Short version: If you are looking for a Hopper alternative because Hopper does not actually track or rebook your reservations after you book, Arbitrica is the closest direct replacement that does. Arbitrica is a Chrome extension that finds the cheapest version of any hotel by searching 200 country IPs, then continues monitoring after you book and rebooks automatically when a lower rate appears. Hopper predicts; Arbitrica acts.
Why people search for a Hopper alternative
Short answer: Hopper became famous for flight-price prediction and grew into one of the largest travel-booking apps in North America. Two structural limitations push users to look for alternatives: Hopper does not monitor reservations after they have been booked, and it does not search hotel prices across country IPs. Both gaps cost users meaningful money.
Hopper's actual product is flight and hotel booking with predictive pricing — it tells you whether to book now or wait, sells "freeze" products that hold a price for 24-72 hours, and runs aggressive Carrot Cash rewards. The post-booking monitoring most users assume they get is not there. If your rate drops after you book, Hopper does not tell you.
What does Arbitrica do that Hopper does not?
Short answer: Three things. (1) Arbitrica searches the same hotel from 200 country IPs in parallel to find the cheapest globally available price. (2) Arbitrica continues monitoring after you have paid and rebooks automatically when a cheaper refundable rate appears. (3) Arbitrica handles cross-OTA rebookings — if the cheaper rate is on a different OTA than the original, the swap is automatic. Hopper does none of these.
Side-by-side: Hopper vs Arbitrica
| Feature | Hopper | Arbitrica |
|---|---|---|
| Pre-checkout price search | Yes (single country) | Yes (200 countries) |
| Post-booking monitoring | No | Yes |
| Automatic rebooking | No | Yes |
| Geographic price arbitrage | No | Yes |
| Cross-OTA price comparison | Limited | Yes |
| Price prediction | Yes | Not the focus |
| Price-freeze products | Yes | No |
| Surface | iOS/Android app | Chrome extension |
| Pricing model | Free, monetized via Carrot Cash + freezes | Free for first 10K, then $20/mo + 10% of savings |
When is Hopper the better choice?
Short answer: Hopper is the better choice if you book domestic flights frequently and want price-prediction guidance on flight timing, or if you value the Carrot Cash points ecosystem. The freeze products are also useful for flexible travelers who want to lock a price while finalizing dates.
When is Arbitrica the better choice?
Short answer: Arbitrica is the better choice if you book international hotels at all. Geographic price discrimination is the largest single source of overpayment in hotel bookings — Hopper does not surface it. Arbitrica also captures temporal drops after you have booked, which Hopper does not monitor. For users who care about getting the lowest hotel price rather than the most convenient app, Arbitrica's coverage is structurally larger.
What other Hopper alternatives exist?
Short answer: The category is fragmented. RoomHawk and Pruvo do post-booking monitoring but only on one country IP. RatePunk does cross-OTA pre-checkout comparison but no post-booking work. Repriced handles automatic rebooking but on limited country coverage. Arbitrica is the only product that combines multi-country search, post-booking monitoring, and automatic rebooking in one Chrome extension.
For the full picture, see our 2026 review of the 8 main hotel price trackers.
How do I switch from Hopper to Arbitrica?
Short answer: Install the Arbitrica Chrome extension, sign in, and continue using the same booking sites you already use. There is no migration. Hopper is an app; Arbitrica is an extension that works alongside any booking flow. You can keep Hopper installed for flight-price prediction and use Arbitrica for hotel-price arbitrage and rebooking at the same time.
Common questions about switching from Hopper
Will I lose my Hopper Carrot Cash if I use Arbitrica?
No. Arbitrica does not interact with Hopper's account. If you have accumulated Carrot Cash, it remains available for redemption inside Hopper independently of any Arbitrica activity.
Does Arbitrica predict hotel prices like Hopper does?
Arbitrica's focus is finding the cheapest currently-available price across geographies and monitoring for drops afterward. Hopper's prediction model estimates whether prices will go up or down — that is a different product approach. For hotels specifically, geographic spread is a larger factor than prediction accuracy, which is why Arbitrica focuses there.
Can I use Arbitrica on the Hopper app itself?
No, Arbitrica is a Chrome extension and works on web booking flows (Booking.com, Expedia, Hotels.com, Agoda, chain direct sites). Hopper bookings made inside the Hopper app are not visible to Arbitrica. For bookings you want Arbitrica to monitor and potentially rebook, book through a web OTA instead.
Is Arbitrica free?
Free for the first 10,000 users. After that, $20/month plus 10% of savings captured. The 10% performance fee only applies to actual savings — if a month produces no savings, only the $20 base fee applies. Combined cost is the lowest in the category for users who book more than twice a year.
Stop overpaying for hotels
Arbitrica searches 200 countries for the cheapest version of every hotel you book. Free for the first 10,000 users.
Join the waitlist — free for first 10,000