Comparison

Flex Log vs Copper

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

Copper

Effortlessly log your gym sessions by speaking naturally. This app recognizes over 1,000 exercises, automatically tracking reps, weight, and heart rate. It integrates with Apple Watch and Apple Health for seamless data capture and offers easy import/export options.

Highlights
  • Voice-first workout logging
  • Smart exercise recognition
  • Apple Watch integration
  • Heart rate tracking
  • Workout history and insights
  • CSV import/export
  • Works offline
Features
Read full description

The fastest way to log workouts. Just talk. Speak naturally and Copper logs your reps, weight, and heart rate. Works exclusively on iPhone and Apple Watch. Import your workout data from Strong, Hevy, or any app via CSV. Export any time with no lock-in. Other apps make you tap through menus to log workouts. With Copper you can leave a voice memo and get back to lifting. • "Bench press, 185 pounds, 8 reps, RPE 8" • "20 jumping jacks, 20 butt kicks, 20 air squats" • "Treadmill for 30 minutes, 3mph, 12 incline" VOICE-FIRST WORKOUT LOGGING • Speak naturally — Copper handles the rest • Log multiple exercises in one recording • Works offline, syncs when reconnected SMART EXERCISE RECOGNITION • 1,000+ exercises across strength, cardio, and mobility • Auto-detects weight, reps, sets, duration, distance, and incline • Tracks PRs and RPE without extra steps APPLE WATCH INTEGRATION • Record from your wrist between sets • Phone stays in your bag • Captures heart rate for every set, syncs to iPhone • Auto-resumes recording on poor or no Wi-Fi WORKOUT HISTORY & INSIGHTS • All workouts organized by date • Track progress per exercise over time • Import/export CSV anytime — your data stays yours • Syncs with Apple Health WHY COPPER? Download now and let Copper do the logging. Free lifetime access for all signups until 6/31/2026, then 14-day free trial with $12.99 USD/month or $39.99/year. For Terms of Use (EULA), please visit: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ For Privacy Policy, please visit: https://www.copperscorner.com/privacypolicy/

Screenshots

Flex Log4 screens
Copper4 screens

Verdict

The call

The clearest difference is in-app purchases: Flex Log at none against Copper's 2. Flex Log also leads on update cadence (every 5 days vs every 11 days) and iOS requirement (12.4 vs 18.0). 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. Copper sells 2 in-app purchases, starting at $12.99 per month. Flex Log asks for nothing beyond the download.

UpkeepUpdate frequency

Flex Log ships an update every 5 days, Copper every 11 days. The most recent releases landed on November 8, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 6 level
Flex Log versus Copper: the parameters behind the verdict, then further details
ParameterFlex LogCopper
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 5 days — betterEvery 11 days
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPodiPhone, Apple Watch
Requires iOS12.4 — better18.0
Further details — not scored
Size18 MB335 MB
Age rating17+4+
DeveloperAaron LarnerTerry Ye-Hua Lin

In-app purchases

None

Flex Log

No in-app purchases

2 purchases

Copper

Subscriptions2
  • Premium Monthly14 Days trial$12.991 Month
  • Premium Annual14 Days trial$39.991 Year

Questions

Is Flex Log free?
Flex Log is free to download, with no in-app purchases.
Is Copper free?
Copper is free to download, with in-app purchases available.
Do Flex Log or Copper have ads?
Neither Flex Log nor Copper shows ads.
Which is updated more often, Flex Log or Copper?
Flex Log ships an update every 5 days, and Copper every 11 days. Most recently, Flex Log was updated on November 8, 2026 and Copper on October 30, 2026.

Other comparisons