# 2025 ColorCal — USPS NALC APWU sdo calendar

> USPS NALC APWU sdo calendar (iPhone/iPad app by Preston Fung.)

- Source: https://appshunter.io/ios/app/2025-colorcal/id6670420847 (this page in markdown: same URL + `.md`)
- Developer: [Preston Fung](https://appshunter.io/developer/1528761745)
- Category: Productivity
- Price: $1.99
- Age rating: 4+
- Requires: iOS 11.0 · 28 MB
- Languages: English
- Released: 2024-09-05
- Data updated: 2026-08-16
- User reviews in markdown: https://appshunter.io/ios/app/2025-colorcal/id6670420847/reviews.md

## What is 2025 ColorCal?

2025 ColorCal

Alpha / Color coded day-off calendar for Sunday/Rotating day off schedules used by many USPS letter carriers and clerks

IMPORTANT:
This calendar covers a very commonly used Color/Alpha scheme.  
If your Color/Alpha scheme does not match the app, you can still use it by matching your current SDO to the corresponding color.

Color and Alpha (A-F) Coded calendar for USPS Letter
Carriers and Clerks using Sunday/Rotating Scheduled Day Off (SDO) calendar

This calendar spans October 2024 (USPS 2025 Q1 ) thru January 2026
(USPS 2026 Q1 end)


NOTE: The SDO scheme depicted in this calendar, matches commonly
available printed calendars. FYI: There are too many color schemes to
possibly address them all. 

For security, there is no online calendar integration. It simply
displays your scheduled day off, holidays and paydays.
There's no SPAM, Ads, pop-ups, nag screens, push notifications,
in-app purchases or collection of data. 

The App does not collect, save or ask for ANY information. 

It works without connectivity.

WARNING: ONLY get the app from the Apple APP
store.  Other sources may provide unsafe and/or altered (hacked) apps
whose safety cannot be verified.


The calendar is believed to be correct. By using it you agree to
hold me harmless in the event of errors or omissions

## Chart rankings

- #196 in Top Paid · Productivity (US App Store)


## Version history (last 1 release)

### 1.0 — 2024-09-05

No release notes.

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## More apps by Preston Fung

- [2022 ColorCal](https://appshunter.io/ios/app/2022-colorcal/id1583296283)
- [2023 ColorCal USPS calendar](https://appshunter.io/ios/app/2023-colorcal-usps-calendar/id1642858325)
- [Notey by FourCatsApp](https://appshunter.io/ios/app/notey-by-fourcatsapp/id6444195507)
- [2024 ColorCal by FourCatsApp](https://appshunter.io/ios/app/2024-colorcal-by-fourcatsapp/id6466098499)
- [2026 USPS ColorCal Calendar](https://appshunter.io/ios/app/2026-usps-colorcal-calendar/id6752637004)

All apps by Preston Fung: https://appshunter.io/developer/1528761745

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-16.*