Calc Pro - The Best Calculator
10 Calculators & Converters
How much does Calc Pro - The Best Calculator cost?
Prices are current as of 1 Oct 2026.
10 one-time purchases from $0.99
In the United States, Calc Pro - The Best Calculator has 10 one-time purchases priced $0.99 – 7.99.
| Product | Price |
|---|---|
| Base Conversions | $0.99 |
| Calc Pro - Design Pack | $0.99 |
| Constants | $0.99 |
| Date & Time Calculator | $0.99 |
| Graphing Calculator | $0.99 |
| Statistics Calculator | $0.99 |
| Unit Converter | $0.99 |
| World Currencies | $0.99 |
| Financial Calculator | $1.99 |
| Calc Pro - Full Version | $7.99 |
See what Calc Pro - The Best Calculator costs in all 175 countries →
10+ alternatives to Calc Pro - The Best Calculator
| Calc Pro - The Best Calculator |   Calculator - MingCalc |   Calculator # |   Calculator for iPad₊ |   Calculator· |   Calculator HD Pro Lite |   Calculator Plus #1 |   Haseba Calculator |   Calculator + |   DayCalc - Note Calculator |   Calculator PanecalST | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Rating / 5 | 4.6 | 4.8 | 4.6 | 4.5 | 4.7 | 4.6 | 4.7 | 4.6 | 4.6 | 4.6 | 4.7 |
| Reviews | 26K | 249K | 146K | 128K | 106K | 73K | 34K | 30K | 18K | 4.9K | 3.8K |
| Released | 2011 | 2021 | 2011 | 2019 | 2012 | 2012 | 2012 | 2016 | 2010 | 2013 | 2013 |
| Monthly price | — | — | $1.49 | $0.99 | $0.99 | — | $0.99 | $2.99 | $4.99 | — | — |
| Annual price | — | — | — | $4.99 | $4.99 | — | $6.29 | $19.99 | $39.99 | — | — |
| One-time price | $0.99 | $3.99 | $0.99 | — | — | — | $8.99 | $2.99 | $3.99 | $1.99 | — |
The going rate for each plan in United States, in its own currency, shaded from the cheapest price on the row to the dearest. Plans fewer than four in ten of the priced apps sell are left out.
Calc Pro - The Best Calculator reviews
4.6 out of 5, based on 25,562 reviews.
What people like
- Combines many tools in one app
- Nice reverse polish notation calculator
- Currency updates help with conversions
What they complain about
- Ads pop up and block the screen
- Paid users still see annoying ads
- App crashes or freezes frequently
- Support never replies to emails
Great calculator
TY enjoy. Using it
Nice app, blocked by ads
Very happy with the app I paid one-time fee, now I can’t use because ads pop up and can’t be navigated through! You bricked your own app, no patience for that!
Good calculator
The math works fine. I can't get it to convert any units of weight except grams and kilograms.
Currency Exchange
May 12 2026 I keep sending feed back about this but it’s still the same. It’s so annoying that the app on currency keeps defaulting to USD GBP It should stay on last used or there should be an option to choose my defaults. I hate the fact that I have to constantly (every time) I use the app select my frequently used currency Because it keeps defaulting to USD GBP PLEASE FIX IT I can’t stand the fact that I have to keep selecting the currency I’m trying to convert to every single time. It never keeps the last used or (short cut it should have for most frequently used). In short… I have to always scroll to find my most used currency conversions. I would rate this 5 out of 5 but the annoyance of the currency which I use mostly, is quite frustrating. THE app is honestly quite amazing. I use the other aspects of it but I mostly use the currency conversion Update Dec 28 2025 Last used currency conversion still not dealt with on this app. I would rate it higher, but I reviewed this sometime ago and no update has been done on that aspect for frequently used currency conversions. That’s why it gets a two out of five.
No Amps?
I got the free version to try it out, but it does't have Amperes. I was trying to calculate if a power-supply would work on another device. Uninstalling for now. May try it later.
