Last reviewed: September 7, 2026 Last updated: September 7, 2026

Written by: Jay Hastings, CEO of PlexusDx

Jay Hastings is the CEO of PlexusDx, a precision health company focused on genetic testing, blood biomarker insights, and personalized wellness recommendations. He has more than 20 years of experience across healthcare innovation, genomics, laboratory operations, healthcare investing, and strategic finance. His work has included scaling healthcare startups, leading CLIA lab integrations, and helping expand consumer access to precision health tools.

Medically reviewed by: Jayden Lee, PharmD, EMBA

Jayden Lee, PharmD, EMBA, is the PlexusDx Medical Science Liaison with a PharmD and MBA specializing in pharmacogenomics and clinical product development, with a proven ability to bridge the gap between genomic research and practical patient outcomes. Dr. Lee has more than 10 years of professional experience in clinical pharmacy, academia, and research.

PlexusDx publishes this comparison and is one of the providers discussed. We use the same evidence rules for our own program and competing programs.

The short answer

GobyMeds charges $299 upfront for a three-month starter or low-dose semaglutide bundle (0.2–0.4 mg), $399 upfront for mid-tier doses (up to 0.6–1.5 mg), and $499 upfront for high-tier doses (up to 1.9–2.3 mg), with no separate membership fee. Tirzepatide is available as a $399 three-month starter bundle or $299 per month month-to-month. All prices include medication, consult, supplies, and overnight shipping. The three-month bundles require upfront payment; over twelve months the lowest semaglutide tier costs $1,196 total ($99.67/month effective), the mid tier $1,596 ($133/month effective), and the high tier $1,996 ($166.33/month effective, our calculations). Tirzepatide month-to-month runs $3,588 over twelve months. GobyMeds does not offer a month-to-month option for semaglutide, so patients who prefer flexible billing must either switch to tirzepatide or accept the three-month commitment cycle. PlexusDx charges $189/month month-to-month for semaglutide injection at every dose ($2,268 over twelve months) or $169/month prepaid in three-month cycles ($2,028 over twelve months, our calculation); tirzepatide is $289/month month-to-month ($3,468 over twelve months) or $269/month prepaid three-month ($3,228 over twelve months, our calculation). GobyMeds' low-tier prepaid semaglutide rate beats PlexusDx's prepaid rate, but requires a larger upfront commitment and escalates at higher doses; PlexusDx offers simpler month-to-month terms and a lower tirzepatide rate. The better choice depends on your dose expectations, cash-flow preference, and tolerance for prepayment risk.

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At-a-glance pricing comparison

Item GobyMeds PlexusDx
Semaglutide injection (low tier) $299 upfront per 3-month cycle = $99.67/month effective (prepaid) $189/month month-to-month, or $169/month prepaid 3-month
Semaglutide injection (mid tier) $399 upfront per 3-month cycle = $133/month effective (prepaid) $189/month month-to-month, or $169/month prepaid 3-month (same at every dose)
Semaglutide injection (high tier) $499 upfront per 3-month cycle = $166.33/month effective (prepaid) $189/month month-to-month, or $169/month prepaid 3-month (same at every dose)
Tirzepatide injection $299/month month-to-month, or $399 upfront starter bundle (3 months) $289/month month-to-month, or $269/month prepaid 3-month
Membership or service fee $0 $0
Consult, supplies, shipping Included (overnight shipping) Included

GobyMeds pricing verified September 4, 2026 from https://www.gobymeds.com/getting-started/pricing and https://www.gobymeds.com/getting-started/compounded-tirzepatide. PlexusDx pricing verified September 7, 2026. Prepaid per-month equivalents are our calculation.

GobyMeds pricing structure: dose tiers and three-month bundles

GobyMeds sells compounded semaglutide injections in three-month prepaid bundles tiered by dose range. The starter or low-tier bundle covers doses from 0.2 mg to 0.4 mg per week and costs $299 upfront for three months. The mid-tier bundle covers doses from 0.5 mg through 1.5 mg and costs $399 upfront for three months. The high-tier bundle covers doses from 1.6 mg to 2.3 mg and costs $499 upfront for three months. Each bundle includes the medication, initial consult, injection supplies, and overnight shipping; there is no separate membership or monthly service fee. You pay the full three-month amount at the start of each cycle, and the subscription auto-renews every three months unless you cancel.

Expressed as a per-month equivalent (our calculation), the low tier runs $99.67 per month effective, the mid tier $133 per month effective, and the high tier $166.33 per month effective. These figures require the upfront payment and assume you complete the three-month cycle without interruption.

GobyMeds does not offer a month-to-month billing option for semaglutide. If you prefer flexible monthly billing without prepayment, GobyMeds' tirzepatide program is your only compounded GLP-1 choice within the same service; tirzepatide costs $299 per month with no upfront commitment (verified September 4, 2026). GobyMeds also offers a tirzepatide starter bundle at $399 upfront for three months, but most patients seeking tirzepatide select the month-to-month plan for billing flexibility.

