Comparison

Calculator Plus v2 vs LockInNote

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

Head to head
About

Calculator Plus v2

This app offers a powerful yet simple calculator experience, combining standard and scientific functions with live previews and error hints. It supports various input methods, including hardware keyboards and Apple Pencil, and provides multiple display formats for clear understanding of calculations.

Highlights
  • Standard and scientific calculator
  • Live expression and answer preview
  • Multiple display formats
  • Hardware keyboard support
  • Apple Pencil Scribble support
  • Bi-directional clipboard support
  • Syntax error hints
Read full description

Calculator Plus is a standard and scientific calculator that has simplicity at its core, while not compromising on functionality. Even with its simple user interface inspired by the built-in Calculator app on iOS, it offers much, much more - and with no ads! With full expression and live answer preview, be faster than ever at calculating, and see exactly what you typed. Understand your answers by displaying them in exact form, scientific notation, fractions and more. Catch the exact errors with helpful syntax errors, with beautiful animations to complement your calculations. The full scientific calculator is also present in the portrait layout, so you can calculate scientific operations away one-handed on your phones, or via a space-efficient vertical window on larger screens. That's not all! If you're on a Mac, or have a hardware keyboard connected to your iPad or iPhone, simply type your math expressions normally and it will be registered - including every scientific operation listed. Clipboard support not only allows you to copy your calculations for others to see, it also gives you the ability to instantly take any expression from anywhere and paste into the app. Plus, enjoy bonus functionality like math expression autocorrection, voice dictation, Apple Pencil Scribble, and more! Download Calculator Plus to experience it for yourself! Feature List: - Standard & Scientific Calculator. - Simple UI design puts focus on your calculations. - Live expression and answer display while typing. - Full scientific calculator in the portrait layout with minimal rearrangement. - View long operations comfortably with scrollable calculation panels. - Multiple display formats: Exact Form, Scientific Notation, Fractions and more! - Bi-directional clipboard: Copy & Paste any expression into and out of the app. - Math Evaluation Overrides: For those who want to configure autocorrect or prefer non-standard notations/conventions. - Custom Scientific Typing Mode: Append, Substitute or a hybrid of both when using on-screen buttons. - Full Hardware Keyboard input support (including scientific operations!) - Apple Pencil Scribble support on iPadOS 14+ in English. - Basic Voice Dictation input support in English. - iPadOS SlideOver, Split View and Stage Manager multitasking support. - Satisfying clicks with haptic feedback on modern iPhones. - Complete support for all math operations and input methods on the Apple Watch app. - Useful Syntax Error hints to let you know exactly what's wrong. - Lightweight: only a few MB in size. - No ads, no tracking :) If you have or find any problems, feel free to contact me under App Support within Calculator Plus. Developer: Wern

About

LockInNote

Quickly jot down notes directly on your home screen or lock screen widgets. Customize the appearance of your notes with various font and design options. Sync across devices using iCloud and link to other apps with URL schemes.

Highlights
  • Widget note-taking
  • Customizable font and design
  • iCloud sync
  • URL scheme actions
  • Share sheets
  • Multi-platform support
Read full description

Memo note app specialized for widgets. When you want to take a memo, you can write it out right away on the widgets, and you can easily check the memo on the widgets anytime! The design of the memo note on the widgets can be flexibly customized, so it can be used for various purposes. - Tap the widget to immediately edit the memo note. - Font "size", "design", "color", and "weight" can be adjusted. - You can also select the alignment of multiple lines, the display pattern when no text is entered, and more. - Sync notes between devices by iCloud - You can set any "URL scheme action" to link with other apps.(iOS, iPadOS, macOS) - Share sheets allow you to easily share text to other applications.(iOS, iPadOS) Multi platform support iPhone: Home screen, Lock screen, StandBy(iOS 17) iPad: Home screen, Lock screen(iPadOS 17) Mac: Notification center, Desktop(macOS 14) Apple Watch: Complication, Smart Stack(watchOS 10)

Screenshots

Calculator Plus v24 screens
LockInNote4 screens

Verdict

The call

The clearest difference is in-app purchases: Calculator Plus v2 at none against LockInNote's 1. Calculator Plus v2 also leads on ratings volume (132 vs 4) and iOS requirement (12.0 vs 16.0). LockInNote's advantage is rating (5.0 vs 4.7). On price, update cadence, ads 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. LockInNote sells 1 one-off in-app purchase. Calculator Plus v2 asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

LockInNote holds the better App Store score, 5.0 against 4.7. That said, the two scores are not equally well evidenced: Calculator Plus v2 has 132 ratings behind it against 4, so its average is the more settled of the two.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard5 real differences · 5 level
Calculator Plus v2 versus LockInNote: the parameters behind the verdict, then further details
ParameterCalculator Plus v2LockInNote
PriceFreeFree
Rating4.7 (132 ratings)5.0 (4 ratings) — better
Positive reviews89.2% of reviews—
Number of ratings132 — better4
Update frequencyEvery 2 monthsEvery 2 months
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod, Mac, Apple Watch — betteriPhone, iPad, Mac, Apple Watch
Requires iOS12.0 — better16.0
Further details — not scored
Size14 MB9 MB
Age rating4+4+
DeveloperWern Jie LimRyo Yamashita

Customer experience

Calculator Plus v2

All ratings131 ratings
Positive93.1%
Neutral2.3%
Negative4.6%
Written reviews213 reviews
Positive89.2%
Neutral2.8%
Negative8.0%

LockInNote

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Calculator Plus v2

Reported bugs

3 issues
  • Crashes after recent update
  • Incorrect results for some calculations
  • Keyboard input not working as expected

Requested features

6 requests
  • Add widget support
  • Implement iCloud sync for history
  • Provide light/dark mode options
  • Allow customization of button layout
  • Add unit conversion tools
Show 1 more
  • Improve percentage calculation logic

LockInNote

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Calculator Plus v2

No in-app purchases

1 purchases

LockInNote

One-time1
  • AD Free (iOS, macOS)$0.99

Questions

Is Calculator Plus v2 free?
Calculator Plus v2 is free to download, with no in-app purchases.
Is LockInNote free?
LockInNote is free to download, with in-app purchases available.
Which has better reviews, Calculator Plus v2 or LockInNote?
LockInNote is rated higher. Calculator Plus v2 averages 4.7 out of 5 from 132 ratings, while LockInNote averages 5.0 from 4 ratings.
Do Calculator Plus v2 or LockInNote have ads?
Neither Calculator Plus v2 nor LockInNote shows ads.
Which is updated more often, Calculator Plus v2 or LockInNote?
Calculator Plus v2 ships an update every 2 months, and LockInNote every 2 months. Most recently, Calculator Plus v2 was updated on November 2, 2026 and LockInNote on November 3, 2026.

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