Comparison

SumsApp vs Soulver 4

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

Head to head
About

SumsApp

This smart notepad automatically detects numbers within your notes and calculates their totals. Organize notes into folders for combined totals and use advanced search to filter and sum specific entries. It's a calculator and spreadsheet replacement for everyday number tracking.

Highlights
  • Automatic number detection
  • Automatic total calculation
  • Notes organization into folders
  • Combined folder totals
  • Advanced search and filtering
  • Freestyle note-taking with numbers
Features
Read full description

SumsApp is a smart notepad that detects numbers in your notes and calculates totals automatically. Use it to quickly jot down: - Quotes and estimates - Shopping or to-do lists - Expenses and daily spending - Anything with numbers, freestyle Put notes into folders to see combined totals—perfect for trip budgets or tracking categories. Advanced search lets you filter and total exactly what you need. No spreadsheets. No calculators. Just type and total.

About

Soulver 4

This app combines the functionality of a notepad with a powerful calculator. It allows users to perform complex calculations using natural language, supports unit conversions, date math, and live currency conversions. Organize your calculations in sheets with text comments and share them as PDFs.

Highlights
  • Natural language calculations
  • Unit and currency conversions
  • Date and time math
  • Live currency and stock prices
  • Customizable accessory keyboards
  • Spreadsheet-like line references
  • Variables and conditional statements
Features
Read full description

Ever reach for a calculator and the back of an envelope to work something out? That's what Soulver is for. It's a natural-language notepad calculator: think through a problem line-by-line, using plain words and numbers. The answers appear alongside each line as you type. Soulver isn't just a calculator app — it's the paper you'd scribble on to figure something out. Except this paper does the numbers for you, so you stay thinking at the level of your problem. 20% of $1,480 | $296 $100 in EUR | €86 240 km in miles | 149 mi $1,200 + 15% tax | $1,380 3 weeks from today | June 21 Because Soulver uses sheets (like Notes), you can explore different ideas: weigh options, change variables and watch everything update. WHAT CAN SOULVER CALCULATE? – Live currency conversions — 190 currencies, including crypto – Percentages in plain language — "20% off $50", "$50 is what % of $200" – Unit conversions — hundreds of units across length, weight, volume, data and more – Dates & time — "days until Christmas", time intervals, clock and video-timecode math – Time-zone conversions — "3pm New York to London" – Sums & averages – Financial functions — compound interest, mortgage repayments, hourly rates It's the closest thing to an on-device universal calculator ever created. DESIGNED FOR IPHONE – A meticulously designed numeric keyboard that makes calculating fast – Six specialised accessory keyboards — for currencies, percentages, dates & times, and variables – Build your own custom keyboard with the buttons you reach for most BEST-IN-CLASS ON IPAD – Multiple windows, Slide Over & Split View — float Soulver alongside Notes or Safari – Full Magic Keyboard support with dozens of keyboard shortcuts – Scribble & Apple Pencil – Find & replace, a line-styling palette and a powerful text editor – Automation with URL schemes & Siri Shortcuts POWER USER FEATURES – Multi-word variables — "total cost = $750" – Inline tokenized references to previous answers – Subtotals, tags & trip planning – Wolfram|Alpha integration – Headings, comments, labels & dividers to structure long sheets – Custom units and global variables in the definition sheet SHARING & SYNC – Sync your sheets with Soulver 4 for Mac via iCloud – Export to PDF & plain text, or send beautiful HTML emails – Share a calculation as an image — just take a screenshot ONE TIME PURCHASE Soulver is a one-time (non-subscription) purchase. We've been refining and improving Soulver since 2005, and major paid updates average once every 7 years. Try it free for 60 days, no commitment, no automatic charge. —————————————————————————————— Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

SumsApp4 screens
Soulver 44 screens

Verdict

The call

The clearest difference is rating: Soulver 4 at 4.9 against SumsApp's 4.6. Soulver 4 also leads on review sentiment (76% vs 64%). SumsApp's advantage is update cadence (every 10 days vs monthly) and monetization model (free with in-app purchases vs paid). On price, ratings volume, ads and in-app purchases 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. SumsApp sells 3 in-app purchases, starting at $0.99 per month and Soulver 4 sells 14 in-app purchases, starting at $26.00 per year. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Soulver 4 holds the better App Store score, 4.9 against 4.6. Both are backed by a comparable volume of ratings — 175 and 435 respectively. Written reviews point the same way: 64% of SumsApp's written reviews are positive against 76% of Soulver 4's.

UpkeepUpdate frequency

SumsApp ships an update every 10 days, Soulver 4 monthly. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.

