CalcBoard / Calculators Without Ads
A Calculator App With No Ads. None.
No banners, no interstitials, no rewarded video to unlock a square root. Not in the free version, not later, not ever.
Download CalcBoard FreeWhy the calculator category is like this
Calculators are opened many times a day for a few seconds each. That is an unusually good shape for advertising — lots of impressions, no expectation of depth — and an unusually bad experience, because an interstitial between you and a total costs more, in attention, than the app saves.
The category has settled into four business models, and only two of them are honest about what they are:
| Model | What you actually get |
|---|---|
| Free with ads | Banners under the keypad, interstitials on launch, and a data pipeline you did not read about. |
| Free trial, then subscription | Ad-free for a week, then $3–$8 a month, forever, for arithmetic. |
| Paid up front | No ads, no tracking — but you pay before you know if you like it. |
| Free tier, one-time unlock | What CalcBoard does: a genuinely usable free app, no ads, and a single $2.99 purchase if you want the rest. |
How to check before you install
- Read the In-App Purchases list on the store page. A "Remove Ads" entry means there are ads. Entries with "/month" or "/year" mean a subscription.
- Look for "ad-free" as a feature. If removing ads is something the app sells, ads are the default.
- Check the App Privacy label. "Data Used to Track You" means an advertising identifier is being collected, even if you have not seen a banner yet.
- Read the one-star reviews, sorted by most recent. Apps that added ads in an update get told about it there first.
What CalcBoard does instead
No ad SDK is compiled into the app — there is nothing to enable later. There is also no analytics SDK and no crash-reporting SDK, so there is no advertising identifier to collect, and the App Store privacy label reads Data Not Collected.
The free version is a real calculator: two independent panels, basic mode, named variables, length/mass/temperature conversion, and your last 10 calculations. No countdown, no watermark, no nag screen on launch. The one-time $2.99 Premium unlock adds scientific and programmer modes, panels 3–8, the shared value tray, all 79 units, full history with search and CSV export, and the themes.
Its only network connection is an anonymous configuration fetch at launch, plus Apple and RevenueCat handling a purchase if you make one. The privacy policy spells out exactly that.
How CalcBoard compares to the other ad-free options
Ad-free is the entry ticket, not the differentiator. A handful of paid apps clear that bar too — PCalc (paid, one-time), and Apple's built-in Calculator — so the real question is what you get once ads are off the table.
What none of them do is run several calculators on one screen with values passing between them. CalcBoard was also, as of September 2026, the only one of the three you could use in full for free before deciding whether to pay, and at $2.99 its full unlock is under a third of PCalc's price.
Frequently Asked Questions
Does CalcBoard have ads?
Is it a subscription?
What is free without paying anything?
How do I know an app really has no ads?
Does CalcBoard collect any data?
No ads. No subscription. No tracking.
Free to download, genuinely usable free, $2.99 once if you want everything.
Download Free on App Store