Comparison

Countdown+++ vs 1+1 Calculator

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

Head to head
About

Countdown+++

Track important dates and events with a visually appealing and intuitive countdown app. Set unlimited custom countdowns, receive timely alarms, and share your progress with others. Personalize your experience with themes, notes, and various time formats.

Highlights
  • Unlimited event countdowns
  • Customizable alarms
  • iCloud sync across devices
  • Today widget for quick view
  • Full-screen countdown display
  • Personalization with themes and notes
  • Event sharing and social media integration
Features
Read full description

With Countdown+++ you can count down to any event and date that matters to you: -How many days until my wedding anniversary? -How long ago did I quit smoking? -How much longer before Nick’s Birthday party? -How many days do I have to find a Valentine’s present? A NEW WAY TO INTERACT WITH EVENTS AND DATES ------------ Count down to UNLIMITED events and dates with a unique and accurate way. USE IT FOR EVERYTHING ------------ Birthdays, anniversaries, Valentine ’s Day, vacation, parties, exams, Halloween, new year’s eve, thanksgiving, wedding day, Christmas, days of quitting smoking and any other date that matters to you. ALARMS ------------ Need to set a reminder for your countdown event? Countdown+++ notifies you, so you’ll never miss an important event again!!! Set up to 33 alarms per event. iCLOUD SYNC ------------ Sync all your events on all your iOS devices automatically. You don’t have to do any setup!!! RED BADGE ICON ------------ Use the red badge icon of the app to show how many days are left for the event you want. The red badge icon updates automatically every day! WIDGET ON TODAY OF NOTIFICATION CENTER ------------ • See the days left at a glance right on the notifications center • Navigate through your events • Open the app from the widget FULL SCREEN COUNTDOWN ------------ Watch the countdown of an event full screen. Put your device on the dock and use it as a digital countdown clock!!! PERSONILAZATION ------------ Countdown+++ was designed with simplicity and functionality. Stunning graphics make tracking time easy and awesome. Personalize each event, using multiple theme colors, alarms, notes, repetitions and other customizations. SHARE ------------ • Share your events from right inside the app • Create event pics, set backgrounds, add filters and share them on social networks: Instagram, Facebook, Twitter, etc. Countdown+++ MEANS PRODUCTIVITY ------------ Countdown+++ is the only countdown app that combines UNLIMITED dates and events with a completely clean and intuitive interface. MULTIPLE TIME FORMATS ------------ Select the time format to be used: • Live countdown, with precision down to one second • Days only • Weeks and days • Years, months and days COUNTDOWN STICKERS FOR iMESSAGES ------------ Want to send a "Hurry up" to your friends? You can definitely do that! Did someone send you an event? Put a "Mark the date" on it! With over 20 different stickers to choose from, there are lots of ways to share date & time topics and make your messages more fun!! MORE FEATURES ------------ • Create repetitive events (daily, weekly, monthly, quarterly or annually) • Import events from device’s calendar • Count down and up from dates • Instant event search • Sort events alphabetically, inverse alphabetically, by timeline, by inverse timeline, by date created or by date updated • Take screenshot of your current events list and set it as a lock-screen background

About

1+1 Calculator

A minimalist calculator app for iPad and iPhone, offering a modernized classic experience with an advanced clipboard mechanism. Personalize your calculator with premium color schemes to match your device.

Highlights
  • Minimalist design
  • Modernized calculator experience
  • Advanced clipboard mechanism
  • Premium color schemes
  • Personalization options
Features
Read full description