Great !
Would be nice if there was a monthly add on to compound interest
Can’t Close Ads So Practically Useless
Doesn’t matter how good it is because after a few calculations an unclosable unwanted ad pops up covering the entire iPhone screen and remains there for an eternity trying to force you to click on it. Meanwhile you can’t use the calculator so don’t bother. This is just a clickbait machine!
Great App
Great App for $10.99 and, possible taxes.
太多广告
太多广告，时间又长，很烦人
广告多
经常跳广告，实在不好用
The best calculator
I have used this for several years on both my iPad and iPhone. It is far and away the best.
Where Are The Cooking Conversions
I used to use this calculator app for cooking conversions. I think there was even a labeled cooking section under the calculator types. I don't see it anymore.
Being a must app on my cellphone for 10+ years
I’m a heavy user on currency exchanges and conversations. The currency updates had been a great help, I haven’t seen another Calc app feed this many diversions of math needs with in depth variations as this one. The only reason I give a 4 star is because lately the conversion update in the free version are about a couple days behind real time currency exchange. A must Calc app across my devices.
Great concept but unstable
I would love this calculator if it didn’t crash every few calculations. It has been this way for years. Looking for an alternative.
打不开，闪退
不知道为啥，以前好用的，现在突然打开就闪退，删了重新下载也一样
The End of My Search for Calc Apps
I use pi a lot and it is nicely placed on the keyboard. I prefer rpn. Even the appearance is aesthetically appealing.
Paid for App, still stuck with Ads!!
I like the app, but after paying for the app I still get the ads!! It states if you purchase, the ads go away! Didn’t work out that way. No one has offered a fix and I’m still out $8. I cannot use he app without being interrupted with an add. Most frustrating.
Took payment, didn’t remove ads. Support contact didn’t work
Decent calculator that didn’t remove ads after money was deducted from my account . I will remove the 1 star if someone removes the ads.... A couple weeks later, I still have the ads, and they have my $8! Ok. They refunded and I rebought and the ads are gone :).
廣告太多
以前很好用，已經用好幾年了 但最近廣告多到很噁心
烦
广告太烦了 真不好希望减少广告
It’s COOL
Yay
interruptins
your surveys are distracting, extremely so
Complete calculator
Best calculator I've ever used. Constantly using the conversion and currency versions. Nice that every calculator is in one app.
Not Accessible to IOS VoiceOver
I just downloaded this app and clicked to select the paid version without testing the app. I realized in a few taps that it is not accessible to IOS VO for the blind. Tried getting service to request a refund through the developer but, link didn’t pull up a contact form so, I’m leaving my feedback here hoping for a refund.
Cannot find contact
I bought this but still see Google ads. Why? Don’t know because I cannot find contact. Seems to be decent calculator but if I can’t get rid of ads I’ll eat the 8$ and get something else.
Súper
Muy buena la app con muchas prestaciones
Ok app, bad customer services and scam like business
I paid the full price of the Calc Pro $9.99 used very sparingly, got an update version 6.9 and now the app is playing ads constantly and asking to pays another full price. Contact via them via email, and their website to no avail. Clearly the developers are running this App like a scam.
Nice and complete
Don't need a calculator often but when I do, this one does it all well.
Sneaky Ads
Okay, but there should be ad disclosure, in my case video ad plays with finance pitch to students. I wonder if developers would like the same type experience, say rent a car and have the radio blast every few minutes while they drive? Very similar annoyance - making you hate their company and products.🤷🏼♂️
廣告很多
一個小計算機程式而已還要塞廣告，計算到一半就跳廣告，很擾人
Versatility
By far the most versatile calculator apart from money conversion…
Missing obvious constants
1 star for having the first thing I wanted ( plank length ) missing. You call this pro?! Why would you have plank time but not plank length?
Claudio
Simplement, superbe application!
