Post Msn Calc vs GHA DISCOVERY
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Post Msn Calc
Calculate the duration of your post-mission downtime. Input your departure and return dates and times to determine when your Post Mission period expires. A simple tool for tracking your time off.
- Post-mission downtime calculation
- Input departure date/time
- Input return date/time
- Calculates Post Mission expiration
Read full descriptionHide full description
This app calculates how long you can sit at home after a mission. Simply input your departure and return date/time and this calculator will spit out when your Post Mission runs out. Hope you find it helpful.
GHA DISCOVERY
Discover exclusive hotel rates, dining, spa, and local offers at over 800 hotels worldwide. Earn and spend rewards currency on your next visit. Explore curated experiences and enjoy flexible paths to elite status with four membership tiers.
- Browse and book member rates
- Explore stay offers and promotions
- Earn and spend DISCOVERY Dollars
- Access local dining and spa deals
- Purchase curated experiences
- Flexible paths to elite status
Read full descriptionHide full description
NEW PROGRAMME FEATURES This updated, more user-friendly app reflects the all-new GHA DISCOVERY programme and refreshed branding. EXPANDED BENEFITS AND REWARDS Now, browse and book Member Rates of 10% or more off rooms at participating hotels worldwide. Explore Stay Offers, Experiences, Local Offers and Promotions available exclusively for members at 800+ hotels across 100 countries. Eligible purchases now earn you DISCOVERY Dollars (D$), our generous rewards currency. You can spend your D$ towards your total bill on your next visit. LIVE LOCAL OFFERINGS FOR EVERY MEMBER Access the best our hotels have to offer, with or without a stay. Find incredible offers on dining, spa, pool, golf and more at hotels nearby. Or take advantage of our curated Experiences, now available for purchase by all members. MORE FLEXIBLE PATHS TO ELITE STATUS There are now four membership tiers, so it’s easier to reach elite status. You also have a choice of three flexible paths to upgrade your status: nights/stays, eligible purchases or number of brands stayed.
Screenshots
Verdict
The clearest difference is review sentiment: Post Msn Calc at 100% against GHA DISCOVERY's 40%. Post Msn Calc also leads on chart position (#74 vs unranked) and iOS requirement (8.0 vs 13.0). GHA DISCOVERY's advantage is price (Free vs $0.99) and rating (4.8 vs 4.0). On update cadence, 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
GHA DISCOVERY is free to download; Post Msn Calc costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
GHA DISCOVERY holds the better App Store score, 4.8 against 4.0. That said, the two scores are not equally well evidenced: GHA DISCOVERY has 1.6K ratings behind it against 2, so its average is the more settled of the two. Written reviews complicate that: 100% of Post Msn Calc's written reviews are positive against 40% of GHA DISCOVERY's, so the app with the better star average is not the one people write more warmly about.
Post Msn Calc ships an update monthly, GHA DISCOVERY every 5 weeks. Both last shipped on October 24, 2026.
| Parameter | Post Msn Calc | GHA DISCOVERY |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 4.0 (2 ratings) | 4.8 (1.6K ratings) — better |
| Positive reviews | 100.0% of reviews — better | 39.6% of reviews |
| Number of ratings | 2 | 1.6K — better |
| Update frequency | Monthly — better | Every 5 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Free with in-app purchases — better |
| Best chart rank | #74 — better | — |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 8.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 0 MB | 126 MB |
| Age rating | 4+ | 4+ |
| Developer | John Robbins | Global Hotel Alliance |
Customer experience
Post Msn Calc
GHA DISCOVERY
Bugs and requests
Post Msn Calc
Not enough reviews yet to summarise bugs or requests.
GHA DISCOVERY
Reported bugs
4 issues- Forced app updates causing issues
- Login and registration problems
- Booking and reservation tracking not working as expected
- Compatibility problems with older devices and operating systems
Requested features
5 requests- Add support for multiple currencies
- Improve integration with hotel systems to show bookings
- Provide better customer service and support
- Add ability to add membership card to digital wallets
- Implement dark mode and other accessibility features
In-app purchases
Post Msn Calc
No in-app purchases
GHA DISCOVERY
No in-app purchases
Questions
Is Post Msn Calc free?
Is GHA DISCOVERY free?
Which has better reviews, Post Msn Calc or GHA DISCOVERY?
Do Post Msn Calc or GHA DISCOVERY have ads?
Which is updated more often, Post Msn Calc or GHA DISCOVERY?
Other comparisons
