iTunes Gift Card Giveaway – Extended!

December 17, 2009 Leave a comment

IconKidCalc teaches number recognition, counting and math to pre-schoolers, kindergarteners and elementary school aged children using engaging flash cards, math puzzles and number games.

Unlike similar apps, KidCalc has animated addition, subtraction, multiplication, and division lessons embedded in its puzzles and games.

In celebration of the release of KidCalc 1.8, I will be giving away one $20 iTunes Gift Card to a lucky winner every day until Christmas once a month with no end in sight!

To Participate:

  1. Follow @KidCalc on twitter
  2. Re-tweet the following text: Celebrate 123 Color becoming the #1 edu app with me! Follow @KidCalc, RT 2 #win #giveaway #iphone #ipad

The Fine Print:

  • No purchase necessary to enter.
  • Repeat entries welcome.  Up to ten (10) entries per twitter user, per day, will be counted, thereby increasing your chance of winning 10-fold.  Repeat tweets must be separated by at least 30 minutes.  Multiple tweets within 30 minutes will be counted as a single entry.
  • Winners will be selected randomly through
  • Entries that do not follow all of the entry requirements will not be considered.
  • Open to participants in the US only, 18 years and older.
  • One winner selected each month.
  • Winner will be notified on Twitter by Twitter mention within 24 hours after being picked.
  • Winner must claim the prize within 24 hours of being notified, or another winner will be chosen.
  • I reserve the right to modify or terminate this contest without prior notice to participants (notice will be posted right here should I terminate the contest).
  • Gift card will be awarded via email, as an iTunes Store Gift Card redemption code.  To redeem this code, go to the iTunes Store, click the Redeem link on the iTunes Store’s front page, and follow the instructions presented.  A credit will be applied to your iTunes account in the amount of the gift card.
Categories: Contest, Giveaway

KidCalc 1.8 Released – Adds Animated Multiplication & Division Lessons!

December 1, 2009 Leave a comment
Flash Card Showing The Number 1000

Voice Flash Cards Now Count and Speak Up To 1000!

IconCreated with the help of public and private school teachers, as well as parents homeschooling their children, KidCalc teaches crucial math skills to children ages 3-9 years old.

KidCalc was the #1 ranked education app during October, and it just got better!

KidCalc 1.8 has been released adding popularly requested multiplication and division drills. However, that’s not all.  Unlike similar apps that teach math, KidCalc includes animated multiplication and division lessons to visually illustrate and truly teach the process of multiplying and dividing quantities.

First I’ll give you the run-down of new features in KidCalc 1.8, and below that I’ll add freeze-frame screen shots of the animated multiplication and division lessons in KidCalc 1.8.

Skills taught in KidCalc 1.8:
* Addition (sums 0-1000)
* Subtraction (subtractands 0-1000)
* Multiplication (products 0-1000)
* Division (dividends 0-100)
* Animations to teach multiplication and division that are cooler than anything I’ve built in KidCalc so far
* Enhancements to the addition and subtraction animations to make them just as cool as the new animated multiplication and division lessons
* Counting 0-1000, forwards and backwards, by increments of up to 100
* Flash cards of prime, binary, and Fibonacci number sequences up to 1000
* Speed enhancements to the math puzzle game – the answer can be selected immediately after math problem is displayed, review can now be turned off
* Holiday background music for the Counting Snowflakes game (Jingle Bells, We Wish You a Merry Christmas, and Hava Nagila)

Here are screen shots of the new animated multiplication and division lessons and drills in KidCalc 1.8:

Animated Multiplication Freeze-Frame

Click the image to see a close-up.

Animated Division Freeze-Frame

Click the image to see a close-up.

Pricing and Availability:
KidCalc 1.8 is on sale now for $.99 (USD) and available worldwide exclusively through the App Store in the Education category.

Reviewers, please email me (KidCalc [at] about obtaining a review copy.

Categories: Uncategorized

Additional Screen Shots of KidCalc v1.7

November 13, 2009 Leave a comment

Introducing version 1.7 of KidCalc – Adding Four New Holiday Themes and Two New Learning Games

November 12, 2009 Leave a comment
flash cards - snowmen

Flash cards shown with Christmas theme applied.

IconCreated with the help of public and private school teachers, as well as parents homeschooling their children, KidCalc helps teach crucial math skills to children ages 3-9 years. Version 1.7 of KidCalc adds a large number of enhancements and new features.

New holiday themes including beautiful backgrounds and adorable little icons that celebrate Thanksgiving, Christmas, Hanukkah, and Kwanzaa are the first things you’ll notice.  I have also added animations throughout KidCalc, with falling leaves for Thanksgiving, snowfall for Christmas, falling flowers in the Springtime theme, and shooting stars in the Outer Space theme!

