GoZync 5 makes some substantial speed improvements when pulling records by introducing Perform Script on Server (PSOS). This radically reduces the time it takes to determine which records have changed: this makes the biggest difference in cases where there are a large number of potential records but only some have changed since the last sync.
Here's an example: 100,000 records, 5,500 on this iPad, 100 records changed on the server and pulled down to iPad. 50 fields.
3:20 min (GoZync 4)
32 seconds to pull (GoZync 5)
Other cool changes
• GoZync now only adds one hosted file to your solution (instead of two in GZ4). Opening one less hosted file means version 5 is faster even before the PSOS improvements take effect.
• The script for filtering which records get pulled down to a given user is now in the hosted file so it can be tweaked after you deploy.
• This example file has been "fingerprinted" to GoZync so you can use it indefinitely until you modify its tables or add fields--then you'll need to get a two week demo license or a ProZync License to keep going.
• Upgrade and migration instructions are here.