Calculator + vs OpenSpace Parking
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator +
This app offers a free basic and scientific calculator with an intuitive interface. It supports fractions, percentages, and advanced editing. Optional upgrades provide specialized calculators for fractions with units, polynomial and linear equation solving, graphing, and geometric shapes.
- Free basic and scientific calculator
- Intuitive interface with equation and result display
- Fraction and percent support
- Advanced editing capabilities
- Polynomial and linear equation solver
- Graphing calculator
- Unit conversion and geometric calculators
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Award winning calculator app for iPad and iPhone. Designed with simplicity, usability and beauty in mind! FEATURES: - Free basic calculator - Free scientific calculator - Elegant & Intuitive interface - Advanced editing by easily going back and forth - Displays both the equation & the result at the same time - Supports Fraction & Percent - Supports many scientific functions If you are looking for more advanced features you can upgrade to one or more of the following: - Fraction Calculator with feet, inches & cm support! - Solving for x with a polynomial Calculator for solving quadratic & cubic equations 2x³ - 4x² - 22x + 24 = 0 - Linear Equations Solver for solving system of linear equations 2x – y = 9 3x + 4y = –14 - Graphing Calculator to find the local min, max & intersection points y = 2x³ – 4x (x² + y²)³ = -27y²x² - Triangle Calculator - Cone Calculator - Arc Calculator - Circle Calculator - Base Converter ( HEX OCT BIN DEC ) - Multiple themes Enjoy the FREE Scientific calculator on your iPhone & iPad. If you like it, support us by upgrading or giving us a positive review. Thanks :) Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
OpenSpace Parking
Instantly check real-time parking space availability at various locations. View available spots, distances, and navigate directly using Google Maps. Smart color-coding helps you quickly identify parking lot occupancy levels.
- Real-time space availability
- Distance from current location
- Map view of locations
- Google Maps navigation integration
- Smart color-coding for occupancy
- Search by provider name
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TheOpenSpace Parking mobile app connects your mobile device instantly to the cloud so you can check real-time space availability by parking location. Navigation with ease On the app home screen, you'll find a list of all available parking spaces at your facilities. Your Home screen not only displays the number of available parking spaces in a location, but also the distance from your current location, and the location on the map. Need directions? Just tap Route to open the location on Google Maps. You can also search for the name of a provider from the homescreen. Homescreen Lists the number of available parking spaces in the parking location and the distance from your current location. Tap to view total spaces, available spaces, and the map view of the location. Tap Route to open the location on Google Maps and to obtain directions. You can edit the location name as required. Smart color coding We've madeit eveneasier to spot available parking spaces with our smart color-coding system. The Available Spaces totals display in Green, Yellow, or Red, with the percentage of availability per color code configurable by your provider. For example, green would typically indicate the parking location has plenty of space. Yellow typically would indicate the parking lot has significant occupancy, and Red, would mean that there are very few remaining spaces. Location full? Whenalocation is full or nearly full, the app reflects the current status, ensuring you never waste time searching for a spot that doesn't exist
Screenshots
Verdict
The clearest difference is review sentiment: Calculator + at 85% against OpenSpace Parking's 0%. Calculator + also leads on rating (4.6 vs 1.0) and update cadence (every 5 days vs every 3 months). OpenSpace Parking's advantage is in-app purchases (none vs 12) and ads (none vs shown). On price, 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 + sells 12 in-app purchases, starting at $4.99 per month. OpenSpace Parking asks for nothing beyond the download.
Calculator + holds the better App Store score, 4.6 against 1.0. That said, the two scores are not equally well evidenced: Calculator + has 10K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 85% of Calculator +'s written reviews are positive against 0% of OpenSpace Parking's.
Calculator + ships an update every 5 days, OpenSpace Parking every 3 months. The most recent releases landed on October 14, 2026 and October 1, 2026 respectively.
| Parameter | Calculator + | OpenSpace Parking |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (10K ratings) — better | 1.0 (1 ratings) |
| Positive reviews | 84.9% of reviews — better | 0.0% of reviews |
| Number of ratings | 10K — better | 1 |
| Update frequency | Every 5 days — better | Every 3 months |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.4 | 15.1 — better |
| Further details — not scored | ||
| Size | 49 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | xNeat.com | LogixITS |
Customer experience
Calculator +
OpenSpace Parking
Bugs and requests
Calculator +
Reported bugs
5 issues- Fraction calculator has TWO subtraction buttons and NO division button
- Decimals seem to be changed to fraction with no apparent way of changing it back
- Functionality is dropped by forcing you to the main menu every time you open it
- Currency converter broken
- Login screen freezes
Requested features
5 requests- Add mod function
- Add commas
- Add 1/x function
- Support for Retina Display
- Add number 4 with two lines
OpenSpace Parking
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Calculator +
- Scientific Calculator3 Days trial$4.991 Month
- Calculator7 Days trial$39.991 Year
- Linear Calculator$2.99
- Factoring Calculator$2.99
- Handwriting Calculator$2.99
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- Currency Converter$2.99
- Themes Pack$2.99
- Graphing Calculator$3.99
- Fraction Calculator$3.99
- Scientific Calculator$4.99
- Calculator Plus$4.99
- Calculator$16.99
OpenSpace Parking
No in-app purchases
Questions
Is Calculator + free?
Is OpenSpace Parking free?
Which has better reviews, Calculator + or OpenSpace Parking?
Do Calculator + or OpenSpace Parking have ads?
Which is updated more often, Calculator + or OpenSpace Parking?
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