Twelve-month cost comparison: GobyMeds bundles vs PlexusDx flexible plans

The table below shows total twelve-month costs for GobyMeds' prepaid semaglutide bundles and tirzepatide month-to-month plan, alongside PlexusDx's month-to-month and three-month prepaid rates. All calculations assume continuous treatment; medication, consult, supplies, and shipping are included in all plans.

Plan 12-Month Total Effective Monthly Billing Structure
GobyMeds semaglutide low tier $1,196 $99.67/month 4 cycles × $299 upfront (3-month prepaid)
GobyMeds semaglutide mid tier $1,596 $133/month 4 cycles × $399 upfront (3-month prepaid)
GobyMeds semaglutide high tier $1,996 $166.33/month 4 cycles × $499 upfront (3-month prepaid)
PlexusDx semaglutide month-to-month $2,268 $189/month Monthly billing, cancel anytime
PlexusDx semaglutide 3-month prepaid $2,028 $169/month 4 cycles × $507 upfront (3-month prepaid)
GobyMeds tirzepatide month-to-month $3,588 $299/month Monthly billing, cancel anytime
PlexusDx tirzepatide month-to-month $3,468 $289/month Monthly billing, cancel anytime
PlexusDx tirzepatide 3-month prepaid $3,228 $269/month 4 cycles × $807 upfront (3-month prepaid)

All figures verified September 4–7, 2026. Twelve-month totals and effective monthly rates are our calculation. PlexusDx charges the same rate at every dose; GobyMeds tiers semaglutide pricing by dose range.

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Decision factors: dose predictability, cash flow, and commitment risk

GobyMeds' low-tier advantage and dose-tier risk

GobyMeds delivers the lowest effective monthly rate in this comparison if you stay in the low-tier dose range (0.2–0.4 mg semaglutide) for the full year: $1,196 total versus PlexusDx's $2,028 prepaid three-month or $2,268 month-to-month. The savings are substantial, but they depend on two conditions holding true over twelve months: first, that your prescribing clinician keeps you in the 0.2–0.4 mg range, and second, that you complete each three-month cycle without needing to pause, switch medications, or stop treatment.

If your dose escalates into the mid tier (0.5–1.5 mg), your next three-month payment jumps to $399, raising your effective monthly cost to $133. At that tier, GobyMeds still undercuts PlexusDx's month-to-month rate but runs close to PlexusDx's $169 prepaid three-month rate when dose consistency is factored in. If you reach the high tier (1.6–2.3 mg), the effective monthly cost rises to $166.33, nearly matching PlexusDx's month-to-month $189 rate and exceeding PlexusDx's prepaid rate. Many patients starting at low doses eventually titrate upward; if you cannot predict your maintenance dose before committing to a three-month cycle, the tier structure introduces cost uncertainty that a flat-rate plan avoids.

Upfront commitment and cancellation exposure

GobyMeds' semaglutide plans require $299 to $499 upfront for three months of medication. If you experience limiting side effects, achieve your goal weight early, or discover the medication is not effective for you within the first few weeks, the prepaid amount is at risk. GobyMeds' terms of service and refund policy were not captured in this review; patients should confirm cancellation and refund terms directly before checkout. PlexusDx's month-to-month plans bill one month at a time, so if you stop treatment after the first month you pay only for that month. The flexibility costs more per month on a month-to-month basis ($189 versus GobyMeds' $99.67 effective low tier), but eliminates the risk of paying for unused medication.

Tirzepatide: PlexusDx month-to-month advantage

For tirzepatide, PlexusDx charges $289 per month month-to-month versus GobyMeds' $299 per month month-to-month, a $10 per month difference that compounds to $120 over twelve months ($3,468 PlexusDx versus $3,588 GobyMeds, our calculation). Both providers offer the same flexible billing with no upfront commitment, so the lower rate and otherwise equivalent service structure favor PlexusDx for tirzepatide. GobyMeds offers a $399 three-month tirzepatide starter bundle, but PlexusDx's prepaid three-month tirzepatide plan costs $807 upfront ($269/month effective) and beats both GobyMeds' bundle and month-to-month rates over any sustained period.

Billing simplicity and service transparency

GobyMeds includes medication, consult, supplies, and overnight shipping in every plan with no separate membership fee; PlexusDx follows the same all-inclusive model. Neither provider charges a consultation fee at renewal or hides costs in monthly service fees. GobyMeds' dose-tier pricing adds a layer of complexity that PlexusDx's flat rate avoids: you must understand which dose range you expect to stay in, and you bear the cost risk if your clinician titrates you into a higher tier mid-cycle. PlexusDx charges the same rate regardless of dose, simplifying budgeting and eliminating tier-transition surprises.

Choose GobyMeds if…

You expect to remain in the low-dose semaglutide range (0.2–0.4 mg) for at least twelve months, you have the cash flow to pay $299 upfront every three months, and you are comfortable with the prepayment risk. GobyMeds' $99.67 effective monthly rate in the low tier is the lowest in this comparison and will save you over $1,000 in the first year compared to PlexusDx's month-to-month rate. The savings shrink or reverse if you escalate into higher dose tiers, so this choice rewards patients with predictable low-dose maintenance plans and stable treatment trajectories.

