The Phaze alternative for people who want their whole week to make sense
Looking for a Phaze alternative? Holt lines up meal photos and side effects with your dose days, suggests your next injection site and speaks 15 languages.
| Holt | Phaze | |
|---|---|---|
| Languages | 15 | 8 |
| Next injection site | Suggested from your rotation | Six areas; rotation and prep checklist (per website) |
| Report for appointments | Doctor-visit PDF (30d/90d/full history) with suggested questions | PDF report for appointments |
| Meal photo scan | Calories, protein, fiber, carbs and fat | AI meal log by photo or voice; first one free, unlimited with Pro |
| Side effects | Severity sliders lined up against your dose days | 40 side effects with severity |
| Estimated medication-level chart | Yes (7d/30d), with last- and next-dose countdown | Estimated level chart and dose cycle ring |
| Live Activity and widgets | Yes | Yes |
| Apple Health | Sync (steps, workouts, weigh-ins) | Sync with a switch per metric |
| Apple Watch | Not offered | Yes |
| AI chat | Not offered (Otto is a mascot) | Ember; 3 messages free, unlimited with Pro |
| Platforms | iPhone | iPhone, iPad, Apple Watch; Android (per website) |
| Price | Free download; optional subscription $7.99/wk, $14.99/mo or $49.99–$69.99/yr | Free tier; Pro $4.99–$5.99/mo or $34.99–$44.99/yr |
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Holt
Our top pickBest for: iPhone users who want meals and side effects to explain their dose days, in their own language · Platforms: iPhone
Holt is built around the rhythm of a GLP-1 week. A Live Activity reminds you on shot day, the treatment screen shows an estimated medication-level chart with a countdown to your next dose, and Otto suggests the next spot in your injection rotation. Snap a meal and Holt estimates calories, protein, fiber, carbs and fat. Rate side effects by severity, see them against your dose days, then turn weeks of logs into a doctor-visit PDF with suggested questions.
Pros
- Meals, side effects and doses on one timeline, so shot-day patterns show up on their own
- Five-nutrient meal photo scan for checking you're eating enough on a quieter appetite
- Doctor-visit PDF covering 30 days, 90 days or your full history, with suggested questions
- Suggested next injection site, a Live Activity and widgets
- Available in 15 languages
Cons
- iPhone only for now
- Some features are part of the optional subscription
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Phaze
Best for: Apple Watch wearers and people who want free dose tracking with an AI chat on the side · Platforms: iPhone, iPad, Apple Watch, Android
A GLP-1 tracker for shots and pills with an estimated level chart, injection sites across six areas, 40 side effects with severity, food goals, progress photos, streaks and a PDF report. Its AI chat, Ember, talks through the logs you choose to share.
Pros
- Apple Watch app with complications, plus Android per its website
- Dose tracking for your first medication is free, per the listing
Cons
- The App Store listing shows 8 languages, against Holt's 15
- A next-injection-site suggestion isn't listed
- AI meal logs beyond the first and more than one medication need Pro
It's the evening of day two after your shot. You've logged the dose, ticked a few side effects and maybe a glass of water. But you still can't answer the question you actually care about: is this queasy, not-hungry feeling something that happens every week, and are you eating enough to get through it?
A quick note: this page is written by the team behind Holt. Phaze details come from its App Store page and website, checked on November 1, 2026.
Why do people look for a Phaze alternative?
Phaze does a lot. It logs doses, charts estimated levels, tracks food goals and has an AI chat. When people go looking for something else, it's usually not about missing features. It's about how the week fits together:
- They want the "why", not just the log. Side effects and meals that line up with dose days, so a pattern becomes visible.
- They want the app in their language. Phaze's App Store listing shows 8 languages.
- They want less to remember on shot day. Not just where the last shot went, but where the next one should go.
Why people switch to Holt
Holt starts from your dose day and lines everything else up against it. That one design choice is what makes the rest work.
- Side effects you can measure. Slide nausea, constipation, heartburn, food noise, appetite or fatigue to a severity, or add your own. They sit beside your dose days, so "day two is always rough" becomes something you can see.
