DePlan

DePlan was a Solana-based protocol that aimed to replace flat subscription billing with usage-proportional pricing. The core idea: instead of paying the same monthly fee regardless of whether a user engages with a product once or daily, subscribers deposit their monthly fee into a smart contract and receive a refund based on how much they actually used the service relative to other subscribers. As of mid-2026, DePlan appears to be inactive. The main website returns a 404 error, the protocol's native token trades at a fraction of a cent with negligible volume, and co-founder Sergey Korzhenevich's LinkedIn lists DePlan as a past position.

Problem and Premise

The subscription economy has a utilization mismatch. Consumers routinely pay for SaaS tools, streaming services, and apps they rarely open. DePlan's framing identified two resulting problems: churn pressure for developers, who lose subscribers who feel they aren't extracting value, and subscription fatigue for users, who feel trapped paying full price for partial use. DePlan proposed a middle ground in which users commit to a monthly price but pay only in proportion to how heavily they use the product compared to the rest of the subscriber base.

Core Mechanism

The billing model is relative, not absolute. Each month, every user's usage intensity is measured against the full subscriber pool for that product. The user with the highest server load pays the full monthly subscription rate. A user with zero activity pays nothing. All others fall proportionally between those two extremes based on their share of total usage.

Usage intensity is defined by a configurable set of events that developers specify when they integrate with DePlan — examples given in documentation include uploads, downloads, exports, AI requests, articles read, videos watched, and time spent. This flexibility allows the system to adapt to different product types without prescribing a single metric.

Monthly payments are held in smart contract escrows on Solana. At month's end, refunds are calculated automatically and distributed. Settlement is denominated in USDC.

Developer Integration

DePlan offered two interfaces: DePlan Connect for product owners and deplan.app for end users. The integration process involved registering a product on DePlan Connect (providing a product name, logo, pricing, and linking a dedicated on-chain product wallet), defining the custom usage events relevant to the specific application, and setting up a webhook to receive subscription confirmations.

When a user chose the DePlan payment option at checkout, they were redirected to deplan.app with parameters identifying the developer's organization wallet, a redirect URL, and optional custom data such as internal user identifiers. The product backend would then POST usage events to DePlan's API, providing the organization wallet, user wallet, and event type. Earnings accumulated in the product's on-chain wallet; developers withdrew in USDC, which could be transferred to Decaf Wallet and then converted to fiat via MoneyGram at physical locations.

Product Evolution

DePlan launched in late 2023 with a subscription time marketplace. In the initial version, the platform tracked users' screen time across applications, identified idle subscription hours, and tokenized them on Solana — one token representing one hour of access to a given app. Those tokens were listed for resale on a DePlan marketplace, allowing other users to buy pay-as-you-go access. The per-hour base price was derived by dividing the monthly subscription cost by average monthly usage hours, with adjustments based on supply and demand.

At Solana Breakpoint in Singapore in September 2024, the team announced DePlan 2.0, which pivoted toward subscription aggregation. Under this model, users would tag multiple Solana-native subscriptions throughout the month and consolidate them into a single payment distributed by smart contract at month's end. The documentation that remains live reflects the usage-intensity refund model.

DPLN Token

DePlan issued a native token, DPLN, on Solana. Total supply was approximately 100 million tokens. DPLN reached an all-time high of approximately $1.43 in April 2024. By mid-2026, the token had fallen to a fraction of a cent, with daily trading volume of roughly $23 to $64 — effectively illiquid. Circulating supply was approximately 3 million tokens, with the remaining 97 million representing significant potential overhang. The token traded primarily on Raydium and was tracked by CoinGecko and CoinMarketCap.

The live developer documentation for DePlan's payment protocol made no mention of DPLN; the operational settlement layer used USDC. DPLN appears to have been conceived as a governance and rewards token rather than a medium of exchange within the payment system.

Team and Milestones

DePlan was co-founded by Sergey Korzhenevich (CEO), who previously co-founded Relonch, an AI-powered camera startup. Yuri Motin served as COO and Anton Pashkovskyi as CTO. No institutional investment or VC backing was publicly disclosed.

The project earned early recognition in the Solana ecosystem. DePlan placed fifth in the Consumer Apps track of the Solana Renaissance Hackathon, which drew more than 8,300 participants across 1,071 final projects. The team also won a top demo prize at a HackerHouses event in Dubai, receiving $5,000 USDC and Solana conference tickets. DePlan was listed on the Solana Mobile dApp Store for the Saga phone.

Security

No formal smart contract audit from a named firm appeared in DePlan's documentation or in independent coverage. CoinMarketCap's CertiK integration assigned DePlan a security score of 2.5 out of 10, which falls in the lowest tier.

Status

DePlan is inactive. The main website (deplan.xyz) returns a 404 error. The @DePlan_xyz Twitter account shows no recent posts. Co-founder Sergey Korzhenevich's LinkedIn profile lists DePlan under past experience. No editorial coverage dated 2025 or 2026 was found. The documentation subdomain (docs.deplan.xyz) remains accessible and describes the protocol in present tense, but there is no evidence of ongoing development, active integrations, or a functioning user base. DePlan's last notable public activity was the DePlan 2.0 announcement at Solana Breakpoint in September 2024.