The full list of new and noteworthy features includes:

  • Thanksgiving, Christmas, Hanukkah, and Kwanzaa themes have been added with icons for counting.
  • Numeric flash cards teach counting with numbers, icons, and voice-overs for the numbers 0-100.
  • Numeric flash cards include an innovative index bar at the top of the screen to give context to the number on the flash card currently being displayed.
  • Numeric flash card settings include counting by 1s, 2s, 3s,… on up to counting by 25s.
  • Numeric flash card settings offer the option to sort flash cards in ascending, descending, or random sequences, and to select low and high flash cards – giving parents the power to decide when to introduce zero to their children, and how high the flash card deck should go before trumpets are sounded as a reward for reaching the end.
  • New age-based settings allow one-click configuration of all learning games for a given age.
  • A ‘Little Genius’ mode offers numeric flash cards comprised of numbers from popular sequences such as prime numbers (2, 3, 5, 7, 11, …) , binary numbers (0, 1, 2, 4, 8, …) , and Fibonacci numbers (0, 1, 1, 2, 3, 5, …).
  • Counting Snowflakes – A new counting game with animated snowfall has been added.
  • Animated snowfall, stars, leaves and flowers have been added throughout KidCalc to existing and new learning games.

KidCalc v1.7 Menu Screen

In addition to the above, I have also made enhancements based on feedback from parents and teachers including the following:

  • All recordings have been replaced with clearer, higher quality and higher volume recordings.
  • The Counting Puzzle can now be either 4 or 9 squares.
  • The Counting Puzzle can now be set to count by 1s, 2s, 3s,… on up to counting by 25s.
  • The Math Puzzle now provides settings for users to select operands to be included in math problems.
  • The Math Puzzle now provides settings for users to disable the review after a problem is completed.

System Requirements:
* iPhone or iPod touch 3.0 or later

Pricing and Availability:
KidCalc 1.7 is only $1.99 (USD) and available worldwide exclusively through the App Store in the Education category.

Categories: KidCalc v1.7

Introducing version 1.6 of KidCalc – Now With Animated Math Flash Cards and Learning Games

September 20, 2009 Leave a comment


Created with the help of public and private school teachers, as well as parents homeschooling their children, KidCalc helps teach crucial math skills to children ages 3-9 years. This timely Halloween themed version of KidCalc includes themed icons, such as jack-o-lanterns, haunted houses, bats, witches hats, engaging animations and even voice-overs by a child.

KidCalc’s puzzle games challenge children to complete a series of math problems. When a puzzle is complete children are rewarded with sounding trumpets and a full view of a picture they worked to reveal – one of 72 brightly colored still life and action photo that KidCalc includes.

KidCalc is four apps in one:

  • Animated math flash cards
  • Math drills
  • Counting games
  • Animated calculator

KidCalc’s animated calculator features an instant-replay button that replays animations and voice-overs for a previous math problem, also simulating button presses, providing children a powerful tool for learning math at their own pace. Some of KidCalc’s other user selectable themes include an outer space theme with planets, martians, UFOs, and moons, as well as a sports theme with basketballs, baseballs, footballs, and hockey pucks.

System Requirements:
* iPhone or iPod touch 3.0 or later

Pricing and Availability:
KidCalc 1.5 is only $1.99 (USD) and available worldwide exclusively through the App Store in the Education category.

A free version of KidCalc is also available. KidCalc LITE includes the full featured animated calculator and animated flash cards and puzzle games limited to the numbers 1-4.


Categories: Halloween, KidCalc v1.5

Additional Languages

September 16, 2009 2 comments

Would you like KidCalc to speak your native language?  We would like that too!  We need your help.

Send us a digital audio recording of your child counting to 20.   Make sure that he/she is counting slowly and clearly with small pauses between each number, and also with a bit of excitement in their voice.  The native iPhone OS 3.0’s Voice Memos app can be used to record your son/daughter’s voice.  Email the recording to and please specify in the subject line the name of the native language being spoken in the recording. Be sure to include your child’s first name and age in your email, and if you would like, also include your home city, state, and country.

If your son’s/daughter’s voice is selected you will be contacted by email and given detailed instructions for capturing his/her voice, along with a list of words needed.  Names of children whose voices are included in KidCalc will be listed on the KidCalc Info screen, and their voices will be on thousands of iPhones and iPod touches, helping kids learn math in your native language around the world!  (All recording submissions become the property of Steve Glinberg.)

Categories: KidCalc v1.5

Ideal KidCalc Update Frequency?

September 1, 2009 Leave a comment

I am interested in your thoughts on how frequently you would like to receive updates to KidCalc.  The pace of development will generally remain as rapid as it has been, however, the frequency with which I submit updates to Apple for release to users is something that I can vary, and I am interested in your thoughts.

One alternative is to submit my updates to Apple whenever I complete a feature that I think kids would be eager to begin using.  This is what I have been doing so far, and it has resulted in updates being released roughly every two to three weeks. 

I have received a lot of email from users, the vast majority of which has been messages of thanks, and conveying jubilation over the updates.  However some users have indicated that the update frequency has been higher than they prefer.  Do you feel the same way?

The other alternative I have is to bundle features together into feature sets, and release updates only as frequently as every one, two, or three months.

I want to hear what you think. Should I update KidCalc monthly, bi-monthly, or quarterly? Please add your comments to this post or email me directly at and tell me what the optimal update approach or frequency is from your perspective. 

I have a lot of features in the queue to be added to KidCalc, and I want to make sure to get them into your kids’ hands as soon as I can, without causing you frustration.  Thanks for sharing your thoughts with me.

Categories: Uncategorized