HydraProxy

• Priced per port, and a port gives one rotating IP at a time. The $59.95 price is the Standard 30-day plan (rotation every 30 minutes, or extended up to 6 hours); Premium, which adds 5 and 10 minute rotation, costs $79.95. Manual IP changes aren't offered.
• Also sold as one-off plans of 1, 3 and 7 days at $2.95, $7.95 and $15.95 (Standard); the 30-day plan is the only one marked recurring. A separate static mobile product, sold only per 24 hours at $3.00 a day, is left out.

• Tier ranges on the pricing page overlap at their boundaries (1-10 GB and 10-100 GB); each tier is recorded from its stated lower bound. Above 1 TB is through sales, with no price published.
• The worldwide mobile page lists different tiers: $5 per GB up to 50 GB, $4 to 150 GB and $3 to 1,000 GB. The pricing page is used.
• How long purchased traffic lasts is unclear: the page says '30-day validity' in its introduction and a '3 month expiry period' in its FAQ.

• Tier ranges on the pricing page overlap at their boundaries (1-50 GB and 50-250 GB); each tier is recorded from its stated lower bound. The pricing page says to contact sales above 1 TB.
• The homepage and residential page list different tiers: $5 per GB up to 50 GB, $4 to 150 GB, $3 to 1,000 GB and $2.5 above 1 TB. The pricing page is used.
• The pricing page and an order guide also mention SOCKS and city or ISP targeting, but the residential FAQ says HTTP/HTTPS only and country-level targeting. Pool size is given as 5M+, 7M+ and 20M+ on different pages, so it is left out.
• The residential page says traffic can be used 'for as long as you need' and gives no expiry period.

• Each IP is fixed for 30 days. Renewal is optional: the pricing page says 'Recurring optional', the product page 'Non-recurring'.
• Tier ranges overlap at their boundaries (1-50 IPs and 50-100 IPs); each tier is recorded from its stated lower bound. More than 500 IPs is through sales, with no price published.