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What is the Abbott Lingo?
The Abbott Lingo is an over-the-counter CGM FDA-cleared (K233655) for adults aged 18 and older who do not use insulin, and aimed at wellness-focused users. It uses the same sensor technology as Abbott's FreeStyle Libre platform — whose prescription Libre 3 model has a 7.8% MARD in Abbott's own pivotal trial — but with a completely rebuilt app experience designed for non-clinical users. Lingo's 8.1–10.7% figure is the lowest and highest of six MARD values in the FDA decision summary for K233655 (FreeStyle Libre 2 clinical data, glucose 55–200 mg/dL): three binned by the sensor's own glucose reading (8.1–9.9%) and three binned by the reference comparator's glucose (8.9–10.7%); it is not an overall MARD and comes from a separate study with different conditions, so it cannot be ranked directly against other devices' figures.
The defining feature is the Lingo Count — a proprietary daily total built from the glucose spikes Abbott's algorithm identifies in your readings (Abbott support). Instead of showing only raw numbers, the app surfaces a score you can track. The algorithm can misidentify spikes, and the Count is not a medical assessment of whether a particular glucose value is dangerous or a validated clinical measure of health.
The Lingo Count — a proprietary score
Abbott’s algorithm assigns Count to identified glucose spikes and totals it over the day. A larger Count reflects larger or longer identified spikes, not greater stability. The algorithm can misidentify spikes; Abbott describes how users may remove a Count attributed to a misidentified spike.
The Count reflects the spikes the app identifies; it is not a diagnosis or a rating of your overall health. The app also lets you log meals and activities alongside the spikes.
The Count summarizes identified spikes as a proprietary daily score. It differs from clinical metrics such as time in range, and following its trend does not establish a clinical benefit or overall health assessment.
The app displays a glucose graph as well as Count. Compare its logging and presentation features with your needs; Count does not establish improved metabolic health.
The Lingo app — education-first design
The Lingo app provides a glucose graph, Count and educational content. Logged events can be compared with sensor observations; app summaries do not establish why a glucose change occurred.
The app provides food logging alongside glucose observations. Apple Health integration allows activity and sleep data to be layered on top of your glucose curve.
Lingo provides a glucose graph and Count. Check current export and display features rather than assuming it only shows a score.
Abbott Lingo cost
Abbott sets the Lingo price and offers it by subscription — check the current price on Amazon, and compare with Dexcom Stelo's. For 14-day sensors, that's 2 sensors per month.
Ask your insurer whether your plan covers the Lingo before buying it; over-the-counter availability does not establish coverage. HSA/FSA may apply — check with your plan administrator.
Abbott Lingo vs Dexcom Stelo
| Feature | Abbott Lingo | Dexcom Stelo |
|---|---|---|
| App approach | Lingo Count score | Raw data + food logging |
| Wear time | 14 days | 15 days |
| Monthly cost | Check price | Check price |
| Cleared for | Adults 18+ not on insulin; over the counter | People not on insulin; FDA-cleared from age 2 (June 2026) |
| Sensor accuracy | Libre platform (8.1–10.7% MARD (by glucose range)) | Dexcom platform (7.3–9.1% (historical adults, by wear period)) |
Frequently asked questions
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