Comparison

Calculator Plus #1 vs EV Check In

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • Basic arithmetic operations
  • Calculation history
  • Memory function
  • Percentage calculations
  • Large buttons and display
  • Customizable themes
  • Multi-window mode
Features
Read 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.

About

EV Check In

This free app provides real-time information on EV charger availability, powered by user check-ins. Avoid wasted trips by seeing if a charger is in use before you arrive. Users can contribute by scanning QR codes and updating charger status.

Highlights
  • Real-time charger status
  • Community-powered updates
  • QR code scanner
  • User check-ins
  • Contribute to community data
Features
Read full description

Free EV chargers are always busy. Stop guessing. EV Check In is a free, community-powered app that shows you in real time if a charger is in use before you get there. How it works • Scan the QR code on the charger • Check in when you start charging • See live status from other drivers • Let others unplug when you're finished (toggle switch) No QR code on your charger? Print one in seconds and help your local EV community stay updated.

Screenshots

Calculator Plus #14 screens
EV Check In4 screens

Verdict

The call

The clearest difference is in-app purchases: EV Check In at none against Calculator Plus #1's 7. EV Check In also leads on ads (none vs shown) and update cadence (every 2 days vs every 5 weeks). Calculator Plus #1's advantage is ratings volume (5.1K vs 1). On price, rating, 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Calculator Plus #1 sells 7 in-app purchases, starting at $0.99 per month. EV Check In asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

EV Check In 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.

UpkeepUpdate frequency

Calculator Plus #1 ships an update every 5 weeks, EV Check In every 2 days. The most recent releases landed on October 29, 2026 and October 12, 2026 respectively.

Scorecard5 real differences · 5 level
Calculator Plus #1 versus EV Check In: the parameters behind the verdict, then further details
ParameterCalculator Plus #1EV Check In
PriceFreeFree
Rating4.8 (5.1K ratings)5.0 (1 ratings) — better
Positive reviews88.5% of reviews—
Number of ratings5.1K — better1
Update frequencyEvery 5 weeksEvery 2 days — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15 — better15.1
Further details — not scored
Size157 MB32 MB
Age rating4+4+
DeveloperDigitAlchemy LLCCrewSwap app LLC

Customer experience

Calculator Plus #1

All ratings5,067 ratings
Positive97.2%
Neutral1.5%
Negative1.3%
Written reviews1,305 reviews
Positive88.5%
Neutral3.0%
Negative8.5%

EV Check In

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

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

EV Check In

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

Calculator Plus #1

Subscriptions4
  • 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 more
  • Simple Calculator - No Ads7 Days trial$8.991 Year
One-time3
  • Remove ads$3.99
  • Multiple Basic Calculations$8.99
  • Multiple Basic Calculations$12.99
None

EV Check In

No in-app purchases

Questions

Is Calculator Plus #1 free?
Calculator Plus #1 is free to download, with in-app purchases available.
Is EV Check In free?
EV Check In is free to download, with no in-app purchases.
Which has better reviews, Calculator Plus #1 or EV Check In?
EV Check In is rated higher. Calculator Plus #1 averages 4.8 out of 5 from 5.1K ratings, while EV Check In averages 5.0 from 1 ratings.
Do Calculator Plus #1 or EV Check In have ads?
Calculator Plus #1 shows ads; EV Check In does not.
Which is updated more often, Calculator Plus #1 or EV Check In?
Calculator Plus #1 ships an update every 5 weeks, and EV Check In every 2 days. Most recently, Calculator Plus #1 was updated on October 29, 2026 and EV Check In on October 12, 2026.

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