Comparison

Calculator₊ vs Hay App

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

Head to head
About

Calculator₊

This app offers a comprehensive suite of calculation tools, including basic, scientific, and unit conversions. It features an AI-powered math solver that can solve problems from photos and provides a dedicated space for math notes. Accessibility features ensure ease of use for all users.

Highlights
  • Basic and scientific calculations
  • Unit and currency converter
  • AI-powered math solver with photo recognition
  • Math notes with instant solutions
  • Calculation history log
  • Accessibility features (Dynamic Text Size, VoiceOver, High-Contrast Mode)
Features
Read full description

America's #1 Calculator App! Download Calculator₊ Now - Your All-in-One Math Solution! We're excited to announce the biggest update to Calculator₊ in 10 years! With over 200 million downloads and a whopping 3 million+ 5-star ratings, Calculator₊ is the trusted choice of millions worldwide. And now, it's even better! More Than Just Your Average Calculator! • Standard Calculator: Breeze through basic arithmetic operations like addition, subtraction, multiplication, and division. • Scientific Calculator: Tackle complex calculations with ease, including trigonometric, logarithmic, and exponential functions. • Calculation History: Keep track of your past calculations with a detailed history log. • Unit Converter: Effortlessly convert units like inches to centimeters and much more, making it a handy tool for everyday use. • Percentage Calculator: Easily calculate percentages, increases, and decreases with pre-designed input fields that do the work for you. • Currency Converter: Convert currencies in real-time, including Bitcoin, with the latest exchange rates. • Fraction Calculator: Work seamlessly with fractions – perfect for students and professionals alike. • Ad-Free Experience: Say goodbye to annoying full-screen ads and focus on your calculations. Be Amazed by Our New AI-Powered Math Solver! • AI Math Solutions: Instantly solve math equations, quizzes, and word problems with our advanced AI. Use the Photo Solver to snap a picture of any problem, and Calculator₊ will work its magic. • Math Notes: A dedicated note-taking tool for all your math needs. Jot down equations, diagrams, and notes in a space designed for mathematical thinking. • Instant Math: In Math Notes mode, simply write an equation, add an "=", and Calculator₊ will generate the solution in real-time. Built for Everyone, Now Even More Accessible! Calculator₊ is designed to work effortlessly for all users, no matter how you use your iPhone, and includes these additional accessibility features: • Dynamic Text Size: Scale the calculator interface to the text size that works best for you, without losing layout clarity. • VoiceOver Support: Navigate & Calculate using VoiceOver, fully compatible with iOS accessibility settings. • High-Contrast Mode: A bold, high-contrast display that makes every button and result instantly readable in any lighting condition. • Dark and Light Mode: Calculator₊ automatically adjusts to your preferred mode. Why Choose Calculator₊? • Proven Track Record: Over a decade of providing fast and reliable calculations. • Loved by Millions: Join the 200+ million users who rely on Calculator₊, with an average rating of 4.7 stars from 3.5 million reviews. • Versatile & Powerful: Handles everything from basic sums to advanced scientific calculations. Perfect for school, work, or home. Celebrate with a Special Gift! To celebrate the release of this massive update, we're offering a 1-MONTH FREE TRIAL of our premium features, including: • Ad-Free Experience: No more pesky ads. • Unlimited AI Math Solving: Solve as many equations and problems as you need. • Unlimited Fraction Calculations: Ideal for students and professionals alike. • Unlimited Currency Conversions: Including real-time Bitcoin conversions. • Premium Customer Support: Get priority assistance from our expert support team. If you have any suggestions or questions, our support team is ready to help. Simply email us at support@impalastudios.com. Terms & Conditions: https://impalastudios.com/terms Privacy Policy: https://impalastudios.com/privacy

About

Hay App

Control your automatic hay preservative applicator directly from your iPad. Access operator manuals, repair parts, and preservative information. Monitor baling speed, moisture content, and preservative usage in real-time.

