Comparison

SimpleSigma vs noteSUM

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

Head to head
About

SimpleSigma

Features
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โ–  About SimpleSigma A simple and powerful calculator app for everyday use. From shopping calculations to business tallies, SimpleSigma handles it all. Choose from 3 table types to match your needs. โ–  Key Features Simple Table - Extremely simple input - Auto-totaling as you type - Quick sum calculation - Perfect for receipt scanning (Pro - Beta) Duplex Table - Multiply two values automatically - Great for area or unit price calculations - Subtotal display Shopping Table - Price x Quantity = automatic calculation - Custom tax rates - Subtotals at a glance Common Features for All Tables - Swipe keyboard up/down/left/right to move between cells - CSV export - Auto-save โ–  Pro Version Benefits Upgrade to SimpleSigma Pro for more power: No Ads Work distraction-free Unlimited Tables Create as many tables as you need (Free: 3 max) Advanced Statistics - Period-based totals (Today, Week, Month, Year) - Daily trend charts - Type breakdown pie charts - Total, Average, Max, Min at a glance - CSV export AppleWatch supported - Simple Table, Sharing with iPhone Receipt OCR (Beta) - Scan receipts with camera - Auto-recognize total amounts - Best suited for Simple Table - Save time on manual entry Starting at $2.99/month Save more with yearly plan! โ–  Perfect For - Quick shopping calculations - Business expense tracking - Visualizing spending patterns - Managing multiple projects separately - Ad-free focus โ–  Highlights - Extremely simple input design - Swipe keyboard (up/down/left/right) for fast cell navigation - Native iOS interface - Auto-save results - CSV export for data portability - Japanese & English support โ–  Free Version Includes - All 3 table types - Up to 3 tables - Core calculation features - Keyboard swipe navigation - CSV export โ–  Privacy - All data stored locally on device - No external server uploads - Secure iOS backup โ–  Support Questions or feedback? Contact us: applicast3@gmail.com Make calculations smarter with SimpleSigma. Download now and try Pro for full features! Terms of Service: https://gist.github.com/zekoo2026/892cbcbb08ec7a1ce6e54e370acf2b51 Privacy Policy: https://gist.github.com/zekoo2026/12756689700e4afa4c9295cc4e0ba244

About

noteSUM

Features
Read full description

noteSUM is an application that automatically calculates the sum of numerical values entered in a text. You can manage bank balances, total weight, total number of points, etc. by entering them all as single text without having to separate the numerical values from the note. Examples of use: - Credit card usage records - Household account book - Estimates - Salary calculation - Shopping - Pocketbook - Budget - Inventory management - Stock prices, etc. It also numbers extracted from notes are listed, and you can choose to include or exclude them from the total for each number. Other functions: - Record history of notes - Register favorite notes - Text sharing - Setting not to include the date number in the totalizer

Screenshots

SimpleSigma4 screens
noteSUM4 screens

Verdict

The call

The clearest difference is iOS requirement: noteSUM at 14.0 against SimpleSigma's 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. SimpleSigma sells 2 in-app purchases, starting at $2.99 per month and noteSUM sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

SimpleSigma ships an update every 6 weeks, noteSUM monthly. The most recent releases landed on September 11, 2026 and September 8, 2026 respectively.

Scorecard1 real difference ยท 5 level
SimpleSigma versus noteSUM: the parameters behind the verdict, then further details
ParameterSimpleSigmanoteSUM
PriceFreeFree
Update frequencyEvery 6 weeksMonthly โ€” better
AdsYesYes
In-app purchasesYesYes
DevicesiPhone, Apple WatchiPhone, iPad, iPod โ€” better
Requires iOS26.014.0 โ€” better
Further details โ€” not scored
Size7 MB7 MB
Age rating4+4+
DeveloperMUTSUAKI KIKUCHIKazuhiro Sawamura

In-app purchases

2 purchases

SimpleSigma

Subscriptions2
  • SimpleSigma Pro (Monthly)$2.991 Month
  • SimpleSigma Pro (Yearly)$29.991 Year
3 purchases

noteSUM

One-time3
  • Number of History records$0.99
  • Number of Favorites$0.99
  • Hide Ads$2.99

Questions

Is SimpleSigma free?
SimpleSigma is free to download, with in-app purchases available.
Is noteSUM free?
noteSUM is free to download, with in-app purchases available.
Do SimpleSigma or noteSUM have ads?
Both SimpleSigma and noteSUM show ads.
Which is updated more often, SimpleSigma or noteSUM?
SimpleSigma ships an update every 6 weeks, and noteSUM monthly. Most recently, SimpleSigma was updated on September 11, 2026 and noteSUM on September 8, 2026.

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