spike vs Levels: which CGM app actually tells you what food does?
Levels made CGMs cool for non-diabetics. spike made them affordable to actually understand. Both read your sensor; they differ on what they hand back, and on what you pay for the privilege. Here's the honest comparison.
The core difference: a membership vs an analysis layer
Levels is a metabolic health membership. You pay an annual fee, optionally buy sensors through them, and get a daily metabolic score, meal grades, zone charts, community, and one of the best content libraries in the space. The product is the program.
spike is an analysis layer. You bring whatever CGM you already wear (Stelo, Dexcom G6/G7, Libre, or Lingo, anything that writes to Apple Health), and spike answers one question relentlessly: what did that meal do to your glucose? Photo the meal, get the curve, the peak, and the recovery time a few hours later, with a notification delivering the verdict.
Head to head
| spike | Levels | |
|---|---|---|
| Pricing model | $129.99/yr or $19.99/mo, free trial | Annual membership + sensor costs |
| Sensors | Bring your own via Apple Health | Bought through Levels or linked |
| Per-meal response curve | Baseline, peak, rise, recovery for every meal | Meal grades and daily score |
| Meal logging | AI photo, voice, or search, editable macros | Photo logging with scoring |
| Per-meal notifications | Yes, "your spike is in" with the number | No |
| Education / content | Minimal, the data is the teacher | Extensive library, a genuine strength |
| Community features | No | Yes |
| Platform | iOS | iOS, Android |
| Health data handling | Stays in Apple Health on device, never sold | Cloud-based program data |
Where Levels wins
Be fair to Levels: if you're brand new to metabolic health and want to be taught, its articles, podcast, and in-app education are excellent. The community keeps some people accountable, Android users are covered, and the membership bundle is convenient if you'd rather buy everything in one place.
Where spike wins
Measurement over gamification. A meal grade of "6/10" is a summary judgement. spike shows you the actual curve: you started at 95, peaked at 147 forty minutes in, and took two hours to come back down. That's the level of detail that changes behavior, because next week you can test the same burrito with half the rice and watch the curve flatten.
Cost. Sensors are already expensive. spike adds $129.99 a year on top of the sensor you were buying anyway, with a free trial. Levels adds a recurring membership before you've bought a single sensor.
Privacy. spike reads glucose from Apple Health on your device with your permission, and never sells or shares health data. There's no server-side health profile being built to feed a program.
Purpose-built for OTC reality. Stelo data reaches Apple Health on a roughly 3-hour delay. spike's whole model (analyze the complete response, then notify) is designed for that, so nothing about the experience feels broken or laggy.
The bottom line
Choose Levels if you want a guided lifestyle program with education and community, and the membership price doesn't bother you. Choose spike if you want the sharpest per-meal answers from the sensor you already own, at a fraction of the cost. If the question in your head is "what does this food do to me," spike answers it more directly, more precisely, and for less money.
your sensor already has the data.
spike turns it into answers, one meal at a time. Free trial on the App Store.
Download on the App Storespike is a wellness app, not a medical device. It does not provide medical advice, diagnosis, or treatment. Levels details are based on publicly available information as of July 2026 and may change; check levels.com for current pricing and features. spike is not affiliated with Levels.