不怎么样
广告太多了后面，算个数等你半天，人都要气炸了，一打开软件就要先看广告才行退出界面就又要重新看广告！不是说免费吗不需要app内购买吗。不喜欢用了虽然功能全可是太费时间看广告了，无语子了。
giáo án
lll
Very versatile
Not that many calculators that do both standard and reverse polish
If looking for a Statistics calculator, keep searching
One of their calculator is a statistics Calc, and a sorry one it is at that. It has a small list of linear regression functions, some permutation and combination calculations but not even a standard deviation function. Forget about X2 function either or z values and probabilities, average, correlation, or even median. To call this a stats Calc is just wrong. I would rate it zero star if I could. Somehow they think inverse tangent, cosine, etc is part of the basic stats tools. Wish I could get my money back. Maybe they omitted a screenshot of their statistical calculator on their App Store description for a reason…
Rino,
J'aime bien
不懂
这个怎么使用啊？有没有说明书？我想要计算N次方
That's No Moon...
Massive feature set, but achingly slow.
Great calculator. It has modules. Quite useful.
Even in the standard mode you can see your prior calculations by pressing a pen icon at the top right area of the calculator. The scientific calculator does logs and other standard functions. I use the unit converter all the time because I don’t remember the conversion factors. This was a fantastic purchase.
Great calc, but with a major flaw
This is really a great calc, but with a major flaw when in RPN mode. I reported the flaw repeatedly, with no fix and no acknowledgement of my reports, despite their promise in the help screen that they would ack bug reports and feedback. The flaw happens when the calc is in RPN mode, emulating a real HP RPN calc. It's about the key LastX. I am not going to explain how LastX should work - you either know it, or you don't, and if you don't, it doesn't matter; it means you are not in the RPN mindset. In this calc, LastX does NOTHING - it's totally, absolutely USELESS. I would have given it five stars, but because of their stubborness in handling - actually, not handling - customer's feedback and bug reports, I punish them with one star.
Finally a capable calculator with a good interface
Some calculators are too simple or too many functions you can't find when you need them. This has a great balance
Great app but...
Functionality I give 5 stars. Having to watch Joe Biden every 5 minutes and itching waiting 5 seconds to skip ad -3 stars. BTW its only Joe Biden ads, no other type/kind of ad. Throw in some Home Depot or some 20-year-old telling me about testosterone levels and the 5 foods to avoid after I watch his 20 minute infomercial in which he repeats 1,000 times that any minute now he’ll share this information, idk “...would you join my campaign?...” <skip> and downloading a different calculator
Graphing calc
Looking for a graphing calculator for school. App made me review before purchase. Fingers crossed.
Great
It’s fantastic
Paid for app, started showing ads
I paid for this app, but it suddenly started showing annoying ads. Several emails to support with no response.
C'est super! Merci
Vraiment bien, j'aime beaucoup!
Can not be used on 6s
Iphone 6s 64g
還可以
鍵盤字太小不能調整，而其內之參數期全，很好應用
Calc Pro - The Best Calculator price by country
A one-time purchase costs $0.70 in Canada and $1.54 in Hungary — 2× more for the same thing. Below is the going rate for each plan in every country that sells it — the middle price of what the app charges there, in the country's own currency with the dollar equivalent beneath it.
