Comparison

Calculator⁼ vs Programastat+

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 clean and intuitive interface for both basic arithmetic and advanced scientific calculations. It includes a history tape to review past computations and supports various mathematical operations, making it suitable for everyday use and complex problem-solving.

Highlights
  • Basic & Scientific Calculator
  • Live Currency Converter
  • History Tape
  • Equation Edit Function
  • Degrees or Radians Calculation
  • Memory Banks
Features
Read full description

Calculator is a clean, easy-to-use calculator app for everyday math and more. It handles basic calculations and scientific functions when you need them and keeps a history of your past results so you can quickly go back and check or reuse them. With its classic design, it feels familiar and straightforward—perfect for quick sums at work, school, or home. AVAILABLE FOR FREE • Basic & Scientific Calculator • Great Visibility; Big buttons for easy calculations • Live Currency Converter; get exchange rate prices • History Tape; Track all calculations, taxes, and expenses • Equation edit function • Calculate with Degrees or Radians • Memory Banks • Choose your Decimal Notation • Set the Number of Decimals • Available in 12 languages • Made for iPad & iPhone • Support Split View & Dark Mode BASIC AND SCIENTIFIC Rotate your device to access all scientific buttons. Or if you prefer calculating in portrait mode, simply swipe left. YOUR EXPERIENCE IS IMPORTANT TO US! As your experience is important to us, we’re happy with your feedback, questions, and suggestions. Please share any support as our team is always ready to help via support@impalastudios.com Mathematical Operations Addition, Subtraction, Division, Multiplication, Percentages, Square, Cubic Exponent, Nth Exponent, Square Root, Cubic Root, Nth Root, Engineering Exponent, Factorial, Power of Two, Power of Ten, Power of E, Natural Logarithm, Common Logarithm, Binary Logarithm, Sine, Cosine, Tangent, Arc Sine, Arc Cosine, Arc Tangent, Hyperbolic Sine, Hyperbolic Cosine, Hyperbolic Tangent, Hyperbolic ArcSine, Hyperbolic Arc Cosine, Hyperbolic ArcTangent, Multiplicative Inverse, Random Number Input LOVING CALCULATOR? Please show your support by rating us! Thank you. Calculator (C) 2011 Impala Studios Terms & Conditions: https://impalastudios.com/terms Privacy Policy: https://impalastudios.com/privacy

About

Programastat+

Easily program your central heating system remotely via your phone or tablet. Control 5 operating modes and set 6 timed temperature periods daily with repeating schedules. Requires a Timeguard TRTWiFi thermostat.

Highlights
  • Remote programming via 4G/WiFi
  • 5 operating modes (auto, off, on, frost, holiday)
  • 6 timed/temperature periods daily
  • Daily repeating schedules
  • Compatible with Timeguard TRTWiFi thermostat
Features
Read full description

Programastat+ can be used to provide convenient easy programming of your central heating Changes to heating programs can be made on your phone or tablet, from any location, using 4G or WiFi. There are 5 operating modes, auto, off, on, frost, and holiday. There are 6 timed / temperature periods each day, with daily repeats. For use with Timeguard TRTWiFi thermostat.

Screenshots

Calculator⁼4 screens
Programastat+4 screens

Verdict

The call

The clearest difference is review sentiment: Calculator⁼ at 36% against Programastat+'s 0%. Calculator⁼ also leads on update cadence (monthly vs every 19 months). Programastat+'s advantage is in-app purchases (none vs 8) and ads (none vs shown). On price 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Calculator⁼ sells 8 in-app purchases, starting at $0.49 per 7 days. Programastat+ asks for nothing beyond the download.

UpkeepUpdate frequency

Calculator⁼ ships an update monthly, Programastat+ every 19 months. The most recent releases landed on September 25, 2026 and June 1, 2026 respectively.

Scorecard6 real differences · 4 level
Calculator⁼ versus Programastat+: the parameters behind the verdict, then further details
ParameterCalculator⁼Programastat+
PriceFreeFree
Rating4.6 (358K ratings) — better—
Positive reviews36.1% of reviews — better0.0% of reviews
Number of ratings358K — better—
Update frequencyMonthly — betterEvery 19 months
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.011.0 — better
Further details — not scored
Size159 MB38 MB
Age rating4+4+
DeveloperImpala StudiosTIMEGUARD LTD

Customer experience

Calculator⁼

All ratings358,262 ratings
Positive91.4%
Neutral3.7%
Negative4.9%
Written reviews796 reviews
Positive36.1%
Neutral6.8%
Negative57.2%

Programastat+

Written reviews2 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

Calculator⁼

Reported bugs

3 issues
  • History not always showing all entries
  • Ads covering up parts of the screen
  • Inability to close full-screen ads

Requested features

4 requests
  • Add fraction button
  • Option to clear calculation history
  • Ability to copy/paste results
  • Customizable layout and themes

Programastat+

Not enough reviews yet to summarise bugs or requests.

In-app purchases

8 purchases

Calculator⁼

Subscriptions6
  • Weekly Premium Access3 Days trial$0.497 Days
  • Monthly full access3 Days trial$1.991 Month
  • Weekly Premium Access3 Days trial$1.997 Days
Show 3 more
  • Limited Time Offer$4.991 Year
  • Premium Yearly3 Days trial$5.991 Year
  • Annual Premium Access$9.991 Year
One-time2
  • Retro Theme Calculator'$0.99
  • Lifetime Full Access$14.99
None

Programastat+

No in-app purchases

Questions

Is Calculator⁼ free?
Calculator⁼ is free to download, with in-app purchases available.
Is Programastat+ free?
Programastat+ is free to download, with no in-app purchases.
Do Calculator⁼ or Programastat+ have ads?
Calculator⁼ shows ads; Programastat+ does not.
Which is updated more often, Calculator⁼ or Programastat+?
Calculator⁼ ships an update monthly, and Programastat+ every 19 months. Most recently, Calculator⁼ was updated on September 25, 2026 and Programastat+ on June 1, 2026.

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