- Meals in one photo. Holt estimates calories, protein, fiber, carbs and fat from a picture of your plate, and the Home summary shows protein, fiber, water and calories against your goals.
- Your next injection site, suggested. Pick arm, stomach or thigh, left or right, and Otto suggests the next spot in your rotation. Phaze lists site rotation and a prep checklist; we couldn't find a next-site suggestion.
- A report with the questions already in it. Holt turns 30 days, 90 days or your full history into a doctor-visit PDF, with suggested questions for your prescriber.
- Fifteen languages, plus weight trends, widgets, a Live Activity and Apple Health sync.
What changes when you switch?
You keep the core of a GLP-1 tracker: shot and pill logging with reminders, an estimated medication-level chart, injection sites, meal logging, a side-effect log, weight, widgets, a Live Activity and Apple Health. Phaze and Holt are close on many of these, so the change is less about features and more about focus.
What changes is that Holt puts food and side effects at the center of the week. The photo scan gives you five nutrients, the severity sliders give each symptom a number, and the doctor-visit report adds questions you can take into the room.
What you'd leave behind is Phaze's Apple Watch app, its Android version (per its website), Ember, progress photos, streaks and lab entries. Neither listing describes importing from the other app, so most people start fresh on their next shot day.
Stay with Phaze if…
You log from your wrist, you're on Android, or you'd miss talking things through with Ember. Phaze also lists free dose tracking for your first medication, which is a fair reason to stay if that's all you need. If those aren't what you reach for, Holt is worth one dose cycle.
What we'd track in your first two weeks with Holt
- Every dose and site. Let Otto suggest the next spot and see whether the rotation sticks.
- A photo of most meals. Watch protein and fiber against your goals, especially the two days after a shot.
- Side effects with a severity. A quick slide on the worst day gives the timeline something to show.
- Weight two or three mornings a week, so the trend has a shape without becoming a daily verdict.
- One doctor-visit report before your next appointment, compared with what you'd normally bring.
Whichever app you use, it records what you were prescribed and how you felt. Questions about the dose itself belong with your prescriber or pharmacist.
See it in Holt
Real screens from the app — the same places you’ll log, review and share.

Your day at a glance 
Medication level and next dose 
Snap a meal, get the protein
Frequently asked questions
What's the best Phaze alternative on iPhone?
We make Holt, and we think it's the best fit if you want meals and side effects lined up with your dose days. It adds a suggested next injection site, a doctor-visit PDF with questions for your prescriber, and 15 languages.
Does Holt have an Apple Watch app like Phaze?
No. Holt is an iPhone app with a Live Activity and home-screen widgets. If logging from your wrist matters most, Phaze lists an Apple Watch app.
Is Holt free like Phaze?
Holt is free to download, with an optional subscription for some features. Phaze lists dose tracking for your first medication as free, with Pro for more. Check each App Store page for prices in your region.
Can I move my Phaze data to Holt?
Neither listing describes a direct import from the other app. Weigh-ins can come into Holt through Apple Health; most people start logging doses in Holt on their next shot day.
Sources
- Phaze: Weight & GLP-1 Tracker (App Store) — Apple App Store
- Phaze website — ZEIT Tecnologia
- GLP-1 Tracker & Shot Log - Holt (App Store) — Apple App Store
Keep reading
- Best GLP-1 Tracker AppsThe best GLP-1 tracker apps for 2026, compared. Why Holt is our top pick for iPhone, and where MeAgain, Shotsy, Glapp and MyFitnessPal fit instead.
- GLP-1 Injection SitesWhere to inject a GLP-1 like Wegovy or Zepbound, what the labels say about rotating sites, and a simple way to keep track of where you injected last.
- GLP-1 Food TrackerA GLP-1 food tracker that logs meals from a photo, estimates calories and protein, and shows how what you ate lines up with shot days and side effects.
- Side Effect TrackerA GLP-1 side effect tracker for iPhone. Rate nausea, constipation, fatigue and more on a slider, add your own, and see how symptoms line up with dose days.