Comparison

TrekDex vs Seborrheic

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

TrekDex

Features
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TrekDex turns hiking into something you can actually finish. Browse thousands of parks, preserves, and wilderness areas, each with every trail mapped from open data. Pick one and TrekDex tracks which trails you've completed โ€” so "hike the whole park" becomes a real, visible goal. RECORD YOUR HIKES Start a recording and TrekDex follows your route with GPS, on the map and in the background, then saves the path, distance, and elevation. TRACK EVERY TRAIL Completion is tracked per trail and per area. Finish a trail and it's marked done; watch an area climb toward 100%. Your progress lives on your device, no account required. SEE THE TERRAIN BEFORE YOU GO Every trail carries an elevation profile and a gain-based difficulty rating, and parking is shown for the trail you're eyeing so you know where to start. STATS THAT MEAN SOMETHING Distance, elevation, streaks, and badges โ€” built from your real recordings. BUILT FOR THE OUTDOORS Works offline once an area is loaded. Imperial or metric. A clean map with only the pins that matter. TrekDex is free. An optional tip jar says thanks. It unlocks nothing. Trail data ยฉ OpenStreetMap contributors.

About

Seborrheic

Features
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Managing seborrheic dermatitis means juggling three or four shampoos, timing how long to leave each one on, and checking every new product for hidden triggers. This app keeps track of it for you. SebDerm Tracker lays out your antifungal rotation across the week, reads product ingredient lists for Malassezia triggers, and shows how your own logs and photos change over time. ROTATION SCHEDULER See which product is scheduled today and how long to leave it on, with a countdown timer that keeps running if you put your phone down. Your wash frequency follows your hair type. When the intensive phase ends, the app prompts you to step down to maintenance. STEROID DAY COUNTER If you log a topical steroid on facial skin, the app counts the distinct days and shows you the running total against a conservative caution point โ€” something concrete to raise at your next appointment. PRODUCT SCANNER Photograph an ingredient list and see which ingredients are known to feed Malassezia, and why: fatty acids, their esters, plant oils, polysorbates, fermented ingredients. Tap any flagged ingredient for the mechanism behind it. Ingredients the ruleset does not recognise are shown as unknown, never as safe. DAILY LOG AND FLARES Log itch, redness, flaking and oiliness in about ten seconds. Mark a flare and tag what preceded it. A flare never breaks your streak. PROGRESS A weekly 0-100 self-monitoring score with every component shown, so the number can be argued with. Side-by-side photos with a camera guide that fades your previous shot over the viewfinder, so week-to-week shots line up. FOR YOUR APPOINTMENT Export a PDF of your score trend, treatments, flare history and steroid days. WHAT IS FREE, PERMANENTLY The rotation schedule, the leave-on timer, daily logging, flare tracking, the steroid day counter and every safety prompt are free and always will be. Premium adds unlimited scans, your full trend history, unlimited photos and the PDF export. PRIVACY There is no account and no server. Your logs and photos stay on this device and are never uploaded. No ads, no analytics SDK, no tracking. SUPPORT https://www.velorahealth.io/sebderm/support SUBSCRIPTION TERMS Premium Monthly โ€” $4.99 per month. Premium Annual โ€” $29.99 per year, with a 7-day free trial for new subscribers. Premium Lifetime โ€” $79.99 one payment, never renews. Prices are in USD and vary by region; your local price is shown before you buy. Payment is charged to your Apple Account at confirmation of purchase. A subscription renews automatically unless it is cancelled at least 24 hours before the end of the current period, and your account is charged for renewal within 24 hours of the period ending. Manage or cancel in Settings > your name > Subscriptions. Any unused portion of a free trial is forfeited when you buy a subscription. Terms of Use (EULA): https://www.velorahealth.io/sebderm/terms Privacy Policy: https://www.velorahealth.io/sebderm/privacy This app helps you track and organize your care. It does not diagnose, treat, cure or prevent any condition, and it is not a substitute for a dermatologist. Follow the plan your clinician gave you. See a doctor if symptoms worsen, spread, or show signs of infection such as oozing, pus, pain or fever.

Screenshots

TrekDex4 screens
Seborrheic4 screens

Verdict

The call

TrekDex and Seborrheic are too close to call on the numbers: across 5 compared parameters โ€” price, ads, in-app purchases and device support among them โ€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. TrekDex sells 3 one-off in-app purchases and Seborrheic sells 3 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
TrekDex versus Seborrheic: the parameters behind the verdict, then further details
ParameterTrekDexSeborrheic
PriceFreeFree
Update frequencyFortnightlyโ€”
AdsNoNo
In-app purchasesYesYes
DevicesiPhoneiPhone
Requires iOS18.017.0 โ€” better
Further details โ€” not scored
Size8 MB3 MB
Age rating4+12+
DeveloperQUENTIN JOHN IVANKICNgo Pham Huy

In-app purchases

3 purchases

TrekDex

One-time3
  • Trailhead Tip$1.99
  • Summit Tip$4.99
  • Base Camp Tip$9.99
3 purchases

Seborrheic

Subscriptions2
  • Premium Monthly$4.997 Days
  • Premium Annual7 Days trial$29.991 Year
One-time1
  • Premium Lifetime$79.99

Questions

Is TrekDex free?
TrekDex is free to download, with in-app purchases available.
Is Seborrheic free?
Seborrheic is free to download, with in-app purchases available.
Do TrekDex or Seborrheic have ads?
Neither TrekDex nor Seborrheic shows ads.

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