This content is for informational purposes only. CGM devices are not a substitute for medical advice. Always consult your healthcare provider before making health decisions.
All prices are based on published retail pricing as of May 2026, verified against manufacturer websites and major retailers. Insurance pricing varies significantly by plan — always contact your insurer for specific cost information.
CGM prices at a glance — all tiers 2026
| Device / Platform | Monthly cost | Prescription | Insurance coverage |
|---|---|---|---|
| Abbott Lingo | ~$49/month | No — OTC | Unlikely |
| Dexcom Stelo | ~$99/month | No — OTC | Unlikely |
| Nutrisense (annual) | ~$179/month | No — OTC | No |
| Levels Health (annual) | ~$166/month | No — OTC | No |
| FreeStyle Libre 3 | ~$130/month | Yes | Often covered |
| Dexcom G7 | ~$350/month | Yes | Often covered |
Enter your monitoring period and prescription status — see costs instantly.
Over-the-counter CGM pricing — no prescription needed
Two CGMs are available without a prescription in 2026. Both are sold in packs of two sensors covering 28–30 days of monitoring.
Abbott Lingo — cheapest OTC CGM
14-day sensors, FreeStyle Libre platform, 7.8% MARD accuracy. Lingo Score app system. The most affordable CGM you can buy without a prescription. Read full review →
Dexcom Stelo — best OTC data platform
15-day sensors, 8.7% MARD accuracy, Dexcom Clarity integration, full data export. Stronger data tools than Lingo at double the price. Read full review →
OTC CGMs cost more per month than prescription devices covered by insurance. If you have a qualifying diagnosis and insurance coverage, a prescription CGM may cost significantly less out of pocket than an OTC device.
Prescription CGM pricing — before and after insurance
Prescription CGMs have much higher retail prices but are frequently covered by Medicare, Medicaid, and private insurance for qualifying users. Out-of-pocket costs vary enormously by insurance plan.
FreeStyle Libre 3 — most accurate overall
Retail ~$130/month. 14-day sensor, 7.9% MARD, real-time streaming. With insurance, out-of-pocket cost can drop to $0–40/month depending on plan. Read full review →
Dexcom G7 — clinical gold standard
Retail ~$350/month. 10-day sensor, 8.2% MARD, strongest low-glucose accuracy. With insurance or GoodRx/manufacturer programs, out-of-pocket can be substantially lower. Read full review →
CGM subscription platform pricing — app + sensor bundles
CGM subscription platforms bundle sensors with proprietary apps and, in some cases, coaching. They're more expensive than buying sensors directly but add a data or coaching layer.
Levels Health — best data platform
$199/month or $166/month annual. FreeStyle Libre sensors + metabolic scoring app, wearables integration, lab upload. No coaching. Read full review → · Compare vs Nutrisense →
Nutrisense — sensors + RD coaching
$299/month or $179/month annual ($150/month sensor-only). FreeStyle Libre sensors + registered dietitian coaching. Best for users who want expert data interpretation. Read full review →
7 days, 30 days, 90 days, or a full year — with or without prescription.
CGM cost with insurance — what to expect
Insurance coverage for CGMs depends entirely on your plan, your diagnosis, and whether the device is considered medically necessary. Here's how it typically breaks down:
Medicare coverage
Medicare Part B covers CGMs for insulin-treated diabetes under specific criteria. Covered devices include the Dexcom G7 and FreeStyle Libre 3 when prescribed by a physician. Out-of-pocket costs after Medicare typically run 20% of the approved amount after deductible.
Private insurance
Private insurance coverage varies widely. Prescription CGMs are more commonly covered than OTC devices. Most insurers require a documented diagnosis (typically Type 1 or Type 2 diabetes on insulin) and a valid prescription. Coverage tiers, copays, and prior authorization requirements differ by plan.
OTC devices and insurance
OTC CGMs like Abbott Lingo and Dexcom Stelo are typically not covered by insurance, as they are marketed as wellness devices rather than medical equipment. Some HSA/FSA accounts may cover them — check with your plan administrator.
If you have a qualifying diagnosis and a prescription, a covered device will almost always cost less out-of-pocket than an OTC CGM at retail. Contact your insurer and ask specifically about Dexcom G7 and FreeStyle Libre 3 coverage before buying OTC.
What does a full year of CGM monitoring cost?
| Device | Monthly | Annual total | Cost per day |
|---|---|---|---|
| Abbott Lingo | $49 | $588 | $1.63 |
| Dexcom Stelo | $99 | $1,188 | $3.30 |
| Levels Health | $166 | $1,992 | $5.51 |
| Nutrisense | $179 | $2,148 | $5.97 |
| FreeStyle Libre 3 | $130 | $1,560 | $4.33 |
| Dexcom G7 | $350 | $4,200 | $11.64 |
The cheapest way to use a CGM — by situation
No prescription, no insurance — cheapest option
Abbott Lingo at $49/month is the lowest-cost CGM available without a prescription. Same FreeStyle Libre sensor technology as the Libre 3, simplified app, no Rx required.
Have a prescription, have insurance
FreeStyle Libre 3 is typically the most cost-effective prescription CGM when covered by insurance — lower retail price than G7 and strong coverage rates. Work with your prescriber to submit for coverage before paying out of pocket.
Want coaching alongside data
Nutrisense sensor-only (~$150/month) is the cheapest way to get a CGM app with quality analytics. Add the RD coaching plan ($179/month annual) if you want dietitian access.
Calculate your exact cost
Enter your monitoring period and prescription status — see all devices side by side instantly.
Open GlucoseForge CGM Cost Calculator →Our free calculator shows every device's cost for any monitoring period.