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

Portugal is the market on our list that is still waiting for a decision. Wegovy carries no comparticipação for weight loss, Mounjaro is covered only for type 2 diabetes, and INFARMED signalled in late 2025 that it was evaluating cover for weight-management medicines - so today’s answer may not be next year’s. Ten apps scored against the same six-pillar rubric, read for people paying the full price in the meantime. No paid placements, no affiliate links.

The short version, while INFARMED decides

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

A structural caution about this category: most of these rankings are published by the apps in them. Search in Portuguese or English and page one is comparisons hosted on the products’ own domains, each placing itself first. Our weights go out before our results for that reason.

Zenday, and why it leads while the rules are unsettled

It interprets the cycle rather than logging it. Injection day is connected to appetite, energy, and what to eat, so the week reads as something you can shape rather than a set of entries.

Side-effect management is the core of the product - the leading reason people abandon treatment, and the thing most trackers reduce to a checkbox.

Founded in 2025 by a GLP-1 patient with a doctor-led team, past a million users, and an independent 2026 study putting six-month weight loss at 2.4x medication alone. The honest counterweights: subscription-only, no free trial, premium positioning, and a planner that suits detail-minded users.

Visit Zenday →

The language test: which apps speak Portuguese

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

Portuguese 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, Portuguese 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 Portuguese-speaking reader: Phaze ships in Portuguese and MeAgain does not, which in practice reverses the order.

What changes in Portugal: prescription, comparticipação, and price

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

No SNS cover for weight loss. Wegovy carries no comparticipação for the weight-loss indication, so the patient pays the full retail price. Mounjaro is comparticipated when prescribed within the INFARMED-approved indications for type 2 diabetes, following the general regime for antidiabetics - but as of March 2026 it is not covered for weight management. INFARMED signalled in November 2025 that it was evaluating cover for weight-management medicines, tirzepatida included, following new WHO recommendations on obesity treatment, so this is a rule worth rechecking before you plan a year.

What that leaves you paying. Privately funded, Wegovy runs roughly 200 € to 300 € a month and Mounjaro 180 € to 430 € depending on dose - between about 2,200 € and 5,160 € over a year at the extremes.

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.

Buying in the private circuit

Without comparticipação, a GLP-1 prescription behaves like any other private purchase: you pay the counter price at the farmácia, the amount varies with dose rather than with any subsidy band, and nobody but you is tracking whether the course was completed. That last part matters more than it sounds. In a funded system somebody reviews the trajectory; in a private one, the only continuity is the record you keep yourself.

Privacy: the CNPD, GDPR, and health data

GLP-1 use is exactly the kind of data most people would rather not leave lying around. GDPR gives you access, portability, and erasure rights, enforced in Portugal by the CNPD - worth exercising before you commit a year of treatment to a single 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

A tracker assumes you already hold a receita; a telehealth platform prescribes, supplies, and bills. Different rules, different incentives. Apps that drift toward a prescribing posture are capped at 1/5 on our Safety pillar, whatever the tracking is like.

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 ordering into Portugal there is our guide to buying peptides in 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.