What the rating contains
- Attempts
- Every terminal route outcome during the past 30 days: received, finished, timed out, canceled, or banned.
- Delivered SMS
- Orders where Sim7 actually recorded the first incoming message.
- Sample size
- The number of attempts. A tiny sample is never presented as a confident percentage; its influence is automatically reduced.
- Median delivery
- The typical time from order creation to the first SMS. Unlike a mean, a median is less distorted by a few long deliveries.
- Effective cost
- The current number price divided by the estimated probability of receiving a code, making unreliable cheap routes comparable with reliable higher-priced routes.
How the recommendation is calculated
Sim7 combines its observed outcomes with the route's published statistics and applies a conservative confidence estimate. Real Sim7 orders progressively outweigh the initial estimate. A route without enough history is explicitly marked as having limited data.
Three Smart Buy modes
- 1Most reliableConfidence-adjusted delivery probability and measured SMS speed carry the most weight.
- 2BalancedReliability, effective cost, delivery time, and available stock are considered together.
- 3CheapestThe lowest actual price comes first; equally priced routes are ordered by reliability.
Freshness and limitations
Price and stock are synchronized regularly, while the rating uses a rolling 30-day window. Past performance cannot guarantee future delivery because platforms and carriers change filters without notice. Sim7 rechecks price and stock before charging, and never buys a more expensive route without a separate confirmation.