it's with great excitement I finally launch this product. let's see if it's useful for anybody.
simulation engine
- monte carlo cash flow forecasting with 5000 runs over a 6-month horizon
- three chart modes: percentile lines, confidence bands, individual traces
- three uncertainty dimensions sampled per run: date, amount, exchange rate
- risk of ruin calculation (probability of going negative)
- percentile bands at P5/P25/P50/P75/P95 for each projected day
- scheduled event overlay on hover
- results stream live via NDJSON — no loading spinners
recurring transactions
- fixed, variable, or history-learned amounts
- six statistical distributions: normal, lognormal, uniform, beta (low/mid/high)
- timing models: exact, approximate, hazard-rate (flat/increasing/decreasing)
- business day adjustments with US federal holiday calendar
- settlement delays (T+N days)
- late fee modeling: flat, percentage, per-day flat, per-day percentage with grace periods
- temporal versioning — edits create new versions, history preserved
- RRULE-based scheduling (weekly, biweekly, monthly, semi-monthly, custom)
plans
- life event modeling: moves, job changes, weddings, freelancing
- four action types: modify, end, create recurring, or one-time cost
- combinatorial feasibility analysis across all active plans
- two-pass screening: fast pass then detailed refinement
- plans ranked by risk of ruin and ending balance
- dependency chains and mutual exclusion groups
accounts & transactions
- six account types: checking, savings, credit card, investment, loan, other
- 11 currencies with per-account denomination
- OFX/QFX bank file import with dedup via fitId
- auto-categorization via filter rules (exact, prefix, contains, regex)
- cross-currency transactions with FX rate and fee tracking
- trigram search indexing, infinite scroll pagination
multi-currency
- exchange rate uncertainty via geometric brownian motion
- annualized volatility parameter per currency pair
- each simulation run samples its own FX rate path
- historical rate sync and backfill from ECB/Frankfurter API
- configurable decimal formatting per currency
dashboard
- unified historical + projected chart with today and zero reference lines
- rich hover tooltip with scheduled events, emoji, amounts, cash position
- slide-over panels for all data views
- auto-reruns simulation after mutations
community
- feature requests with voting, comments, and admin status management
- public roadmap (planned / in progress / shipped)
- release notes with linked feature requests
- support forum with posts, replies, voting, mark-as-answer, pinning
- slug-based URLs for all community content
infrastructure
- stripe billing: $9/mo or $90/yr with 30-day free trial
- marketing email opt-in at registration and in settings