Comparison

NeuroPortion vs Symptom Log

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

Head to head
About

NeuroPortion

This app uses AI facial analysis to provide wellness insights like hydration, stress, and sleep signals. It estimates general portion guidance based on your face data, which is processed by a third-party AI service and not stored by the app.

Highlights
  • AI facial analysis for wellness signals
  • Hydration, stress, and sleep estimation
  • General portion guidance
  • Third-party AI processing
  • No data retention by the app
Features
Read full description

Face Data Use, Sharing, and Retention NeuroPortion uses face photos solely to generate wellness insights such as hydration, stress, sleep-related signals, and general portion guidance. When you choose to run a face scan, your photo is sent to OpenAI, a third-party AI service, to estimate these wellness signals. • What face data is shared? Only the face photo you submit during the scan. • Why is it shared? We share the photo with OpenAI because their model allows us to generate on-demand wellness signal estimates (e.g., hydration clues, fatigue indicators, stress-related facial tension, etc.) based on the image. • Do third parties store this data? OpenAI does not store your face photo or derived face data. Each image is processed once, in real time, and then discarded by OpenAI. • How long is the face data retained? NeuroPortion does not store your face photos on our servers. They are used only transiently during analysis and not retained. No biometric identifiers or templates are created. • Who has access to the data? Only OpenAI processes the photo for the purpose described above. Your face data is not shared with advertisers, analytics companies, or additional third parties. You can view OpenAI’s privacy practices here: https://openai.com/policies/privacy-policy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Symptom Log

This app helps individuals manage chronic conditions by logging daily symptoms, moods, and potential triggers. It provides insights into trends and allows for easy sharing of health data with doctors. The app focuses on private, on-device storage for user peace of mind.

Highlights
  • Daily symptom logging
  • Mood tracking
  • Trigger identification
  • Doctor reports (PDF)
  • Data export (CSV)
  • Customizable symptom list
  • On-device data storage
Read full description

SymptomLog is a private daily diary for one person living with one long-term condition. Log how the day actually went in under a minute, then show your doctor a record instead of trying to remember. At setup you choose your condition — migraine, IBS and gut health, autoimmune, fibromyalgia, chronic pain, endometriosis, allergies, mental health, or something else — and your starting symptom list is built around it. WHAT ONE DAY LOOKS LIKE Tap the quick-log card on the home screen. Pick one of five moods, from Terrible to Great. Slide each symptom you track from 0 to 10. Tap anything that may have played a part: poor sleep, stress, weather change, a certain food, alcohol, exercise, a missed dose, menstrual cycle, dehydration, overexertion, travel, illness. Add a note if you want one, then save. That's the whole thing. The home screen shows your logging streak, your total days logged, and a week-at-a-glance strip, so you can see which days you missed and go back and fill them in. An optional reminder at a time you choose nudges you once a day. IT STAYS ON YOUR PHONE There's no account, no sign-up and no cloud sync. Your entries are stored on this device — no copy sits on a server, and nobody else can open your log. PREMIUM: TURN THE LOG INTO AN ANSWER • See the shape of it — trend lines, a severity breakdown, a calendar heatmap and your mood distribution across 7, 30 or 90 days. • Check your triggers — a frequency chart showing which triggers you tapped most over the period you chose. • Hand your doctor something readable — a full Doctor Report as a PDF, a single-symptom report, or a side-by-side comparison of two date ranges. • Keep the raw numbers — export everything as a CSV file. • Track what you actually have — add, remove and reorder your own symptoms. • Look back a full year instead of 30 days. You get a few minutes with your doctor. Spend them on the conversation, not on reconstructing the last three months out loud. GETTING STARTED Setup takes about a minute: choose your condition, choose the symptoms you want to start with, set a reminder if you'd like one. Daily logging and the last 30 days of history are included at no cost. Premium is available weekly or yearly, or as a one-time Lifetime purchase, whenever the charts and reports are worth it to you. The weekly and yearly plans are auto-renewing subscriptions, charged to your Apple ID at confirmation of purchase and renewing unless canceled at least 24 hours before the current period ends. Manage or cancel anytime in your account settings. A trial is offered on a plan only when your account is eligible for one. Lifetime is a single purchase with no recurring charge. Current prices are shown on the plan screen in your local currency. Terms of Use: https://sites.google.com/view/symptom-log/eula?authuser=0 Privacy Policy: https://sites.google.com/view/symptom-log/privacy-policy?authuser=0 SymptomLog is a personal tracking tool. It does not diagnose, treat or provide medical advice — always speak to a qualified healthcare professional about your health.

Screenshots

NeuroPortion4 screens
Symptom Log4 screens

Verdict

The call

The clearest difference is update cadence: NeuroPortion at every 5 days against Symptom Log's every 2 weeks. NeuroPortion also leads on ratings volume (6 vs 1). On price, rating, ads and in-app purchases 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. NeuroPortion sells 2 in-app purchases, starting at $7.99 per month and Symptom Log sells 3 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for NeuroPortion against 5.0 for Symptom Log. That said, the two scores are not equally well evidenced: NeuroPortion has 6 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

NeuroPortion ships an update every 5 days, Symptom Log every 2 weeks. Both last shipped on October 24, 2026.

Scorecard2 real differences · 8 level
NeuroPortion versus Symptom Log: the parameters behind the verdict, then further details
ParameterNeuroPortionSymptom Log
PriceFreeFree
Rating5.0 (6 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings6 — better1
Update frequencyEvery 5 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPodiPhone, iPod
Requires iOS15.115.0 — better
Further details — not scored
Size25 MB43 MB
Age rating4+17+
DeveloperCan YavasAlgoSoft Technologies Limited

Customer experience

NeuroPortion

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Symptom Log

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

2 purchases

NeuroPortion

Subscriptions2
  • NeuroPortion Pro Monthly7 Days trial$7.991 Month
  • NeuroPortionPro Yearly7 Days trial$39.991 Year
3 purchases

Symptom Log

Subscriptions2
  • Weekly Plan$2.997 Days
  • Annual Plan3 Days trial$39.991 Year
One-time1
  • Lifetime$89.99

Questions

Is NeuroPortion free?
NeuroPortion is free to download, with in-app purchases available.
Is Symptom Log free?
Symptom Log is free to download, with in-app purchases available.
Which has better reviews, NeuroPortion or Symptom Log?
NeuroPortion and Symptom Log are both rated 5.0 out of 5 on the App Store, from 6 and 1 ratings respectively.
Do NeuroPortion or Symptom Log have ads?
Neither NeuroPortion nor Symptom Log shows ads.
Which is updated more often, NeuroPortion or Symptom Log?
NeuroPortion ships an update every 5 days, and Symptom Log every 2 weeks. Most recently, NeuroPortion was updated on October 24, 2026 and Symptom Log on October 24, 2026.

Other comparisons