OneCalc: All-in-one Calculator
Calculates everything. Try it.
How much does OneCalc: All-in-one Calculator cost?
Prices are current as of 7 Sept 2026.
OneCalc: All-in-one Calculator has no in-app products on record in the United States.
10+ alternatives to OneCalc: All-in-one Calculator
| OneCalc: All-in-one Calculator |   ClevCalc - Calculator |   Fraction Calculator Plus #1 |   Conversion Calculator Plus |   Calculator with History Tape |   Calculator: Pro |   Calcularium |   Figure calculator ShapeInfo |   iHP48 |   Uno Calculator |   Fraction Calculator | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Rating / 5 | 4.6 | 4.7 | 4.8 | 4.7 | 4.7 | 4.6 | 4.5 | 4.7 | 4.8 | 4.6 | 4.7 |
| Reviews | 18K | 230K | 37K | 26K | 18K | 8.9K | 6.4K | 4.4K | 790 | 512 | 206 |
| Released | 2018 | 2017 | 2012 | 2016 | 2019 | 2020 | 2014 | 2014 | 2021 | 2019 | 2016 |
| Monthly price | — | $2.99 | $1.99 | — | — | $0.99 | $3.99 | — | — | — | — |
| Annual price | — | $24.99 | $8.39 | $9.99 | — | — | $29.99 | — | — | — | — |
| One-time price | — | — | $17.49 | — | $9.99 | $3.99 | $199.99 | — | — | — | — |
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.
OneCalc: All-in-one Calculator reviews
4.6 out of 5, based on 17,719 reviews.
What people like
- Helpful for work and school tasks
- Many useful conversion tools included
- Shows multiple zeros for accounting
- Easy to switch between modes
What they complain about
- Ads pop up even after paying
- Fake virus scams scare users
- Memory wipes when an ad closes
- Wrong math answers for order of operations
VG calculator
I really like this calculator. All the math functions i need and then some.
Wrong calculator
Wrong calculator how can i reach you by email or mobile numer... i will show you the calculator showing wrong result
HV
Works great with many options
My issue
I like the app. I paid for no ads. Now I get very annoying ads.
Well, not everything
I want to sum durations in mixed units of measure. Specifically, how long it takes to complete a list of tasks. I’ve timed each task and have results in minutes and seconds. The only time tasks you have are durations between two time points. This is quite a gap in your claim that your app calculates everything — there’s another app that adds times. Says to me there’s a need for this type of calculation. Perhaps add the word “nearly” — then it would be truthful. As it is, right now you’re over promising and under delivering.
five stars
Best thing I ever got
User
Got a fake screenshot that filled my screen with fake your phone is infected that had a click this link which leads to scammers trying to steal passwords for money etc
Good
Has adds- but amazing otherwise
Not a fan
Great calculator. Hate the ads and the model to turn them off temporarily. Just let me pay for it for NO ADS!
Dividing by zero isn’t infinity!
This is trying to teach my kids bad math.
Great Calc I ever had
This app is fantastic because it not only displays “0,” but also “00” and “000.” This feature is particularly useful when using a calculator as an accounting tool in a country with high inflation rates. Thank you.
有广告
充钱解锁无广告
Great design, but missing standard scientific buttons
While I like the overall design of the calculator, it seems to be missing 3, of what seem to be standard, scientific calculator buttons, the cubed root and the custom root function button, as well as a 1/x button. I find it odd for such a capable and stylish calculator app (I hate Apple’s bland calculator design) to not include them when most other apps do.
Ads
Was great at the beginning. I bought it so shouldn’t be any ads. Even so they use to stay in a top ribbon but now they are intrusive and can make it unusable unless your in airplane mode.
how i lick onecalc
it was just like that you had been doing something different since
Excellent app! Many handy extras!
Does everything one would need/expect from a regular calculator + many other calculation tools to use for work or just play around with…Excellent app that I would highly recommend!
Advertises Scams
Do not download. It uses ads that direct scam websites.
Ad problems
The see a add not get any for a week doesn’t work
Paid for upgrade but not working
I paid for the app to remove the ads, but the only way to access the paid version of the app is to open it, wait for the ad to finish, go to the settings, click the button that says Buy-upgrade to ad-free version, which opens it in the App Store, then shows me the option to open the app. When I open that it opens a new window, so I now have two different versions in separate windows from the same app on the App Store. It’s annoying and frustrating to pay for something that doesn’t work.
Ads!
There should never be ads for a calculator app!!
SO SO SO GOOD
IT HELPS WITH MY WORK!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Error after hitting = on simple addition of 36 payments. Waste of time. plus it’s not free
Wack
Paid for $3.99 upgrade no ads
Easy to use. Got this for the history feature. But still showed me ads when I upgraded to no ads and paid for the upgrade w no ads. So one star reduction.
Paid for full version - play video block pops up
In general a good app except for the fact that a “ play video “ block pops up , when I have paid for the add free version. I have the orange/yellow block in the top right hand side of the app but still the pop up persists. Its extremely irritating.
