Blue Calculator+ vs Calculator Plus Basic & PEMDAS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Blue Calculator+
A straightforward and lightweight calculator app offering essential functions like random number generation, exponents, roots, and logarithms. It also serves as a companion for Apple Watch users, providing convenient access to calculations on their wrist.
- Random number generator
- Exponentials and exponents
- Squares, cubes, and square roots
- Logarithmic functions
- Apple Watch companion app
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Blue Calculator+ is a basic calculator with functionality often desired in a fast, easy-to-use and lightweight app, as well as a companion app for Apple Watch owners. Features include: - Random number generator - Exponentials - Exponents - Squares, cubes, and squareroots - Logarithmic functions - and more
Calculator Plus Basic & PEMDAS
This app offers a customizable calculator experience with a clean interface and advanced features like PEMDAS mode and calculation history. Personalize its appearance with numerous themes and button styles to suit your preferences.
- PEMDAS order of operations mode
- Over 50 customizable color themes
- Full calculation history
- Adjustable decimal precision
- Copy and paste functionality
- Sales tax calculations
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Combining powerful calculations with fully customisable design — so your calculator looks and works just how you want it to! Built For Speed & Simplicity: Clean, simple, intuitive layout Instant, responsive calculations Large easy to read buttons and numbers Switch between standard and order of operations (PEMDAS) modes effortlessly Make It Yours: Over 50 color themes available, with more added regularly High-contrast colour themes for visually impaired users Favorite your top themes for quick switching Request your very own color theme Choose round or square buttons Smart Features That Matter: Full calculation history with US format date & timestamps - store up to a year of results Adjustable decimal precision Copy & paste from the display or calculation history Retro LCD or modern display Customisable haptic feedback intensity Sound effects on or off Optimized layouts for both iPhone and iPad Sales Tax calculations Currency conversions Speaking calculations Tips calculator Unit price calculator Discount percentage calculator Premium: Upgrade to Premium with a one-time purchase and: Unlock all Premium color themes and features forever on your iPhone and iPad No subscription Reasons to Love it: No clutter, no confusion — just an intuitive, great looking calculator Personalisation without limits
Screenshots
Verdict
The clearest difference is in-app purchases: Blue Calculator+ at none against Calculator Plus Basic & PEMDAS's 1. Blue Calculator+ also leads on ads (none vs shown) and device support (4 vs 2). Calculator Plus Basic & PEMDAS's advantage is ratings volume (5 vs 1). On price, rating, review sentiment and update cadence 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 Plus Basic & PEMDAS sells 1 one-off in-app purchase. Blue Calculator+ asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for Blue Calculator+ against 5.0 for Calculator Plus Basic & PEMDAS. That said, the two scores are not equally well evidenced: Calculator Plus Basic & PEMDAS has 5 ratings behind it against 1, so its average is the more settled of the two. Written reviews split almost evenly too, at 100% and 100% positive.
Blue Calculator+ ships an update every 10 days, Calculator Plus Basic & PEMDAS weekly. The most recent releases landed on October 10, 2026 and October 18, 2026 respectively.
| Parameter | Blue Calculator+ | Calculator Plus Basic & PEMDAS |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (5 ratings) |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| Number of ratings | 1 | 5 — better |
| Update frequency | Every 10 days | Weekly — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad |
| Requires iOS | 10.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 26 MB | 91 MB |
| Age rating | 4+ | 4+ |
| Developer | Bryan Stone | Paul Flowers |
Customer experience
Blue Calculator+
Calculator Plus Basic & PEMDAS
In-app purchases
Blue Calculator+
No in-app purchases
Calculator Plus Basic & PEMDAS
- More Beans Calculator$4.99
Questions
Is Blue Calculator+ free?
Is Calculator Plus Basic & PEMDAS free?
Which has better reviews, Blue Calculator+ or Calculator Plus Basic & PEMDAS?
Do Blue Calculator+ or Calculator Plus Basic & PEMDAS have ads?
Which is updated more often, Blue Calculator+ or Calculator Plus Basic & PEMDAS?
Other comparisons
