Comparison

Flex Log vs Health Webhook

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

Head to head
About

Flex Log

Features
Read full description

Welcome to Flex Log, the app for anyone who's ever thought, "If only I could track my productivity hacks... with another productivity hack." It's like your standard health and productivity app, but without the rigid frameworks and one-size-fits-all approach. It's adaptable to fit the way you track. Why Flex Log? Because who doesn't love tracking their life with an app? Flex Log brings a bit of order to your chaotic world, with the added bonus of making you feel like a productivity guru. It's the app for people who love data, but also value simplicity and ease of use in their everyday life. For the Aspiring Life Optimizers: You're the kind of person who tries to squeeze productivity out of every second (while listening to podcasts you swear you'll apply to your life someday). Flex Log is here to help you track, well, whatever you think is worth tracking. No judgments here! Customize Without the Complexity: Our app is more adaptable than your yoga instructor. Want to track your caffeine intake or the number of times you actually remember to water your plants? Flex Log has got your back. Built with the power-user in mind, so you can dive deep into customization, creating a setup that's as complex and unique as your goals. Join Our Band of Happy Trackers: Download Flex Log and become part of a community that loves to optimize their lives, but also knows how to laugh at the little absurdities. Remember, life's a journey – might as well have an app that makes the ride more interesting. Flex Log: Your Life, Tracked Your Way (With a Smile). Features: - Quick data entry - Task tracking - User defined activities with custom icons - Point in time as well as time range tracking - Custom fields so you can track anything in a structured format - Data never leaves your phone - Customized views Coming soon: - Recurring tasks based on calendar or last completion date - Reminder notifications - Voice entry with siri and google assistant - Data sync to notion or google sheets - Goals and charts. Visualize what's most important.

About

Health Webhook

This app automatically sends your Health data to any URL you configure in real time. It supports a wide range of health metrics and integrates with automation tools like Zapier and Home Assistant. All data remains on your device and is sent directly to your specified endpoints.

Highlights
  • Real-time data syncing
  • Supports numerous health metrics
  • Integrates with automation tools
  • Multiple webhook support
  • Shortcuts app integration
  • Sync log for tracking
Features
Read full description

Health Webhook sends your Health data to any URL you configure. Automatically, in real time. Perfect for personal automation with tools like n8n, Make, Zapier, Home Assistant, or any custom backend. If it accepts a POST request, Health Webhook can feed it your health data. WHAT IT SYNCS • Steps & distance • Sleep (including Core, Deep, REM stages) • Heart rate & HRV • Active calories & BMR • Blood pressure & blood glucose • Oxygen saturation (SpO₂) • Weight, BMI, body fat • Workouts & exercise sessions • Respiratory rate, resting heart rate • Nutrition (calories, protein, carbs, fat) • Floors climbed, water intake, and more HOW IT WORKS Add one or more webhook URLs. The app fires a JSON POST to each URL whenever new health data arrives. No polling needed. You can also trigger a manual sync or build Shortcuts automations for scheduled syncing. MULTIPLE WEBHOOKS Add as many endpoints as you need. Each sync posts to all configured webhooks simultaneously with exponential backoff retry on failure. SHORTCUTS SUPPORT The "Sync Health Data" action is available in the Shortcuts app, so you can schedule syncs via time-based automations without leaving the app open. SYNC LOG Every sync is logged with a timestamp, status, and data summary so you can see exactly what was sent and when. PRIVACY All data stays on your device and goes directly to the webhook URLs you configure. Nothing is sent to any third-party server. The developer never sees your health data. Requires HealthKit permission. Background delivery works best when the app has been opened at least once after device restart.

Screenshots

Flex Log4 screens
Health Webhook4 screens

Verdict

The call

The clearest difference is price: Flex Log at Free against Health Webhook's $14.99. Flex Log also leads on update cadence (every 5 days vs fortnightly) and iOS requirement (12.4 vs 26.0). Health Webhook's advantage is chart position (#194 vs unranked). 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

Flex Log is free to download; Health Webhook costs $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Flex Log ships an update every 5 days, Health Webhook fortnightly. The most recent releases landed on September 15, 2026 and September 3, 2026 respectively.

Scorecard4 real differences · 5 level
Flex Log versus Health Webhook: the parameters behind the verdict, then further details
ParameterFlex LogHealth Webhook
PriceFree — better$14.99
Positive reviews—0.0% of reviews
Update frequencyEvery 5 days — betterFortnightly
AdsNoNo
In-app purchasesNoNo
Monetization—Paid
Best chart rank—#194 — better
DevicesiPhone, iPodiPhone, iPad
Requires iOS12.4 — better26.0
Further details — not scored
Size18 MB1 MB
Age rating17+4+
DeveloperAaron LarnerNaveen Mathivanan

In-app purchases

None

Flex Log

No in-app purchases

None

Health Webhook

No in-app purchases

Questions

Is Flex Log free?
Flex Log is free to download, with no in-app purchases.
Is Health Webhook free?
Health Webhook costs $14.99, with no in-app purchases.
Do Flex Log or Health Webhook have ads?
Neither Flex Log nor Health Webhook shows ads.
Which is updated more often, Flex Log or Health Webhook?
Flex Log ships an update every 5 days, and Health Webhook fortnightly. Most recently, Flex Log was updated on September 15, 2026 and Health Webhook on September 3, 2026.

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