Comparison

ClevverBoard vs Countdown Visual Timer

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

Head to head
About

ClevverBoard

Features
Read full description

The ClevverBoard App is used for the ClevverMail Postbox Service, a virtual office service with business addresses all over the world. You can open a digital postbox or book a legal address for your company at each of those locations with the ClevverMail App. All customers at those locations are then shown in this ClevverBoard App so that any postal service can find them.

About

Countdown Visual Timer

This app provides a calming, visual countdown timer designed to reduce anxiety for individuals with special needs, autism, or ADHD. It offers customizable sounds and an easy-to-understand interface, making time management accessible for children and those with cognitive delays.

Highlights
  • Visual countdown interface
  • Reduces anxiety and stress
  • Customizable alert sounds
  • Lockout options for buttons and settings
  • Screen stays on during countdown
  • Simple and intuitive design
Features
Read full description

Calming. Visual. Quiet. Reduces anxiety and stress. Perfect for nonverbal, special needs,, autism, ADHD. Silent or choose from many alter sounds. Kids, toddlers and caregivers will love the relaxing and easy-to-understand interface. Choose a color and over 50 sounds for notifications (or turn them off!). Stellar Accessibility support and fully localized for over 70 languages + locales. Finally! The perfect accessibility timer for young kids and people with communication or cognitive delays. Those on the Autism spectrum (ASD) and young kids can struggle with understanding time, leading to high anxiety and frustration around transitions. Being able to SEE time pass helps understanding, reducing frustration and anxiety. NO ANNOYING STUFF: — No ads, ever! — No annoying ticking sounds USEFUL FEATURES & OPTIONS: — Simple, elegant design — Easily save custom timer presets — Customize the alert sound (or turn it off!) — Lock out Stop button while timer is running (optional) — Lock out settings changes (optional) — Keep screen on during countdown (optional) — Alert sound when time is up (optional) — Notification if app is closed when timer expires (optional) — Accessibility support for Large Text, VoiceControl, Voice Over, Differentiate without Only Color, Reduce Motion, Reduce Transparency and Increase Contrast — Over 70 languages and locales! For some who have severe forms of Autism / Autism Spectrum Disorder (ASD), young children, and those with communication or cognitive impairments, Autism Timer Visual Countdown provides a superior, highly accessible experience. Hours, minutes, and seconds are abstract concepts that can be difficult to understand, leading to anger and aggression. Instead, we eliminate both visual and auditory distractions and provide a continuous, calm, visual cue. Most of the time, the app will be used by a caregiver, ABA therapist, or other professional. Changing options, and even the Stop button, can be disabled while the timer is running, and you can choose if you want an alert sound or not when the timer expires. The interface is designed to be simple and intuitive, and most of the buttons get out of the way while the timer is running. This app offers subscriptions. Privacy policy: https://nuclearcyborg.com/privacy Terms of use: https://nuclearcyborg.com/terms

Screenshots

ClevverBoard3 screens
Countdown Visual Timer4 screens

Verdict

The call

The clearest difference is in-app purchases: ClevverBoard at none against Countdown Visual Timer's 3. ClevverBoard also leads on iOS requirement (13.0 vs 17.0). Countdown Visual Timer's advantage is update cadence (every 3 weeks vs every 22 months). On price, 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. Countdown Visual Timer sells 3 in-app purchases, starting at $0.99 per 7 days. ClevverBoard asks for nothing beyond the download.

UpkeepUpdate frequency

ClevverBoard ships an update every 22 months, Countdown Visual Timer every 3 weeks. The most recent releases landed on October 2, 2026 and October 14, 2026 respectively.

Scorecard3 real differences · 6 level
ClevverBoard versus Countdown Visual Timer: the parameters behind the verdict, then further details
ParameterClevverBoardCountdown Visual Timer
PriceFreeFree
Rating—4.3 (35 ratings) — better
Number of ratings—35 — better
Update frequencyEvery 22 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS13.0 — better17.0
Further details — not scored
Size4 MB52 MB
Age rating4+4+
DeveloperClevver GmbhNuclear Cyborg Corp

In-app purchases

None

ClevverBoard

No in-app purchases

3 purchases

Countdown Visual Timer

Subscriptions3
  • Autism Timer Premium (Weekly)$0.997 Days
  • Autism Timer Premium (Monthly)$2.991 Month
  • Autism Timer Premium (Annual)3 Days trial$9.991 Year

Questions

Is ClevverBoard free?
ClevverBoard is free to download, with no in-app purchases.
Is Countdown Visual Timer free?
Countdown Visual Timer is free to download, with in-app purchases available.
Do ClevverBoard or Countdown Visual Timer have ads?
Neither ClevverBoard nor Countdown Visual Timer shows ads.
Which is updated more often, ClevverBoard or Countdown Visual Timer?
ClevverBoard ships an update every 22 months, and Countdown Visual Timer every 3 weeks. Most recently, ClevverBoard was updated on October 2, 2026 and Countdown Visual Timer on October 14, 2026.

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