Comparison

Function Calc vs Passwall Password Manager

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

Head to head
About

Function Calc

This app offers a powerful, programmable scientific calculator with graphing capabilities. It allows users to create custom functions, store equations, and perform complex calculations with ease. The interface features a visible tape display and supports dictation for statistical analysis.

Highlights
  • Programmable custom functions
  • Graphing capabilities
  • Tape display with edit/undo
  • Unit conversions (120+)
  • Dictate calculations
  • Export graphs (PDF, PNG)
Features
Read full description

A full-function, programmable, graphing scientific calculator designed to be very quick and easy to use, but with the added power of customisation. Tape display is visible while you type, and a swipe away from full screen view. Select and directly input any number from tape, undo or edit calculations. Easily create and use custom functions, store equations and useful numbers, use complex functions with multiple variables - fully programmable. Plot functions on a zoomable graph, export a high-resolution pdf copy. Dictate calculations and numbers for statistical analysis, with instant results. Completely free. • no adverts, no in-app purchases. • full set of scientific functions, unlimited nested brackets. • swipe to undo, step by step. • easily edit calculations and re-calculate. • optionally enter and edit calculations in standard maths format, rather than calculator order. • visible memory store. • tape output shows all calculations – swipe for full screen. • never type the same number twice – direct input from tape. • instantly convert between more than 120 different units. • zoomable text for easy reading and editing. • fully editable useful numbers page – store constants, conversion factors, commonly used numbers, tappable URLs or email addresses, or any text. • create, store and use functions for unit conversions or calculations, as simple as copy and paste. • dictate calculations, or lists of numbers for statistical analysis, get instant results. • create, edit and use complex functions with up to ten inputs or outputs – solve quadratic and cubic equations, calculate mortgage payments, compound interest, body mass index, triangles, the day of the week for any date, sunrise and sunset times and direction for any date and place, statistics (including normal, Student's T, Chi Square and F cumulative probability functions) and more – create or keep exactly what is useful, edit or delete what isn’t. 50 functions included. • fully zoomable graphing capability, plot one or two functions on a graph. Export PNG or high-resolution large pdf copies. • ideal for complex or repetitive tasks – custom functions reduce errors. • full help included.

About

Passwall Password Manager

Features
Read full description

Passwall: The Ultimate Secure Password Manager Welcome to Passwall, the ultimate mobile application for securely storing and managing all your passwords. With Passwall, you can say goodbye to the hassle of remembering multiple passwords and confidently access your online accounts with just a single master password. Our app takes your security seriously by utilizing advanced encryption methods to store and protect your valuable login credentials. Key Features: • Create Strong and Secure Passwords Tired of coming up with complex passwords? Let Passwall's built-in password generator do the work for you. With a single tap, you can create strong and secure passwords that help keep your accounts safe. • Securely Encrypted Vault All your usernames and passwords are stored in Passwall's encrypted vault. Our encryption helps protect your data against unauthorized access. Your information is accessible only with your master password. • Intuitive and User-Friendly Interface Passwall offers a clean, intuitive interface for managing your passwords. Organize accounts, search quickly, and enjoy a simple experience without compromising on security. • Effortless Autofill With Passwall's Autofill, logging in is easier. Go to a login page and Passwall can detect username and password fields. One tap fills in your credentials so you can sign in without typing. • Customizable Autofill Settings Configure Passwall to remember specific sites or apps and fill in credentials when you need them. Control your Autofill preferences to match how you use your devices. • Simplify Your Digital Life Spend less time remembering and typing passwords. With Autofill, streamline logins, save time, and focus on what matters. Download Passwall and manage your passwords with confidence. Join the users who trust Passwall to help protect their accounts. — Privacy Policy: https://passwall.io/privacy Terms of Use (EULA): https://passwall.io/terms

Screenshots

Function Calc4 screens
Passwall Password Manager4 screens

Verdict

The call

The clearest difference is in-app purchases: Function Calc at none against Passwall Password Manager's 2. Function Calc also leads on ads (none vs shown). Passwall Password Manager's advantage is iOS requirement (13.4 vs 18.6). 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. Passwall Password Manager sells 2 in-app purchases, starting at $1.99 per month. Function Calc asks for nothing beyond the download.

UpkeepUpdate frequency

Function Calc ships an update monthly, Passwall Password Manager every 5 weeks. The most recent releases landed on September 23, 2026 and September 15, 2026 respectively.

Scorecard3 real differences · 7 level
Function Calc versus Passwall Password Manager: the parameters behind the verdict, then further details
ParameterFunction CalcPasswall Password Manager
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews80.0% of reviews—
Number of ratings3 — better—
Update frequencyMonthly — betterEvery 5 weeks
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhoneiPhone, iPod — better
Requires iOS18.613.4 — better
Further details — not scored
Size5 MB41 MB
Age rating4+4+
DeveloperHugh PelhamPasswall Ltd

In-app purchases

None

Function Calc

No in-app purchases

2 purchases

Passwall Password Manager

Subscriptions2
  • Passwall Pro Monthly$1.991 Month
  • Passwall Pro7 Days trial$34.991 Year

Questions

Is Function Calc free?
Function Calc is free to download, with no in-app purchases.
Is Passwall Password Manager free?
Passwall Password Manager is free to download, with in-app purchases available.
Do Function Calc or Passwall Password Manager have ads?
Passwall Password Manager shows ads; Function Calc does not.
Which is updated more often, Function Calc or Passwall Password Manager?
Function Calc ships an update monthly, and Passwall Password Manager every 5 weeks. Most recently, Function Calc was updated on September 23, 2026 and Passwall Password Manager on September 15, 2026.

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