Highlights
  • iPad control for hay preservative applicators
  • Real-time moisture content display
  • Baling speed and tonnage monitoring
  • Preservative volume and application rate tracking
  • Access to operator manuals and repair parts
  • Bluetooth connectivity
Features
Read full description

The Hay App from Harvest Tec is a convenient tool to control your Automatic Hay Preservative Applicator with an iPad on your John Deere, New Holland, Case IH, AGCO, or other brand of hay baler, as well as immediate access to operators manuals, repair parts, and hay preservative info at the touch of a finger. The Hay App gives you all the same features as the prior generation Touch Screen Display through a Bluetooth connection on your iPad or iPad Mini. Making the highest quality hay has never been easier! Displays the following information while you bale: • Moisture content • Speed of baling (tonnage) • Volume of preservative used per bale • Target application rate and actual application rate • Total tons baled Requires Bluetooth antenna. See your local dealer for details.

Screenshots

Calculator₊4 screens

Verdict

The call

The clearest difference is rating: Calculator₊ at 4.7 against Hay App's 3.7. Calculator₊ also leads on ratings volume (1.7M vs 3) and update cadence (every 3 weeks vs every 3 months). Hay App's advantage is in-app purchases (none vs 10) and ads (none vs shown). On price 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₊ sells 10 in-app purchases, starting at $0.99 per month. Hay App asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Calculator₊ holds the better App Store score, 4.7 against 3.7. That said, the two scores are not equally well evidenced: Calculator₊ has 1.7M ratings behind it against 3, so its average is the more settled of the two.

UpkeepUpdate frequency

Calculator₊ ships an update every 3 weeks, Hay App every 3 months. The most recent releases landed on November 7, 2026 and November 2, 2026 respectively.

Scorecard9 real differences · 2 level
Calculator₊ versus Hay App: the parameters behind the verdict, then further details
ParameterCalculator₊Hay App
PriceFreeFree
Rating4.7 (1.7M ratings) — better3.7 (3 ratings)
Positive reviews63.1% of reviews—
Number of ratings1.7M — better3
Update frequencyEvery 3 weeks — betterEvery 3 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#104 — better—
DevicesiPhone, iPad, iPod, Apple Watch, Vision Pro — betteriPad
Requires iOS15.012.4 — better
Further details — not scored
Size247 MB69 MB
Age rating4+4+
DeveloperImpala StudiosHarvest Tec, Inc

Customer experience

Calculator₊

All ratings1,736,431 ratings
Positive92.2%
Neutral3.5%
Negative4.3%
Written reviews3,118 reviews
Positive63.1%
Neutral6.2%
Negative30.8%

Hay App

All ratings4 ratings
Positive50.0%
Neutral25.0%
Negative25.0%

Bugs and requests

Calculator₊

Reported bugs

2 issues
  • Incorrect calculation results for certain functions
  • Inability to delete last entered digit without clearing entire calculation

Requested features

3 requests
  • Ability to delete individual calculation history entries
  • More free advanced calculator features (fractions, currency, etc.)
  • Improved ad placement that doesn't interfere with usage

Hay App

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Calculator₊

Subscriptions10
  • Premium Member Special Offer7 Days trial$0.991 Month
  • Monthly Premium Member3 Days trial$0.991 Month
  • 1 Month Premium Access7 Days trial$1.491 Month
Show 7 more
  • Half-Yearly Premium Member3 Days trial$3.996 Months
  • Calculate Faster, AI, & No Ads3 Days trial$4.997 Days
  • 1 Year Ad-Free3 Days trial$5.991 Year
  • Calculate Faster, AI, & No Ads3 Days trial$5.997 Days
  • 1 Month Premium Trial1 Month trial$5.997 Days
  • Math Solver/Full Access/No Ads$5.997 Days
  • 6 Months Premium Access7 Days trial$8.996 Months
None

Hay App

No in-app purchases

Questions

Is Calculator₊ free?
Calculator₊ is free to download, with in-app purchases available.
Is Hay App free?
Hay App is free to download, with no in-app purchases.
Which has better reviews, Calculator₊ or Hay App?
Calculator₊ is rated higher. Calculator₊ averages 4.7 out of 5 from 1.7M ratings, while Hay App averages 3.7 from 3 ratings.
Do Calculator₊ or Hay App have ads?
Calculator₊ shows ads; Hay App does not.
Which is updated more often, Calculator₊ or Hay App?
Calculator₊ ships an update every 3 weeks, and Hay App every 3 months. Most recently, Calculator₊ was updated on November 7, 2026 and Hay App on November 2, 2026.

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