Comparison

Calculator Plus #1 vs Solves

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

Solves

A powerful and versatile calculator for all your Apple devices. Edit complex expressions, sync history across devices, and enjoy a clean, ad-free experience. Unlock advanced features like unit conversion and fraction support with an optional upgrade.

Highlights
  • Edit expressions without limitations
  • Instant results
  • Sync calculation history across devices
  • Unit conversion (currencies, physical units)
  • Fraction support
  • Customizable themes
Features
Read full description

Solves is a well-made calculator app for your iPhone, iPad, Mac, and Apple Watch. It allows you to edit expressions without limitations and get instant results. It keeps your calculation history in sync on all devices and lets you to easily interact with it. All this for free and without ads! By purchasing Solves+ you also get: • Unit Conversions: currencies (with crypto, metals & energy), physical units, and your own! • History Tools: comment, bookmark, export, auto clear, and more • Fractions • More Themes • Advanced Settings Hand-typed code. No generative AI was used during the development or by the app itself. Solves+ requires one payment only. You will own it forever on all devices.

Screenshots

Calculator Plus #14 screens
Solves4 screens

Verdict

The call

The clearest difference is ads: Solves at none against Calculator Plus #1's shown. Solves also leads on device support (5 vs 3). Calculator Plus #1's advantage is ratings volume (5.1K vs 382). 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

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 and Solves sells 6 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 4.8 for Calculator Plus #1 against 4.9 for Solves. That said, the two scores are not equally well evidenced: Calculator Plus #1 has 5.1K ratings behind it against 382, so its average is the more settled of the two. Written reviews are what separate them: 89% of Calculator Plus #1's written reviews are positive against 91% of Solves's.

UpkeepUpdate frequency

Calculator Plus #1 ships an update every 5 weeks, Solves every 3 weeks. The most recent releases landed on October 18, 2026 and October 15, 2026 respectively.

Scorecard3 real differences · 7 level
Calculator Plus #1 versus Solves: the parameters behind the verdict, then further details
ParameterCalculator Plus #1Solves
PriceFreeFree
Rating4.8 (5.1K ratings)4.9 (382 ratings) — better
Positive reviews88.5% of reviews90.6% of reviews — better
Number of ratings5.1K — better382
Update frequencyEvery 5 weeksEvery 3 weeks — better
AdsYesNo — better
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac, Apple Watch — better
Requires iOS1515
Further details — not scored
Size157 MB82 MB
Age rating4+4+
DeveloperDigitAlchemy LLCOleg Barinov

Customer experience

Calculator Plus #1

All ratings5,067 ratings
Positive97.2%
Neutral1.5%
Negative1.3%
Written reviews1,301 reviews
Positive88.5%
Neutral3.0%
Negative8.5%

Solves

All ratings382 ratings
Positive97.1%
Neutral1.0%
Negative1.8%
Written reviews480 reviews
Positive90.6%
Neutral3.8%
Negative5.6%

User reviews

Calculator Plus #1

From 5.1K App Store ratings

What we love

  • 🚀 Great calculator
  • 👍 Easy to use
  • 👍 Looks very nice
  • 👍 Reliable and dependable
  • 👍 Useful features like memory

Room to improve

  • 🐛 Ads disrupt calculations
  • 🐛 Too many ads
  • 🐛 Ads pop up in the middle of calculations

Solves

From 382 App Store ratings

What we love

  • 👍 Excellent calculator app
  • 🚀 Smooth and responsive
  • 🔒 No ads or data collection
  • 💡 Useful features like history, comments, and unit conversions
  • 👍 Clean and intuitive design

Room to improve

  • 🐛 Occasional crashes or bugs after updates
  • 🐛 Issues with certain mathematical operations
  • 🐛 Family sharing not working properly
  • 🐛 Lag or performance issues on some devices
  • 💡 Desire for more advanced features like fractions, base conversions

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

Solves

Reported bugs

4 issues
  • Crashes when pressing certain buttons
  • Issues with parsing complex expressions
  • Incorrect results for some calculations
  • Problems with history clearing or syncing

Requested features

6 requests
  • Add support for fractions and mixed numbers
  • Implement a widget for quick access
  • Allow resizing the app window on Mac
  • Provide more customization options
  • Add support for Apple Watch
Show 1 more
  • Improve unit conversion experience

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
6 purchases

Solves

One-time6
  • Tip Option #1$0.99
  • Tip Option #2$1.99
  • Tip Option #3$4.99
Show 3 more
  • Tip Option #4$9.99
  • Solves+$9.99
  • Tip Option #5$19.99

Questions

Is Calculator Plus #1 free?
Calculator Plus #1 is free to download, with in-app purchases available.
Is Solves free?
Solves is free to download, with in-app purchases available.
Which has better reviews, Calculator Plus #1 or Solves?
Solves is rated higher. Calculator Plus #1 averages 4.8 out of 5 from 5.1K ratings, while Solves averages 4.9 from 382 ratings.
Do Calculator Plus #1 or Solves have ads?
Calculator Plus #1 shows ads; Solves does not.
Which is updated more often, Calculator Plus #1 or Solves?
Calculator Plus #1 ships an update every 5 weeks, and Solves every 3 weeks. Most recently, Calculator Plus #1 was updated on October 18, 2026 and Solves on October 15, 2026.

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