calculator DUO vs Super Basic Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
calculator DUO
This utility app offers a modern calculator with a visual history feature, eliminating the need to memorize previous calculations. It also includes a comprehensive unit converter and a tip calculator that bases tips on pre-tax amounts.
- Visual history calculator (RESULT SHELF™)
- Unit converter
- Tip calculator (pre-tax)
- Distraction-free design
- Precise and efficient
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A scientific calculator with history that fits the way you hold your iPhone. Save an answer, use it again in a tap, and keep everyday math moving on iPhone and iPad. WITHIN THUMB REACH Move and resize the left- or right-hand keypad to suit your grip. KEEP THE ANSWERS YOU NEED Save useful results on a visual shelf. Tap to reuse them, recall your last answer, or search your calculation history and mark favorites. CORRECT INPUT WITH CONFIDENCE Swipe to delete a digit or function. The deleted content stays visible until your next input; tap the return button to undo the deletion. FROM EVERYDAY TO SCIENTIFIC Use arithmetic, percentages, powers, roots, logarithms and trigonometric functions. Long-press a result for a large display, with adjustable text, color, font and size. MAKE IT YOURS Five themes, optional digit grouping and an interface in 50 languages. No account is required. Expressions, saved results and calculation history are stored on your device. The free app may show banner ads. Remove Ads is an optional one-time purchase, with purchase restoration through the same Apple Account.
Super Basic Calculator
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This is a basic calculator for the iPhone. There are no ads or subscriptions. It has a running total, haptic feedback, a large line history, is easy to use, and tested for accuracy.
Screenshots
Verdict
The clearest difference is ads: Super Basic Calculator at none against calculator DUO's shown. calculator DUO's advantage is update cadence (every 2 weeks vs monthly). On price, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. calculator DUO sells 1 one-off in-app purchase and Super Basic Calculator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
calculator DUO ships an update every 2 weeks, Super Basic Calculator monthly. The most recent releases landed on September 23, 2026 and September 20, 2026 respectively.
| Parameter | calculator DUO | Super Basic Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 weeks — better | Monthly |
| Ads | Yes | No — better |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 16.5 — better | 17.6 |
| Further details — not scored | ||
| Size | 9 MB | 8 MB |
| Age rating | 4+ | 4+ |
| Developer | Wenbin lei | David Koontz |
In-app purchases
calculator DUO
- Remove Ads$7.99
Super Basic Calculator
- Tip$0.99
Questions
Is calculator DUO free?
Is Super Basic Calculator free?
Do calculator DUO or Super Basic Calculator have ads?
Which is updated more often, calculator DUO or Super Basic Calculator?
Other comparisons
