Dimension scores are derived from public data and fields; weighted into the composite. Reference only.
DEV91 is not a cryptocurrency exchange, wallet, or DeFi protocol in the traditional sense. Instead, it is a personal/freelance-style remote development service page. It positions itself as a full-stack developer and MT4/MT5 algorithmic trading specialist, offering development of web applications, backend systems, APIs, as well as MQL4/MQL5 Expert Advisors, indicators, and trading systems. For cryptocurrency users, it is closer to a “trading tool and automated strategy development service” than an asset trading or custody platform.
The page highlights services such as MT4/MT5 EA development, custom indicators, risk management, news filters, trailing stops, multi-symbol logic, backtesting validation, and MT4-to-MT5 migration. These capabilities are relevant to forex, CFDs, or trading environments connected to MetaTrader, but the page does not list supported cryptocurrencies, trading pairs, exchange APIs, or on-chain protocols. As such, it cannot be assumed to directly support trading in BTC, ETH, or other crypto assets, nor should it be viewed as offering spot trading, derivatives, leverage, or custody services.
Its engagement model is described as remote and contract-based, starting with a clearly defined project scope. However, it does not disclose fixed pricing, hourly rates, packages, after-sales support, or refund policies. On security, the page emphasizes production-grade work, clean code, risk management systems, and backtesting validation, but these relate to software engineering and strategy risk control; there is no mention of cold wallets, insurance, fund segregation, audits, or custody security. On compliance, there is also no information about company registration, financial licenses, KYC/AML, or regulatory oversight.
Its strengths are a tech stack covering Laravel, Next.js, Node.js, databases, and MQL4/MQL5, making it suitable for traders and small teams that need to turn trading ideas into EAs, indicators, admin dashboards, or APIs. It claims 50+ projects and 5+ years of experience, with a response time within 24 hours and contact options including Telegram. The drawbacks are limited transparency, with a lack of detailed case studies, pricing, sample contracts, acceptance criteria, and after-sales guarantees. It also does not address core crypto platform concerns such as account opening, deposits and withdrawals, KYC, market depth, or fund security.
The page does not provide information about access from mainland China, payment methods, or localized support, so its accessibility from China can only be rated as unknown. If the user’s goal is to buy and sell cryptocurrencies, they should prioritize platforms or self-custody wallets with clear compliance, risk control, and deposit/withdrawal information. If the goal is to develop automated trading tools, DEV91 can be considered as a candidate developer, but before working together users should confirm the requirements document, quotation, source code ownership, backtesting reports, maintenance period, and whether it supports the target exchange or broker environment.
⚠ This review is compiled from public sources and does not constitute a purchase recommendation. Verify all facts on the vendor's official site. Verify on dev91.com official site.
dev91.com is an Unknown Crypto provider. TG4G tracks its product information, an overall rating of 6.0/10, and a China-accessibility score of China direct-connect friendly. Click "Visit Official Site" to reach dev91.com directly.