Amount Plus vs Soulver 4
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Amount Plus
This app offers an enhanced unit conversion experience with a beautiful interface and extensive customization. It provides over 700 units across 30 categories, advanced search and filtering, and shortcuts for quick conversions. It also supports widgets and Apple Watch for convenient access.
- Over 700 units in 30+ categories
- Advanced search, filter, and compare
- Customizable shortcuts for fast conversions
- User-definable custom units
- Today widget and Apple Watch support
- Gorgeous, user-friendly interface
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Amount Plus is an enhanced version of the multi award winning unit conversion app Amount. Amount Plus improves every aspect of the predecessor by adding more advanced features to increase your productivity without sacrificing its famous simplicity. With a new gorgeous user interface and unrivaled customization features Amount Plus gives you the ability to convert everything you need just the way you like! FEATURES • Converts units faster than before; • Has over 700 units across more than 30 categories; • Offers new ways to search, filter, convert and compare units; • Allows the creation of shortcuts for incredibly fast conversions; • Completely customizable at user needs; • Custom units can be easily added for each category; • Supports Today widget extension to quickly access your favorite conversions; • Supports Apple Watch to convert units directly on your wrist; Categories Amount Plus can handle: Acceleration, Angles, Area, Astronomical, Clothing (men and women), Cooking, Currency, Data, Density, Electric current, Energy, Flow (mass and volume), Force, Frequency, Fuel Consumption, Illuminance, Length and Distance, Luminance, Metric System, Network speed, Power, Pressure, Radiation, Sound, Speed, Temperature, Textile Yarn, Time, Torque, Transportation Cost, Typography, Viscosity (dynamic and kinematic), Volume, Weight and Mass. ADDITIONAL INFO To convert currencies is required an internet connection. Currency and clothing size information are provided only for informational purposes. If you're going to download Amount Plus please rate and leave a comment! And if you have a suggestion don't hesitate to contact me. With your help I can improve Amount Plus even more!
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.
- 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
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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
Verdict
The clearest difference is price: Soulver 4 at Free against Amount Plus's $0.90. Soulver 4 also leads on rating (4.9 vs 4.3) and review sentiment (76% vs 61%). Amount Plus's advantage is in-app purchases (none vs 10) and iOS requirement (9.0 vs 17.6). On update cadence, ads, 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
Soulver 4 is free to download; Amount Plus costs $0.90 up front. Soulver 4 sells 10 in-app purchases, starting at $26.00 per year. Amount Plus asks for nothing beyond the download.
Soulver 4 holds the better App Store score, 4.9 against 4.3. Both are backed by a comparable volume of ratings — 96 and 437 respectively. Written reviews point the same way: 61% of Amount Plus's written reviews are positive against 76% of Soulver 4's.
Both ship on a similar rhythm, roughly monthly. Both last shipped on November 11, 2026.
| Parameter | Amount Plus | Soulver 4 |
|---|---|---|
| Price | $0.90 | Free — better |
| Rating | 4.3 (96 ratings) | 4.9 (437 ratings) — better |
| Positive reviews | 61.2% of reviews | 76.0% of reviews — better |
| Number of ratings | 96 | 437 — better |
| Update frequency | Monthly | Monthly |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod, Apple Watch — better | iPhone, iPad, Mac |
| Requires iOS | 9.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 7 MB | 40 MB |
| Age rating | 4+ | 4+ |
| Developer | Marco Torretta | Zac Cohan |
Customer experience
Amount Plus
Soulver 4
Bugs and requests
Amount Plus
Not enough reviews yet to summarise bugs or requests.
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
Amount Plus
No in-app purchases
Soulver 4
- AI Assistant, Stocks & Weather$26.001 Year
- 60-day free trial (for iPad)Free
- 60-day free trial (for Mac)Free
- Soulver 3 for iPhone$14.00
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- Soulver 4 for iPhone$15.00
- Soulver 3 for iPad$20.00
- Soulver 4 (Upgrade from Soulver 3)$29.00
- Soulver 3 for Mac$39.00
- Soulver 4$54.00
- Soulver 4$59.00
Questions
Is Amount Plus free?
Is Soulver 4 free?
Which has better reviews, Amount Plus or Soulver 4?
Do Amount Plus or Soulver 4 have ads?
Which is updated more often, Amount Plus or Soulver 4?
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