Comparison

Ctrl+C vs Simple Harmonic Motion Calc

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

Head to head
About

Ctrl+C

This tool allows you to automatically record copied text via a widget. It helps you manage, edit, and combine multiple copied items for easy sharing across platforms. Save and load your archives for future use.

Highlights
  • Widget for automatic text recording
  • Manage, edit, and sort multiple copied texts
  • Combine all copied text into one for easy sharing
  • Save and load text archives
  • Gesture-based text editing
  • Customizable themes
Features
Read full description

Important! Starting with iOS 18, Today Extensions are no longer supported. Please use the Shortcut as an alternative. Shortcut: https://www.icloud.com/shortcuts/4f78c36a43c042fe926a3ff537c8dc33 Tutorial video: https://www.youtube.com/shorts/UWFlRxBYnsI Ctrl+C like a clipboard in widget and you can copy words automatically in it. It's a useful, simple and quick tool. Help you to copy and edit words. All you need to do is copy words and pull down Notification Center, then Ctrl+C in widget will record these contents automatically. "Copy all" function can combine all contents to one content and copy it. You can paste it to every platforms you want to share. ◎ Support iOS 8 widget to record the text that you copied from other place When you copied a text from other place and scroll down Notification Center, the text will be appeared in widget and you can press + button to record it. ◎ Keep and list multi texts Can record up to 10 texts, and support text editing, sorting or deleted. ◎ A key to copy all the text merge Just one button, combine all texts listed in app for easy sharing and pasting anywhere. ◎ Save and load archive Support save the texts to archive, you can save 10 texts in one archive, and the number of archive is unlimited. ◎ Edit text through gestures 1. Single press: Copy text 2. Long press: Edit text 3. Left slide: Delete text ◎ New user interface and themes Now,you can change other themes anytime.

About

Simple Harmonic Motion Calc

This physics calculator quickly computes various parameters of simple harmonic motion, including amplitude, frequency, displacement, velocity, and acceleration. It supports high precision calculations and offers unit flexibility, making it a handy tool for students and professionals.

Highlights
  • Instant calculation of motion parameters
  • Copyable results
  • Included reference formulas
  • Supports 16 decimal places
  • Multiple unit support
  • Ad-free and private
Features
Read full description

Simple Harmonic Motion Calculator — a fast, accurate physics tool for solving displacement, velocity, and acceleration. Built for students, teachers, and engineers who need instant, reliable results. Enter amplitude, time, and phase, then choose angular frequency (ω), frequency (f), or period (T) — the app converts everything automatically and delivers real-time answers with beautiful, interactive graphs. KEY FEATURES • Instant x(t), v(t), and a(t) using the standard SHM equations: x(t) = A · cos(ωt + φ) v(t) = −Aω · sin(ωt + φ) a(t) = −Aω² · cos(ωt + φ) • Maximum velocity (Aω) and maximum acceleration (Aω²) computed automatically • Pick ω, f, or T as your input — values convert seamlessly • Configurable units for every quantity: meters, centimeters, kilometers, feet, inches, yards, miles, hertz, kilohertz, radians, degrees, revolutions, and more • SI / Metric and Imperial unit groups • Standard or Scientific notation display (e.g. 1.28 × 10⁻¹⁵) • Live equation view substitutes your numbers into each formula step by step • Interactive graph of displacement, velocity, and acceleration across one full oscillation • Zoom, pan, cursor tracking, and PNG export for lab reports or presentations • Built-in formula reference covering every SHM relation and symbol • Save calculations to a private local history — review, reload, or clear at any time • Dynamic Type and accessibility support • Offline app — no ads, no tracking, no internet required PERFECT FOR • Physics students studying mechanics, waves, oscillations, and harmonic motion • Teachers preparing worked examples and lecture material • Engineers analyzing springs, pendulums, vibration systems, and resonance • Anyone learning sinusoidal motion and harmonic analysis Simplify your next physics homework, lab report, or engineering analysis — download Simple Harmonic Motion Calculator today. Thanks for your support, and do visit nitrio.com for more apps for your iOS devices.

Screenshots

Ctrl+C4 screens
Simple Harmonic Motion Calc4 screens

Verdict

The call

The clearest difference is price: Ctrl+C at Free against Simple Harmonic Motion Calc's $2.99. Ctrl+C also leads on update cadence (every 5 months vs every 28 months) and ratings volume (31 vs 2). Simple Harmonic Motion Calc's advantage is rating (5.0 vs 4.5) and in-app purchases (none vs 2). On ads, 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

Ctrl+C is free to download; Simple Harmonic Motion Calc costs $2.99 up front. Ctrl+C sells 2 one-off in-app purchases. Simple Harmonic Motion Calc asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Simple Harmonic Motion Calc holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: Ctrl+C has 31 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

Ctrl+C ships an update every 5 months, Simple Harmonic Motion Calc every 28 months. The most recent releases landed on October 24, 2026 and October 11, 2026 respectively.

Scorecard6 real differences · 4 level
Ctrl+C versus Simple Harmonic Motion Calc: the parameters behind the verdict, then further details
ParameterCtrl+CSimple Harmonic Motion Calc
PriceFree — better$2.99
Rating4.5 (31 ratings)5.0 (2 ratings) — better
Positive reviews66.7% of reviews—
Number of ratings31 — better2
Update frequencyEvery 5 months — betterEvery 28 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.0 — better17.6
Further details — not scored
Size7 MB1 MB
Age rating4+4+
DeveloperChang Chin-MingNitrio

Customer experience

Ctrl+C

All ratings31 ratings
Positive87.1%
Neutral3.2%
Negative9.7%
Written reviews51 reviews
Positive66.7%
Neutral13.7%
Negative19.6%

Simple Harmonic Motion Calc

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

Ctrl+C

One-time2
  • Auto preview website$0.99
  • Clipboard expansion$0.99
None

Simple Harmonic Motion Calc

No in-app purchases

Questions

Is Ctrl+C free?
Ctrl+C is free to download, with in-app purchases available.
Is Simple Harmonic Motion Calc free?
Simple Harmonic Motion Calc costs $2.99, with no in-app purchases.
Which has better reviews, Ctrl+C or Simple Harmonic Motion Calc?
Simple Harmonic Motion Calc is rated higher. Ctrl+C averages 4.5 out of 5 from 31 ratings, while Simple Harmonic Motion Calc averages 5.0 from 2 ratings.
Do Ctrl+C or Simple Harmonic Motion Calc have ads?
Neither Ctrl+C nor Simple Harmonic Motion Calc shows ads.
Which is updated more often, Ctrl+C or Simple Harmonic Motion Calc?
Ctrl+C ships an update every 5 months, and Simple Harmonic Motion Calc every 28 months. Most recently, Ctrl+C was updated on October 24, 2026 and Simple Harmonic Motion Calc on October 11, 2026.

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