Scorecard4 real differences · 6 level
SumsApp versus Soulver 4: the parameters behind the verdict, then further details
ParameterSumsAppSoulver 4
PriceFreeFree
Rating4.6 (175 ratings)4.9 (435 ratings) — better
Positive reviews63.6% of reviews76.3% of reviews — better
Number of ratings175435 — better
Update frequencyEvery 10 days — betterMonthly
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, MaciPhone, iPad, Mac
Requires iOS17.617.6
Further details — not scored
Size4 MB39 MB
Age rating4+4+
DeveloperTsuyoshi NiwaZac Cohan

Customer experience

SumsApp

All ratings173 ratings
Positive89.6%
Neutral2.9%
Negative7.5%
Written reviews77 reviews
Positive63.6%
Neutral2.6%
Negative33.8%

Soulver 4

All ratings429 ratings
Positive97.7%
Neutral0.5%
Negative1.9%
Written reviews245 reviews
Positive76.3%
Neutral7.8%
Negative15.9%

User reviews

SumsApp

From 175 App Store ratings

What we love

  • 👍 Simple and easy to use
  • 💡 Ingenious concept for calculations
  • 🚀 Efficient for quick math
  • 👍 Useful for expense tracking
  • 👍 Great for financial management

Room to improve

  • 😞 Aggressive subscription prompts
  • 😞 Data loss and deletion issues
  • 😞 Paid for app, now locked out
  • 😞 Frequent pop-ups for Pro upgrade
  • 😞 Unreliable data saving

Soulver 4

From 435 App Store ratings

What we love

  • 💻 Powerful calculation tool
  • 📝 Seamless note-taking integration
  • 🔢 Intuitive natural language input
  • 🗂️ Organized folder and sheet management
  • ⚙️ Extensive unit conversion capabilities

Room to improve

  • 💰 Expensive one-time purchase price
  • 🔁 Separate purchases for Mac, iPad, and iPhone
  • 🤖 AI integration requires additional subscription
  • 🐛 Occasional crashes and bugs reported
  • 📊 Limited spreadsheet-like functionality

Bugs and requests

SumsApp

Reported bugs

13 issues
  • Data is deleted/lost
  • App crashes after recent update
  • Pop-up prompts for Pro version appear constantly
  • Restore purchase does not work
  • Information entered disappears
Show 8 more
  • Calculations are incorrect
  • App no longer saves data
  • Paid features are inaccessible without subscription
  • App was renamed and requires repurchase
  • Unable to delete folders without premium subscription
  • Pop-up ads flood the screen
  • When selecting 'numbers only' to remove, everything is deleted
  • Data reverts or disappears after updates

Requested features

13 requests
  • Add '+' and '÷' symbols to number bar
  • Option to sync Mac version
  • Ability to group files for 'Totals' figure
  • Button to add date stamp
  • Option to automatically display date in notes
Show 8 more
  • Add a 'recently deleted' tab
  • Option to only sum numbers preceded by a symbol
  • Implement a checkbox for reflecting/not reflecting in total for budget adjustments
  • Ability to delete multiple items simultaneously without data loss
  • Option to make the app available on Android
  • Add a half-width space and '+' to the number input field
  • Ability to exclude specific text from sums
  • Option to add a tax calculation feature (e.g., calculate tax-exclusive amounts)

Soulver 4

Reported bugs

3 issues
  • Crashes when using certain emojis in sheet titles
  • Issues with iCloud sync and data migration from older versions
  • Inconsistent behavior when modifying variables and formulas

Requested features

4 requests
  • Improved iPad and iPhone UI/UX
  • Enhanced data export and sharing options
  • More advanced mathematical and scientific functions
  • Ability to define custom units and unit conversions

In-app purchases

3 purchases

SumsApp

Subscriptions3
  • Monthly Subscription1 Month trial$0.991 Month
  • Every 6 Months$4.496 Months
  • Yearly Subscription$7.991 Year
14 purchases

Soulver 4

Subscriptions1
  • AI Assistant, Stocks & Weather$26.001 Year
One-time13
  • Complementary UpgradeFree
  • 30-day free trial (for iPhone)Free
  • 60-day free trial (for iPad)Free
Show 10 more
  • 60-day free trial (for Mac)Free
  • Soulver 4 for iPhone (upgrade)$7.49
  • Soulver 3 for iPhone$14.00
  • Soulver 4 for iPhone$15.00
  • Soulver 3 for iPad$20.00
  • Soulver 4 (Upgrade from Soulver 3)$29.00
  • Soulver 4 (Promotion)$39.00
  • Soulver 3 for Mac$39.00
  • Soulver 4$54.00
  • Soulver 4$59.00

Questions

Is SumsApp free?
SumsApp is free to download, with in-app purchases available.
Is Soulver 4 free?
Soulver 4 is free to download, with in-app purchases available.
Which has better reviews, SumsApp or Soulver 4?
Soulver 4 is rated higher. SumsApp averages 4.6 out of 5 from 175 ratings, while Soulver 4 averages 4.9 from 435 ratings.
Do SumsApp or Soulver 4 have ads?
Neither SumsApp nor Soulver 4 shows ads.
Which is updated more often, SumsApp or Soulver 4?
SumsApp ships an update every 10 days, and Soulver 4 monthly. Most recently, SumsApp was updated on October 26, 2026 and Soulver 4 on October 27, 2026.

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