Before buying a Telegram signal copier, compare more than price. Decision grid for demanding traders in 2026.
1. User mode vs invited bot
Prefer tools that read channels via your account when admins ban bots. Check how sessions are stored (encryption, revoke).
2. Relay + execution
Some tools only do Discord; others add MT4/MT5. SignalByTeDi combines relay (Starter+) and MetaAPI copy (Premium).
3. Parser quality
Multilingual signals, symbol aliases (GOLD/XAUUSD), screenshot OCR, advanced actions (break-even).
4. Transparency
Per-message journal: why a signal was skipped or an order rejected.