# FERS Calculator vs Reserve Drill Pay Tracker

The clearest difference is in-app purchases: FERS Calculator at none against Reserve Drill Pay Tracker's 2. FERS Calculator also leads on ratings volume (3 vs 1). Reserve Drill Pay Tracker's advantage is update cadence (every 2 weeks vs every 6 months) and rating (4.0 vs 3.7). On price, ads and device support there is nothing between them.

Both are free to download. Reserve Drill Pay Tracker sells 2 in-app purchases, starting at $14.99 per year. FERS Calculator asks for nothing beyond the download.

Reserve Drill Pay Tracker holds the better App Store score, 4.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

FERS Calculator ships an update every 6 months, Reserve Drill Pay Tracker every 2 weeks. The most recent releases landed on October 15, 2026 and October 28, 2026 respectively.

## The numbers

| Metric | FERS Calculator | Reserve Drill Pay Tracker |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.7 (3 ratings)](https://appshunter.io/ios/app/fers-calculator/id1484437870/reviews) | **[4.0 (1 ratings)](https://appshunter.io/ios/app/reserve-drill-pay-tracker/id6768798550/reviews)** |
| Number of ratings | **3** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 weeks** |
| Monetization | **Free** | Freemium |
| Size | 0 MB | 25 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Gabriel Ruliva](https://appshunter.io/developer/1484437869) | [Vikorus, LLC](https://appshunter.io/developer/1780116957) |

## What reviewers say

### FERS Calculator

[App page](https://appshunter.io/ios/app/fers-calculator/id1484437870)

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:** macOS Compatibility

**In-app purchases:** none


### Reserve Drill Pay Tracker

[App page](https://appshunter.io/ios/app/reserve-drill-pay-tracker/id6768798550)

This app helps US military reservists and National Guard members meticulously track their drill and annual training pay. It functions as a professional ledger, calculating exact pay against official tables and forecasting year-end income. Users can log various pay entitlements and export data for financial purposes.

**Highlights:** Log drill weekends and annual training days, Track special pays like jump, flight, and HDIP, Forecast year-to-date reserve income, View pay against official DFAS tables, Export data to CSV for taxes and audits, Offline functionality, No account or DoD login required

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Annual | $14.99 | per year |
| Lifetime | $29.99 | one-time |


## Frequently asked questions

### Is FERS Calculator free?

FERS Calculator is free to download, with no in-app purchases.

### Is Reserve Drill Pay Tracker free?

Reserve Drill Pay Tracker is free to download, with in-app purchases available.

### Which has better reviews, FERS Calculator or Reserve Drill Pay Tracker?

Reserve Drill Pay Tracker is rated higher. FERS Calculator averages 3.7 out of 5 from 3 ratings, while Reserve Drill Pay Tracker averages 4.0 from 1 ratings.

### Do FERS Calculator or Reserve Drill Pay Tracker have ads?

Neither FERS Calculator nor Reserve Drill Pay Tracker shows ads.

### Which is updated more often, FERS Calculator or Reserve Drill Pay Tracker?

FERS Calculator ships an update every 6 months, and Reserve Drill Pay Tracker every 2 weeks. Most recently, FERS Calculator was updated on October 15, 2026 and Reserve Drill Pay Tracker on October 28, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*