Comparison

INR Tracker vs Aera

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

Head to head
About

INR Tracker

Features
Read full description

INR Tracker is a personal logbook for people taking warfarin. It records the INR results, doses, vitamin K, activity, and events you enter, and shows them back to you as lists, charts, and a printable report — nothing more. What you can record - INR test results, with the date - Your warfarin dose schedule as a weekday pattern, and which doses you actually took — the weekly total is worked out automatically from what you enter, never typed in separately - Vitamin K intake, from a food reference list or as a precise figure you enter yourself - Physical activity — type, duration, and intensity - Body weight and alcohol units, one figure per day - Other health events, such as a new or stopped medication, illness, or a change in weight, as a dated entry Vitamin K foods Browse the app's list of 105 foods, with the vitamin K1 figures USDA FoodData Central holds for each, per portion and per 100 g, by category or with the most vitamin K per portion first. Reminders Set your own schedule for test reminders and clinic-report reminders. Reminders fire on the schedule you set. Charts and a timeline See your recorded readings, doses, vitamin K, and activity laid out on shared timelines you can read side by side. You see exactly what you entered — nothing is scored, labelled, or rated. One time range sets every chart but consistency, which always shows 12 weeks. A report for your clinic Generate a printable PDF of your recorded data to bring or send to your clinic, and mark reports as sent. Your data, on your device Everything you record is stored encrypted on your device. There is no account, no cloud sync, and no advertising or analytics tracking of any kind. Export a backup any time, encrypted if you give it a passphrase, and restore it later. Photos you attach are stored encrypted on your device too, with location data removed, and are included in the backups you make. Workouts and weight you import from Apple Health are stored the same way: the app reads them only while you use Import from Health, never writes anything to Apple Health, and never sends them to us or anyone else; they leave your device only in a backup, export or report you make. When you scan your meter, the photo is read on your device by Apple's built-in text recognition and is not kept. What this app does not do This app records what you enter. It does not calculate a dose, interpret a result, or predict an outcome. It does not check for drug interactions. Decisions about your dose and your care are your clinic's, not the app's. INR Tracker is not a substitute for professional medical care and is not a medical device. Your INR timeline chart is free. A one-time purchase unlocks five further charts — weekly dose, vitamin K and activity on shared timelines with it, plus consistency and an INR range summary — two charts that put your recorded weight and alcohol units on a timeline with your INR, importing workouts and weight from Apple Health (read only, while you use the import screen), a "since your last report" summary with a detailed clinic email, the PDF clinic-report export, a printable dose calendar (a month of planned doses from your recorded schedule), an annual logbook (a year of your records, month by month), photos attached to INR readings, dose schedules and health events (a meter display or a clinic dose letter, for example), scanning your meter's display with the camera to fill in an INR reading, which you check and save yourself, a home-screen widget with today's dose, your next test day and the days until your next clinic report, matching lock-screen widgets that never show the dose amount, and Siri requests to log today's dose or an INR reading, which the app asks you to confirm before anything is recorded. The lock-screen widgets and Siri requests need iOS 16 or later. Recording (weight and alcohol included), reminders, the Vitamin K foods list, emailing a reading to your clinic, and full backup/restore are free, always.

About

Aera

Features
Read full description

A running plan that fits your life. Aera helps you train with purpose, without tying every workout to a fixed day. Whether you're building a running habit or preparing for a 5K, 10K, half marathon or marathon, your plan starts with your current ability, goal and available time. KNOW WHAT TO RUN TODAY Get a suggested workout, see the alternatives and choose what fits. Short on time? Adjust today's session. Feeling unwell or taking a break? Update your status so your training can respond. TRAIN YOUR WAY Explore a flexible weekly collection of runs, with clear targets and a purpose for each session. Choose your running frequency and long-run preference, then follow your plan through its training phases. GUIDANCE AS YOU GO Follow structured workouts on iPhone with step-by-step targets, spoken cues and GPS recording. Use Apple Watch for workout guidance on your wrist, including downloaded sessions when you leave your phone behind. MAKE SPACE FOR LIFE Add holidays and other time away. Choose lighter training, easy running or a break, preview the changes and return to your usual plan afterwards. SEE YOUR PROGRESS Look back at your runs, routes and consistency. Follow your fitness estimate over time and use recent results to keep your training targets relevant. YOUR TRAINING, ON YOUR DEVICES No Aera account is required. Your training plan and running history stay on your devices. Apple Health integration is optional. You can turn usage analytics off, and sharing health-related goal categories requires your separate agreement. MEMBERSHIP Full training access requires a monthly or annual subscription. A free first training week or a seven-day subscription trial may be offered to eligible new users. Available access, prices and trial eligibility are shown in the app before purchase. Payment is charged to your Apple Account. Subscriptions renew automatically unless cancelled at least 24 hours before the current period ends. Manage or cancel your subscription in your Apple Account settings. Aera provides general running guidance, not medical advice. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

INR Tracker4 screens
Aera4 screens

Verdict

The call

The clearest difference is update cadence: Aera at daily against INR Tracker's every 3 days. INR Tracker's advantage is iOS requirement (15.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. INR Tracker sells 1 one-off in-app purchase and Aera sells 5 in-app purchases, starting at $13.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

INR Tracker ships an update every 3 days, Aera daily. Both last shipped on November 6, 2026.

Scorecard2 real differences · 6 level
INR Tracker versus Aera: the parameters behind the verdict, then further details
ParameterINR TrackerAera
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 3 daysDaily — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPodiPhone, Apple Watch
Requires iOS15.0 — better18.0
Further details — not scored
Size43 MB34 MB
Age rating17+17+
DeveloperSTEFAN TULACTech With Nikola Ltd

In-app purchases

1 purchases

INR Tracker

One-time1
  • Five more charts, clinic PDF$4.99
5 purchases

Aera

Subscriptions5
  • Aera Monthly7 Days trial$13.991 Month
  • Aera Monthly$13.991 Month
  • Aera Annual7 Days trial$89.991 Year
Show 2 more
  • Aera Annual$89.991 Year
  • Aera Annual1 Year trial$89.991 Year

Questions

Is INR Tracker free?
INR Tracker is free to download, with in-app purchases available.
Is Aera free?
Aera is free to download, with in-app purchases available.
Do INR Tracker or Aera have ads?
Neither INR Tracker nor Aera shows ads.
Which is updated more often, INR Tracker or Aera?
INR Tracker ships an update every 3 days, and Aera daily. Most recently, INR Tracker was updated on November 6, 2026 and Aera on November 6, 2026.

Other comparisons