Choose PlexusDx if…

You prefer month-to-month billing with no upfront commitment, you want the same price at every dose, or you are starting tirzepatide. PlexusDx's $189/month semaglutide rate costs more month-to-month than GobyMeds' low-tier effective rate, but eliminates prepayment risk and tier-transition cost jumps; the $169/month prepaid three-month rate competes directly with GobyMeds' mid tier and beats the high tier. For tirzepatide, PlexusDx's $289/month rate undercuts GobyMeds' $299/month by $10 per month with identical billing flexibility, and PlexusDx's prepaid three-month tirzepatide plan ($269/month effective) delivers the lowest tirzepatide rate in this comparison. PlexusDx also holds a 4.3-star rating on Trustpilot, with 79% of reviews at five stars and 83% at four stars or higher (captured September 9, 2026), providing independent service-quality visibility.

Methodology and freshness

We captured GobyMeds pricing from the provider's public pricing pages (https://www.gobymeds.com/getting-started/pricing for semaglutide and https://www.gobymeds.com/getting-started/compounded-tirzepatide for tirzepatide) on September 4, 2026. PlexusDx pricing was verified September 7, 2026 from live product pages. Twelve-month totals, effective monthly rates for prepaid bundles, and normalized cost comparisons are our calculation, derived by multiplying the stated cycle price by the number of cycles per year or the monthly rate by twelve months. We verified that both providers include medication, consult, supplies, and shipping in the stated price with no separate membership fee. No promotional codes, referral discounts, or introductory rates were applied. This article was published September 7, 2026; readers should confirm current pricing, dose-tier thresholds, cancellation policies, and refund terms at checkout, as telehealth pricing and plan structures change frequently.

Frequently Asked Questions

Does GobyMeds charge a membership fee?

No. GobyMeds includes the consultation, medication, injection supplies, and overnight shipping in the stated bundle price with no separate monthly membership or service fee. You pay only the upfront three-month bundle cost for semaglutide or the monthly subscription rate for tirzepatide.

Can I pay month-to-month for semaglutide with GobyMeds?

No. GobyMeds offers semaglutide only in three-month prepaid bundles, requiring $299, $399, or $499 upfront depending on your dose tier. If you prefer month-to-month billing, GobyMeds' tirzepatide plan ($299/month) or a competitor like PlexusDx ($189/month semaglutide) may fit better.

What happens if my dose increases and I move into a higher GobyMeds pricing tier?

Your next three-month payment will reflect the new tier. For example, if you start in the low tier at $299 per cycle and your clinician titrates you to 0.6 mg, your next cycle will cost $399 (mid tier). The tier change takes effect at your next billing cycle, not mid-cycle.

Which provider offers the lowest tirzepatide rate?

PlexusDx charges $289 per month month-to-month for tirzepatide injection, $10 per month less than GobyMeds' $299 month-to-month rate. Over twelve months, PlexusDx costs $3,468 versus GobyMeds' $3,588 (our calculation). PlexusDx also offers a prepaid three-month plan at $269 per month effective, the lowest tirzepatide rate in this comparison.

Are GobyMeds' compounded medications FDA-approved?

No. Compounded medications are not FDA-approved. FDA does not review compounded drugs before marketing for safety, effectiveness, or quality. A licensed clinician determines whether a prescription is appropriate for an individual patient. GobyMeds, like PlexusDx, dispenses compounded semaglutide and tirzepatide from licensed compounding pharmacies.

Sources

  • GobyMeds Semaglutide Pricing – https://www.gobymeds.com/getting-started/pricing – accessed September 4, 2026
  • GobyMeds Tirzepatide Pricing – https://www.gobymeds.com/getting-started/compounded-tirzepatide – accessed September 4, 2026
  • PlexusDx Semaglutide Injection – https://plexusdx.com/products/semaglutide-injection – accessed September 7, 2026
  • PlexusDx Tirzepatide Injection – https://plexusdx.com/products/tirzepatide-injection – accessed September 7, 2026
  • PlexusDx Trustpilot Profile – captured September 4, 2026

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Compounded medication disclosure: Compounded medications are not FDA-approved. FDA does not review compounded drugs before marketing for safety, effectiveness, or quality. A licensed clinician determines whether a prescription is appropriate for an individual patient. PlexusDx works with licensed 503A compounding pharmacies.

Medical and Editorial Standards

Medical review process: This article was reviewed for medical accuracy, scientific clarity, evidence alignment, and appropriate discussion of genetics, medications, supplements, biomarkers, and health-related claims.

Sources and evidence: PlexusDx educational content is developed using peer-reviewed research, clinical literature, reputable medical references, and, where applicable, public health or regulatory guidance. References are included at the end of the article when scientific, medical, or health-related claims are discussed.

Commercial transparency: PlexusDx offers genetic testing, blood biomarker testing, personalized supplement recommendations, and related precision wellness services. Product mentions are intended to help readers understand available options and should not be interpreted as medical advice.

Important disclaimer: PlexusDx educational content is for informational purposes only and should not be used as a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider before making decisions about medications, supplements, genetic testing, lab testing, or health-related care.

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