If your priority is **uptime and reliability** in India in 2026, there is no publicly audited “99.99% uptime leaderboard” for retail brokers. The best approach is to look at outage history, exchange-reported technical glitches, and operational reputation. ### Current assessment (2026) | App | Reliability reputation | Notes | |------|------|------| | Zerodha | Very good | Largest serious-investor user base, but has experienced some high-profile outages during volatile market periods. | | Upstox | Good | Generally competitive execution and fewer widely reported outages than Zerodha in recent years, though not outage-free. NSE records show reported technical glitches in FY 2026–27. | | Groww | Good for investors | Strong investing experience, but less commonly chosen by active traders focused on platform robustness and speed. NSE records also show reported glitches. | | Angel One | Good | Large user base and broad product offering, but has also been affected by industry-wide outages. | ### Important context Many recent outages affected **multiple brokers simultaneously** because they depended on shared infrastructure providers. For example, a major Cloudflare incident in December 2025 disrupted Zerodha, Groww, Upstox, and Angel One at the same time. ### For different users - **Long-term investor:** Groww or Zerodha - **Active trader:** Zerodha or Upstox - **Reliability-focused trader:** Keep **two broker accounts**. Even outage trackers recommend having a backup broker because no major platform is immune to downtime. ### My shortlist for uptime/reliability in 2026 1. Zerodha 2. Upstox 3. Groww 4. Angel One If you're primarily an **investor**, I'd lean toward Zerodha or Groww. If you're a **day trader or F&O trader**, I'd lean toward Zerodha with Upstox as a backup account.
Sources cited · 5
- Zerodha's Downtime Bluesinc42.com/features/zerodha-outages-downtime-competition-user-growth
- Technical Glitches reported by Trading Membersnseindia.com/static/trade/technical-glitches-reported-by-trading-members
- Cloudflare Outage Disrupts Trading On Groww, Zerodha, Angel Oneinc42.com/buzz/cloudflare-outage-disrupts-trading-on-groww-zerodha-angel-one
- Cloudflare down: Brief outage hits trading platforms like ...moneycontrol.com/technology/cloudflare-down-outage-hits-trading-platforms-like-zerodha-groww-and-others-article-13712483.html
- Trading App Down? Live Status - DownRightNowdownrightnow.in/trading