Comparison

Symptom Tracker by TracknShare vs PI

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

Head to head
About

Symptom Tracker by TracknShare

This app allows users to track various aspects of their lives, including health, mood, sleep, and food. It offers customizable items, powerful graphing tools, and data export to help users understand trends and make informed changes.

Highlights
  • Customizable tracking items
  • Icon and number entry formats
  • Powerful graphing and trend analysis
  • Visual calendar view
  • Data export
  • Password protection
Features
Read full description

Track Visualize Act - revolutionary life tracking. Thousands use TracknShare for symptom tracking, self-help, coaching, teaching, care: regular folks, US olympic athletes, people with chronic pain, rheumatoid arthritis, fibromyalgia, ADHD. Excellent reviews from our users and from >> University of Nebraska-Lincoln Tech EDGE >> Mac Life >> Psychology Today >> The Best Life >> FastCompany ... Check out our website for references. Featured in FastCompany. Named best tracker for Quantified Self on MeasuredMe. Five Stars: Going on 2 years and loving it I have been using this app for nearly two years now... THIS IS MY MOST USED APP - I couldn't live without it! Due to its high level of customizability, I use it to track all kinds of things. There is no end to what you can use this app for. I love the newly designed interface. A must-have app for everyone - it should come pre-installed! How to use TracknShare Track anything that matters to you - Just one tap to enter data - Capture notes along the way - Share results & notes - View powerful graphs, spot trends - Understand how things are related - Make changes to your life and measure results KEY FEATURES 5 categories are already set up: My Health Items - My Mood Items - My Sleep Items - My Food Items Create your own custom items from scored icon sets. Available scales: not at all -> very much, pain, severity, completion, bad -> good, grades, level, weather, in love, low -> high, light -> heavy, note items that store photos Icons & numbers for keeping track: 60 scored icons to describe how you do, different formats for number entry, more than 250 icons total Powerful graphs let you compare different items at a glance in vertical and horizontal view. Graphs by days, weeks, months Visual Statistics Tap to cycle through ∅ Averages ∆ Max ∇ Min ∑ Totals ⊥ Last Visual Calendar of all values and notes at a glance. Take screenshots of your graphs and share via email Data export Password protection Users of TracknShare Lite Lite allows 12 entries per item. Set up and all entries get moved from Lite to Pro. We offer Lite to help you decide if this app is right for you. Illustrated user guide at www.tracknshareapp.com The Track & Share Movement on Facebook http://www.facebook.com/ClickPod Five Stars: Fantastic..so flexible This is the best app I have found to track things... I have chronic migraines & this app has been the most useful to track migraine related things as well as much more! Five Stars: Incredibly Powerful App Every once in a while you find an app that changes your life. Sounds extreme but it's true ... This program is simple but its configurability makes it powerful. The power comes from configurable items, groups, screens, combined with powerful reporting, graphing, and exporting tools - with everything simple and intuitive. I have selected 12 things across the following areas to track: eating habits, weight, sleeping, exercise, vitamins, etc. Then I set up a screen of the 3-4 things things to remember first thing in the morning, during the day, in the evening, and then a wrap up screen to review before I go to sleep.Even when I get tied up and don't make entries for a day or two, that's ok - I see the overall trend and just start back up again Five Stars: One of the most useful apps in the entire iTunes catalog! Track and Share is brilliant! I love it! I have a knowledge of stats so understand the concepts they've used; the implementation is clean, straightforward, and effective and simplifies the process of collecting and analyzing data so anybody can do it, easily, AND use the results for positive change. Congratulations to Track and Share for creating one of the most useful apps in the entire iTunes catalog!

About

PI

Features
Read full description

PI-Support is a mobile platform designed by senior Principal Investigators (PIs) to accomplish the following tasks: * save PIs and their site teams time and effort, * support Junior Investigators and trainees, * increase patient engagement and retention, * limit screen failures, * broaden study awareness, * integrate local HCPs and * improve data quality. It largely achieves these goals by empowering PIs and maximizing their involvement. Specifically, it enables PIs to select and prioritize which study criteria they want displayed on their colleagues’ cell phones or mobile devices (making pre-screening in busy office clinics and/or hospital ward rounds much easier for all concerned); it extracts from study protocols the answers to common patient queries (obviating the need for PIs and Sub-Is to locate and review extensive study protocols); it helps to ensure the right patients are enrolled into the right trial by offering side-by-side comparisons of each competing trial; and increases study awareness by enabling site teams to share selected study information with their community-based referral networks. Finally, intra- and inter-site bulletin boards allow PIs and SCs to discuss their local and study-wide concerns/solutions with other site PIs and SCs, CRAs and study sponsors. Overall, PI-Support can be used as a stand-alone tool or seamlessly integrated into existing CTMS to provide broad spectrum, site support.

Screenshots

Symptom Tracker by TracknShare4 screens
PI4 screens

Verdict

The call

The clearest difference is price: PI at Free against Symptom Tracker by TracknShare's $4.99. PI also leads on update cadence (fortnightly vs every 2 months). Symptom Tracker by TracknShare's advantage is iOS requirement (10.0 vs 12.0). On 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

PI is free to download; Symptom Tracker by TracknShare costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Symptom Tracker by TracknShare ships an update every 2 months, PI fortnightly. The most recent releases landed on September 24, 2026 and June 20, 2026 respectively.

Scorecard3 real differences · 7 level
Symptom Tracker by TracknShare versus PI: the parameters behind the verdict, then further details
ParameterSymptom Tracker by TracknSharePI
Price$4.99Free — better
Rating4.1 (66 ratings) — better
Positive reviews75.9% of reviews
Number of ratings66 — better
Update frequencyEvery 2 monthsFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS10.0 — better12.0
Further details — not scored
Size30 MB21 MB
Age rating12+17+
DeveloperTrack & Share Apps, LLCRefuah Solutions Ltd

Bugs and requests

Symptom Tracker by TracknShare

Reported bugs

4 issues
  • Inability to edit or delete past entries
  • Data loss or corruption after app updates
  • Keyboard covering input fields on iPad
  • Inconsistent or confusing user interface

Requested features

5 requests
  • Automatic data backup and sync across devices
  • Improved graphing and data analysis tools
  • More icon and color customization options
  • Streamlined data entry process
  • Integration with Apple Health or other health platforms

PI

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Symptom Tracker by TracknShare

No in-app purchases

None

PI

No in-app purchases

Questions

Is Symptom Tracker by TracknShare free?
Symptom Tracker by TracknShare costs $4.99, with no in-app purchases.
Is PI free?
PI is free to download, with no in-app purchases.
Do Symptom Tracker by TracknShare or PI have ads?
Neither Symptom Tracker by TracknShare nor PI shows ads.
Which is updated more often, Symptom Tracker by TracknShare or PI?
Symptom Tracker by TracknShare ships an update every 2 months, and PI fortnightly. Most recently, Symptom Tracker by TracknShare was updated on September 24, 2026 and PI on June 20, 2026.

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