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Convert 1.0.1: in review / Holy shit!

by John Casasanta
August 27, 200938 comments

in review

Convert 1.0.1 was just submitted to Apple and is now in review:

What’s new

  • fixed incorrect conversion values
  • added Philippine Pesos to currency (I feel like we’re being pranked… we’ve had about a million requests for it so we put it in this update… more currencies to follow in our next update, which will be more substantial than this “quick-fix” one)
  • added milliliters to volume
  • fixed typos
  • minor graphics revisions

And now onto the “holy shit!” part of this post…


Convert has blazed up the charts over the past two weeks since we launched it to currently rank as the #2 top paid app in the US App Store. Over 40,000 Just under 50,000 copies have been sold worldwide so far in the short time that it’s been out. To say the least, we’re all completely delighted with how much people are into the app, especially its UI! I feel like all our efforts in creating it were completely worth it.

Here’s how the sales look for the first two weeks (the craziness on the right side coincides with it breaking into the Top 10):

daily sales


I was waiting around for yesterday’s sales to be posted so I could include them in the chart but they’re delayed. Hence the missing slot at the end. We were originally at #3 when I wrote the post, but in the span of waiting for the sales report, we jumped up to #2 and I had to redo parts of the post to reflect that. Trust me, I’m not complaining about this. :D

In any case, it’s now approaching 7am… and I’m hella-tired. I’m going to set the post live and update the chart with yesterday’s sales when I wake up.

Update: Yesterday’s sales are now out so I updated the chart to reflect them. Rising up to #2 brought in almost 9,000 sales for the day. This puts the total for the two weeks to just under 50,000. Wow.

We’ve obviously got our sights set for #1. We’ll see if we can get there…

Of course, we could cheat a bit and just pretend that only the iPod touch exists since Camera Genius isn’t available for it.

I just want to take a second to send out a huge thanks to all the incredible members of the team who worked really hard to make Convert such a great app… Wolfgang for doing such amazing design work and for being one of my favorite people ever to work with, Scott for all his great UI ideas (most of the way the custom picker works was dreamed up by him), and Kevin for doing such a superb job with the programming (and also for his awesome idea for the Convert design evolution video).

We’ve gotten a ton of feedback and although we’re not able to directly reply to each and every one of you, I want to assure you that we’re definitely listening and we’ll be making many more improvements to Convert over time. Thanks also goes out to all of you for helping us have such an amazing launch!


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Who linked to this


  1. Csongor Kiss
    8:57am, August 27, 2009

    Convert is just awesome! The best unit converter application around there. 5/5…

  2. Josh Holloway
    8:57am, August 27, 2009

    It’s very refreshing to see great apps at the top of the charts rather than endless “Touch to Fart” or “Camera Zoom Even Though It’s Not Really a Zoom” apps. Congratulations for the sales so far, and I hope to see you guys at #1 very soon!

  3. Sebastian
    9:02am, August 27, 2009

    Great functionality, over-the-top design and well worth the money. The factors of a great iPhone App. I couldn’t be more pleased with my purchase!

  4. Jason Wun
    9:02am, August 27, 2009

    I have one of those 40.000 copies!!

    Keep it up! :-)

  5. Derek Giromini
    9:08am, August 27, 2009

    In your FACE, Frogger.

  6. Josh H.
    9:10am, August 27, 2009

    Congrats on the success of your app!

    But uhh… I think you should install those 38 updates on other applications, don’t you? haha

  7. Wes Mitchell
    9:12am, August 27, 2009

    Congrats on the success of Convert! I have it, I love it. On a more serious note…whoever owns the iPhone that is being used to screenshot the top 10 should consider updating a few of those 38 available apps!


  8. Matthew
    9:21am, August 27, 2009

    does it load up faster?

  9. Moridin
    9:54am, August 27, 2009

    Please add Polish Zloty (PLN) to the currency list. :)

  10. everzet
    10:09am, August 27, 2009

    Please, add the (“Belarusian ruble”) to currency. Please, please, please! It’s hard to live without it =)

  11. Bastien
    10:19am, August 27, 2009

    Could you make the currency conversions run on a XML frame where the user could simply download a new XML file via a web service if a new one is available?

    This would make updates to certain things simpler for the user and you guys wouldn’t have to submit to the AppStore for approval

    just a thought

  12. Dr. Mahmoud H. Al-Johani
    10:25am, August 27, 2009

    The Graphical element and the easiness are so wow. I just wonder is it possible to add Currencies other than those in the App.

    Keep up the good work

  13. Joe Case
    10:30am, August 27, 2009

    Love the app but I don’t get to use it often due to the fact that my currency (Costa Rican colon, currently) is not supported. Currency conversion is the primary use case for me. Hope 1.0.2 will resolve this and be available soon!

  14. Eric Portnoy
    10:50am, August 27, 2009

    what can i say… This is the best app ever! i use it every day for different things and its great that you can use calculator directly in the converter, excellent app, Keep the good job.

