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Dell AppSync vs QoreStor comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Jun 3, 2026

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

Dell AppSync
Ranking in Copy Data Management
4th
Average Rating
8.4
Number of Reviews
10
Ranking in other categories
No ranking in other categories
QoreStor
Ranking in Copy Data Management
6th
Average Rating
8.0
Reviews Sentiment
7.2
Number of Reviews
10
Ranking in other categories
Backup and Recovery (53rd), Data Replication (8th), Disk Based Backup Systems (8th), Storage Software (4th), Disaster Recovery (DR) Software (28th), Software Defined Storage (SDS) (19th), File and Object Storage (23rd)
 

Mindshare comparison

As of June 2026, in the Copy Data Management category, the mindshare of Dell AppSync is 15.2%, down from 20.9% compared to the previous year. The mindshare of QoreStor is 7.6%. It is calculated based on PeerSpot user engagement data.
Copy Data Management Mindshare Distribution
ProductMindshare (%)
Dell AppSync15.2%
QoreStor7.6%
Other77.2%
Copy Data Management
 

Featured Reviews

Rhett Waldock - PeerSpot reviewer
Programmer Analyst at Mankato Clinic, Ltd.
Simple to install, reliable, and has good technical support
There were some limitations in the product that prompted us to shift away from it. You could only have one AppSync profile per server to target where the data could be replicated to. There were a few specific feature limitations in terms of flexibility that required the development of an alternative. However, that was the only flaw. In relation to, the replication destinations. We wanted to collect data from multiple systems and then replicate it on a single system. AppSync was based on a one-to-one replication footprint, which was the limitation that we had encountered. We needed to combine several systems into one. That was one of the scenarios provided by the solution. I would like to have the ability to bit the same system with multiple AppSync replications would definitely be beneficial to us. And general flexibility enhancements.
MW
Works at a financial services firm with 11-50 employees
Backup storage has shrunk dramatically with deduplication but still needs stronger security options
The air gap feature is something I'd really like to see in QoreStor. There's no native air gap capability right now, and for security-conscious environments, that's a gap. The configuration export is also limited in QoreStor. If you want to document your setup or migrate configuration to a new instance, it requires more manual work than it should.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"This solution is very helpful and easy to use."
"In few steps you can configure your replicas without using auxiliary scripts."
"It gave us enough time to do the backup for big databases and mount them in a certain location, from there on tapes."
"It has excellent performance and reliability, and with a little more flexibility, it could be nearly perfect."
"The EMC RM is a very useful technology for consistent data replicas for a significant application portfolio like MS SQL, MS Exchange, Oracle DB etc."
"I believe one of the advantages we saw was that the configuration was manageable."
"Simple to use and great product to provide application consistent replica."
"However if you wanted a reliable product to work with new or existing EMC products then I would recommend taking a look at Replication Manager."
"Not having to be onsite to swap tapes on a daily, weekly, or monthly basis, alone, has really paid for its usage through the savings in time."
"If storage costs are a problem, whether on-premises or cloud, QoreStor is worth a serious look."
"Quest QoreStor is very stable compared to our previous solution."
"QoreStor has helped to reduce our backup storage requirements on-premise by at least 90%."
"We need revisions and safe backup so that it could be held up in court, but deduplication and compression are the main features why we have Quest QoreStor. That's where it really shines. I use ZFS and XFS at home, and Quest QoreStor is even better."
"The features we use for the data deduplication are nice because we're able to back up a much larger amount of data, yet it doesn't necessarily take up that much data on the devices."
"I would rate QoreStor a ten out of ten for what it offers for the price."
"It integrates with various backup software solutions, which makes it compatible with existing backup workflows and processes."
 

Cons

"Yes. Periodically I needed to restart the agent on the client side and sometimes on the server side."
"The product needs to be less complex (compatibility, solution enabler etc.)."
"I would like to have the ability to bit the same system with multiple AppSync replications would definitely be beneficial to us. And general flexibility enhancements."
"There were some limitations in the product that prompted us to shift away from it."
"Simplify implementation."
"Mount replica function through EMC RM needs to be faster because when you are using Veritas volumes with mirrors the mount routine is too late (the mount process time is directly proportional the volume size when you are using Veritas Volume Manager (vxvm))."
"It would be helpful if this product has features for transferring to the cloud."
"Each replication manager installation can only handle so many records. If you have over a certain number of bookmarks or snaps, the GUI becomes un-usable."
"They could improve on support a little bit. We have not had to engage their support much, but when we do have issues, it can take longer to get things resolved."
"The importance of support is significant to me. I was working for a service provider, and all of our customers had a Quest or warning. Sometimes the support really underperforms."
"The installation could use improvement. The initial installation was a little touchy and it's not really user-installable. You have to have a connection to support to install."
"The setup of the software is definitely not the easiest thing in the world."
"There can be some kind of monitoring solutions to alert users to issues with the appliance or software, making it easy for customers to monitor their systems in the field."
"Overall, I am happy with this solution, but a way to export configuration settings would be beneficial. After everything is set up and configured, there should be a way to export the configuration. In case something happens to the QoreStor server, and we need to reinstall and configure everything, being able to import the configuration would be helpful. This feature does not currently exist."
"Overall, I am happy with this solution, but a way to export configuration settings would be beneficial."
"The ransomware protection of QoreStor could use improvement."
 

Pricing and Cost Advice

"I believe we paid them on a yearly basis."
"Quest QoreStor's pricing is affordable. We evaluated Veeam, a well-known company for backup solutions, but found their pricing to be quite high. Veeam's price was almost double. For us, Quest QoreStor is very affordable."
"The pricing is good. It is competitive for a managed services provider. I like the ability to pay by the terabyte, allowing for an incremental cost that we and our customers can afford, so the solution grows with the customer."
"Its pricing model is very attractive. You have one price, and you get everything from QoreStor."
"The cost is per terabyte, and overall, the cost was reasonable when compared to some competitors."
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Top Industries

By visitors reading reviews
Financial Services Firm
15%
Computer Software Company
12%
Construction Company
11%
Manufacturing Company
8%
Manufacturing Company
13%
Financial Services Firm
12%
Construction Company
10%
Comms Service Provider
10%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business3
Midsize Enterprise1
Large Enterprise6
By reviewers
Company SizeCount
Small Business7
Midsize Enterprise1
Large Enterprise2
 

Questions from the Community

Ask a question
Earn 20 points
What else besides data replication does QoreStor offer?
Quest QoreStor can be used for multiple things besides data replication. For example, it can be trusted to make a backup of your data. You know that replication and backups are different, right? Re...
How does Quest QoreStore protect your data?
One of our favorite features of Quest QoreStore for data protection isn't the backup, actually, though we're using it actively (maybe just as much as data replication, to be honest). We absolutely ...
How does Quest QoreStore solve repetitive data replicas?
When I first found out about data replication and the many benefits it had, I couldn't help but wonder - what about the copies you don't need? Like it's unavoidable for some of the copies to get da...
 

Also Known As

AppSync, Replication Manager
QoreStor
 

Overview

 

Sample Customers

Getronics
American Airlines, at&t, Bank of America. Barclays, ebay, Ford
Find out what your peers are saying about Dell AppSync vs. QoreStor and other solutions. Updated: June 2026.
900,644 professionals have used our research since 2012.