
Doji
Doji provides a smart trade-in platform that lets retail stores accept used smartphones as partial payment, increasing sales and average ticket size. The system includes AI-powered device verification, logistics management, and cloud-based reporting, with a per-transaction fee model and no implementation cost for stores.
- Artificial Intelligence
- Logistics & Supply Chain
- Retail Technology
- Software Only
Funding
Funding not disclosed




- mago.capital (opens in a new tab)investor website

- positive.ventures (opens in a new tab)investor website

- raio.vc (opens in a new tab)investor website
Founders
Product
Problem
Retail stores often struggle to offer trade-in programs for used smartphones due to the complexity of device valuation, verification, and logistics. This limits their ability to increase sales and average ticket size, while customers lack convenient ways to use their old devices as payment.
Solution
Doji offers a complete trade-in solution that enables retail stores to accept used smartphones as part of payment for products or services. The platform provides a simple implementation process with training, a two-step device verification system combining seller questionnaires and electronic diagnostics via Phonecheck software and proprietary AI-based cosmetic checks, and handles logistics with weekly or monthly collections. Store managers can track performance through cloud-based reports and data, while buyers can set custom prices for each device model. Sponsors can also participate by offering incentives tied to their services, increasing the value customers receive for their traded devices.
Target Audience
Primary customers are physical retail stores seeking to offer trade-in programs, buyers of used smartphones looking for verified devices, and sponsors wanting to promote services through trade-in incentives.
Features
- Two-step device verification combining seller questionnaires with Phonecheck electronic diagnostics and proprietary AI-based cosmetic assessment
- Cloud-based reporting and data dashboards for store performance tracking
- Flexible logistics with weekly or monthly collections and weekly payments
- Custom pricing tools allowing buyers to define values per model and defect reductions
- Sponsor incentive system that increases device value when customers contract specific services
- No-cost implementation with personalized training for store teams