FERS Calculator vs ThriftTracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- Estimate retirement annuity
- Uses age, years of service, high-3 salary
- Ballpark estimate
- FERS specific calculation
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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.
ThriftTracker
Visualize your federal retirement holdings with simple, beautiful widgets. Track fund prices, portfolio value, and retirement dates effortlessly. Offers Siri integration and privacy-focused design with no logins required.
- Historical fund prices and charts
- Home Screen and StandBy widgets
- Total portfolio value widget
- Retirement date widget
- Zero logins, zero personal data collected
- Siri integration for quick queries
- iCloud synchronization
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ThriftTracker - Your TSP, Beautifully Simple! Finally, visualize federal retirement holdings the way it should look on iPhone, iPad, and Mac. • Current and historical fund prices and charts for the G, F, C, S, I, L Income Funds and other Lifecycle Funds (2075, 2070, 2065, 2060, 2055, 2050, 2045, 2040, 2035, and 2030). • Widgets for any fund on your Home Screen or StandBy mode. • A widget for your total portfolio value. • A widget for your retirement date. • Zero logins, zero personal data collected. • On supported devices with Apple Intelligence, ThriftTracker offers textual summaries of historical fund data using built-in, on-device processing. • Hands-free with Siri -- just say "Hey Siri, what's the price of the G Fund in ThriftTracker?" or "Hey Siri, when's my retirement date in ThriftTracker?" for a quick response. • Perfect for active federal employees and retirees. Stop opening your other websites. Stop copying numbers into spreadsheets. Stop wondering "how is my TSP doing?" Just glance at your widgets -- wherever your decide to place them! WE THINK YOU'LL LOVE: • Simple and thoughtful widgets to help you focus on what's important. You don't need to be a finance pro! • Small, medium, and large widgets for your fund charts, retirement date, and portfolio value. • Effortless synchronization of your portfolio snapshots with iCloud. • Looks great on iPhone, iPad, and Mac. • No ads, no tracking, no upsells -- just a clean one-time purchase. PRIVACY FIRST: • No account or sign-in is required (or even offered). • All fund price data is sourced from publicly available third-party information and your information is not shared or transmitted by ThriftTracker. ACCESSIBILITY IS BUILT IN: • We put special emphasis on designing a user interface that scales for different screen and font sizes • Beautiful light and dark modes automatically adapt to your device settings IMPORTANT: ThriftTracker is an independent, unofficial app and is not affiliated with, endorsed by, sponsored by, or associated with the Federal Retirement Thrift Investment Board (FRTIB), the Thrift Savings Plan (TSP), or any U.S. government agency. No login nor personal information is ever required or collected. As such, the value of your portfolio is estimated using the data that you provide in the app (if you choose to do so). All fund price data is sourced from publicly available third-party information and is provided for informational purposes only. ThriftTracker does not guarantee the accuracy, completeness, availability, or timeliness of the information displayed. Information is provided "as is" without warranty of any kind. ThriftTracker does not provide investment, financial, legal, or tax advice. All investment decisions remain the sole responsibility of the user. Always consult official sources and your own financial professional. Textual summaries are generated using Apple Intelligence features on compatible devices. This app integrates official APIs and does not share data with third parties. Voice features use Apple's Siri and "Hey Siri" activation on compatible devices. This app integrates official SiriKit APIs for hands-free access to the app's data -- no data is shared with Apple or third parties. TERMS OF USE (END USER LICENSE AGREEMENT [EULA]): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is price: FERS Calculator at Free against ThriftTracker's $1.99. FERS Calculator also leads on ratings volume (3 vs 1) and iOS requirement (17.0 vs 26.0). ThriftTracker's advantage is rating (5.0 vs 3.7). On ads, in-app purchases 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
FERS Calculator is free to download; ThriftTracker costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.
ThriftTracker holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively.
| Parameter | FERS Calculator | ThriftTracker |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 3.7 (3 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 3 — better | 1 |
| Update frequency | Every 6 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 0 MB | 24 MB |
| Age rating | 4+ | 4+ |
| Developer | Gabriel Ruliva | Bit Prepper, LLC |
Customer experience
FERS Calculator
ThriftTracker
In-app purchases
FERS Calculator
No in-app purchases
ThriftTracker
No in-app purchases
Questions
Is FERS Calculator free?
Is ThriftTracker free?
Which has better reviews, FERS Calculator or ThriftTracker?
Do FERS Calculator or ThriftTracker have ads?
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