Calculator HD++ vs Calculator⁻
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator HD++
This application offers a high-precision calculation engine with a user-friendly interface. It allows for real-time result display as formulas are typed, supports multiple undo actions, and enables easy switching between workspaces. Users can also access persistent history, print calculations via AirPrint, and share history via email.
- High precision calculation engine
- Results displayed while typing
- Multiple undo functionality
- Workspace switching
- Persistent history
- AirPrint compatibility
- Email history sharing
Read full descriptionHide full description
- It is simple, easy to use and well designed - High precision engine - Result is displayed while typing the formula - Multiple undo - Switch between workspaces ! - Persistent history - Specialized keypad for iPhone and iPad - Supports bluetooth keyboard - Right or left-handed mode - Print easily with AirPrint - Share history by e-mail - it is FREE !
Calculator⁻
A straightforward calculator app designed for simplicity, offering basic arithmetic operations and percentage calculations. It allows users to record and recall past results, customize colors, and enable touch sounds for a personalized experience.
- Basic arithmetic operations
- Percentage calculations
- Record and recall results
- Customizable colors
- Touch sound option
Read full descriptionHide full description
It is a simple and easy calculator. It is a simple calculator with no complex functions at all. Features: Addition, subtraction, multiplication, division, percent operation Recording and recalling calculation results The numbers, operators, parentheses, results Custom colors Use touch sound Very useful for school children
Screenshots
Verdict
Calculator HD++ and Calculator⁻ both sit at 4.4 stars, but that hides the real split: 82% of Calculator HD++'s written reviews are positive against 52% of Calculator⁻'s. Calculator HD++ also leads on iOS requirement (10.0 vs 13.0). Calculator⁻'s advantage is ratings volume (3.6K vs 277). On price, rating, update cadence and ads 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. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.4 for Calculator HD++ against 4.4 for Calculator⁻. That said, the two scores are not equally well evidenced: Calculator⁻ has 3.6K ratings behind it against 277, so its average is the more settled of the two. Written reviews are what separate them: 82% of Calculator HD++'s written reviews are positive against 52% of Calculator⁻'s.
Calculator HD++ ships an update monthly, Calculator⁻ every 2 months. The most recent releases landed on September 25, 2026 and September 27, 2026 respectively.
| Parameter | Calculator HD++ | Calculator⁻ |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (277 ratings) | 4.4 (3.6K ratings) |
| Positive reviews | 81.6% of reviews — better | 52.0% of reviews |
| Number of ratings | 277 | 3.6K — better |
| Update frequency | Monthly — better | Every 2 months |
| Ads | Yes | Yes |
| In-app purchases | No | No |
| Monetization | Ad-supported | Ad-supported |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, iPod |
| Requires iOS | 10.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 35 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | smalltech sarl | UniCom Technology |
Customer experience
Calculator HD++
Calculator⁻
User reviews
Calculator HD++
From 277 App Store ratingsWhat we love
- 👍 Easy to use
- 💡 Detailed calculation history
- 🚀 Responsive and fast
- 👍 Helpful haptic feedback
- 👍 Intuitive interface
Room to improve
- 🐛 Settings have missing parameters
- 🐛 Previous calculations won't go away
- 💸 Annoying ads
- 🔍 Difficult to clear history
Calculator⁻
From 3.6K App Store ratingsWhat we love
- 👍 Easy to use
- 🚀 Efficient calculations
- 💡 Retro design
- 👍 Simple and straightforward
Room to improve
- 🐛 Decimal point issues
- 🐛 Incorrect calculations
- 🐛 Broken buttons
- 🔍 Confusing button layout
Bugs and requests
Calculator HD++
Reported bugs
2 issues- Crashes after recent update
- Incompatibility with Bluetooth keyboards
Requested features
3 requests- Option to remove ads
- Ability to switch to hexadecimal mode
- Larger buttons for easier use
Calculator⁻
Reported bugs
3 issues- Decimal point problem: .5 becomes 5
- Button that should be 7 shows as 9 and gives 9 when used
- Percentage button does not work correctly
Requested features
3 requests- Backspace button
- Percentage button that works properly
- Arrange buttons in standard calculator layout
In-app purchases
Calculator HD++
No in-app purchases
Calculator⁻
No in-app purchases
Questions
Is Calculator HD++ free?
Is Calculator⁻ free?
Which has better reviews, Calculator HD++ or Calculator⁻?
Do Calculator HD++ or Calculator⁻ have ads?
Which is updated more often, Calculator HD++ or Calculator⁻?
Other comparisons
