Flex Log vs Sundry
Price, ratings, monetisation and update history for both apps, side by side ā with what reviewers say about each.
Flex Log
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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 ā 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.
Sundry
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Sundry is the calm, private home for every number you keep. Weight, blood pressure, blood sugar, sleep, water, mood, heart rate, steps ā or anything you can put a number on. Write it down in seconds and see the chart, the trend, and the stats right away. It has the speed of a notes app and the tidiness of a spreadsheet, without any of the setup. Made for anyone who already keeps a little list of numbers somewhere ā on paper, in Notes, in a weight.xlsx ā and just wants one calm place built for the job. WHY SUNDRY ⢠One home for all your numbers, instead of ten single-purpose apps. ⢠Fast to jot down ā quick-add from the home screen, with your last value pre-filled. ⢠Clear at a glance ā every tracker gets a chart, a trend, and stats, with nothing to configure. ⢠Private by design ā your data stays on your device. No account, and nothing is uploaded to us. ⢠Yours to keep ā a clean, tidy log of your own. WHAT YOU CAN DO ⢠Start in one tap with ready-made trackers: weight, BMI, body measurements, blood pressure, heart rate, blood sugar, sleep, water, mood, temperature, medication, and more. ⢠Or build your own ā name it, pick an icon and color, and add exactly the fields you want. ⢠Track a few things at once in one entry ā log systolic, diastolic and pulse together in a single blood-pressure reading. ⢠Fields for real life: numbers with your own precision, durations, yes/no, 1ā5 ratings, and notes. ⢠Times fill in automatically, and you can always change them ā log this morning's reading at lunch, or fill in older days. It never forces "now." ⢠Smart defaults bring back your last value, so a small change is a single tap. ⢠A full history for every tracker, grouped by day, week and month; swipe to edit or delete, with undo. ⢠Clean charts ā line and bar, with week / month / 3-month / year / all ranges, a moving-average trend line, and more than one field on the same chart. ⢠Stats worked out for you: average, min, max, latest, change since last time, totals, and streaks. ⢠Insights that put two trackers on one chart, so you can see how they move together. ⢠Reminders that nudge you to log ā set a daily, weekday or custom schedule for any tracker. ⢠Keep it tidy with categories, pin your favorites to the top, and search across names, notes and tags. ⢠Archive trackers you've finished with, without losing their data. ⢠Export any tracker ā or your whole log ā as a CSV table or a JSON backup, and share it wherever you like (Save to Files, email, a messenger) from the share sheet. ⢠Password-protect a backup if you want: it's encrypted on your device, and only your passphrase can open it. ⢠Restore from a backup with a preview first, then choose Merge (adds without making duplicates) or Replace. ⢠Lock the app with a PIN, and unlock with Face ID or Touch ID. ⢠Full dark mode and light mode, both designed as first-class themes. PRIVATE BY DESIGN Sundry is built to collect nothing. There is no sign-up and no account. Your entries stay on your device ā we never see them. On the App Store privacy label, that is "Data Not Collected." Your data is never sold, never used for ads, and never shared. FREE ā REALLY FREE Sundry is completely free. No subscriptions, no ads, no in-app purchases, nothing locked behind a paywall. The whole app is yours to use. CALM BY DESIGN Minimal, modern, and quiet. Your latest number is the hero on every screen; charts are thin and clutter-free; color is used as data, not decoration. Quick to open, easy for everyday logging. LANGUAGES & UNITS Sundry speaks several languages, and works in metric or imperial units, converted on the fly. A NOTE ON HEALTH Sundry is a personal tracking tool to help you record and understand your own numbers. It is not a medical device and does not provide medical advice, diagnosis, or treatment. Any trends or statistics are for your information only ā always talk to a qualified professional about health decisions.
Screenshots
Verdict
Flex Log and Sundry are too close to call on the numbers: across 5 compared parameters ā price, ads, in-app purchases and device support among them ā neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price Ā· Rating Ā· Positive reviews Ā· Number of ratings Ā· Update frequency Ā· Ads Ā· In-app purchases Ā· Monetization Ā· Best chart rank Ā· Devices Ā· Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Flex Log | Sundry |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 5 days | ā |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12.4 ā better | 13.0 |
| Further details ā not scored | ||
| Size | 18 MB | 27 MB |
| Age rating | 17+ | 4+ |
| Developer | Aaron Larner | Roman Volkov |
In-app purchases
Flex Log
No in-app purchases
Sundry
No in-app purchases









