Comparison

Calculator PanecalST Plus vs TwoDo

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

Head to head
About

Calculator PanecalST Plus

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

Highlights
  • Formula editing with cursor
  • Re-calculation using history
  • Time, tax, and percentage calculations
  • Cut, copy, and paste functionality
  • Expression and answer history
  • Customizable settings
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

TwoDo

This utility app helps couples and partners manage shared tasks like shopping lists, places to visit, and to-dos. It features real-time synchronization between devices, ensuring both partners are always updated on additions and deletions. Say goodbye to forgotten items and missed opportunities with this simple, intuitive tool.

Highlights
  • Shared task management for couples
  • Real-time synchronization
  • Simple and intuitive UI
  • Manages shopping, places, and to-dos
  • Eliminates forgotten tasks
Features
Read full description

TwoDoは夫婦や恋人のためのToDoアプリです。 買うもの、行くとこ、すること、の3つを シンプルなUIで管理します。 相手がタスクを追加・削除すると すぐに自分のiPhoneにもリアルタイムに同期されます。 行こう行こうと思ってずっと行けていない場所、 買い物に行ったのに買い忘れて帰ってくる経験、 やろうと思ってるままやらず終いになっていること、 そんな全てとおさらばです。 TwoDo is a to-do app for couples and lovers. It manages three things: what to buy, where to go, and what to do, with a simple UI. If your partner adds or deletes a task, it will be synced to your iPhone soon. You can say goodbye to the places you've been meaning to go but haven't, the shopping you've gone to but forgot to buy, and the things you've been meaning to do but haven't done yet.

Screenshots

Calculator PanecalST Plus4 screens
TwoDo3 screens

Verdict

The call

The clearest difference is update cadence: TwoDo at every 2 days against Calculator PanecalST Plus's every 4 months. TwoDo also leads on review sentiment (100% vs 82%) and price ($0.99 vs $1.99). Calculator PanecalST Plus's advantage is iOS requirement (12.0 vs 14.0). On ads, in-app purchases, monetization model 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

Calculator PanecalST Plus costs $1.99 and TwoDo $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Calculator PanecalST Plus ships an update every 4 months, TwoDo every 2 days. The most recent releases landed on September 19, 2026 and September 21, 2026 respectively.

Scorecard4 real differences · 6 level
Calculator PanecalST Plus versus TwoDo: the parameters behind the verdict, then further details
ParameterCalculator PanecalST PlusTwoDo
Price$1.99$0.99 — better
Rating4.9 (15 ratings) — better—
Positive reviews82.4% of reviews100.0% of reviews — better
Number of ratings15 — better—
Update frequencyEvery 4 monthsEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS12.0 — better14.0
Further details — not scored
Size17 MB26 MB
Age rating4+4+
DeveloperNoriyasu KutsuzawaRyo Makishima

Customer experience

Calculator PanecalST Plus

All ratings15 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews34 reviews
Positive82.4%
Neutral5.9%
Negative11.8%

TwoDo

Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Calculator PanecalST Plus

No in-app purchases

None

TwoDo

No in-app purchases

Questions

Is Calculator PanecalST Plus free?
Calculator PanecalST Plus costs $1.99, with no in-app purchases.
Is TwoDo free?
TwoDo costs $0.99, with no in-app purchases.
Do Calculator PanecalST Plus or TwoDo have ads?
Neither Calculator PanecalST Plus nor TwoDo shows ads.
Which is updated more often, Calculator PanecalST Plus or TwoDo?
Calculator PanecalST Plus ships an update every 4 months, and TwoDo every 2 days. Most recently, Calculator PanecalST Plus was updated on September 19, 2026 and TwoDo on September 21, 2026.

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