Comparison

FERS Calculator vs TSP Pro

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

Head to head
About

FERS Calculator

Estimate your federal retirement annuity with this tool. It calculates your potential pension based on your age, years of service, and your highest three-year average salary. Get a ballpark figure for your FERS retirement.

Highlights
  • Estimate retirement annuity
  • Uses age, years of service, high-3 salary
  • Ballpark estimate
  • FERS specific calculation
Features
Read full description

Federal employees under the Federal Employees Retirement System (FERS) can use this calculator to get a ballpark estimate of their retirement annuity. The computation for the estimated annuity will be based on age, years of service and the high - 3 salary.

About

TSP Pro

This app helps military personnel, government employees, and federal workers precisely track their Thrift Savings Plan (TSP) funds. It offers free retirement estimation tools, detailed fund performance monitoring, and powerful analysis features to optimize retirement planning.

Highlights
  • TSP fund price monitoring
  • Historical performance analytics
  • Contribution allocation tracking
  • Retirement projection calculations
  • Fund performance comparison
  • FERS Retirement Estimator
  • TSP Contribution Calculator
Features
Read full description

TSP Pro: The Ultimate Thrift Savings Plan Tracker See today's TSP share prices the moment you open the app — no account, no login, no waiting. Built for military personnel, government employees, and federal workers who want a faster way to follow their retirement. INSTANT FUND PRICES (FREE, NO LOGIN): - Daily G, F, C, S, I & all Lifecycle fund share prices - Interactive price history charts - Data sourced from official TSP.gov postings FREE RETIREMENT TOOLS: - FERS Retirement Estimator - calculate your federal pension annuity - TSP Contribution Calculator - maximize your agency match - 401(k) & IRA Rollover Guide - should you consolidate into TSP? TRACK YOUR BALANCE (FREE ACCOUNT): - Track contribution allocations across all funds - Personal performance and growth projections - Secure Google and Apple Sign-In POWERFUL ANALYSIS TOOLS (PRO): - Compare fund performance side-by-side - Calculate retirement projections with your actual balance - Analyze how different allocation strategies would have performed - Track your personal rate of return over time TSP Pro costs less per YEAR than most TSP apps charge one time - and every core feature above stays free. DESIGNED FOR SECURITY: - Your data stays private with encrypted storage - No third-party data sharing Perfect for data-driven federal employees planning retirement or anyone serious about optimizing their TSP performance. Not affiliated with the Federal Retirement Thrift Investment Board or any government agency. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

FERS Calculator3 screens
TSP Pro4 screens

Verdict

The call

The clearest difference is rating: TSP Pro at 4.8 against FERS Calculator's 3.7. TSP Pro also leads on update cadence (every 2 months vs every 6 months) and iOS requirement (15.6 vs 17.0). FERS Calculator's advantage is in-app purchases (none vs 2). On price, ratings volume, 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

Both are free to download. TSP Pro sells 2 in-app purchases, starting at $2.99 per month. FERS Calculator asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

TSP Pro holds the better App Store score, 4.8 against 3.7. Both are backed by a comparable volume of ratings — 3 and 8 respectively.

UpkeepUpdate frequency

FERS Calculator ships an update every 6 months, TSP Pro every 2 months. The most recent releases landed on October 15, 2026 and October 24, 2026 respectively.

Scorecard5 real differences · 5 level
FERS Calculator versus TSP Pro: the parameters behind the verdict, then further details
ParameterFERS CalculatorTSP Pro
PriceFreeFree
Rating3.7 (3 ratings)4.8 (8 ratings) — better
Positive reviews0.0% of reviews—
Number of ratings38 — better
Update frequencyEvery 6 monthsEvery 2 months — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.6 — better
Further details — not scored
Size0 MB26 MB
Age rating4+4+
DeveloperGabriel RulivaVikorus, LLC

Customer experience

FERS Calculator

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

TSP Pro

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

FERS Calculator

No in-app purchases

2 purchases

TSP Pro

Subscriptions2
  • TSP Pro Monthly$2.991 Month
  • TSP Pro Annual$14.991 Year

Questions

Is FERS Calculator free?
FERS Calculator is free to download, with no in-app purchases.
Is TSP Pro free?
TSP Pro is free to download, with in-app purchases available.
Which has better reviews, FERS Calculator or TSP Pro?
TSP Pro is rated higher. FERS Calculator averages 3.7 out of 5 from 3 ratings, while TSP Pro averages 4.8 from 8 ratings.
Do FERS Calculator or TSP Pro have ads?
Neither FERS Calculator nor TSP Pro shows ads.
Which is updated more often, FERS Calculator or TSP Pro?
FERS Calculator ships an update every 6 months, and TSP Pro every 2 months. Most recently, FERS Calculator was updated on October 15, 2026 and TSP Pro on October 24, 2026.

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