Calculator Plus #1 vs Corridor Safety
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Calculator Plus #1
A straightforward calculator app designed for everyday math, school, budgeting, and shopping. It offers essential functions, a clear interface with large buttons, and a history log for reviewing past calculations. Advanced features include memory functions, percentage calculations, and multi-window support for efficient workflow.
- Basic arithmetic operations
- Calculation history
- Memory function
- Percentage calculations
- Large buttons and display
- Customizable themes
- Multi-window mode
Read full descriptionHide full description
All-in-one basic calculator app for iPhone and iPad. Calculator Plus combines a basic calculator and a scientific one, percentage and tax calculator, financial and date calculator, currency and unit converter in one easy-to-use app. Stop switching between multiple calculator apps. Calculate faster, stay organized, and get accurate results with Calculator Plus. * Looking for a basic calculator with history and memory? * Calculator Plus automatically saves calculations so you can review results, continue calculations later, compare numbers, track expenses, and avoid repeating work. * Need a scientific calculator for school, engineering, or advanced math?* Use logarithms, trigonometric functions, exponents, algebra, scientific formulas, parentheses, and multi-step equations in one powerful calculator. * Need a percentage calculator while shopping? * Whether you’re asking “How much is 20% off?” or “What tip should I leave?”, Calculator Plus delivers accurate answers. Quickly calculate discounts, sales tax, tips, markups, profit margins, percentage increases, and percentage decreases. * Looking for a budgeting and finance calculator? * Track expenses, calculate bills, compare prices, plan budgets, and organize calculations with notes and history. * Need a currency converter and calculator in one app? * Convert currencies and measurement units while performing calculations - ideal for travel, shopping, business, and everyday use. * “How many days until my trip?” * Need a date calculator? Count days, calculate age, track deadlines, plan vacations, and manage important events. * Calculator Widget * Add the widget to your home screen for instant access. * Notes and Saved Calculations * Attach notes to saved calculations to organize expenses, transactions, tax records, budget plans, and currency conversions. * Perfect for: * — Everyday calculations — Scientific calculations and algebra for students — Shopping discounts and percentages — Budgeting, bills, and expenses — Tax and financial calculations — Currency and unit conversion — School homework and study — Multi-step equations with history — Date, age, and days calculations * Why Do Users Choose Calculator Plus? * Many calculator apps focus on only one task. Calculator Plus combines a scientific calculator, financial calculator, percentage calculator, tax calculator, currency converter, unit converter, date calculator, notes, history, widget, and multi-window support in one app. * Who Is Calculator Plus Designed For? * — Students and schoolchildren — Engineers and technical professionals — Business owners and freelancers — Finance professionals — Travellers and shoppers — Families managing household budgets Whether you need a calculator for budgeting, taxes, shopping, school, business, travel, engineering, or everyday math, Calculator Plus gives you all the tools you need in one app.
Corridor Safety
This safety platform provides real-time alerts and personalized guidance during emergencies. It helps users understand unfolding situations, navigate to safe zones, and report incidents to security teams. The goal is to minimize danger and impact by enabling faster, informed decisions.
- Real-time emergency alerts
- Personalized evacuation guidance
- Location-based notifications
- Incident reporting
- Communication with security teams
Read full descriptionHide full description
Introducing Corridor, a next-generation safety platform designed to help protect you and everyone around you when every second matters. Corridor keeps you informed throughout an emergency with real-time alerts and personalized guidance, helping you navigate safely to designated safe zones. Our Mission: Help you understand what’s happening, where the danger is, and how to respond safely when an emergency occurs. Our Solution: Corridor delivers real-time alerts, location-based notifications, and personalized evacuation guidance as situations evolve. Report incidents as they happen, share critical information with security teams, and communicate directly with officers on duty. Our Objective: Reduce exposure to danger and minimize the physical and psychological impact of emergencies by helping you make faster, safer, and more informed decisions.
Screenshots
Verdict
The clearest difference is in-app purchases: Corridor Safety at none against Calculator Plus #1's 7. Corridor Safety also leads on ads (none vs shown) and update cadence (weekly vs every 5 weeks). Calculator Plus #1's advantage is ratings volume (5.1K vs 1) and iOS requirement (15 vs 18.0). On price, rating and device support 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 #1 sells 7 in-app purchases, starting at $0.99 per month. Corridor Safety asks for nothing beyond the download.
Corridor Safety holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Calculator Plus #1 has 5.1K ratings behind it against 1, so its average is the more settled of the two.
Calculator Plus #1 ships an update every 5 weeks, Corridor Safety weekly. The most recent releases landed on November 1, 2026 and October 13, 2026 respectively.
| Parameter | Calculator Plus #1 | Corridor Safety |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (5.1K ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 88.5% of reviews | — |
| Number of ratings | 5.1K — better | 1 |
| Update frequency | Every 5 weeks | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15 — better | 18.0 |
| Further details — not scored | ||
| Size | 157 MB | 92 MB |
| Age rating | 4+ | 4+ |
| Developer | DigitAlchemy LLC | Aqsacom |
Customer experience
Calculator Plus #1
Corridor Safety
Bugs and requests
Calculator Plus #1
Reported bugs
2 issues- App crashes or doesn't open
- Ads still show up even after paying to remove them
Requested features
3 requests- Add brackets/parentheses for arithmetic operations
- Improve arithmetic operator priority
- Add more algebraic and trigonometric functions
Corridor Safety
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Calculator Plus #1
- Calculator with History7 Days trial$0.991 Month
- Calculator with History7 Days trial$1.491 Month
- Simple Calculator - No Ads7 Days trial$6.291 Year
Show 1 moreShow fewer
- Simple Calculator - No Ads7 Days trial$8.991 Year
- Remove ads$3.99
- Multiple Basic Calculations$8.99
- Multiple Basic Calculations$12.99
Corridor Safety
No in-app purchases
Questions
Is Calculator Plus #1 free?
Is Corridor Safety free?
Which has better reviews, Calculator Plus #1 or Corridor Safety?
Do Calculator Plus #1 or Corridor Safety have ads?
Which is updated more often, Calculator Plus #1 or Corridor Safety?
Other comparisons















