Original Wheelio spin pop‑ups

Karl has an attitude problem. I merely wanted to change the background segments of the wheel to my own images. Karl said this is not possible, the file sizes being uploaded was causing problems and slowing the app down so it was disabled. I merely suggested that a maximum file size limit be added to prevent this from happening. Karl said it cannot be done we get 100s of people asking. I responded saying if so many people want these features why do you not cater to these people? He told me that since I know so much about what his app needs why dont i build one myself!! Serious attitude problem. Wow.

Worst app ever. Never pop up. Cancel subscription and still being charged. I have 2 charges , reach out too customer support and they claim not being charged. Not happy. Need find another platform for online store. This is not false. I have proof of charges on Shopify. It shows billing date and charges

***UPDATE***
After the snarky response from the developer, I decided to update my review. I would also like to point out we did open support tickets and brought these issues to the attention of the app developer first, but received a similar response from them. The app works but is severely lacking for businesses that care anything about metrics. It also can create a nightmare for coupon management.
We installed the app across 2 stores and experienced the same issues on both. While technically the app did it's job in email capture, there are better options available.
Issues:
1) You cannot measure true campaign performance. The app will only track overall number of coupons provided and how many were used along with dollar value of those orders. You can't measure down to the "slice" level. So you won't be able to answer simple questions like: How many 15% off codes were provided? How many were used? How much revenue did that generate? Did the 10% off codes do better or worse?
***Response to developer*** My issue is based on a company that measures sales performance. If you have companies that DO NOT care whether a 10% or 15% off coupon works better, that is on them, but most companies need this whether they report it to you or not. Being able to see something like 1000 10% off codes were provided but only 2% were used vs 500 15% off codes were provided but 10% were used is vital information when running discounts. 2) Each dynamic code is created as a separate coupon code in Shopify. Several other companies will create a parent coupon listing (ie Save 10% OFF) and the dynamic codes will be compiled under it. This helps keep your discount section from becoming overly cluttered. 3) Codes are not created with an expiration date, leaving them open liabilities. When you create a campaign in the app, you would think the codes created within that campaign would have the same expiration date, but they do not. We ran a campaign for a few weeks around Nov/Dec 2020 and now have to go through THOUSANDS of coupon codes and manually disable them.
***Response to developer***
Setting an expiration date on dynamic codes wasn't an option. We set expiration dates on every code we ever create because we consider them open liabilities. 4) URL targeting can't utilize wildcards which is an issue if you have marketing variables in your URL (ie from emails or other campaigns). The URL had to be an exact match.
***Response to developer*** My issue here was based on a response from your team on a ticket we opened, so no, your "contains" variable did not work on either of our sites so we had to use the on page load option.

The app has great potential, however there were 2 main issues that lead to me uninstalling the app:

1) App allows fake email addresses to be used.
After having people spin the wheel multiple times and tell us they had won one prize then claimed a different one, we investigated. It turned out people were spinning repeatedly using variations of emails. I then checked this, as we had some people use around 20 variations, and used a fake version of my work email, which allowed the wheel to spin. These emails were being collected and skewing the results, meaning we were collecting very little relevant data in comparison to the data that Wheelio boasts about.

2) There is no limit to how many times an email can be submitted. Again, we had one client use their email 18 times to win the prize they wanted. This was done repeatedly within a 10 min period, despite us setting the app to not show for 14 days after it had been spun. Again, I wanted to make sure, so used my own email multiple times to make sure this is the case.

All in all, Wheelio have an app that could be great. But due to the issues, it invalidates all their stats, and lost us money on giveaways and discounts that slipped through the net before we discovered the issues.

When we discovered this App, we thought it was really genius and had really high hopes!
Unfortunately, we had to quickly contact support regarding a horrifying bug with the software on iPhones: on any version of iOS, its blocks completely the entire site and won't let a user insert its email because of a faulty input.
When we contacted support first, they told us that it was only on a specific version on iOS. After checking on 5 other iPhones, including an iPhone X, I can tell you that this problem exists on EVERY iPhone and iOS version we tested.
We expect them to correct this problem, but in the meantime we can't afford to block 80% of our mobile-incoming traffic.