Comparison

Countdown Timer Nano vs Block & Flow

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

Head to head
About

Countdown Timer Nano

A minimalist countdown timer with both numerical and graphical time displays. This version offers extended time limits, additional visual styles, and features like autorestart for interval training.

Highlights
  • Numerical and graphical time display
  • Up to 999 minutes time limit
  • Two extra display styles (FAT, B&W)
  • Circle animation of total time
  • Count down and count up functions
  • Autorestart for interval training
  • Optional sounds
Features
Read full description

Countdown Nano Timer is a beautifully minimal countdown timer: one thin progress ring, one big number, nothing else on the screen. Set the time with a tap or a drag on the circle, start, and stay focused. Perfect for presentations, workouts, cooking, classrooms and meetings. FREE FEATURES: • Clean, distraction-free black screen with a progress ring and large, ultra-thin digits • Set the time by tapping the top or bottom half of the ring, or drag to scrub • Timers up to 60 minutes • Sound when the time is up, with an optional per-second tick • Adjustable timer size • Keeps counting in the background • Translated into 10 languages UPGRADE TO PRO TO UNLOCK: • Timers up to 24 hours • Fat and Monochrome display styles • Full timer display formats (MM:SS and HH:MM) • Custom progress colors (green → yellow → red) • Sound and screen-flash alerts at the points you choose • Auto restart for interval training • Overtime tracking to see how far you ran over • Remote control from another device on the same Wi-Fi • No upgrade popups PRO is available as a one-time Lifetime purchase or a Yearly subscription. Already bought Nano Timer PLUS? Thank you! Every PRO feature stays unlocked for you at no extra cost. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.countdownkings.com/privacy-policy-mobile-apps/

About

Block & Flow

This app helps you boost productivity by breaking down tasks into focused work intervals with scheduled breaks. It visualizes your progress and helps you understand where your time goes, encouraging consistent accomplishment.

Highlights
  • 25-minute visual countdown timer
  • Scheduled breaks for energy management
  • Track daily and weekly block completion
  • Color-code blocks for activities
  • Set intentional goals
  • View time history
  • Adjustable block duration
Features
Read full description

Do more in less time with 25-minute blocks. Take it one block at a time and surprise yourself with how much you can accomplish. Inspired by tried and trusted time management techniques. Block & Flow is simple, beautiful and will get your productivity flowing. FEATURES: - A 25-minute visual countdown keeps you focussed and avoiding distractions. - Manage your energy levels with regular breaks - Measure your day, week and longer by how many blocks you finish. - Colour code a block for the activities that you do often or care particularly about. - Goals enable you to be intentional with your time. - History gives you an understanding of where your time goes. - A block’s duration can be changed to your ideal time. WHY IT WORKS: - It makes it easy to get the day started. Just do your first block. - Creates an enjoyment and satisfaction as you see all that you get done. See your blocks build up one by one. - It is clear when to stop. Stop when your block has finished, or after you have done x many blocks for the day. - Every block that you finish is a small success. As these small successes build-up, your self- belief grows. - If you keep finishing your blocks. The time will add up to a lot and you will surprise yourself. (We under-estimate what we can do in the long term). WHO IS IT FOR? People tell me that they do x many blocks a day, or over a week which is fantastic. A few people have been completing their blocks for a year and more. I imagine someone completing their blocks over a month, a year and ultimately many years. I believe they will grow as a person, stretch themselves, and be surprised with what they are able to learn, create and accomplish. This is what excites me and motivates me to do my best for someone that chooses Block & Flow. What will you accomplish, one block at a time? Happy Block & Flowing Stefan ********************* PRO SUBSCRIPTION: - A Monthly or Yearly Pro Subscription is offered. If you purchase a Pro Subscription payment will be charged to your iTunes account. - Renewals will be charged 24 hours prior to the end of your current Pro Subscription. - You can turn off auto-renewal at any time in your iTunes Store settings. POLICIES: - Privacy Policy: https://www.blockandflowapp.com/privacy%20policy/ - Terms of Service: https://www.blockandflowapp.com/terms%20of%20service/

Screenshots

Countdown Timer Nano3 screens
Block & Flow4 screens

Verdict

The call

The clearest difference is in-app purchases: Countdown Timer Nano at none against Block & Flow's 3. Countdown Timer Nano also leads on iOS requirement (15.0 vs 17.6). Block & Flow's advantage is rating (3.9 vs 3.5) and update cadence (every 3 weeks vs every 3 months). On price, review sentiment, 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. Block & Flow sells 3 in-app purchases, starting at $2.49 per month. Countdown Timer Nano asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Block & Flow holds the better App Store score, 3.9 against 3.5. That said, the two scores are not equally well evidenced: Block & Flow has 77 ratings behind it against 4, so its average is the more settled of the two. Written reviews split almost evenly too, at 71% and 72% positive.