Please update
Can’t tilt app. Bring this feature in so we can fit in more decimals points. Thanks
Really helpful
I am a student at Hillside Elementary school eagle point Oregon. Fifth grade Mr. Carpenter’s class is hard math homework. This app really helped me and you can’t even watch ads which are actually some of them are really fun to do like put like puzzles and when you watch the ads to get seven days of free day ads, which is really really easy to do.❤️❤️❤️➖✖️➕➗🟰 so fun.!!!
⭐️ one star
Does not work on my iPad
Good calculator
Good calculator with a surprise ad
Ads come with an issue
It’s an ad-supported free app. That’s not a problem. Problem is that these ads pop up randomly. Once you close the ad, whatever you stored in memory (M+ and M-) is erased. If you were trying to do a complicated calculation where you have to use the memory function, there’s a risk of losing all your work randomly. Apart from this, the app works well for all calculator functions, basic and scientific. Only feature I’d love to see in there is a way to retrace the steps to do any corrections as needed.
Calculator
Should be with no ads
Best thing 🙂🙂🙂🙂🙂🙂🙂🙂🙂🙂🤯🤯
I’m 7yrs old and I still love trying to learn algebra because I have borrowed a dictionary from my grandpa and I know what “e”is; 2.71828*. *Perhaps a two?????????????????????????
Not user friendly
No idea how to make this work
Calculator
There is always a double trick trick sound coming at an interval of 2seconds. It is sounds like someone is taking a photo of you while using the calculator. Please if your app is recording something in the back it is difficult while using the app and the sound is very irritating. Rectify it please. Was thinking of purchasing the same but now it feels like deleting and getting another one of good quality.
Am really disappointed
You guys expect me to look at ad while am use calculator very poor service
Annoying.
The calculator and converter itself is OK but what isn’t is the weekly onscreen message that gives you the chance to play a video to avoid adverts for a week. In particular, it’s the fact that whenever I press ‘Play video’ the message vanishes without playing the video. And it’s not just every now and again, but every bloody week. If you’re going to have that option, ensure it responds to the option I click.
Perfect!
With husband being retired from construction he sometimes helps friends. I am retired from being a Tax Commissioner and owning a private accounting business. Many times I will receive a call for help. This app allows both my husband and I to complete tasks required to assist others. Perfect and the ads are minimal. Thank you!
Contained scam adds
I recently was using the app and a pop-up “your infected” notice popped up. This was within the app like an add except it was a one of the scam notices. Be very careful.. I am deleting the app.
I could have given 5 stars, but this is missing..
1) While doing mathematical calculations, before applying “=“ (equal to) button, answer should be displayed in one corner. 2) In already calculated and saved answer’s, selective removal or selective clear option should also be there instead of clear all option.
Keyboard input
I’m not sure what’s going on, but something like 3/4 calculator apps for the iPad don’t allow numerical input from the keyboard. I want to give no stars but I delete immediately and so didn’t give it a fair shake otherwise. But still? I’d love to use my keyboard.
All in one
Paid for this good app but still have adverts popping up,
Big fonts
He should use easy to read thanks.
Order of operations
8/2(2+2) = 1 It gives me 16 for an answer. The order of operations tells me parentheses first, then multiplication, then division. It should give me an answer of 1. It gives me the wrong answer. I’ve read the developer’s reply and found their reasoning flawed. I can’t see people paying for a subscription to this app. When they learn how to do math I may reinstall their app but for now I am looking for another.
Great Overall Calculator
Been using frequently for a year now. Great multi tool calculator. It’s got different conversion calculators for anything you need. Love the calculator can go from simple to scientific easily. The favorites is helpful for the tools you use most. The one thing I’d like to see is for the conversions to have more than 2 slots, I’d like to be able to type in one unit and have it show multiple conversions of my choice. I think this is a simple add and delete put to the user.
Nice for learning.
This has nearly NO ads. I do recommend.
History option
Could have added the history option so that to review the previous calculations
OneCalc
OneCalc is the best app ever. :D
Loud unskippable video ads
Garbage
Developer is GOD for me
Yes I am worshipping him
Compound interest function not working
Only down loaded for 1 function and it doesn’t work
Get rid of adds :(
Great calculator, but deleted it after using it twice due to the adds.
OneCalc: All-in-one Calculator FAQ
- Is OneCalc: All-in-one Calculator free?
- Yes. The app is free, in all 175 countries it sells in, and it sells nothing inside it.
- Does OneCalc: All-in-one Calculator have a free trial?
- No. None of its offers (US) come with a free trial.
- What are the best alternatives to OneCalc: All-in-one Calculator?
- ClevCalc - Calculator (4.7 from 229,701 reviews, premium from $2.99), Fraction Calculator Plus #1 (4.8 from 37,180 reviews, premium from $1.39) and Conversion Calculator Plus (4.7 from 25,986 reviews, premium from $9.99).
OneCalc: All-in-one Calculator download
Last updated 1 month ago.
OneCalc: All-in-one Calculator sells in 175 countries. It was released 8 years and 7 months ago, on 21 Feb 2018. It holds a 4.6 rating from 17,719 reviews.
Supports 10 languages: English, French, German, Italian, Japanese, Korean, Portuguese, Russian, Chinese, Spanish.
How much does OneCalc: All-in-one Calculator make?
Third-party estimates for the last 30 days, worldwide — not the store's own figures, which Apple publishes for nobody.