you need to be, choose how early you want to arrive, and get a reminder when it is time to leave. Real-Time Traffic-Based Timing Your departure reminder is based on live traffic conditions, route estimates, and your destination, helping you make better decisions before meetings, appointments, classes, social plans, and daily commutes. Notifications with Personality Choose reminder styles like Friendly, Sassy, Dramatic, or Motivational. Get punctuality alerts that feel more personal than a basic alarm. Gamified Punctuality Tracking Build better habits with on-time streaks, badges, arrival tracking, and punctuality stats that help you see your progress over time. Calendar Integration Sync your existing calendar events so you can plan when to leave without entering everything twice. Key Features • Real-time traffic-based departure reminders • Custom arrival buffers • Calendar event syncing • Location-based travel time estimates • Fun notification personalities • Streaks, badges, and punctuality stats • Arrival detection • Clean, simple design Frequently Asked Questions What is Can’t Be Late? Can’t Be Late is a punctuality and time management app that helps you know when to leave for events, meetings, appointments, classes, and social plans. How does Can’t Be Late know when I should leave? The app uses your destination, current location, real-time traffic, route timing, and your selected arrival buffer to help calculate a smarter departure time. Who is Can’t Be Late for? Can’t Be Late is built for anyone who wants help being on time, including commuters, students, professionals, parents, shift workers, and people with busy calendars. Is Can’t Be Late just a calendar app? No. Can’t Be Late works with calendar events, but its main purpose is departure planning. It helps answer the practical question: “When should I leave?” Can I choose how early I want to arrive? Yes. You can set a custom arrival buffer so the app reminds you to leave early enough for your preferred comfort level. Does Can’t Be Late use live traffic? Yes. Can’t Be Late uses real-time traffic and route estimates to help make departure reminders more accurate than a standard alarm or calendar notification. Why use Can’t Be Late instead of a regular reminder? A regular reminder tells you when an event starts. Can’t Be Late helps tell you when to leave, which is the part most people actually struggle with. Built for Better Punctuality Can’t Be Late is designed around practical time management, commute planning, travel time estimation, calendar planning, and habit building. It helps reduce the stress of leaving too late by turning departure timing into a simple, repeatable system. Download Can’t Be Late and stop being “that person.” Note: Can’t Be Late requires location permissions for accurate travel time estimates and arrival detection. EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: Cant Be Late at Free against clock4all's $0.99. Cant Be Late also leads on rating (5.0 vs 1.0) and update cadence (every 2 weeks vs every 7 months). clock4all's advantage is in-app purchases (none vs 3) and iOS requirement (12.0 vs 15.1). On ratings volume, ads 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
Cant Be Late is free to download; clock4all costs $0.99 up front. Cant Be Late sells 3 in-app purchases, starting at $1.99 per 7 days. clock4all asks for nothing beyond the download.
Cant Be Late holds the better App Store score, 5.0 against 1.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.
clock4all ships an update every 7 months, Cant Be Late every 2 weeks. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.
| Parameter | clock4all | Cant Be Late |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 1.0 (1 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 1 |
| Update frequency | Every 7 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 12.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 8 MB | 59 MB |
| Age rating | 4+ | 4+ |
| Developer | Juergen Held | Kyler Kleibrink |
In-app purchases
clock4all
No in-app purchases
Cant Be Late
- Cant be Late Weekly$1.997 Days
- Cant be Late Monthly$6.991 Month
- Yearly Subscription$34.991 Year









