A REFRESHING EVERYDAY CALCULATOR
I started this because every calculator I'd ever used felt exactly the same, a grid of grey buttons, technically functional, completely uninspired. You look at this thing dozens of times a day. I figured it might as well feel good to use.
DON'T TYPE IT. SCAN IT.
The part of daily maths that actually annoyed me wasn't the maths, it was the typing. Squinting at a receipt, a packing slip, a utility bill, trying to get a long string of digits into my phone without fat-fingering a number along the way. So I built real-time number scanning into Calki. Point your camera at any printed digits and they drop straight into your live calculation. No re-typing, no silent typos.
SCAN ON AUTOPILOT: OP MODE
Even scanning one number at a time felt too slow once you're working through a long list of expenses or measurements, so I added OP Mode. Turn it on and Calki keeps adding (or subtracting, multiplying, whatever operation you need) every number you scan, one after another, as fast as you can point the camera. No tapping the plus sign between items, just point, scan, and watch the total build.
TOTAL EDITING FREEDOM
I never liked that most calculators punish a tiny mistake by making you start the whole thing over. So in Calki, your equation is never locked in. Made an error three numbers back? Tap it, fix it, or remove it outright. Swap an operator mid-calculation without losing your place. It's your equation, you should be able to touch any part of it.
FLUID, CUSTOM CONVERSIONS
I got tired of jumping between three different apps just to convert a price, check a weight, and finish the maths. So the converter lives right inside Calki, built for speed: glide between units and categories in a single tap. And if you've got something specific to your own world, you can build a custom unit for it.
A HISTORY LOG WITH MUSCLE
Nothing winds me up more than digging through a buried menu to find yesterday's calculation. Calki's history stays close and stays useful: double-tap any entry to drop its result back into your current calculation, long-press to pull the entire original expression back onto the board, or add a note so you remember what a number was even for, weeks later.
RETRO FLAIR, MODERN SOUL
Last one is just personal taste. I don't think calculators need to look clinical and forgettable. Calki's design is inspired by the kind of premium, classic hardware I'd actually want sitting on my desk, and the themes are fully customisable if your taste runs differently from mine.
The buttons on the Retro and Industrial themes in particular took a lot of obsessing over. I wanted them to feel like a real high-end device in your hand rather than a flat picture of one, so each was built with realistic animation, haptics, sound, and design to back it up.
Thanks for reading this far, and hope you give Calki a try. It's a one-person project, so every download, review, and bit of feedback genuinely reaches me, personally.
Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
The Calki app has amazing haptic feedback and visual candy. The buttons feel like a real calculator and the readout screen has an amazing scroll feel, not to mention added functionality within.The themes are plentiful and attractive, some people may not like the chosen fonts, but I really dig them and there’s mention of them becoming customizable. The labeling of equations and the individual terms is super cool and very useful for the right scenarios.Lastly, the developer is bright and helpful! You can tell they love their product and work.Looking forward to the next update.
Developer Response
Thank you for taking time to go through all the features and for giving such a positive and detail review. As a developer you made my day, you can surely expect new features and improvements in the next update. Thanks again.
Beyond fantastic
Awesomesauras
$2…for lifetime…seriously, jump on this now. Beautiful ui, no more “google, what’s this unit converted” Simple switch. As different currency, heat, distance, etc. You can ACTUALLY make a banana measurement!
Developer Response
Thanks a ton for this, the banana measurement comment made my day! And yeah, the lifetime price won't stay this low forever, so appreciate you spreading the word for others to jump on it too!
Best calculator app.
CHOCOBASCO
The themes, haptics, and camera options really set this app apart from the rest. Give it a shot.
Developer Response
Really happy that you liked the themes, haptics and the scanning options, reviews like this motivates me make the app better. So thank you for taking time to write a review and recommending the app.
Why the change?
JTJTW0
I enjoyed the stronger haptics not sure why they were turned down.
Developer Response
The stronger haptics will surely be brought back as an option in the next release.Thank you for the review and letting me know your concern
- You can now select a number to edit or remove it, and select an operator to swap it.
- Fixed the iPad customisation page layout for landscape mode. Also fixed button scaling issues for certain themes.
Version 2.1.1
The developer, Vimal Parthan, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Usage Data
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Accessibility
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