Comparison

Social Security Calculator vs Willby

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

Head to head
About

Social Security Calculator

Estimate the optimal age to begin receiving Social Security benefits. Compare potential lifetime net income across different starting ages, considering factors like compound interest and expenses. Presents detailed results in interactive summary, spreadsheet, and graph formats for informed retirement planning.

Highlights
  • Estimate profitable Social Security benefit starting age
  • Calculate potential lifetime net income
  • Interactive summary, spreadsheet, and graph results
  • Save and label calculation inputs
  • In-app help and resources
  • Optional inclusion of other income and expenses
Currently charting
Read full description

What is the best age to start your Social Security benefits? What if you start at 62 with reduced benefits, but invest and get compound interest? Or is it a good idea for you to wait until 70 for increased benefits? The Social Security Calculator is a powerful estimating tool that can answer these questions and help you plan for retirement. [ Features ] • Estimates the most profitable starting age for your benefits based on your income and life expectancy • Calculates your potential lifetime net income for all benefit starting ages so you can easily compare the results • Your date of birth and benefit amount at full retirement age are all you need to know (benefits at FRA can be found on your Social Security statement or by creating an account on SSA.gov) • Optionally include other monthly income, an interest rate for income, monthly expenses, and an interest rate for expenses • Optionally disable paying down expenses (potentially useful in situations when compounding income exceeds compounding expenses) • Detailed results are presented in interactive Summary, Spreadsheet, and Graph formats • Calculation inputs can be labeled and saved for quick retrieval and comparison • Robust in-app help via information buttons, getting started guide, glossary, and links to additional resources [ Interactive Results ] • Summary - a table of life expectancy ages with their most profitable starting ages for benefits. Rows can be expanded to show your estimated lifetime net income for every life expectancy age. The lifetime net income rows can be tapped to highlight the corresponding cell in the Spreadsheet. • Spreadsheet - detailed spreadsheet format showing your estimated lifetime net income for all Social Security starting ages and life expectancy ages. Each lifetime net income cell can be tapped to show more detailed information. The differences in lifetime net income amounts can be easily examined for all benefit starting ages. • Graph - calculation results displayed as lines depicting estimated lifetime net income for each Social Security starting age. Clearly illustrates the differences in lifetime net income for all benefit starting ages. Any starting age line can be toggled on or off. Tapping a point on the graph will display more detailed information. Supports zooming to show increased granularity. [ Disclaimer ] We have carefully followed the benefit rules from the Social Security Administration and have tested to ensure that our calculations are as accurate as possible. However, since we are not affiliated with the SSA, this app is only intended to be used for reference. Before making a retirement decision we strongly recommend reviewing SSA.gov and other resources for more information. (The app links to several useful resources in Help > Additional Resources.) Also please be aware that this app currently does not calculate spousal benefits or survivor benefits. If you would like us to add this functionality or have any other ideas to improve the app please let us know. [ Credits ] • App Design / Development - Denton Kollar • Original Concept / Consulting - Paul Cichocki

