- $0.99
- Category: Utilities
- Versions: 1 archived
- Installable: 1 of 1
- Seller: Quan Le
- com.vietlotus.hicalcpro
Requirements: Compatible with iPhone and iPod touch. Requires iOS 4.0 or later.
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Report an issueRatings Over Time
| Date | Version | Rating | Ratings | Price |
|---|---|---|---|---|
| November 3, 2011 | — | — | 53 | $0.99 |
| January 10, 2012 | — | — | 95 | $0.99 |
From archived App Store listing data, captured by the Wayback Machine.
Archived Reviews
8 of 15Suddenly if I try to scroll to any calc beyond basic or scientific (unit converter, for example) the app crashes and closes down.<br/>This has been my go to calc since it came out. Now it’s no better than the lame calculator that comes with the iOS. 😡
This calculator does not even open properly. Total waste. Apple needs to take it off the site.
I have been using this app for several years. It used to work fine, until when I upgraded to iPhone 12 Pro Max. This calculator doesn’t fit the screen when doing time/date, add/subtraction operations. This operation works fine in all older iPhones. I have never tested it on iPhone 12 Pro. I’m using iOS 14.4.2.
I use this application every day to convert temperatures between Fahrenheit and Celsius, and I frequently use it to calculate the time between dates over long periods, especially how it relates to setting target dates. I love how easy it is to use. I also use it to do a lot of conversion of area and volume, for example, converting square miles into acres.
My favorite calculator for iPhone stopped working after I upgraded to iOS 13 BUT the developer fixed that problem. The app is once again working like it should.
These are the best developers ever. My favorite calculator is back. Love the calculator and the developers!
I have been using this app for years. It was the best unit conversion app because it provides all kinds of unit conversion including the date function in that you can add and subtract from any date, or find the difference between two dates. Unfortunately since 2023, the calculator doesn't fit the screen when doing time/date, add/subtraction operations. I have submitted two feedbacks to the developer without seeing any bug fix on this issue. I am using iPhone 17 with iOS 26.2
Congratulations! give yourself a stamp! but wait... its missing trigonometry... yeah, TRIGONOMETRY IS MISSING!!!
Period reviews recovered from Apple's customer-review feeds via the Wayback Machine.