| Country | One-time |
|---|---|
| Afghanistan | $0.99 |
| Albania | $0.99 |
| Algeria | $0.99 |
| Angola | $0.99 |
| Anguilla | $0.99 |
| Antigua And Barbuda | $0.99 |
| Argentina | $0.99 |
| Armenia | $0.99 |
| Australia | A$1.99$1.38 |
| Austria | €0.99$1.12 |
| Azerbaijan | $0.99 |
| Bahamas | $0.99 |
| Bahrain | $0.99 |
| Barbados | $0.99 |
| Belarus | $0.99 |
| Belgium | €0.99$1.12 |
| Belize | $0.99 |
| Benin | $0.99 |
| Bermuda | $0.99 |
| Bhutan | $0.99 |
| Bolivia | $0.99 |
| Bosnia & Herzegovina | €0.99$1.12 |
| Botswana | $0.99 |
| Brazil | R$6.90$1.33 |
| British Virgin Islands | $0.99 |
| Brunei Darussalam | $0.99 |
| Bulgaria | €0.99$1.12 |
| Burkina Faso | $0.99 |
| Cambodia | $0.99 |
| Cameroon | $0.99 |
| Canada | CA$0.99$0.70 |
| Cape Verde | $0.99 |
| Cayman Islands | $0.99 |
| Chad | $0.99 |
| Chile | CLP 990$1.02 |
| China | CN¥8.00$1.19 |
| Colombia | COP 4,900$1.47 |
| Congo | $0.99 |
| Congo, Democratic Republic | $0.99 |
| Costa Rica | $0.99 |
| Cote Divoire | $0.99 |
| Croatia | €0.99$1.12 |
| Cyprus | €0.99$1.12 |
| Czech Republic | CZK 29.00$1.35 |
| Denmark | DKK 9.00$1.37 |
| Dominica | $0.99 |
| Dominican Republic | $0.99 |
| Ecuador | $0.99 |
| Egypt | EGP 49.99$0.96 |
| El Salvador | $0.99 |
| Estonia | €0.99$1.12 |
| Fiji | $0.99 |
| Finland | €0.99$1.12 |
| France | €0.99$1.12 |
| Gabon | $0.99 |
| Gambia | $0.99 |
| Georgia | $0.99 |
| Germany | €0.99$1.12 |
| Ghana | $0.99 |
| Greece | €0.99$1.12 |
| Grenada | $0.99 |
| Guatemala | $0.99 |
| Guinea-bissau | $0.99 |
| Guyana | $0.99 |
| Honduras | $0.99 |
| Hong Kong | HK$8.00$1.02 |
| Hungary | HUF 499$1.54 |
| Iceland | $0.99 |
| India | ₹99.00$1.03 |
| Indonesia | IDR 19,000$1.06 |
| Iraq | $0.99 |
| Ireland | €0.99$1.12 |
| Israel | ₪2.90$0.94 |
| Italy | €0.99$1.12 |
| Jamaica | $0.99 |
| Japan | ¥150$0.95 |
| Jordan | $0.99 |
| Kazakhstan | KZT 499.00$1.13 |
| Kenya | $0.99 |
| Kosovo | €0.99$1.12 |
| Kuwait | $0.99 |
| Kyrgyzstan | $0.99 |
| Lao Peoples Democratic Republic | $0.99 |
| Latvia | €0.99$1.12 |
| Lebanon | $0.99 |
| Liberia | $0.99 |
| Libya | $0.99 |
| Lithuania | €0.99$1.12 |
| Luxembourg | €0.99$1.12 |
| Macao | $0.99 |
| Macedonia | $0.99 |
| Madagascar | $0.99 |
| Malawi | $0.99 |
| Malaysia | MYR 4.90$1.20 |
| Maldives | $0.99 |
| Mali | $0.99 |
| Malta | €0.99$1.12 |
| Mauritania | $0.99 |
| Mauritius | $0.99 |
| Mexico | MX$19.00$1.05 |
| Micronesia | $0.99 |
| Moldova | $0.99 |
| Mongolia | $0.99 |
| Montenegro | €0.99$1.12 |
| Montserrat | $0.99 |
| Morocco | $0.99 |
| Mozambique | $0.99 |
| Myanmar | $0.99 |
| Namibia | $0.99 |
| Nauru | $0.99 |
| Nepal | $0.99 |
| Netherlands | €0.99$1.12 |
| New Zealand | NZ$1.99$1.12 |
| Nicaragua | $0.99 |
| Niger | $0.99 |
| Nigeria | NGN 1,500.00$1.13 |
| Norway | NOK 9.00$0.94 |
| Oman | $0.99 |
