What makes PepLabo a better Cronometer alternative?
Cronometer answers what you ate down to the last mineral. PepLabo answers what you injected, how much is left and when the next dose is due. These are the places where that difference matters.
It tracks what you inject, not only what you eat
PepLabo opens on your next dose: the compound, the time and the vial it will come from. Logging it takes a tap, in the app or, on Pro, from a widget or the Live Activity. Food, water, weight and side effects fill in the rest of the day around that entry.
Cronometer’s listing and website describe nutrition, fitness, sleep and biometrics in depth [1][3], but we did not find a place for a medication, a GLP-1 or a peptide dose. If injections are part of your week, that record would need to live somewhere else.
Bottom line: PepLabo puts the injection at the centre, which is where it sits in your routine.
Vials and reconstitution, handled for you
A peptide vial often starts as powder that you mix with bacteriostatic water. PepLabo’s calculator takes the vial amount, the water you added and the dose your clinician set, and gives you the units to draw on an insulin syringe. Save the vial and every logged dose comes off its total, so you see it running low in good time.
We did not find vial tracking or a reconstitution tool in Cronometer’s listing or website [1][3]. For anyone who mixes vials, PepLabo removes the paper notes and the extra calculator app.
Bottom line: the arithmetic of mixing and drawing lives in the same app as the dose log.
Sites, cycles and more than one program
Injection routines have a shape. You may run a GLP-1 weekly and a peptide daily, take a planned break after a few weeks, and move between abdomen, thigh and arm. PepLabo keeps each program separate with its own schedule, on and off periods and weeks off, and it saves the site with each dose so the rotation is easy to follow.
An estimated level chart, based on a half-life you enter from your own source, shows how your logged doses overlap over time. It reflects your log and is not medical advice.
Bottom line: PepLabo keeps the structure of your routine visible instead of leaving it in your head.
Reminders built around doses
PepLabo can send a reminder before a dose, another at the scheduled time and a third if the dose still has not been logged. That last one is what turns a forgotten shot into a late one rather than a missed one.
Travel mode on Pro lets you choose the destination time zone and how the shift is handled, and dose reminders adjust to match. We did not find medication or dose reminders in Cronometer’s listing or website [1][3].
Bottom line: PepLabo’s reminders follow your dose schedule, at home and across time zones.
Side effects linked to the dose
Cronometer’s website describes tracking biometrics from pain symptoms to gut health and blood sugar [3], which is useful for spotting patterns in general health. PepLabo approaches symptoms from the injection side.
A few hours after a dose, it can ask how you feel. The check-in records energy, sleep, mood, symptoms and an overall severity, and it can be attached to any dose from the past 72 hours. Over time, you can see which doses came before which notes, without lining up two apps by hand.
Bottom line: in PepLabo, a side effect is recorded next to the dose it may belong to.
Private without an account, with a report when you need one
Cronometer’s website says it encrypts all data and enforces strict access controls [3]. PepLabo takes a different route: you can track without creating an account, records stay on your phone, and the app contains no analytics, advertising or tracking SDKs. Sign-in is only needed for Pep AI, which shows what it will send before your first message and never sends dose amounts.
For appointments, PepLabo Pro creates a PDF of your dose log. A full data export is free on every plan, and it is also how you move to a new phone.
Bottom line: PepLabo keeps injection records off remote accounts by default and still gives you a clean report to share.
Six languages and a character that keeps you going
PepLabo runs in six languages, while Cronometer’s App Store listing shows English only [1]. For anyone more comfortable outside English, labels like vial, units and site matter.
Day to day, PepLabo keeps a logging streak, awards badges for milestones such as a first weigh-in, and on Sundays Pep, the character inside the app, recaps your week. Pep notices when water is low and celebrates streaks with you; on Pro, Pep AI chat can summarise your programs and records, and it never gives dosing advice.
Bottom line: PepLabo is easier to keep up with in your own language and makes the daily habit feel lighter.
Where Cronometer is still better
For nutrition detail, Cronometer covers ground PepLabo deliberately leaves to specialists:
- Tracking of 95+ vitamins and minerals against personalised targets, with nutrient gaps highlighted [1].
- A curated database of more than 1.1 million verified foods [1].
- Apple Watch sync and connections to Fitbit, Garmin, Oura, Whoop and more, with sleep insights [1].
- A web version and a native iPad app alongside the phone apps [1][3].
- A fasting tracker and recipe importer on Gold [1], and Cronometer Pro for dietitians [3].
Bottom line: PepLabo comes out ahead in another situation: when the dose, the vial and the cycle are what you have to get right every week.
What you pay for, and what is already free
In PepLabo, the daily tools of an injection routine cost nothing: dose logging, reminders, vials, injection sites, the reconstitution calculator and the research library. PepLabo Pro is $9.99 a month or $59.99 a year in the US, with 3 days free on the yearly plan for eligible new subscribers. Pro adds access to Pep AI chat, meal estimates from a photo, voice or restaurant menu, Apple Health, Health Connect and WHOOP data, widgets, travel mode and PDF reports.
Cronometer is free to download and scans barcodes for free; Gold adds photo and voice logging, a fasting tracker, recipe import, deeper insights, ad-free use and Crono Coach [1]. Its listing does not state prices.
Bottom line: if the injection routine is your main need, PepLabo’s free plan already covers it.
Using PepLabo next to Cronometer, or by itself
If you rely on Cronometer for micronutrients, keep it. Let it handle food detail and give PepLabo the injection side: doses, vials, sites, cycles and side effects. There is no direct link between the two apps, so each does its own job.
If precise nutrient data is less important to you, PepLabo can cover meals as well. Barcode scanning is free, and Pro estimates a meal from a photo, your voice or a restaurant menu, logged next to your doses.
Bottom line: combine them when micronutrients are a goal in themselves; move to PepLabo alone when the routine is what needs managing.
Overall
Cronometer is a careful, detailed nutrition tracker and a good fit for anyone who wants to see every vitamin and mineral. PepLabo is the better choice when injections are the part that needs managing: peptides or GLP-1 medicines, vials to mix and track, sites to rotate, cycles with breaks and reminders that catch a missed dose. It keeps all of that in one private app, in six languages, with a free core.
Trademarks and sources
Cronometer is a trademark of Cronometer Software Inc. PepLabo has no affiliation with Cronometer Software Inc. Everything said here about Cronometer comes from its public App Store listing, Google Play page and website, read on 20 October 2026, and may have changed since. “Not mentioned in the sources we read” means we could not confirm a feature there, not that the app lacks it.
