Contact mover & account sync

Hi all,
This app might help some people. I used it years ago, so I don't know if all parts of the app are accessible now so I'm a bit reluctant to put it in the app directory. It's a very specific usecase, and I haven't got any contacts I can sync to try it out again. I opened the app briefly and it looks similar to when I used it before. The description and the link are below. I've got the app installed on my iPhone 12mini running iOS 17.6.1
"Contact Mover & Account Sync" allows you to quickly and easily sync or move contacts between any pair of iPhone or iPad contact accounts. This app can be used in a number of creative ways. For instance, you can merge your corporate Exchange contacts into your personal local address book or vice versa. Or perhaps you want to sync your Outlook contacts with iCloud. As long as you already have a pair of contact accounts setup on your iPhone/iPad, it doesn't matter if it's an Exchange, Outlook, iCloud, Google, Yahoo, Local, or CardDAV account, "Contact Mover & Account Sync" can sync and move it!

IMPORTANT: If your intent is to sync your Google contacts & groups with your iPhone/iPad, please consider using "Contacts Sync for Google Gmail" at the App Store as it can sync both your contacts and groups.

SYNC & MOVE OPTIONS:
• Sync or move any pair of iPhone/iPad contact accounts including Exchange, Outlook, iCloud, Google, Facebook, Yahoo, Local, & CardDAV
• With a true 2-way sync, you can merge changes you've made to each contact account
• Choose from one of the following sync modes: 2-way sync, 1-way sync, & manual sync
• Choose from one of the following move types: 1-way move & manual move

APPLY FILTERS
• Choose to sync selected groups only
• Choose to ignore new contacts including those without an email or phone

AUTO ADD TO GROUP:
• Automatically add synced contacts to a specified group such as “Modified by Contact Mover”

CONFIRM CHANGES:
• Review each change before the sync/move actually begins
• Easily override changes

SYNC/MOVE HISTORY:
• Monitor the results of the current sync or move, and review the results of the last 100 syncs/moves

SYNCS/MOVES ALL FIELDS:
• Syncs/moves all fields including names, phonetic names, nicknames, email addresses, phone numbers, postal addresses, company names, job titles, departments, birthdays, anniversaries, events, notes, web page addresses, relationships, instant messaging accounts, & social profiles
• Syncs/moves contact photos
• Syncs/moves custom labels & custom fields

AUTOMATIC SYNC/MOVE:
• Automatically syncs/moves contacts in the background 24/7

COMPATIBILITY:
• Compatible with iPhone, iPad, iPod, iOS 15, iOS 16, iOS 17

SUPPORT:
• In the case that you need support, our friendly American customer support team usually answers emails within 4 hours

SUBSCRIPTIONS:
• Contact Mover offers a "Premium" subscription which unlocks all of the premium features in the app, including the ability to sync an unlimited numbers of contacts and to auto sync in the background.
• Without an upgrade, the app will sync no more than 40 contacts, nor will it move more than 10 contacts
• The "Premium" subscription is priced at $3.99 USD and the subscription length is 1 year
• Payment will be charged to iTunes Account at confirmation of purchase
• Subscription automatically renews unless auto-renew is turned off at least 24-hours before the end of the current period
• Account will be charged for renewal within 24-hours prior to the end of the current period, at a cost of $2.99 USD
• Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase
• Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable
https://apps.apple.com/gb/app/contact-mover-account-sync/id582605968