Tydlig 1.1 for iOS (iPad screenshot 001)

Apple is celebrating the life of a college student so they’re giving away one education-themed app each week via the official Apple Store client for the iPhone and iPad.

Although some other promo offers are available only to Apple Store visitors, anyone who has downloaded the free shopping app to their device and has a U.S.-based iTunes account can now download Tydlig for free.

Note that these promos are separate from Apple’s ongoing Free App of the Week so iOS apps which go temporarily free in the Apple Store app still cost money when accessed regularly in the App Store via their iTunes links.

In the past two weeks, two high-quality apps have gone temporarily via the Apple Store app (not to be confused with the App Store): the gorgeous Rise Alarm Clock and Runtastic Pro, a premium version of the popular fitness tracking software.

If you love calculators, the advanced Tydlig for the iPhone and iPad will be free until next Wednesday, a $2.99 saving.

Here’s how you can redeem your free copy of Tydlig…

Previously highlighted in the App Store’s Productivity Monday feature, Tydlig by Andreas Karlsson is an ingenious calculator for iOS. The uniquely designed freeform calculator makes it dead simple to reference previous calculations by tying any operation to a result, creating a dynamically updated value.

Being able to drag numbers around and see how graphs change as you use the slider can be a very enlightening way of learning, according to developers, because it reveals the “beauty of the relationships” between numbers and gives an “intuitive feel for math, rather than focusing on the tedious manual labor” usually required in class.

Of course, you can change any of the values and the updated results will cascade down these linked numbers.

As Apple explains:

This week work with Tydlig, a calculator reimagined to help you with everything from tips and discounts to real-time graphing. Work smarter, not harder by referencing your previous calculations, and share your work by printing or exporting results as a high-quality PDF.

In addition to freeform canvas, responsive results and linked numbers, Tydlig includes other great features, too, such as real-time graphing, value annotations, undo, Bluetooth keyboard support, fast calculation engine, over 20 mathematical functions and scientific notation formatting options and much more.

And here it is in action.

To learn more about Tydlig, check out our mini-review.

How to redeem your free copy of Tydlig

Step 1: Download Apple’s official Apple Store mobile app to your iPhone or iPad free from the App Store. Fire up the app, tap the Stores section and choose any retail store under All Stores, or search for a specific store (i.e. ‘Fifth Avenue’).

Apple Store (free app, Tydlig 001)Apple Store (free app, Tydlig 002)

Once you land on a store page, look for Tydlig halfway down the section.

Step 2: Tap the entry and up pops a prompt offering a promotional code for the calculator app. Now hit the big green Download now for free button at the bottom.

Step 3: Doing so will yank you out of the Apple Store app and open the iTunes app. Upon signing in with your Apple ID, you should be able to redeem the code.

Apple Store (free app, Tydlig 003)Apple Store (free app, Tydlig 004)

Step 4: If all goes well, your download will begin automatically and you’ll seed a confirmation message like this. Note that this offer requires that you redeem Tydlig with a U.S. Apple ID, iTunes Store or App Store account.

Apple Store (free app, Tydlig 005)

But don’t worry, iDownloadBlog has you covered — simply create yourself a US-based Apple ID account without a credit card and you’ll be able to download apps, music, movies and other free iTunes items.

Be sure to check back next week as a fourth and final college-themed app goes temporarily free, hopefully helping you get more from your iOS device, in class and out.

In the meantime, do yourself a favor and grab Tydlig now.

  • Salman Arif

    The offer is available on the UK iTunes Store as well.

  • Gate

    This is my favorite Calculator App,
    I recommend everyone to download it and at least try it out 🙂

    Thanks again Christian!

  • Tim Warnecke

    Available on the German iTunes Store as well.

  • Héctor Viveros

    Kind of tricky to download it in the Mexico AppStore, but it’s done 😀


  • James M.

    How do you get this on the iPad Apple Store?

    • Jamessmooth

      don’t think it’s available. I’m on there now and can’t find it.

    • Fernando Ladeira

      James, I don’t think you can… At least I couldn’t…

    • Saudor

      search for apple store.. and switch the tab to iPhone only from iPad Only. Once apple store app opens, it works fine (canada)

      • RogWilco

        Hmm, I get a prompt to open the iPad version and no way of bypassing it…

      • Someshwar

        Same here 🙁

        Hard luck, iPad users!

      • Fernando Ladeira

        Saudor, we can download the iPhone version of the store… But when we try to open it we get a popup saying “download the ipad version”… That’s Apple simplicity… heheheehhe… So no juice for us!!!!

      • Saudor

        really? i went through the iPhone apple store app on an iPad4, iPad2, and iPad Air all running iOS 7.1-7.1.2 and it worked like a champ.

    • Mambata Utunzi

      Got it. Here is what I did. Used my ipod 4 to do all the above and got my redeem code. Then logged into store and redeemed code and hooray. Good luck

    • TheShade247

      Go to app store, search for Apple store, change the option at the top ipad only to iphone only, download iphone version, open app and follow this blog

  • andyr354

    Cool looking but I have no clue what I would do with it.


    It works like a charm. USA store, Thanks Christian

  • GuyWithTheThings

    What luck! I was just wanting this app last night and was about to buy it. Glad I didn’t! 🙂

    • ericesque

      Hah! I’ve been waiting for it to go free for months! Almost pulled the trigger during a sale recently. Glad I didn’t! 🙂

  • Fardeen Beharry

    i have a US account but i cant download the apple store app because its asking me for billing information 🙁 and i cant use my own country credit card as it wont. anyone can help? any workaround?

  • bigkev943

    just got it

  • Aaron de Silva

    Seems like Australia stores are giving away a running app

  • Ilya Kos

    Australian stores are offering runtasti © pro for free

    • Saulo Benigno

      Thank you very much, worked for me. Thanks 🙂

  • TheShade247

    Offer is available in Canadian apple store app

  • nfinite

    just download it, cool app..

  • hkgsulphate

    probably app of the week

  • Suresh

    Rise Alarm clock app is not available in App Store. Please anyone suggest me which app store is it available still redeem option available?

  • Waldemar Cichon


    is there a possibility to download this app in this week? I was at holidays without my iPad, so I couldn’t download it at right time. They write, that the offer ends on september, 12. But how can I download it, I only see the actual offer.