This is an obituary written from public records rather than gossip. CastarSDK (IPIDEA) has stopped answering, and the registration and archive trail is the only honest account of it available.
When the lights went out
On 9 September 2026 the name resolved to nothing usable (ENOTFOUND). Three attempts, two protocols, no response.
Archive coverage stops at January 2026, after 12 good captures. The crawler kept visiting. There was nothing left to save.
What it said about itself at the end
As of its last working snapshot in January 2026, the title read "Castar SDK-The most profitable monetization tool for app". Its search snippet read: "Castar SDK can help developers earn passive income. It is integrated into the app in a way that does not disturb users and maximizes the potential for profitability of the application. It is a new type of SDK monetization method."
Preserved copy has one advantage over a live page: it cannot be edited after the fact. What it shows is the promise, not the product.
What they sold
The archive first captured a working page in November 2024.
The public record holds that much. It shows a company that was real and shipping, and nothing about how well.
What the registry shows
The domain was registered on 7 November 2024 through NameCheap, Inc.. That makes the name about 1 years old. Someone renewed it through 7 November 2027 despite the site being gone. Checked against the registry on 23 April 2026.
We stop short of a cause deliberately. The registration and archive trail shows when things stopped and nothing about why, and the difference between those two claims is the difference between a fact and a defamation.
The rest of the graveyard
Others in this market that ended, checked the same way:
- What happened to Piaproxy
- What happened to PremProxy
- What happened to Privbrowser
- What happened to Proo8
- What happened to Proreveal
- What happened to Proxcover
What to do if you were a customer
If you still have money or traffic sitting with them, the realistic options are a chargeback if the payment is recent enough for your card scheme, and a written record of what you paid for. Prepaid balances with a company that has stopped answering are rarely recovered any other way.
Choosing a replacement: weight the terms as heavily as the price. A balance that expires and a large minimum top-up are the two features that turn a shutdown into a real loss. Ours does neither, and residential starts at $0.44 per GB. That is our pitch, and the honest advice underneath it applies whoever you pick.