1+1 Calculator does the math and shows its work. Most calculators hand you an answer and forget it. This one keeps a running tape on the main screen — every expression and every result, with correct operator precedence — so you can check your reasoning, catch the slip, and tap any earlier answer to bring it back down. EVERYDAY MATH • An always-on tape, so you see the steps and not just the total • Calculators in tabs to keep separate jobs apart — name them, and each one works on its own • A scientific mode with trig, logs, powers, roots and parentheses • Binary for bits and bytes: 8- to 64-bit words, signed or unsigned, AND / OR / XOR / NOT and shifts, with every carry worked out • VAT / GST: enter net, tax or gross and get the other two instantly, at a starting rate you can edit • Tip & split: enter the bill, pick a tip, split it across the table • A memory bank for the values you keep reaching for MONEY, LOOKING AHEAD • Budget and trip-budget planners for what you actually spend • An interest calculator that shows how savings compound • A FIRE calculator to estimate your path to financial independence MADE FOR iPhone AND iPad • A warm, modern design with eight color themes • System, Light or Dark, however you like it • Two calculators side by side on iPad • Hardware keyboard support, and a Control Center button to launch straight in (iOS 18 or later) Free includes every calculator, one clean tab at a time. Infinity — a one-time purchase, or a monthly or yearly auto-renewing subscription — keeps every tab unlocked, gives you a tape up to 10,000 calculations deep, all eight themes, and two calculators side by side on iPad. No ads. No tracking. No account. Just a fast, honest calculator. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://calculator.huyhoang.nl/privacy

Screenshots

Countdown+++4 screens
1+1 Calculator4 screens

Verdict

The call

The clearest difference is price: Countdown+++ at $0.99 against 1+1 Calculator's $19.99. Countdown+++ also leads on rating (4.7 vs 4.0) and ratings volume (5.8K vs 1). On update cadence, ads, in-app purchases and monetization model 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

Countdown+++ costs $0.99 and 1+1 Calculator $19.99 up front. Countdown+++ sells 1 one-off in-app purchase and 1+1 Calculator sells 4 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Countdown+++ holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: Countdown+++ has 5.8K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Countdown+++ ships an update every 3 weeks, 1+1 Calculator fortnightly. The most recent releases landed on October 26, 2026 and October 22, 2026 respectively.

Scorecard3 real differences · 7 level
Countdown+++ versus 1+1 Calculator: the parameters behind the verdict, then further details
ParameterCountdown+++1+1 Calculator
Price$0.99 — better$19.99
Rating4.7 (5.8K ratings) — better4.0 (1 ratings)
Positive reviews77.1% of reviews—
Number of ratings5.8K — better1
Update frequencyEvery 3 weeksFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better16.0
Further details — not scored
Size4 MB15 MB
Age rating4+4+
DeveloperThomas TsopanakisHUY HOANG

Customer experience

Countdown+++

All ratings5,818 ratings
Positive95.1%
Neutral2.3%
Negative2.6%
Written reviews375 reviews
Positive77.1%
Neutral6.1%
Negative16.8%

1+1 Calculator

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

Bugs and requests

Countdown+++

Reported bugs

3 issues
  • Events disappearing after closing app
  • Red badge icon not working
  • Countdown not updating correctly

Requested features

5 requests
  • Repeat events option
  • Countdown in weeks/months/years
  • Ability to add photos to events
  • Widget/lock screen countdown display
  • Sync across devices

1+1 Calculator

Not enough reviews yet to summarise bugs or requests.

In-app purchases

1 purchases

Countdown+++

One-time1
  • Colors Pack$0.99
4 purchases

1+1 Calculator

Subscriptions2
  • 1+1 Infinity 1 month subscription$2.991 Month
  • Infinity Annual Subscription$14.991 Year
One-time2
  • Remove Advertisements$2.99
  • 1+1 Infinity Lifetime Purchase$24.99

Questions

Is Countdown+++ free?
Countdown+++ costs $0.99, and also offers in-app purchases.
Is 1+1 Calculator free?
1+1 Calculator costs $19.99, and also offers in-app purchases.
Which has better reviews, Countdown+++ or 1+1 Calculator?
Countdown+++ is rated higher. Countdown+++ averages 4.7 out of 5 from 5.8K ratings, while 1+1 Calculator averages 4.0 from 1 ratings.
Do Countdown+++ or 1+1 Calculator have ads?
Neither Countdown+++ nor 1+1 Calculator shows ads.
Which is updated more often, Countdown+++ or 1+1 Calculator?
Countdown+++ ships an update every 3 weeks, and 1+1 Calculator fortnightly. Most recently, Countdown+++ was updated on October 26, 2026 and 1+1 Calculator on October 22, 2026.

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