UpkeepUpdate frequency

Countdown Timer Nano ships an update every 3 months, Block & Flow every 3 weeks. The most recent releases landed on October 24, 2026 and October 22, 2026 respectively.

Scorecard6 real differences · 4 level
Countdown Timer Nano versus Block & Flow: the parameters behind the verdict, then further details
ParameterCountdown Timer NanoBlock & Flow
PriceFreeFree
Rating3.5 (4 ratings)3.9 (77 ratings) — better
Positive reviews71.4% of reviews71.6% of reviews — better
Number of ratings477 — better
Update frequencyEvery 3 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.6
Further details — not scored
Size26 MB7 MB
Age rating4+4+
DeveloperIgor DonkovOne foot after the other Ltd

Customer experience

Countdown Timer Nano

All ratings4 ratings
Positive50.0%
Neutral25.0%
Negative25.0%
Written reviews7 reviews
Positive71.4%
Neutral0.0%
Negative28.6%

Block & Flow

All ratings76 ratings
Positive72.4%
Neutral5.3%
Negative22.4%
Written reviews95 reviews
Positive71.6%
Neutral7.4%
Negative21.1%

Bugs and requests

Countdown Timer Nano

Not enough reviews yet to summarise bugs or requests.

Block & Flow

Reported bugs

11 issues
  • App crashes on launch (reported February 2024)
  • Blocks reset when switching to other apps
  • Blocks disappear from history after completion
  • Timer stops inexplicably during use
  • Subscription status not recognized after reinstall
Show 6 more
  • Incompatibility with older iPhone models
  • Blocks fail to time correctly and end immediately
  • History only displays one week of data
  • Cannot navigate forward in history view
  • Data loss on app restart
  • Notification system loses completed blocks if not immediately rated

Requested features

20 requests
  • Customizable work block duration (not just 25 minutes)
  • Ability to edit task descriptions from previous days
  • Change block categories retroactively
  • Do-not-disturb mode activation with blocks
  • Watch app or Apple Watch complication
Show 15 more
  • Vibration notification option for silent mode
  • Mac version of the app
  • Lock screen timer display
  • White noise or ticking sound for focus
  • Auto-advance to next block feature
  • More detailed history with hours instead of block count
  • Independent goal tracking within same category
  • Export functionality for data
  • Multiple independent goals under same category
  • Ability to view notes for each block in history
  • Forward navigation in history view
  • Ongoing notifications until manually dismissed
  • Automatic block registration without app interaction
  • More color choices for categories
  • Reduced subscription pricing

In-app purchases

None

Countdown Timer Nano

No in-app purchases

3 purchases

Block & Flow

Subscriptions3
  • Monthly$2.491 Month
  • Yearly$19.991 Year
  • Yearly with Trial7 Days trial$19.991 Year

Questions

Is Countdown Timer Nano free?
Countdown Timer Nano is free to download, with no in-app purchases.
Is Block & Flow free?
Block & Flow is free to download, with in-app purchases available.
Which has better reviews, Countdown Timer Nano or Block & Flow?
Block & Flow is rated higher. Countdown Timer Nano averages 3.5 out of 5 from 4 ratings, while Block & Flow averages 3.9 from 77 ratings.
Do Countdown Timer Nano or Block & Flow have ads?
Neither Countdown Timer Nano nor Block & Flow shows ads.
Which is updated more often, Countdown Timer Nano or Block & Flow?
Countdown Timer Nano ships an update every 3 months, and Block & Flow every 3 weeks. Most recently, Countdown Timer Nano was updated on October 24, 2026 and Block & Flow on October 22, 2026.

Other comparisons