Comparison

iBac PRO 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

iBac PRO

Features
Read full description

Extremely small - Extremely accurate Professional alcometer in pocket size. iBAC is an accurate alcometer designed to fit on your key chain. It connects to your smartphone via the iBAC app. iBAC has been tested by MHF International road safety test lab to be as accurate as the professional devices – but the size is only one tenth to one fifth of the competitors. iBAC Pro app provides additional features like: - Communication to the backend. - User login feature with multiple users support. - Random and scheduled testing.

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

iBac PRO3 screens
Symptom Log4 screens

Verdict

The call

The clearest difference is in-app purchases: iBac PRO at none against Symptom Log's 3. iBac PRO also leads on iOS requirement (12.0 vs 15.0). Symptom Log's advantage is update cadence (every 2 weeks vs every 6 weeks). On price, ads 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. Symptom Log sells 3 in-app purchases, starting at $2.99 per 7 days. iBac PRO asks for nothing beyond the download.

UpkeepUpdate frequency

iBac PRO ships an update every 6 weeks, Symptom Log every 2 weeks. The most recent releases landed on October 4, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 6 level
iBac PRO versus Symptom Log: the parameters behind the verdict, then further details
ParameteriBac PROSymptom Log
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 6 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS12.0 — better15.0
Further details — not scored
Size16 MB43 MB
Age rating17+17+
DeveloperAlcosystems Sweden ABAlgoSoft Technologies Limited

In-app purchases

None

iBac PRO

No in-app purchases

3 purchases

Symptom Log

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

Questions

Is iBac PRO free?
iBac PRO is free to download, with no in-app purchases.
Is Symptom Log free?
Symptom Log is free to download, with in-app purchases available.
Do iBac PRO or Symptom Log have ads?
Neither iBac PRO nor Symptom Log shows ads.
Which is updated more often, iBac PRO or Symptom Log?
iBac PRO ships an update every 6 weeks, and Symptom Log every 2 weeks. Most recently, iBac PRO was updated on October 4, 2026 and Symptom Log on October 24, 2026.

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