We tested popular apps so you can pick the right one for tracking your hair growth journey.
A hair growth tracker app earns its place on your phone when it does one thing well: it makes the slow, often invisible process of regrowth or maintenance visible enough to keep you motivated. We spent several weeks testing several of the most downloaded options, comparing how they handle progress photos, density tracking, and routine logging. Hairly, Follicle, MyHairCounts, and HairGrowth emerged as the strongest for documenting a real hair journey. At the same time, two routine-focused apps proved more useful for habit-building than for tracking change over time.
This guide breaks down what each app does well, where it falls short, how the photo and data features compare, and which fits which goal, whether that’s monitoring a treatment, recovering from a transplant, or simply keeping tabs on length as you grow out a cut.
A hair growth tracker app is a structured camera roll with a memory. Instead of scattered selfies buried in your phone, the app prompts you to take a photo from the same angle and distance on a schedule, then lines those photos up so you can see change over weeks or months.
Most of the apps in this test add a layer beyond photos: treatment logs, density estimates, shedding notes, or reminders tied to your wash day or medication schedule.
The category splits into two real use cases. Some readers want to monitor regrowth from a treatment like minoxidil, a transplant, or a scalp condition. Others just want a tidy way to document length as hair grows out after a big chop or a perm. The apps below serve both groups, though a few lean hard into clinical-style tracking.
Hairly is built around the idea that a photo alone does not tell you why your hair changed. The app pairs a progress photo gallery, sorted by angle (crown, temples, hairline), with a treatment log where you record what you are using and when. Over time it surfaces trends meant to show whether a treatment is doing anything.
What worked well in testing: the angle-tagging kept our photo timeline organized in a way a plain camera roll never does, and logging a treatment next to a photo made it easier to connect cause and effect months later.
What did not work as well: the AI-generated insights felt more like a motivational summary than a clinical read, and users with early-stage thinning may find the density estimates rougher than a measured count. Treat it as a structured journal, not a diagnostic tool.
Follicle’s standout feature is the ghost-overlay camera, which places a faint version of your last photo over the live viewfinder so you can match the angle and distance before you snap a new shot. That single feature solved the biggest problem with manual progress photos: inconsistent framing that makes comparisons unreliable.
Beyond photos, Follicle logs shedding, irritation, stress, wash days, and treatments in a searchable journal and links specific photos to specific entries. The side-by-side and overlay-slider comparisons are useful for spotting subtle changes at the hairline or crown.
The tradeoff is that some of the deeper insight features and full journal-wide AI analysis sit behind a premium tier, so the free version is mainly a (very good) photo and journal tool rather than a full analytics platform.
MyHairCounts takes a different approach from the photo-first apps. It is built around hair density counting, the same measurement clinical trials use to track hair loss or growth, expressed as hairs per square centimeter rather than a visual impression. It also tracks gray percentage and dandruff over time.
The density numbers are the appeal here. Because hair density changes can show up months before a difference is visible in the mirror, the app gives readers a way to catch a trend earlier than photos alone would.
The setup is more involved than the other apps in this test, and a few testers ran into account and permission issues during onboarding, so budget additional patience if you choose this route. If you are working with a trichologist or dermatologist, MyHairCounts produces the kind of data they are likely to find useful in a consultation.
HairGrowth is narrower in scope than the other three, and that focus is the point. It is designed around the FUE, FUT, and DHI transplant timeline, with day-by-day recovery guidance, medication reminders for finasteride or minoxidil, and graft-and-zone tracking that lets you log density changes by scalp area rather than as one overall score.