About

Willby

Features
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Make your will tonight - on your iPhone, in plain English, with nothing leaving your device. Most Australians put off their will for years. It feels expensive, complicated, and a little grim. Willby makes it calm: answer guided questions for about 20 minutes and watch your will take shape as you go. Preview it free. Pay once - from $49 - only when you're ready to export. PRIVATE BY DESIGN Your will names your family, your assets and your wishes. That's nobody's business but yours. • 100% on-device - no account, no cloud, no server. Your answers never leave your iPhone. • We couldn't read your will if we wanted to. • No tracking, no ads, and nothing to sign up for. The wizard runs entirely on your device. BUILT FOR AUSTRALIAN LAW • State-aware wording, witnessing rules and signing guidance for every state and territory. • Plain English at every step - clear explanations, no legalese. • Guided to the finish: print, then sign with two witnesses using the step-by-step checklist and shareable witness kit. • A one-page brief for each executor, so the people you trust know exactly what to do. • Free estate-planning tips built in - useful before you pay a cent. HONEST, ONE-TIME PRICING Know the full price before you start — and pay nothing until your will is ready. • Simple Will ($49 one-time) - beneficiaries, executors, personal items and witnesses, exported as a clean, signature-ready PDF. • Complete Estate ($59 one-time) - everything in Simple, plus guardians for your children, real property, shares & investments, and contingent trusts. • Statutory Declaration ($19) and Advance Care Directive ($29) - optional documents, also one-time. Yours forever. No subscription required. No appointments, no waiting weeks, no solicitor bill that runs into the hundreds. HOW IT WORKS 1. Answer guided questions about your wishes — about 20 minutes. 2. Preview your document free, updating live as you edit. 3. Pay once, export a watermark-free PDF, then print and sign it with two witnesses. Willby walks you through making it official. KEEP IT CURRENT — WILLBYONE (OPTIONAL) Life changes — marriages, babies, homes, law reform. WillbyOne Yearly ($19.99/year, auto-renewing) adds unlimited edits and law-change alerts so your documents keep pace with your life. Entirely optional — your will remains yours forever without it. Payment is charged to your Apple ID account. The subscription renews automatically unless cancelled at least 24 hours before the end of the current period; manage or cancel anytime in your App Store account settings. A NOTE ON TRUST We'll be straight with you: Willby is a self-help tool, not a law firm, and does not provide legal advice. Your will becomes legally effective when it is signed and witnessed correctly under your state's law — we guide you through that carefully, and we recommend having your documents reviewed by an Australian legal practitioner, especially for complex estates. Your will. Your data. Your peace of mind. Questions? support@willby.com.au - a real person reads every message. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.willby.com.au/privacy

Screenshots

Social Security Calculator4 screens
Willby4 screens

Verdict

The call

The clearest difference is price: Willby at Free against Social Security Calculator's $0.99. Social Security Calculator's advantage is in-app purchases (none vs 6) and update cadence (every 6 days vs every 5 weeks). On ads 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

Willby is free to download; Social Security Calculator costs $0.99 up front. Willby sells 6 in-app purchases, starting at $12.99 per year. Social Security Calculator asks for nothing beyond the download.

UpkeepUpdate frequency

Social Security Calculator ships an update every 6 days, Willby every 5 weeks. Both last shipped on October 25, 2026.

Scorecard5 real differences · 6 level
Social Security Calculator versus Willby: the parameters behind the verdict, then further details
ParameterSocial Security CalculatorWillby
Price$0.99Free — better
Rating4.1 (8 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings8 — better—
Update frequencyEvery 6 days — betterEvery 5 weeks
AdsNoNo
In-app purchasesNo — betterYes
MonetizationPaid—
Best chart rank#184 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS11.4 — better17.0
Further details — not scored
Size10 MB6 MB
Age rating4+4+
DeveloperDenton KollarBig Screen Entertainment Pty Ltd

In-app purchases

None

Social Security Calculator

No in-app purchases

6 purchases

Willby

Subscriptions1
  • WillbyOne Subscription$12.991 Year
One-time5
  • Add Estate Sections$10.00
  • Willby Statutory Declaration$19.99
  • Willby Statutory Declaration$29.99
Show 2 more
  • Willby Simple Will$49.99
  • Willby Complete Estate$59.99

Questions

Is Social Security Calculator free?
Social Security Calculator costs $0.99, with no in-app purchases.
Is Willby free?
Willby is free to download, with in-app purchases available.
Do Social Security Calculator or Willby have ads?
Neither Social Security Calculator nor Willby shows ads.
Which is updated more often, Social Security Calculator or Willby?
Social Security Calculator ships an update every 6 days, and Willby every 5 weeks. Most recently, Social Security Calculator was updated on October 25, 2026 and Willby on October 25, 2026.

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