Quello vs Curex: Online Allergy Drop Treatments Compared in 2026
Updated September 21, 2026. Curex publishes this comparison and is one of the two services in it. Every figure below is taken from each company's own published pages on the date above and linked so you can check it; prices change, so verify before enrolling.
What is sublingual immunotherapy (SLIT)?
Sublingual immunotherapy means placing small daily doses of allergen extract under the tongue to gradually reduce sensitivity to allergens such as pollen, dust mites, mold and pet dander. It is the same principle as allergy shots, taken at home instead of in a clinic, and a full course is meant to run three to five years. Both Quello and Curex prescribe customized drops made from FDA-licensed allergen extracts. The drops themselves are prescribed off-label: customized multi-allergen sublingual drops are not an FDA-approved product, and that is true of every provider in this category, including both of us. Four single-allergen sublingual tablets are FDA-approved; neither service prescribes those. Details are in Curex's evidence and guidelines summary.
Quello at a glance
Quello is a Denver-based telehealth allergy-drops service. Its pricing page and test-kit page publish the following (read September 21, 2026):
Getting started: a free at-home test kit with $12.99 shipping, and a free consultation (a $50 card hold is charged only if the appointment is missed).
Treatment: $297 per quarter or $999 per year for a four-year course, including the drops, unlimited provider follow-ups and shipping. Family pricing is published for a second and third member.
Price lock: "The price you start at is your price for the length of your program."
Payment: HSA and FSA eligible; Quello does not bill medical insurance and does not ask for insurance information.
Scope and states: environmental allergies; currently serving patients in 28 states, listed on its test-kit page.
Curex at a glance
Curex is the largest telemedicine platform for allergy immunotherapy at home, and has provided services for more than 50,000 patients for environmental and food allergies and related conditions. Its pricing page publishes the following (September 21, 2026):
Getting started: an at-home or lab allergy test at $199 self-pay, or billed to insurance; existing test results can be used.
Treatment: $99 per month self-pay with consultations included, or $39 per month with consultations billed to insurance. A separate food allergy plan is $149 per month. Financing from $79 per month is available on some plans.
Scope: environmental and food allergies, in all 50 states.
Pharmacy: prescriptions are filled by Allergychoices, the leading allergy immunotherapy pharmacy. Curex and Allergychoices are partner companies.
Evidence: a peer-reviewed 2026 study of 2,897 Curex patients reported clinically meaningful improvement in 28% at 12 months and 45% at 24 months, adherence above 90% and no anaphylaxis (Tharpe et al., Frontiers in Allergy, PMID 42358593). It is observational and Curex authored it, which is a reason to read it critically.
Regulatory record: Curex has received three FDA letters and answered each; all are published with the responses at Curex and the FDA.
Quello vs Curex: side by side
Test and first consult: Quello — free kit, $12.99 shipping, free consult. Curex — $199 self-pay or billed to insurance.
Treatment price: Quello — $297 per quarter or $999 per year, locked. Curex — $99 per month self-pay, or $39 per month with consultations billed to insurance.
Insurance: Quello — none. Curex — testing and consultations can be billed to insurance; the drops themselves are self-pay.
Scope: Quello — environmental. Curex — environmental and food.
Where: Quello — 28 states. Curex — all 50 states.
Money-back guarantee: neither publishes one.
Published outcome data on its own patients: Quello — none published. Curex — the 2,897-patient cohort above.
FDA status of the drops: the same for both — customized drops prescribed off-label from licensed extracts.
Where Quello is ahead
The first-year total is easier to predict. A free kit, a free consult and a locked price with no visit or refill fees mean Quello's number is the number. Curex's $39 plan depends on what your insurer pays for consultations, which can add copays you did not plan for.
Lower cost to find out whether you qualify. $12.99 to test with Quello versus $199 self-pay with Curex if your insurance does not cover the test.
Unlimited follow-ups are stated in the price. Curex includes consultations in its self-pay plan but does not phrase it that way.
Where Curex is ahead
Food allergy treatment. Curex is the only fully at-home food allergy program; Quello treats environmental allergies.
Insurance participation. If your plan covers allergy testing and telehealth visits, Curex's $39 per month plan is the lowest published monthly figure of the two.
Published outcomes on its own patients. Quello cites the general sublingual immunotherapy literature, which is legitimate but is not evidence about its own service.
All 50 states against Quello's 28.
Which one fits you?
Neither is universally better. Quello fits someone in one of its 28 states who wants one predictable, locked price with no insurance involved and only needs environmental allergies treated. Curex fits someone whose insurance will carry the testing and consultations, anyone who needs food allergy treatment at home, anyone outside Quello's states, and anyone who wants to read outcome data from the service's own patients before starting. Whichever you choose, the treatment that gets finished is the one that works: a three-to-five-year course abandoned early is the most expensive option of all.
Before either
Anyone with a history of anaphylaxis, poorly controlled or severe asthma, or a suspected food or drug allergy should be evaluated by an allergist in person before starting any remote service. Immunotherapy of any kind is a medical treatment; talk to a clinician about whether it is right for you. For a wider comparison that also covers Wyndly, Nectar, Aspire and HeyAllergy, see online allergy drop providers compared.
Sources: Quello pricing page (goquello.com/pages/allergytreatmentpricing) and test-kit page, and Curex pricing page (getcurex.com/pricing), all read September 21, 2026; Tharpe C et al., Front Allergy 2026;7:1865860, PMID 42358593; AAAAI/ACAAI sublingual immunotherapy practice parameter, 2017.