For transplant patients specifically, this specificity is the strongest reason to choose it over a general tracker. The aftercare guides covering shock loss, washing routines, and sun exposure answer the exact questions that come up in the weeks after a procedure. Readers who are not recovering from a transplant or who are simply tracking natural regrowth or a styling change will find most of the app’s depth irrelevant to their situation.
| App | Best For | Photo Consistency Tools | Density Tracking | Treatment Reminders |
|---|---|---|---|---|
| Hairly | Logging treatments next to photos | Angle tagging | AI estimate only | Basic |
| Follicle | Consistent, comparable photos | Ghost overlay camera | Not included | Yes, with streaks |
| MyHairCounts | Clinical-style density data | Standard photo capture | Measured count | Not the focus |
| HairGrowth | Transplant recovery | Guided framing | By scalp zone | Stage-based |
Every app in this category shares the same blind spot: a photo or a density count tells you what changed, not why. None of these tools can diagnose a hair loss condition, confirm whether a product is responsible for a result, or replace a dermatologist or trichologist when shedding is sudden or severe. The AI-generated summaries some apps produce read as encouraging rather than clinical, and readers anxious about thinning should be careful not to treat an algorithm’s reassurance as a medical opinion.
Photo-based tracking also has a built-in limitation: lighting, hair styling, and even how recently you washed your hair can all shift how full or thin it looks in a single shot, regardless of what the app’s overlay tools do to standardize framing. Density-counting apps like MyHairCounts reduce that variability, but they ask for more setup time and a steadier hand with the camera. If your goal is solely documenting length as you grow out a shaggy bob or a wolf cut, the lighter, photo-first apps are more than enough. If you are tracking an actual loss or regrowth condition, lean toward apps with measured density data or clinical framing.
While the growth trackers above document the physical changes in your hair over time, they don’t help you figure out the daily habits that get you there. If you need guidance on maintaining and protecting your current hair, we know one more helpful app that takes the guesswork out of your daily care. HairHunt starts with a personalization quiz: the app asks you about your hair and its state, analyzes your answers, and generates custom, recommended routines that you can mark complete to visualize your progress. Alongside your routines, you will receive personalized tips and insights for your hair type. HairHunt also includes an AI virtual try-on tool letting you preview new cuts or colors on your own selfie. The app is available on both iOS and Android.
These are the questions readers ask most often when comparing hair growth tracker apps and deciding which one fits their situation.
Most stylists and the apps themselves recommend monthly photos for general growth tracking, since week-to-week change is too subtle to read reliably. Treatment or transplant tracking can justify more frequent photos in the first few months, but daily photos mostly add noise rather than insight.
It can show you a trend, not a confirmed cause. Photos and density numbers reveal whether your hair looks fuller or thinner over time, but confirming that a specific treatment is responsible requires ruling out other factors, which is where a dermatologist or trichologist adds value that an app cannot.
Density counting, like the method MyHairCounts uses, is generally considered more objective because it is not affected by lighting, styling, or camera angle the way photos are. Photos are easier and faster, which makes them better for casual tracking, while density counts suit anyone closely monitoring a clinical concern.
Not necessarily, but a lightweight photo app like Follicle or Hairly can make the grow-out phase less frustrating by showing real progress when it feels like nothing is happening. A simple monthly photo habit, even without an app, accomplishes most of the same goal.
Most offer a free tier covering basic photo tracking and journaling, with premium tiers unlocking AI insights, advanced comparisons, or unlimited history. MyHairCounts and HairGrowth lean more clinical and may involve a subscription for full density or recovery-tracking features.
A growth tracker documents your actual hair over time through photos or measurements. A try-on app like HairHunt generates an AI preview of a hypothetical style or color on your current photo. They solve different problems and work well when used together, one for monitoring change, the other for planning the next change.
Choosing the right hair growth tracker app comes down to what you are trying to learn: whether a treatment is working, how a transplant is healing, or simply how far your hair has come since you started growing it out. Pick the app that matches that specific goal rather than the one with the most features, and give it a few consistent months before judging the results.
Disclaimer: Hair results vary based on your natural hair type, texture, density, and condition. Virtual try-on images are AI-generated visualizations. They show shape and color accurately but cannot predict exactly how your hair will behave once styled by a professional. Always consult with a licensed hairstylist or dermatologist before making significant changes, especially with chemical treatments, dramatic length changes, or concerns about hair loss.
