Comparison

E4 Flex vs The Clock

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

Head to head
About

E4 Flex

This app enables field technicians to connect to and manage E4 Flex readers via Bluetooth Low Energy. It allows for sending commands and receiving responses, facilitating configuration and testing of the readers.

Highlights
  • Connect to E4 Flex readers via BLE
  • Send commands to readers
  • Receive responses from readers
  • Configure E4 Flex readers
  • Test E4 Flex readers
Read full description

The E4 Flex allows users to find and connect to E4 Flex readers in close proximity using the BLE interface. The user can send commands and receive responses as if they were connected using the typical serial or network connect. This app is a new tool for field technicians to configure and test the E4 Flex Reader.

About

The Clock

This app provides a reliable and user-friendly alarm clock with essential functions. Wake up gently to music, set future alarms, and customize your wake-up experience with features like volume crescendo and dismiss challenges. It also includes a world clock, timer, and stopwatch.

Highlights
  • Set and manage multiple alarms
  • Schedule future alarms
  • Volume crescendo for gentle wake-up
  • Dismiss challenges to prevent accidental deactivation
  • World clock for multiple time zones
  • Countdown timer and stopwatch with lap recording
  • Customizable themes and dark mode
Read full description

Wake up gently to your favorite music with The Clock, a reliable and user-friendly alarm clock that combines all the essential functions you need in a single app. Simple. Reliable. Precise. Features: - Easy-to-use: Set, edit, and remove multiple alarms effortlessly. Use it to wake up in the morning or for reminders and daily tasks. - Set Future Alarms: Schedule alarms for specific dates and never miss important events again. - Easy-to-Use Interface: Customize your alarm titles, snooze settings, and recurring alarms with ease. - Volume Crescendo: Gradually increase the alarm volume for a peaceful and gentle wake-up experience. - Works in All Conditions: Alarms work when your screen is off, in silent mode, or with headphones plugged in. Time zone changes are handled automatically. - Perfect for Heavy Sleepers: With loud alarm options and vibration settings, you’ll wake up on time, every time. - Music and Playlist Integration: Wake up to your favorite music or playlist, with full integration of Apple Music and Spotify. - Dismiss Challenges: To prevent accidentally disabling your alarm, set up challenges like solving math problems, scanning QR codes, or shaking your phone. - Nap Alarm: Set a quick nap alarm and wake up in time to continue your day. - Stylish Bedside Clock: Turn your device into a retro-style nightstand flip clock for a minimalist, elegant look. - World Clock: Keep track of time across multiple cities, perfect for travelers and those with family abroad. - Timer and Stopwatch: Use the countdown timer for activities like cooking, workouts, or games, and track time precisely with the advanced stopwatch, including lap recording. - Customizable Themes and Dark Mode: Personalize the app’s appearance with colorful themes and enjoy dark mode for night-time use. Download The Clock - Alarm Clock & Timer for FREE today!

Screenshots

E4 Flex3 screens
The Clock4 screens

Verdict

The call

The clearest difference is rating: E4 Flex at 5.0 against The Clock's 3.0. E4 Flex also leads on in-app purchases (none vs 3) and iOS requirement (13.1 vs 15.0). The Clock's advantage is update cadence (monthly vs every 21 months). On price, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. The Clock sells 3 in-app purchases, starting at $9.99 per 7 days. E4 Flex asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

E4 Flex holds the better App Store score, 5.0 against 3.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively.

UpkeepUpdate frequency

E4 Flex ships an update every 21 months, The Clock monthly. The most recent releases landed on September 16, 2026 and August 20, 2026 respectively.

Scorecard5 real differences · 5 level
E4 Flex versus The Clock: the parameters behind the verdict, then further details
ParameterE4 FlexThe Clock
PriceFreeFree
Rating5.0 (1 ratings) — better3.0 (1 ratings)
Positive reviews—0.0% of reviews
Number of ratings11
Update frequencyEvery 21 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPod
Requires iOS13.1 — better15.0
Further details — not scored
Size1 MB73 MB
Age rating4+4+
DeveloperPaul HamelJETKITE YAZILIM SANAYI VE TICARET A.S.

Customer experience

E4 Flex

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

The Clock

All ratings1 ratings
Positive0.0%
Neutral100.0%
Negative0.0%
Written reviews1 reviews
Positive0.0%
Neutral100.0%
Negative0.0%

In-app purchases

None

E4 Flex

No in-app purchases

3 purchases

The Clock

Subscriptions3
  • Weekly Premium Access$9.997 Days
  • Monthly Premium Access$14.991 Month
  • Yearly Premium Access$27.991 Year

Questions

Is E4 Flex free?
E4 Flex is free to download, with no in-app purchases.
Is The Clock free?
The Clock is free to download, with in-app purchases available.
Which has better reviews, E4 Flex or The Clock?
E4 Flex is rated higher. E4 Flex averages 5.0 out of 5 from 1 ratings, while The Clock averages 3.0 from 1 ratings.
Do E4 Flex or The Clock have ads?
Neither E4 Flex nor The Clock shows ads.
Which is updated more often, E4 Flex or The Clock?
E4 Flex ships an update every 21 months, and The Clock monthly. Most recently, E4 Flex was updated on September 16, 2026 and The Clock on August 20, 2026.

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