PostalCal vs Mi LUMA
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
PostalCal
This calendar app is designed for postal employees with rotating days off. It displays paydays and postal holidays, eliminating the need for annual paper calendars. Optional in-app purchases allow for color customization and adding personal events.
- Rotating days off calendar
- Payday display
- Postal observed holidays
- Customizable color rotations
- Add personal events
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Postal Employee Day Off Calendar Are you a postal employee with rotating days off? This app is for you. Postal Employee Day Off Calendar is a simple, purpose-built calendar for USPS postal workers and their families. It clearly shows every pay day and postal‑observed holiday so you always know what’s coming. Instead of buying a new paper color calendar every year, make a one‑time purchase and keep everything on your phone. Want more control? Unlock two optional upgrades: Customize calendar colors to match your own rotation. Add your own events directly to the calendar.
Mi LUMA
Manage your LUMA Energy account conveniently from your mobile device. View your balance, access bills, make payments, and report outages. Enjoy quick sign-in options and 24/7 access to your account information.
- Account registration
- View current balance and due dates
- Download bills in PDF
- Pay bills via credit card or bank account
- 12-month bill and payment history
- Outage reporting and viewing
- Quick sign-in options (Face Unlock, fingerprint, PIN)
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Mi LUMA is LUMA Energy’s new customer app. You can register with a residential or commercial account, the last 4 digits of the social security or employer identification number on the account, and a valid email. However, if you already registered for Mi LUMA web, our online customer portal, there is no need to register again in the app, you can use the same username and password to sign in. After your first sign in using your username and password, you can choose to use Face Unlock, your fingerprint, PIN or keyboard pattern for future sign-ins, making signing into Mi LUMA easy and quick. Once signed in, you will see the Dashboard with the current balance of the electric service account your registered. With a single tap, view the Account screen, with all your current account information, including the total amount due and payment due date. View and download your current bill in PDF format. Pay your bill using either a credit card or a bank account. Payments made through Mi LUMA app are credited the same day. The Mi LUMA app also provides a 12-month history of bills and payments, outage viewing and reporting capabilities, and an extensive set of frequently asked questions (FAQs) to help you in the transition to LUMA Energy. Simply download the free app and begin enjoying the convenience of doing all of this from anywhere 24x7.
Screenshots
Verdict
The clearest difference is review sentiment: PostalCal at 72% against Mi LUMA's 11%. PostalCal also leads on rating (5.0 vs 2.1) and chart position (#157 vs unranked). Mi LUMA's advantage is price (Free vs $5.99) and in-app purchases (none vs 2). 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
Mi LUMA is free to download; PostalCal costs $5.99 up front. PostalCal sells 2 one-off in-app purchases. Mi LUMA asks for nothing beyond the download.
PostalCal holds the better App Store score, 5.0 against 2.1. That said, the two scores are not equally well evidenced: Mi LUMA has 951 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 72% of PostalCal's written reviews are positive against 11% of Mi LUMA's.
PostalCal ships an update every 9 months, Mi LUMA every 2 months. The most recent releases landed on October 29, 2026 and October 25, 2026 respectively.
| Parameter | PostalCal | Mi LUMA |
|---|---|---|
| Price | $5.99 | Free — better |
| Rating | 5.0 (4 ratings) — better | 2.1 (951 ratings) |
| Positive reviews | 72.2% of reviews — better | 11.5% of reviews |
| Number of ratings | 4 | 951 — better |
| Update frequency | Every 9 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Best chart rank | #157 — better | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 26.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 1 MB | 96 MB |
| Age rating | 4+ | 4+ |
| Developer | Andrew Franco | Luma Energy ServCo, LLC |
Customer experience
PostalCal
Mi LUMA
User reviews
PostalCal
From 4 App Store ratingsWhat we love
- 👍 Easy to use calendar
- 🗓️ Helpful for planning
- 👨👩👧👦 Simplifies family scheduling
- 🎨 Customizable colors
- ✅ Great functionality
Room to improve
- 🐛 Crashing issues
- 📅 Outdated information
- ⏳ Lacks future year updates
- ❌ Re-purchase required
- 🐛 App not opening
Mi LUMA
From 951 App Store ratingsWhat we love
- 🚀 Easy to use
- 💡 Useful features like outage reporting
- 👍 Improving with updates
Room to improve
- 🐛 Frequent crashes and login issues
- 👎 Lacks essential functionality (PDF bills, outage history)
- 🔒 Security and account management problems
Bugs and requests
PostalCal
Reported bugs
15 issues- Re-purchase required after payment
- No dates after 11th day
- No 10 shows up
- Last weeks of months have dots instead of dates
- Month & Year not displayed
Show 10 moreShow fewer
- Juneteenth holiday not updated
- Memorial Day date incorrect (May 24th instead of 31st)
- Graphic issues on iPad
- App crashes on opening
- App won't open after iOS update
- App crashes on current month
- Error on August 23rd (should be black, not blue)
- Pay period info missing
- Cannot swipe back
- App kicks out when selecting a month
Requested features
13 requests- Sync with other calendars (iCal)
- Add custom events option
- Ability to add notes
- Integrate weather
- Add mail volumes manually
Show 8 moreShow fewer
- See a couple years ahead
- Update for future years
- Add events to days
- Link days off with iOS calendar
- Ability to shut off unwanted colors
- Mark days taken off (s/l or a/l)
- Add non-postal holidays
- Option to add notes for a fee
Mi LUMA
Reported bugs
3 issues- App fails to load or log in consistently
- Issues with account registration and management
- Unreliable outage reporting functionality
Requested features
3 requests- Add auto-payment option
- Improve app stability and login process
- Provide detailed outage history and analytics
In-app purchases
PostalCal
- Custom Calendar Colors$3.99
- Calendar Events$4.99
Mi LUMA
No in-app purchases
Questions
Is PostalCal free?
Is Mi LUMA free?
Which has better reviews, PostalCal or Mi LUMA?
Do PostalCal or Mi LUMA have ads?
Which is updated more often, PostalCal or Mi LUMA?
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