Update — GridBot 0.1 (21) is now available in TestFlight through the same invitation above. This build fixes a reproduced crash in the portfolio chart after tapping Launch. Thank you to the tester who reported it. Please update, use only the guest Paper demo, build a plan, launch a paper bot, then open Portfolio. Does the app stay open and show the bot and chart? Please send the result through TestFlight feedback, including your iPhone model, iOS version and app build; if anything fails, include the exact message or steps. No deposit, exchange API keys or real-money trading are needed.

Beta update: GridBot build 20 is available through the same TestFlight invitation in the original post. I’m Michael, the project owner. For useful current feedback, please update to build 20 and use only the guest Paper demo: build a grid plan, check the available amount and minimum-budget hints, and try Launch. Tell us what worked, where you got stuck, and what you expected instead; please include the build number and your iPhone/iOS version. No deposit or exchange API keys are needed for this testing round. I’ve opened GridBot Beta on Telegram as an optional place for questions, bug reports and discussion of the next improvements: https://t.me/+fkFAiDdQkNc5ZTk8 Replies here and TestFlight feedback are welcome too. Honest criticism is as useful as praise. Hide personal information in screenshots. Historical backtests do not predict future profit.