MarketWeaverMarketWeaver vs Polifly
A factual feature comparison for prediction-market traders. Competitor entries come only from that vendor’s own public pages and are dated; anything not yet checked is marked “Not yet reviewed”. Last reviewed 2026-10-23. Vendor site: https://polifly.io
| Feature | MarketWeaver | Polifly |
|---|---|---|
| Price | $29/mo Pro; free preview (3 markets, 1 analyzer check/day). No annual/lifetime/$1 trials. | $1 for the first 7 days, then auto-renews at $39 to $39.99/mo (All Access) or $79 to $79.99/mo (Copytrading). No free tier; no refunds per Terms updated 2026-07-08. |
| Move attribution to the contract’s named .gov source | Yes: BLS, Federal Reserve, SEC, NHC, Federal Register feeds; links the timestamped release. | No. Uses an undisclosed AI model and unnamed news sources without linking the contract’s official .gov resolution release. |
| Structured resolution-rule checklist | Yes: 5 points (source, cutoff and timezone, trigger, fallback, cross-venue diff). | No structured 5-point settlement-rule checklist or timezone/fallback trap breakdown. |
| Polymarket ↔ Kalshi rule diff | Yes: clause-by-clause, plus a fee-adjusted spread calculator. | No clause-by-clause Polymarket vs. Kalshi settlement rule diff. |
| 5-point rule check on every market | Yes: a 5-point rule check on every market, with buyers vs sellers near the price, a rule note, the official source and a fine-print risk score. | No per-market settlement-rule audit or public forecast accuracy log. |
| Output identical for every subscriber | Yes: CFTC Rule 4.14(a)(9) standardized-research design, with no portfolio inputs. | Offers an AI chat coach and personalized wallet copy-trading alongside daily AI-chosen markets. |
| Kalshi data handling | Paste-in rules or browser-only BYOK; no server-side storage or redistribution. | Screenshot or link upload in the analyzer; wallet tracking and copy-trading are Polymarket-only. |
| Trade execution / custody | None. MarketWeaver’s servers never receive, store, or see your exchange keys, wallet, balances, or positions. | Yes on the Copytrading tier (connects a Polymarket trading key to mirror wallets automatically). |