  15. Dan Kit
    11:15am, August 27, 2009

    My 3rd converter app and, by far, the best. I’ve also have a currency request - the CFP Franc ( Please?! Thanks!!

  16. Alan
    11:20am, August 27, 2009

    The jump of course is the Gruber Effect - a link to the video of the app’s UI development was posted on his blog on the 25th.

  17. Adrian Ziobro
    11:42am, August 27, 2009

    Please, add the Polish złoty (łoty ) to the currency conversion module in the next version of your great app :-)

  18. Adrian Ziobro
    11:44am, August 27, 2009

    Sorry, the wiki link is broken in my previous comment. Here’s the working one:

  19. Richard Zapata
    12:51pm, August 27, 2009

    I have one of those… Hey, in that next update, can you toss in Colombian Pesos, too? :-)

    Love the app and all your success! Good job!

  20. Josh
    1:55pm, August 27, 2009

    Wow, 40,000 sales… thats more than $26,000 (USD) in two weeks. Not bad. Congratulations. Lets hope that Convert has a steady place as the premier unit converter for the iPod. Beautiful app, deserves every sale it gets!
    Request: Disable categories/units/calculator.

  21. Numbers
    1:58pm, August 27, 2009

    Hi, the worldwide numbers are interesting. Can you please post the US sales numbers as well (because US rankings are tied to US sales)

  22. David
    2:33pm, August 27, 2009

    Sounds like a great app. But….

    Beautiful looking website here.


  23. scott
    4:24pm, August 27, 2009

    nice job! convert is a great app

  24. Noel Milan
    5:57pm, August 27, 2009

    Thanks for adding the Philippine Peso… didn’t know it was a huge demand!

  25. Samuel Lavoie
    6:24pm, August 27, 2009

    Holy shit ^_^ thats a wesome milestone, 50k you did it. Great app and you guys rock with your communication

  26. Chris Healey
    6:35pm, August 27, 2009

    Looking forward to this update getting approved. I was one of the people requesting Philippines pesos :).

    Thanks alot guys, awesome app. (I was playing with it while watching are you smarter than a 5th grader yesterday) I totally would win that show with this app haha!

  27. Federico
    7:18pm, August 27, 2009

    Great app, I work in construction, and have to transform from inches to mm, yards to m and feet, and acres to hectares on a regular basis.

    Ive downloaded at least 4 converters, including babelfrog, units, the converter and yours, you blew them all out of the water.

    IS there a chance I could request a feature.
    It would be really cool to add a steel weight calculator for construction.

    that would be volume in area in mm^2 multiplied by lenght in m multiplied by steel density wich is 0.0078 kg/mm^2 x m

    so for example a 16mm steel bar weights 16x16 x 3,141592/4 x Lengh in metters x 0,0078.

    And then i can transform into other weights. I ususally need an RPL calculator or spreadshit. it would be awesome if you can come up with some way to do this fast.

  28. Charles
    10:25am, August 28, 2009

    Nice apps, thanks.

    Feature requests : in the area list, can you add arpent (it’s still used a lot in French Canada, specially for people who buy / sell piece of lands) it’s hard to translate…

    1 (square) arpent = 32,400 French square feet = about 3419 square metres


  29. Haruspex
    4:54pm, August 28, 2009

    You forgot Poland x_x

  30. Matt Rix
    9:49pm, August 28, 2009

    While we’re making conversion requests, can you add minutes/kilometre and minutes/mile to speed? They’re pretty much the standard way to measure running speed.

  31. ZeTaBYTeS
    7:36am, August 29, 2009

    Please add an option to disable auto-update of currency. Manual update is suffice. Thanks for making a great app :)

  32. ZeTaBYTeS
    6:40pm, August 29, 2009

    Convert 1.0.1 is online now!

  33. Ian Chesterman
    11:52pm, August 30, 2009

    Glad to see a rapid fix in 1.0.1 to the UK Gallons/Litres conversion factor I wrote about a couple of days ago.
    I still urge you to include a Fuel Consumption converter for Miles Per Gallon(MPG) to Litres/100km.
    Ian Chesterman

  34. Graham Murfett
    12:27am, September 2, 2009

    Yes please, Fuel Consumption converter for Miles Per Gallon(MPG) to Litres/100km L/100km.

  35. Cameron Smith
    7:23pm, September 5, 2009

    Congrats! You guys definitely deserve it!

  36. iboman
    5:09am, September 8, 2009

    Convert is the first application I bought for my new iPhone. Congrt on taptap team.
    One request: Turkish Lira for the currency converter.

  37. Dromieuronmam
    12:58pm, November 4, 2009

    Very Recently, there has been a good deal of litigation by the
    FTC against bloggers and website promoters
    for not stating their advertising revenue, or potential
    relationships with advertising agencies.

    What are your thoughts about how this could potentially hurt
    the blogging community?

  38. shuping
    4:06pm, December 31, 2010

    will convert work on ipad?

the comments are now closed