Calcbot 2

• Calcbot Pro — $1.99

Last verified 9 Sep 2026

4.7 11113 ratings · App Store

1. 2/5A very poor user interface

   Just because you can do things doesn’t mean you should. There are many things the developer probably thought were cute but severely impact usability. (1) After keying in the first number and pressing an operations key, as you’re inputting the second number the display shows the result you would be getting should you press equals or another operator key rather than showing you the number you’re keying in. You can see the number you’re keying in, but it’s very small and below the main display. This means that when you’re unsure of what you’ve keyed in there’s a significant delay while your eye finds the right thing to look at. No other calculator behaves this way. You see the number you’re keying in until you hit = and then you get the result. (2) swiping the display one way erases the last digit entered. Swiping the other way takes you to conversions. Related actions for totally unrelated functions. Since there’s already a delete button, why duplicate in a confusing way. (3) Way to many presses to send conversion results back to the calculator while sending to conversion requires no presses. (4) Conversion icons are mostly obscure. (5) Family sharing “isn’t supported” but it took reaching out twice to get this answer. Developer is unresponsive to those of us who have purchased the “pro” version and hasn’t updated the app in 2 years. I’ll be looking for something else. I’d advise you to do the same.

   Delta Juliet Sierra · 9 Sep 2026

2. 5/5Unique in a way that makes it efficient

   Unique in that you are entering an equation and it shows the result in real time as you enter terms. So you don’t need to hit equals sign very often at all, unless you want to remember the result in the tape. When you’re calculating multiple things times a common base value this makes for reduced keystrokes. For example if you want to calculate the calories and protein in a given weight of food (Dried Cranberries, say, which has 3.25 calories / gram and 0.025 grams of protein / gram). You type the 17 grams you ate first and then the multiply symbol. Then you type in 3.25 for calories and see the result without having to hit equals. Then use the delete key to delete the 3.25 and type .025 and see the protein result. Didn’t have to reenter the weight or the multiply symbol or the equals - faster and easier than other calculators! Multiply this time and keystroke savings by every ingredient you eat in every meal and snack every day of the year and you’ve saved enough time for at least a week of vacation on a beach on Maui! :) Other nice attention to detail like holding down on the delete/backspace key to delete all / clear the current equation really shows design and care that add up to a sweet little app.

   sorbett · 9 Sep 2026

3. 2/5Limited Functionality

   Used the old Convertbot since it was first released and it was, hands down, the best converter APP across all platforms. I work across multiple technical disciplines (aviation, engineering, programming and finance) and travel extensively. Calcbot is a poor substitute for Convertbot. Forget the interface, I can deal with that, but even after purchasing the Pro version of Calcbot, it only has a fraction of the conversions available in Calcbot with no way to select new units as in Convertbot. Calcbot is but no more than average when compared to other converters and a serious disappointment to those who were used to Calcbot. I’d even be willing to pay a subscription fee if Calcbot were again made available. You guys had it nailed with Convertbot and took a giant step back with Calcbot.

   XLoFlyer · 9 Sep 2026

4. 2/5Became useless after a long time of flawless operation.

   I’ve been using Calcbot for considerable amount of time. Purchased it before their was an option for pro. In the last year it has become painful to use. The problem is the delay when opening the app. It begins to pinwheel and freezes while it does I don’t know what. I’m usually going through quickly and when I have to wait 30 seconds about every other time I jump into the app before it’s usable, it becomes extremely frustrating. At times I just need a quick calculator, and Calcbot was my go to calculator. But it’s been such a pain and frustration that I had to leave a review. I don’t know what you guys did to a great simple and functioning app. But it’s broken, and a source of aggravation.

   unclefox · 9 Sep 2026

5. 5/5Way better!

   I like this app so much better than the one that comes installed on the phone. It keeps a history that I can search through later. I can even star/fav the ones I know I want to keep handy or notice I might need again. I can also slide to delete the ones I know I won’t be needing later. It’s great for all the functions I need everyday and so much more so I don’t have to worry when I need to do advanced calculations. I know I can do it all right from my iPhone or Pad so I don’t have to carry around a separate calculator in my bag. Yay me, now I have room for something else I might need :).

   RockinRobin773 · 9 Sep 2026

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