Comparison

Calculator PanecalST vs Standard Deviation Calc

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

Head to head
About

Calculator PanecalST

This calculator allows you to view and edit complex formulas with ease. It prevents errors by letting you check entries as you type and reuse past calculations by modifying values. Navigate and edit expressions quickly with a cursor and intuitive controls.

Highlights
  • Edit formulas as you type
  • Reuse past calculations
  • Navigate and edit with cursor
  • Cut, copy, and paste expressions
  • Time and tax calculations
  • History of expressions and answers
Features
Read full description

This is calculator app that allows you to display and modify formulas. It allows you to enter formulas while checking them, which prevents you from typing incorrectly or making calculation errors. It is also possible to reuse past formulas to change only certain values to calculate them. The cursor indicates on the display, and you can tap or press the arrow keys to quickly navigate to where you want to edit. It has a powerful, flexible and intuitive user interface with support for swiping to scroll through formulas and long-tap to copy and paste. [ Features ] - Easy operation for editing formulas - Re-calculation by using history - Four arithmetic operations, root, percentages, time, tax and parentheses calculations - Memory, M+, M-, MR, MC - Scroll up/down lines - Cut, copy and paste - Expressions history and answer history - Grouping separator and decimal point - Various settings (Long tap MENU key) [ What do you use "Calculator" for ] - General calculator - Tax and VAT - Sales, profit and cost - Split a payments at restaurant - Long formulas calculation - Formula include parenthesis - Elapsed time, time addition and subtraction, production time, costing from time [ Four arithmetic operations ] 1 + 2 - 3 × 4 ÷ 5 = 0.6   [ Time calculation ] 16:15 - 12:45 = 3:30:00 1.5 × (16:15 - 12:45) = 5:15:00 Press [H:M:S] key for changing value after calculation. =5.25 [ Root calculation (Long press)] √( 2 × 2) = 2   [ Percentage calculation ] 500 + 20% = 600 500 - 20% = 400 500 × 20% = 100 100 ÷ 500% = 20   [ Tax calculation ] 500 Tax+ = 525 525 Tax- = 500   [ Parenthesis calculation ] ( 1 + 2 ) × ( 3 + 4 ) = 21 ( 1 + 2 ) ( 3 + 4 ) ( 5 + 6 ) = 231   [ Grouping separator and decimal point ] 123,456,789.1 + 0.02 = 123,456,789.12 123.456.789,1 + 0,02 = 123.456.789,12 (Depends on setting)   [ Display ] Calculator indicates long expressions on the display. If you may mistake to input expressions, you can correct this expressions easily and quickly using by back space key, arrow keys and C(clear) key. [ Re-play and history functions ] Calculator has "Re-play function". It indicates expressions that you inputted in the recently using by △(re-play)key. If you long-press re-play key, expressions history table is available. [ Last answer and history functions ] Last answer is that indicates the last calculation result by using Ans key. If you long-press Ans key, a last answer history table is available. [ Percent calculator ] If you would like to calculate “20% more $50”, you can input 50+20% and get a result. [ Tax calculator ] This calculator can store tax rate in the setting. And you can get price including / excluding tax easily and quickly using by Tax+/Tax- keys. [ Disclaimer ] Please note in advance that Appsys is not responsible for any damage or lost profits caused by the use of this software, or any claims from third parties.

About

Standard Deviation Calc

Calculate standard deviation for sample or population data. Input numerical values to find standard deviation, count, sum, mean, variance, and more. Get quick statistical insights with this easy-to-use tool.

Highlights
  • Calculate standard deviation
  • Sample or population data
  • Compute mean and variance
  • Count numerical values
  • Sum of numbers
  • List of differences
Features
Read full description

Use this app to calculate standard deviation for a population or sample data set. Enter your numerical values, and the app will instantly calculate standard deviation, variance, mean, count, sum, and other supporting statistics. Results are estimates for informational purposes only. We are very happy to serve you. If you have any requests, don't hesitate to contact us. - https://www.facebook.com/phan.nhatdang.3/ - phannhatd@gmail.com

Screenshots

Calculator PanecalST4 screens
Standard Deviation Calc3 screens

Verdict

The call

The clearest difference is review sentiment: Calculator PanecalST at 67% against Standard Deviation Calc's 0%. Calculator PanecalST also leads on rating (4.8 vs 3.7) and in-app purchases (none vs 1). Standard Deviation Calc's advantage is ads (none vs shown). On price, update cadence 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. Standard Deviation Calc sells 1 one-off in-app purchase. Calculator PanecalST asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Calculator PanecalST holds the better App Store score, 4.8 against 3.7. That said, the two scores are not equally well evidenced: Calculator PanecalST has 95 ratings behind it against 11, so its average is the more settled of the two. Written reviews point the same way: 67% of Calculator PanecalST's written reviews are positive against 0% of Standard Deviation Calc's.

UpkeepUpdate frequency

Calculator PanecalST ships an update every 3 months, Standard Deviation Calc every 5 months. The most recent releases landed on October 19, 2026 and October 8, 2026 respectively.

Scorecard7 real differences · 3 level
Calculator PanecalST versus Standard Deviation Calc: the parameters behind the verdict, then further details
ParameterCalculator PanecalSTStandard Deviation Calc
PriceFreeFree
Rating4.8 (95 ratings) — better3.7 (11 ratings)
Positive reviews66.7% of reviews — better0.0% of reviews
Number of ratings95 — better11
Update frequencyEvery 3 months — betterEvery 5 months
AdsYesNo — better
In-app purchasesNo — betterYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better14.0
Further details — not scored
Size33 MB2 MB
Age rating4+4+
DeveloperNoriyasu KutsuzawaPhan Nhat Đang

Customer experience

Calculator PanecalST

All ratings95 ratings
Positive95.8%
Neutral2.1%
Negative2.1%
Written reviews33 reviews
Positive66.7%
Neutral9.1%
Negative24.2%

Standard Deviation Calc

All ratings11 ratings
Positive63.6%
Neutral9.1%
Negative27.3%
Written reviews2 reviews
Positive0.0%
Neutral50.0%
Negative50.0%

In-app purchases

None

Calculator PanecalST

No in-app purchases

1 purchases

Standard Deviation Calc

One-time1
  • Remove ads$1.99

Questions

Is Calculator PanecalST free?
Calculator PanecalST is free to download, with no in-app purchases.
Is Standard Deviation Calc free?
Standard Deviation Calc is free to download, with in-app purchases available.
Which has better reviews, Calculator PanecalST or Standard Deviation Calc?
Calculator PanecalST is rated higher. Calculator PanecalST averages 4.8 out of 5 from 95 ratings, while Standard Deviation Calc averages 3.7 from 11 ratings.
Do Calculator PanecalST or Standard Deviation Calc have ads?
Calculator PanecalST shows ads; Standard Deviation Calc does not.
Which is updated more often, Calculator PanecalST or Standard Deviation Calc?
Calculator PanecalST ships an update every 3 months, and Standard Deviation Calc every 5 months. Most recently, Calculator PanecalST was updated on October 19, 2026 and Standard Deviation Calc on October 8, 2026.

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