Comparison

Lapz vs Lactate Express

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

Head to head
About

Lapz

This app provides an intuitive and straightforward interval timer designed to enhance cardiovascular endurance training. It offers easy setup, reusable timers, and essential features for various sports and activities. An optional Pro version allows for advanced customization and sharing.

Highlights
  • Easy workout setup
  • Reusable saved timers
  • Essential training features
  • Dark mode support
  • Customizable interval workouts (Pro)
  • Shareable workout routines (Pro)
Features
Read full description

Take your training to the next level with Lapz. Interval training is one of the most effective ways to train your cardiovascular endurance. This intuitive and easy-to-use interval timer gets you started within seconds. Instead of distracting you, Lapz fits seamlessly into your workout. It’s simple, fast and straightforward. Following features await you: * Easy Setup: Start your workout right away by adding a new timer to your list. Just configure the sliders to fit your personal training style. * Reusable Timers: Every timer you create will be saved automatically. This way you can reuse timers you’ve already set up. * Only Essential: Lapz provides you with the essentials you need to get the most out of your workout. * Dark Mode: Go hard. Go dark. Experience the charming benefits of Dark Mode during your late night workout sessions. And in case you want to personalize your workouts even further, consider purchasing Lapz Pro. Lapz Pro lets you fully customize your workouts and share it with your friends: * Add Intervals: Create and append single intervals to your workout. * Customize Activities: Quickly adjust title and duration for each interval. * Rearrange Intervals: Change and organize the sequence of your workout. * Share Workouts: Share your beloved workouts with your friends and colleagues. Lapz can be used for any kind of sport that requires periodization such as running, cycling, yoga, cross-fit, MMA, meditation, sprinting, weight-lifting, endurance training, stretching, calisthenics and street workout. 
You may even apply it to equikinetic, horse training, rehabilitation and muay thai. There are no limits! Don't count the laps. Make the laps count. With Lapz! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Data policy: https://sites.google.com/view/lapz-privacy-policy/policy

About

Lactate Express

This app provides precise lactate step-test data capture and analysis for endurance athletes and performance diagnosticians. It computes thresholds using scientifically recognized models and generates clear training zones, eliminating the need for manual spreadsheets. Professional reports can be generated and shared easily.

Highlights
  • Lactate step-test data capture
  • Bluetooth sensor integration
  • Multiple threshold analysis models
  • Automatic training zone calculation
  • Branded PDF report generation
  • Test comparison and trend tracking
  • Athlete roster management
Features
Read full description

Lactate Express brings the lactate step-test to iPad, Mac, and iPhone — built for performance diagnosticians and serious endurance athletes. Capture every step-test precisely, compute thresholds with scientifically recognized models, and turn them into training zones you can actually apply. No more error-prone spreadsheets and manual entry. CAPTURE — fast and error-free • Step-test one step at a time: load (watts or km/h), lactate, heart rate, and Borg per step • Automatic readings over Bluetooth: SensCore lactate meters and Polar heart-rate sensors • Clear phases: rest, examination, recovery — with the current step clearly marked • Large input fields and one-tap entry, even under time pressure during a test ANALYZE — scientifically grounded • Six threshold models: Mader (4.0 mmol/l), Dickhuth, LT1, dMax, dMaxMod, and user-defined fixed values • Automatic curve fitting with coefficients and R² — the math stays transparent • Training zones such as GA1, GA2, and EB at a glance • Publication-grade charts REPORT — professional • Branded PDF reports with header and footer, charts, tables, and zones • Share via the native iOS and macOS share sheet COMPARE & TRACK — over time • Compare Tests: put any two step-tests side by side (Mac and iPad) to see exactly what changed • Home dashboard with threshold trends and deltas — an athlete's form at a glance • Roster overview to manage many athletes from one place (Team/Pro) • Cohort percentiles: see where an athlete ranks within the group WHO IT'S FOR • Diagnosticians: fast capture, athlete management, professional reports • Athletes: clear zones instead of jargon, an honest performance snapshot PLATFORMS Native SwiftUI — optimized for iPad and Mac, compact on iPhone. SUBSCRIPTIONS Lactate Express offers auto-renewable subscriptions with monthly and yearly terms. The subscription title, duration and price are shown in the app before purchase. Payment is charged to your Apple Account at confirmation of purchase. A subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period; your Apple Account is charged for renewal within 24 hours prior to the end of the current period. You can manage or cancel your subscription in your Apple Account settings after purchase. Privacy Policy: https://www.lactate-express.de/lactate-express-policy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Lactate Express — train smarter, not harder.

Screenshots

Lapz4 screens
Lactate Express4 screens

Verdict

The call

The clearest difference is review sentiment: Lapz at 100% against Lactate Express's 38%. Lapz also leads on monetization model (free with in-app purchases vs subscription). 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. Lapz sells 3 in-app purchases, starting at $0.99 per month and Lactate Express sells 4 in-app purchases, starting at $24.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Lapz ships an update every 2 weeks, Lactate Express every 3 weeks. The most recent releases landed on October 4, 2026 and October 12, 2026 respectively.

Scorecard2 real differences · 8 level
Lapz versus Lactate Express: the parameters behind the verdict, then further details
ParameterLapzLactate Express
PriceFreeFree
Rating5.0 (1 ratings) — better—
Positive reviews100.0% of reviews — better37.5% of reviews
Number of ratings1 — better—
Update frequencyEvery 2 weeks — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases — betterSubscription
DevicesiPhone, iPadiPhone, iPad, Mac — better
Requires iOS16.6 — better17.5
Further details — not scored
Size7 MB133 MB
Age rating4+4+
DeveloperMaximilian TraubothCOPAtec GmbH

Customer experience

Lapz

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Lactate Express

Written reviews8 reviews
Positive37.5%
Neutral0.0%
Negative62.5%

In-app purchases

3 purchases

Lapz

Subscriptions2
  • Lapz Pro Monthly14 Days trial$0.991 Month
  • Lapz Pro Yearly14 Days trial$9.991 Year
One-time1
  • Lapz Pro$2.99
4 purchases

Lactate Express

Subscriptions4
  • Teams (Monthly)$24.991 Month
  • Professionals (1 Month)$44.991 Month
  • Teams (Yearly)$250.001 Year
Show 1 more
  • Professionals (Yearly)$399.001 Year

Questions

Is Lapz free?
Lapz is free to download, with in-app purchases available.
Is Lactate Express free?
Lactate Express is free to download, with in-app purchases available.
Do Lapz or Lactate Express have ads?
Neither Lapz nor Lactate Express shows ads.
Which is updated more often, Lapz or Lactate Express?
Lapz ships an update every 2 weeks, and Lactate Express every 3 weeks. Most recently, Lapz was updated on October 4, 2026 and Lactate Express on October 12, 2026.

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