Comparison

Calcutron vs Scan Note App

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

Head to head
About

Calcutron

This tool helps designers, developers, and artists proportionally resize digital assets. Easily calculate new dimensions for images, videos, or layouts by entering one measurement.

Highlights
  • Calculate missing dimension automatically
  • Use common or custom aspect ratios
  • Save frequently used sizes
  • Swap width and height with one tap
  • Round dimensions to specified decimal places
Read full description

Calcutron is a tool for designers, developers, graphic artists, photographers, or anyone who needs to proportionally resize digital assets or layouts based on their current size or aspect ratio. Calcutron makes it easy to quickly determine the new dimensions of any asset, such as video, photographs, or graphics. Simply enter one dimension and the other dimension is automatically calculated for you based on the original size or aspect ratio. In addition to graphic-professionals, Calcutron is a great tool for programmers who need to resize images or video in code. It can be a real time-saver over doing all the calculations manually. FEATURES • Enter the width or height to automatically calculate the other dimension. • Choose from a list of common aspect ratios or enter your own. • Save your most-used sizes as favorites. • Quickly swap width and height values with a single tap. • Round calculated dimensions up, down, or nearest - from 0-4 decimal places.

About

Scan Note App

This utility app allows you to attach QR codes to your belongings. If an item is found, the scanner is directed to your custom contact page, enabling quick and easy recovery with location notifications.

Highlights
  • Attach QR codes to items
  • Create custom contact pages
  • Receive location notifications
  • Easy item recovery
  • Personalized messages for finders
Features
Read full description

Never lose your valuables again! Scan Note is the smart way to protect and recover your belongings. Attach a unique QR code to any item, and create a customizable message for whoever finds it. When someone scans the code, they're directed to your personalized contact page. For example, you could write a friendly note like "If found, please contact me at [your preferred contact method]" or include a reward message. The scanner receives your instructions, and you instantly get a notification with their location, making item recovery quick and easy. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Calcutron4 screens
Scan Note App4 screens

Verdict

The call

The clearest difference is price: Scan Note App at Free against Calcutron's $0.99. Scan Note App also leads on update cadence (every 6 weeks vs every 33 months). Calcutron's advantage is in-app purchases (none vs 3). On rating, review sentiment, ratings volume and ads 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

Scan Note App is free to download; Calcutron costs $0.99 up front. Scan Note App sells 3 in-app purchases, starting at $4.99 per month. Calcutron asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Calcutron against 5.0 for Scan Note App. Both are backed by a comparable volume of ratings — 3 and 3 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

UpkeepUpdate frequency

Calcutron ships an update every 33 months, Scan Note App every 6 weeks. The most recent releases landed on October 2, 2026 and September 25, 2026 respectively.

Scorecard4 real differences · 6 level
Calcutron versus Scan Note App: the parameters behind the verdict, then further details
ParameterCalcutronScan Note App
Price$0.99Free — better
Rating5.0 (3 ratings)5.0 (3 ratings)
Positive reviews100.0% of reviews100.0% of reviews
Number of ratings33
Update frequencyEvery 33 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS14.7 — better15.6
Further details — not scored
Size0 MB126 MB
Age rating4+4+
DeveloperSolo Design, LLCLilikoi Ventures, LLC

Customer experience

Calcutron

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Scan Note App

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Calcutron

No in-app purchases

3 purchases

Scan Note App

Subscriptions3
  • Monthly Subscription$4.991 Month
  • Quarterly Subscription$12.993 Months
  • Annual Subscription$29.991 Year

Questions

Is Calcutron free?
Calcutron costs $0.99, with no in-app purchases.
Is Scan Note App free?
Scan Note App is free to download, with in-app purchases available.
Which has better reviews, Calcutron or Scan Note App?
Calcutron and Scan Note App are both rated 5.0 out of 5 on the App Store, from 3 and 3 ratings respectively.
Do Calcutron or Scan Note App have ads?
Neither Calcutron nor Scan Note App shows ads.
Which is updated more often, Calcutron or Scan Note App?
Calcutron ships an update every 33 months, and Scan Note App every 6 weeks. Most recently, Calcutron was updated on October 2, 2026 and Scan Note App on September 25, 2026.

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