Tandem Trips

Use, Billing & Data Policy

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Effective date: 08/05/2025

This Policy describes how Tandem Trips operates the Service, how searches are billed, acceptable use, and today’s minimal data posture. It is incorporated by reference into the Terms of Service.

1) What the Service Does

  • Generate group flight options by expanding your inputs: multiple departure airports, destinations, and time windows with specified trip duration.
  • Present outbound links to third-party sites to complete any booking. Tandem Trips does not book travel and is not a party to any travel contract.

2) Billing Meter & Pricing

Price: $19 per 1,000 searches, rounded up to the nearest thousand (USD; taxes included).

Definitions

  • timeWindowDays = (endDate − startDate) + 1 (inclusive of both days)
  • tripVariants = max(0, timeWindowDays − tripDurationDays + 1)
  • totalSearches = (# of departure airports) × (# of destinations) × (tripVariants)
  • billableUnits = ceil(totalSearches / 1000)
  • priceUSD = 19 × billableUnits
// Example
// Departures: 3   Destinations: 2
// Time window: Aug 1–Aug 8 (8 days), Trip duration: 4 days
// tripVariants = 8 - 4 + 1 = 5  -> spans: days 1–4, 2–5, 3–6, 4–7, 5–8
// totalSearches = 3 * 2 * 5 = 30
// billableUnits = ceil(30 / 1000) = 1
// priceUSD = 19 * 1 = $19

More rounding examples: 1–1,000 searches → $19; 1,001–2,000 → $38; 2,001–3,000 → $57; etc.

  • No-result rule: If no valid result meets your full criteria, no charge is made.
  • Finality: If valid results are found, the search charge is final whether or not you ultimately book.
  • All fees are charged via Stripe in USD and include applicable taxes.

3) Acceptable Use Policy (AUP)

  • No automated scraping, bulk export, or attempting to bypass technical limits.
  • No unlawful, infringing, defamatory, or harmful activity.
  • No probing, scanning, or testing the vulnerability of the Service without authorization.
  • We may rate-limit, suspend, or terminate for suspected abuse at our discretion.

4) Data & Privacy (Current State)

  • No account creation today: We do not currently create user accounts.
  • Minimal transient processing: We process the inputs you provide only to perform searches. At this time, we do not store personal data after the search completes, other than operational logs necessary to secure and operate the Service.
  • Payments: Payment information is handled by Stripe. We do not receive your full card details.
  • Future changes: If we later introduce accounts or data collection, we will update this Policy and describe data categories, purposes, and retention.

5) Security

We take reasonable technical and organizational measures appropriate to the risk to protect the Service. No method of transmission or storage is 100% secure.

6) International Use

The Service is operated from the United States. If you access it from other regions, you do so at your own risk and are responsible for compliance with local laws. The Service may be unavailable in some countries due to legal restrictions or sanctions.

7) Policy Changes

We may update this Policy. Material updates will be posted here with an updated effective date. Your continued use constitutes acceptance. If you do not agree, stop using the Service.

8) Contact

Questions? Contact contact@tandemtrips.com.

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