Comparison

Allergy Tracker vs Headache Guide

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

Head to head
About

Allergy Tracker

Features
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Every allergic reaction leaves a clue. Allergy Tracker turns those scattered clues โ€” what you were exposed to, how bad it got, how long it lasted โ€” into a clear history you and your allergist can actually work with. Purchase required: Allergy Tracker requires a paid subscription (weekly or yearly) or a one-time lifetime purchase to use. This is not a pollen forecast or a barcode scanner. It is a serious reaction logbook built for one job: capturing each reaction accurately in under a minute, then showing you which triggers keep coming back. It never tells you a food is "safe" โ€” a missing entry is absence of data, not evidence โ€” and it never invents treatment advice. It gives you the record; your allergist gives you the answers. WHAT YOU GET โ€ข Log a reaction in under a minute โ€” trigger, severity 1โ€“10, symptoms, body zone, duration and the treatment you noted โ€ข Walk into every appointment with a paginated doctor-report PDF instead of "it was maybe two weeks ago?" โ€ข See which triggers actually recur: allergen breakdown with average severity, symptom frequency and severity-trend charts โ€ข Separate profiles for each family member, so your child's milk-protein history never mixes with your hay fever entries โ€ข Blood type, known allergens, emergency contact and insurance details on one Emergency Info screen โ€” findable in seconds โ€ข A daily reminder at the hour you choose, so the log stays complete enough to be worth showing a doctor PERFECT FOR โ€ข Parents managing a child's food allergy who need a clean timeline for the pediatric allergist โ€ข Newly diagnosed adults narrowing down which of five suspect foods is the real trigger โ€ข Anyone living with anaphylaxis risk who wants known allergens and emergency contacts kept in one place โ€ข People working through an elimination diet or suspected histamine or food intolerance who need dates, exposures and symptoms side by side WHY NOT JUST USE A NOTES APP? A note can hold a sentence; it cannot tell you that shellfish appears in six of your last eight severe entries, chart your severity over three months, or format itself into a report your allergist can read in ninety seconds. Structured entries are what turn "I think it's worse lately" into evidence. PRIVATE BY DEFAULT Your medical history stays on your iPhone. No account, no cloud, no analytics on your entries โ€” the doctor report is generated on your device and shared only when you choose to share it. Allergy Tracker is a personal logbook, not medical advice: for severe reactions, always follow your prescribed anaphylaxis action plan and call emergency services. FULL ACCESS Allergy Tracker requires a purchase to use. Every feature โ€” reaction logging, family profiles, Emergency Info, reminders, insights and the doctor-report PDF export โ€” is available only with a paid weekly or yearly subscription or a one-time lifetime purchase. There is no free tier. Log your first reaction today โ€” the pattern is already in your history. Give your allergist the data to find it. Terms of Use: https://leanstudio.asia/terms-of-use Privacy Policy: https://leanstudio.asia/privacy-policy Support: support@leanstudio.asia

About

Headache Guide

Features
Read full description

Gain a clearer understanding of your headaches and other recurring symptoms with Headache Guide. Record several moments throughout the day and discover patterns involving symptoms, medication, sleep, activities and environmental factors. REGISTRATION PROFILES Choose a profile for Migraine, Chronic Headache, Chronic Fatigue or Long COVID. For each profile, you decide which symptoms you want to track. Record symptoms with a severity from 0 to 10 or simply indicate that they were present. QUICK AND DETAILED RECORDING Record headaches, stabbing pains, fatigue, other symptoms, medication, activities and daily summaries. For headaches, you can record the pain score, side, location and type of pain. Choose which quick actions appear on the home screen and Apple Watch. OVERVIEWS AND INSIGHTS View your daily records in a clear calendar. Track the intensity or frequency of each symptom and see average, lowest and highest values. Charts and insights help you identify possible associations with time of day, sleep, activities, medication and daily impact. ENVIRONMENT AND WEATHER Record factors such as bright light and screen use. Optionally link current weather data using Apple Weather to explore possible associations with factors such as temperature and air pressure. Your location is not stored. MEDICATION AND REMINDERS Manage daily and other medication, set medication times and optionally receive a reminder for a follow-up measurement. Reminders can be configured separately for each day, for weekdays and weekends, or identically for every day. APPLE HEALTH AND SLEEP Import sleep data, available sleep metrics and workouts from Apple Health. If no sleep data is available, you can manually record bedtime, wake-up time, sleep duration, interruptions and sleep quality. Supported symptoms can also be shared with Apple Health. APPLE WATCH Record symptoms, headaches, medication and activities directly on your Apple Watch, even when your iPhone is not nearby. Widgets and the Watch complication provide quick access to the app. REPORTS AND CONSULTATION MODE View averages and trends over a custom period. Export your data as PDF or CSV and use Consultation Mode to present important information clearly during an appointment with a doctor or healthcare professional. PRIVACY AND SECURITY Your health data is processed locally on your own devices and within Apple Health. Protect the app using Face ID or a passcode, and create an encrypted backup that you can save in a location of your choice. TRY EVERYTHING FREE FOR 14 DAYS When you first use the app, you receive 14 days of free access to all features. No payment is required, and the trial does not automatically convert into a purchase. After the trial, the free basic features remain available, including manual recording, Today, Diary, access protection and encrypted backups. The one-time Headache Guide Complete in-app purchase permanently unlocks all advanced features. There is no subscription. Headache Guide helps you record and discuss your health information. The app does not diagnose conditions, determine causes or replace professional medical advice.

Screenshots

Allergy Tracker4 screens
Headache Guide4 screens

Verdict

The call

The clearest difference is in-app purchases: Allergy Tracker at none against Headache Guide's 1. Headache Guide's advantage is update cadence (every 2 months vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

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. Headache Guide sells 1 one-off in-app purchase. Allergy Tracker asks for nothing beyond the download.

UpkeepUpdate frequency

Allergy Tracker ships an update every 4 months, Headache Guide every 2 months. The most recent releases landed on November 10, 2026 and November 6, 2026 respectively.

Scorecard2 real differences ยท 4 level
Allergy Tracker versus Headache Guide: the parameters behind the verdict, then further details
ParameterAllergy TrackerHeadache Guide
PriceFreeFree
Update frequencyEvery 4 monthsEvery 2 months โ€” better
AdsNoNo
In-app purchasesNo โ€” betterYes
DevicesiPhoneiPhone, Apple Watch โ€” better
Requires iOS17.017.0
Further details โ€” not scored
Size4 MB32 MB
Age rating4+17+
DeveloperLEAN ASIA CO., LTDArjen Broeze

In-app purchases

None

Allergy Tracker

No in-app purchases

1 purchases

Headache Guide

One-time1
  • HoofdpijnWijzer Compleet$8.99

Questions

Is Allergy Tracker free?
Allergy Tracker is free to download, with no in-app purchases.
Is Headache Guide free?
Headache Guide is free to download, with in-app purchases available.
Do Allergy Tracker or Headache Guide have ads?
Neither Allergy Tracker nor Headache Guide shows ads.
Which is updated more often, Allergy Tracker or Headache Guide?
Allergy Tracker ships an update every 4 months, and Headache Guide every 2 months. Most recently, Allergy Tracker was updated on November 10, 2026 and Headache Guide on November 6, 2026.

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