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Calki: Scanner Calculator

Calki: Scanner Calculator

Unit & Currency Converter

15 ratings
11 reviews
With Ads
📚 Education
🔧 Utilities
Free
In-App PurchasesWith Ads

Details

  • Released
  • Updated
  • June 10, 2025
  • October 1, 2026

Developer

Vimal Parthan
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Calki: Scanner Calculator screenshot #1 for iPhone
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Calki: Scanner Calculator screenshot #10 for iPhone
iphone
ipad
🧾$5.99
In-App Purchase↘︎
⭐11
Reviews↘︎
🔄6+ apps
Alternatives↘︎
🎪2 available
Events↘︎
❓8 answered
FAQ↘︎
📦~ in 1 week
Updates frequency↘︎
🖼️Get Icon
Icons↘︎

About

This app combines a powerful camera number scanner, a full-featured unit converter, and a beautifully designed calculator. It allows you to scan numbers from documents, convert units across various categories, and perform calculations with live previews and advanced history.

✓Camera number scanner (OCR)
✓Unit converter with 12 categories
✓Smart calculator with live preview
✓Advanced calculation history
✓Customizable themes and fonts
✓Ad-free experience
Show original description

What's New in Calki

2.1.2

October 1, 2026

- Haptics Customisation: Personalise your keypad feedback with new tactile haptic styles, including free options and an expanded selection for Pro users. - Smoother Expression Editing: Enjoy a cleaner, more responsive visual indicators when editing numbers and swapping operators. - General Polish & Discovery: Refined contextual tips and subtle visual improvements throughout the app.

More
2

Subscriptions & In-App Purchases

Calki Pro Yearly

Unlock Number Scanner and Customisation features

$2.991 Year
7 Days trial
How to cancel Calki subscription ⁉️

Events

Read more about Instant Number Capture
Event EndedPremiere

Instant Number Capture

Turn camera into a keypad. Skip typing. Try now!

Dec 10, 2025 — Jan 10, 2026

Read More

Read more about Quick access widgets
Event EndedPremiere

Quick access widgets

Open Calki from Controlcenter and LocKscreen

Oct 26, 2025 — Oct 30, 2025

Read More

See All

User reviews

Most RecentHighest RatedLowest Rated

nice

I like the unit conversion tools
MoyHSMoyHS

Response from developer

Thank you for taking time to provide the review. Super excited to know, you found the conversion features useful. Will be bringing more features in the near future.

Best calculator app.

The themes, haptics, and camera options really set this app apart from the rest. Give it a shot.
CHOCOBASCOCHOCOBASCO

Response from developer

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.

Beyond fantastic

$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!
AwesomesaurasAwesomesauras

Response from developer

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!

Nice Calculator

Updated 3/28/26: The latest update adds an easy-to-use converter weight, area, currency, and length to name a few. Plus the addition of a new, Retro theme.

This app continues to be my go-to calculator/converter app. Well done.

The included themes are very cool. As for the calculator, I like how you can create formulas without the need of the memory function that other calculates have. Well done.
Show more
Godfadda57Godfadda57

Response from developer

Thank you for being one of the first to review the app and expect more useful features in the feature. Glad you liked the favourites ( memory function) feature. Wish you a good day.

⭐️⭐️⭐️⭐️

great haptic feedback. i do wish animations were 2x speed.
985!?&2:'l985!?&2:'l

Response from developer

Hi, the animations have been made more faster in our latest version 1.4, would love to hear your thoughts.

See 6 more reviews

FAQ

Does Calki have ads?

Yes, Calki contains advertisements. While it is described as ad-free in its core functionality, the monetization model indicates the presence of advertisements.

What is the price of Calki?

Calki is available for free. There are no upfront costs to download or use the basic features of the app.

What devices does Calki support?

Calki is currently supported on iPhone devices. It is optimized for a seamless experience on iOS.

How often is Calki updated?

The latest version of Calki was released on March 25, 2026. This indicates a recent update, suggesting the app is actively maintained.

What is the age rating for Calki?

Calki has an age rating of 4+. This means it is suitable for users aged four and older.

Can Calki scan numbers from documents?

Yes, Calki features a Camera Number Scanner (OCR) that allows you to point your camera at any receipt, document, or screen to grab numbers instantly.

What unit categories can Calki convert?

Calki can convert units across 12 categories instantly, including Length, Weight, Volume, Temperature, Speed, Pressure, Power, Force, Energy, Area, Time, and Currency.

What makes Calki's calculator smart?

Calki's smart calculator offers a live preview where the expression and result update in real-time as you type. It also features advanced history options like labeling calculations and reusing results.