Comparison

Cindla vs AcidLog

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

Head to head
About

Cindla

Features
Read full description

Log a reflux flare from your wrist in two taps. Cindla is the first proper Apple Watch implementation in the GERD category — symptom-first, no food photo scanning, no AI ingredient analysis. WATCH-FIRST LOGGING - Tap the Cindla complication → tap Confirm. Two taps from raise to logged. - Or pick a quick-note from your eight most-frequent foods and drinks. - Severity slider on the Digital Crown. - Three complication families: circular, corner, inline. HONEST PATTERNS, NOT GUESSES - Frequency timeline (12 weeks). - Time-of-day heatmap. - Day-of-week distribution. - Trigger-strength bar chart — refuses to rank until you have at least 10 flares for that trigger. No misleading low-N rankings. - Severity distribution histogram. YOUR DATA, ALWAYS YOURS - CSV, PDF, and JSON export from day one — free, always. - HealthKit read-only for sleep, HRV, workouts. Optional cycle-data correlation if you already track in Apple Health. - Optional Acid Reflux entry written to Apple Health if you turn that on. - Everything stays on your device, syncs to your iCloud only. No backend, no servers, no analytics. ONE-TIME PRICING - 3-day full-access trial. - £6.99 unlocks Cindla forever. No subscription, no monthly charge. WHAT CINDLA IS NOT Cindla is a personal wellness tool, not a clinical product. It does not diagnose, predict or warn about reflux. It is not a substitute for medical advice — speak to your GP or specialist about anything that worries you. Privacy: https://maddisys.co.uk/privacy Terms: https://maddisys.co.uk/terms Support: https://maddisys.co.uk/support

About

AcidLog

This app helps you identify personal acid reflux triggers by logging meals and symptoms. It uses an on-device engine to correlate foods with your reported discomfort, providing a ranked list of likely culprits. Focus on what bothers you, not generic avoidance lists.

Highlights
  • Log meals and rate symptoms
  • On-device correlation engine
  • Personalized trigger list
  • Offline logging capability
  • Doctor-ready PDF reports
  • No advertisements
Features
Read full description

Most acid reflux advice hands you a list of 40 foods to avoid. AcidLog does the opposite: it finds the 3 or 4 that actually bother YOU — so you can stop fearing the rest. Log a meal and how you felt in about 30 seconds. AcidLog's correlation engine compares each food with your other meals and names it as a likely trigger only when your symptoms keep following it — often within about two weeks for foods you eat regularly. Your personal trigger list is ranked by confidence. WHY A GENERIC "AVOID THESE FOODS" LIST FAILS Coffee wrecks one person and does nothing to the next. Reflux is personal. Instead of eliminating everything, AcidLog watches your own meals and symptoms and surfaces the patterns that are actually yours. HOW IT WORKS 1. Log — add a meal and rate symptoms (heartburn, regurgitation, throat, cough, bloating) in seconds. 2. Correlate — the on-device engine links foods to the symptoms that followed. 3. Discover — once a food keeps coming before your symptoms, it joins your ranked list of likely triggers, with a confidence score for each. Trigger foods you eat often usually show up within about two weeks; occasional ones take longer. WHAT'S FREE The full 14-day trigger discovery is free: log meals and symptoms and see your first correlations and trigger list. No trial paywall in front of the core. ACIDLOG PRO (monthly or annual subscription) - Your whole diary analysed, not just the last 14 days - Your full history stays viewable - Doctor-ready PDF report to bring to your gastroenterologist - Trends across weeks and months BUILT FOR REAL LIFE - Offline logging — entries save straight to your phone; with a free account they are backed up and sync when you're back online - No ads. Ever. - Fast enough to log at the table, not an hour later - Works for GERD, silent reflux / LPR, and post-meal indigestion MADE FOR - Adults with GERD or silent reflux (LPR), including long-term PPI users who want their own triggers, not another handout - Anyone newly diagnosed and told to "keep a food diary" - Caregivers who cook and want to know which meals set off symptoms AN HONEST NOTE AcidLog is a diary and correlation tool, not a medical device. It does not diagnose, treat, or cure any condition, and it isn't a substitute for your doctor. Its job is to hand you and your clinician better data. Find your triggers, keep your food. Start free.

Screenshots

Cindla2 screens
AcidLog4 screens

Verdict

The call

The clearest difference is iOS requirement: AcidLog at 15.1 against Cindla's 17.0. On price, update cadence, 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. Cindla sells 1 one-off in-app purchase and AcidLog sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 8 level
Cindla versus AcidLog: the parameters behind the verdict, then further details
ParameterCindlaAcidLog
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, Apple WatchiPhone, iPad, iPod — better
Requires iOS17.015.1 — better
Further details — not scored
Size8 MB45 MB
Age rating4+4+
DeveloperMaddisys LimitedDJUMP, MB

In-app purchases

1 purchases

Cindla

One-time1
  • Cindla — unlock forever$6.99
2 purchases

AcidLog

Subscriptions2
  • Premium Monthly$4.991 Month
  • Premium Annual7 Days trial$39.991 Year

Questions

Is Cindla free?
Cindla is free to download, with in-app purchases available.
Is AcidLog free?
AcidLog is free to download, with in-app purchases available.
Do Cindla or AcidLog have ads?
Neither Cindla nor AcidLog shows ads.
Which is updated more often, Cindla or AcidLog?
Cindla ships an update every 3 weeks, and AcidLog every 3 weeks. Most recently, Cindla was updated on November 7, 2026 and AcidLog on October 31, 2026.

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