| Pakistan | PKR 300$1.08 |
| Palau | $0.99 |
| Panama | $0.99 |
| Papua New Guinea | $0.99 |
| Paraguay | $0.99 |
| Peru | PEN 4.90$1.42 |
| Philippines | ₱49.00$0.78 |
| Poland | PLN 4.99$1.30 |
| Portugal | €0.99$1.12 |
| Qatar | QAR 2.99$0.82 |
| Romania | RON 4.99$1.07 |
| Russia | RUB 99.00$1.18 |
| Rwanda | $0.99 |
| Sao Tome & Principe | $0.99 |
| Saudi Arabia | SAR 4.99$1.33 |
| Senegal | $0.99 |
| Serbia | €0.99$1.12 |
| Seychelles | $0.99 |
| Sierra Leone | $0.99 |
| Singapore | SGD 0.98$0.77 |
| Slovakia | €0.99$1.12 |
| Slovenia | €0.99$1.12 |
| Solomon Islands | $0.99 |
| South Africa | ZAR 19.99$1.22 |
| South Korea | ₩1,100$0.81 |
| Spain | €0.99$1.12 |
| Sri Lanka | $0.99 |
| St. Kitts and Nevis | $0.99 |
| St. Lucia | $0.99 |
| St. Vincent & The Grenadines | $0.99 |
| Suriname | $0.99 |
| Swaziland | $0.99 |
| Sweden | SEK 9.00$0.90 |
| Switzerland | CHF 1.00$1.20 |
| Taiwan | NT$30.00$0.94 |
| Tajikistan | $0.99 |
| Tanzania | TZS 2,900.00$1.09 |
| Thailand | THB 29.00$0.86 |
| Tonga | $0.99 |
| Trinidad and Tobago | $0.99 |
| Tunisia | $0.99 |
| Turkey | TRY 49.99$1.02 |
| Turkmenistan | $0.99 |
| Turks and Caicos | $0.99 |
| Uganda | $0.99 |
| Ukraine | $0.99 |
| United Arab Emirates | AED 2.99$0.81 |
| United Kingdom | £0.99$1.31 |
| United States | $0.99 |
| Uruguay | $0.99 |
| Uzbekistan | $0.99 |
| Vanuatu | $0.99 |
| Venezuela | $0.99 |
| Vietnam | ₫29,000$1.12 |
| Yemen | $0.99 |
| Zambia | $0.99 |
| Zimbabwe | $0.99 |
Calc Pro - The Best Calculator FAQ
- Is Calc Pro - The Best Calculator free?
- Yes. The app and its basic features are free, in all 175 countries it sells in. Premium features are paid: they start from $0.99 (US), across 10 one-time purchases.
- Does Calc Pro - The Best Calculator have a free trial?
- No. None of its offers (US) come with a free trial.
- Where is Calc Pro - The Best Calculator cheapest?
- A one-time purchase costs CA$0.99 (≈$0.70) in Canada and HUF 499 (≈$1.54) in Hungary, its cheapest and dearest countries.
- What are the best alternatives to Calc Pro - The Best Calculator?
- Calculator - MingCalc (4.8 from 248,895 reviews, premium from $3.99), Calculator # (4.6 from 146,144 reviews, premium from $0.99) and Calculator for iPad₊ (4.5 from 127,559 reviews, premium from $0.99).
Calc Pro - The Best Calculator download
Last updated 6 days ago.
Calc Pro - The Best Calculator sells in 175 countries. It was released 15 years and 1 month ago, on 17 Aug 2011. It holds a 4.6 rating from 25,562 reviews.
Supports 1 language: English.
How much does Calc Pro - The Best Calculator make?
Third-party estimates for the last 30 days, worldwide — not the store's own figures, which Apple publishes for nobody.
Revenue by plan
- One-time 100%
Revenue by country
- United States 34%
- China 17%
- Taiwan 6%
- Hong Kong 4%