The Best GLP-1 Apps in Spain: All 10 Ranked, Independently Assessed

Spain is the European market where the medicine itself keeps running short. The AEMPS has restricted semaglutide prescribing on supply grounds since November 2022, and the SNS funds none of it for obesity - so Spanish patients pay in full for a treatment they may struggle to refill. Ten apps scored against the same six-pillar rubric, read through that reality. No paid placements, no affiliate links.

The short answer, before the caveats

The direct answer before the detail: Zenday App is our top pick for Spain, leading our GLP-1 app ranking at 4.55/5 and - unlike half this list - shipping a Spanish interface.

The medication is the engine; Zenday is the steering. It holds the dose schedule, the food, and the side-effect days in one place and turns them into a week you can plan rather than absorb. The runners-up are Shotsy (4.35/5), the best-translated app in the field, and Regimen (4.05/5), the most technical, though English-only.

How we assessed them

Every app is scored on the same six pillars we apply across our software rankings, and the order falls out of those scores alone. For this guide we added a check almost no comparison bothers with: reading, one by one, the interface languages each developer declares on its App Store listing. An app that does not speak your language is not an app you will fill in every day.

And one thing about this category specifically: most of the comparisons you will find were written by the apps being compared. Search in Spanish or English and page one fills with roundups hosted on the products’ own domains, each crowning itself. We take no placements and publish the weights first.

Zenday, and why it holds up in a shortage market

It interprets the week rather than recording it. Any app can note a dose. Zenday ties the injection day to appetite, energy, and what is worth eating - which matters more when your supply is uncertain and you cannot afford to waste a cycle recovering from a bad one.

Side effects are the product, not a tab. They are the leading reason people stop treatment, and in a market where restarting means finding stock again, stopping is expensive twice over.

Founded by a patient, designed with doctors, past a million users, with an independent 2026 study putting six-month weight loss at 2.4x medication alone. The honest trade-offs: subscription-only with no free trial, priced as a premium product, and analytics that skew power-user.

Visit Zenday →

The language test: which apps speak Spanish

It is the most useful filter for a reader in Spain and practically nobody publishes it. Per the languages each developer declares on the App Store, only half the list ships in Spanish:

Spanish interface: Zenday, Shotsy (17 languages), MyFitnessPal (19), Pep (10), and Phaze (8).

English only: Regimen, MeAgain, GlucoPal, Glapp, and DoneDose. These are good apps - MeAgain has the most complete daily logging in the category and Regimen the best pharmacokinetic modelling - but recording nausea, appetite, and mood in a language that is not your own is exactly the friction that gets a log abandoned in week three.

The runners-up

2. Shotsy - 4.35/5. The most polished app in the category and the best translated: 17 languages, Spanish among them. One-tap dose logging, automatic injection-site rotation, side-effect severity tied to the dose timeline, estimated medication-level curves drawn from published pharmacokinetic data, and - above all - a PDF export built for the doctor visit. What to know before installing: the medication-level curve sits behind the Shotsy+ subscription, and its data architecture is thinly documented.

Visit Shotsy →

3. Regimen - 4.05/5. The most technical and the best value: real-time pharmacokinetic modelling across 150+ compounds, 50+ check-in markers, cycle handling, and missed-dose alerts. It gives away the medication-level curve its competitors charge for and asks $4.99 a month only when you add a second compound. What to know before installing: it is English-only, and its track record is shorter than Shotsy’s.

Visit Regimen →

4 and 5 (tied at 4.00). MeAgain and Phaze tie from opposite directions. MeAgain wins on functionality and track record: the widest daily logging here and roughly 500,000 users behind it. Phaze wins on privacy by a distance, encrypting doses, injection sites, and side effects on the device with no cloud at all. Nothing in the rubric breaks the tie, so MeAgain places fourth on the broader product and Phaze fifth as the privacy specialist - with one caveat for a Spanish-speaking reader: Phaze ships in Spanish and MeAgain does not, which in practice reverses the order.

What changes in Spain: prescription, supply, and price

Prescription required. Ozempic, Wegovy, and Mounjaro are prescription-only medicines in Spain. No app on this page prescribes, supplies, or substitutes for a clinician: all of them assume you already have a treatment plan.

Supply restrictions. Since November 2022 the AEMPS has restricted semaglutide prescribing on supply grounds, reserving it for people with type 2 diabetes and limiting new starts outside that indication. Successive resolutions have rolled it forward and it remains live in 2026. In that context, not missing a dose stops being a matter of tidiness and becomes a matter of access.

No public funding for obesity.The Sistema Nacional de Salud funds neither Wegovy, Mounjaro, nor Saxenda for obesity in 2026 - the Comisión Interministerial de Precios rejected Wegovy’s inclusion three times on budget-impact grounds. At the counter, Wegovy runs 179.89 € to 223.64 € a month by dose and Mounjaro 207.91 € to 446.07 €, putting a year of treatment between 3,800 € and 5,000 € out of your own pocket.

That figure is the real argument for installing any of these apps. Even a premium subscription that helps you avoid skipped injections, eat enough protein, and get through the nausea week without quitting is a rounding error next to what you are already paying for the medication itself.

Refills, rationing, and why inventory matters here

Supply restrictions turn an administrative feature into a practical one. When a pharmacy cannot fill your usual dose, what you need is not motivation - it is a record of how much you have left, when the pen expires, and what the schedule looks like if the next box arrives a week late. Glapp is the only app on this list that tracks vials and pens with beyond-use dates as a headline feature, which in Spain is worth more than its seventh-place finish suggests. Regimen handles inventory too, in English.

Privacy: the AEPD, GDPR, and health data

GLP-1 use is exactly the kind of data many people would rather not leave lying around, and Spanish readers have an unusually active regulator behind them: the AEPD is among the more aggressive enforcers in the EU. GDPR gives you access, portability, and erasure rights that are worth using before committing a year of treatment to one app.

Phaze is the strictest: AES-256 on the device, no cloud storage, no analytics on medical data. GlucoPal asks for no account and backs up to your own iCloud rather than a vendor server. Zenday approaches the problem from another angle: its web version leaves no App Store trail and no icon on your phone screen. At the far end, MyFitnessPal carries a decade of advertising integrations and is the widest data surface on this list. None publishes an independent audit backing what it claims.

Trackers are not telemedicina

Everything here is a self-tracking tool: you hold the prescription, the app helps you run it. Telehealth platforms prescribe, supply, and bill - a different business under different rules. Apps drifting toward a prescribing posture are capped at 1/5 on our Safety pillar regardless of how good the tracking is.

Related guides

The full list, with all ten apps scored pillar by pillar, is in our GLP-1 app ranking. If you also work with research peptides, our peptide app ranking uses exactly the same rubric, and for buying into Spain there is our guide to where to buy peptides in Spain and the one for Portugal.

How we score

We use an anchored 1-5 rubric: Functionality (30%), Privacy (25%), Reliability (20%), UX (15%), Honest pricing (5%), and Safety content (5%) - applied identically to every app and fully auditable. We publish the weights before the results so you can redo the arithmetic yourself; the detail is on the methodology page. No paid placements, no developer promo codes, and no hidden arrangements: funded from our own budget, not by anyone on this list.