Comparison

Obseed vs LaChart

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

Head to head
About

Obseed

Features
Read full description

Obseed is the app for ambitious athletes and fitness enthusiasts who want to reach their training goals with precision.  Our platform makes it easy to plan, track, and analyze your workouts in depth. Inspired by the market’s leading tools, Obseed offers advanced—and most importantly, corrected—training data, personalized analysis options, and a user-friendly interface. Unlock your full potential and stay motivated with reliable data and tailored insights that take your training to the next level. Features: - Comprehensive workout tracking - Progress analysis - Intuitive user interface - Real-time data & insights Obseed – for those who want to get more out of their training!

About

LaChart

Features
Read full description

LaChart is a professional lactate testing and athlete performance tracking app designed for coaches and endurance athletes. LACTATE TESTING • Conduct step tests and record blood lactate values in real time • Connect Bluetooth heart rate monitors for live HR tracking • Automatic lactate curve calculation with LT1 and LT2 threshold detection • Manual threshold override for custom coaching adjustments TRAINING ZONES • Automatic zone calculation based on lactate thresholds • Support for cycling (power/watts), running (pace) and swimming • Metric and imperial unit support ATHLETE MANAGEMENT • Manage multiple athletes from a single coach account • Track progress across multiple tests over time • Compare test results and monitor fitness development REPORTS & SHARING • Generate professional PDF reports for each test • Send reports directly to athletes via email • Visual lactate curve charts included in every report DESIGNED FOR PROFESSIONALS LaChart is built for sports scientists, coaches and serious athletes who need accurate, data-driven insights to optimize training load and performance.

Screenshots

Obseed4 screens
LaChart4 screens

Verdict

The call

The clearest difference is update cadence: LaChart at every 9 days against Obseed's every 6 weeks. LaChart also leads on iOS requirement (15.0 vs 18.0). On price, 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

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Obseed ships an update every 6 weeks, LaChart every 9 days. The most recent releases landed on October 6, 2026 and October 11, 2026 respectively.

Scorecard2 real differences · 4 level
Obseed versus LaChart: the parameters behind the verdict, then further details
ParameterObseedLaChart
PriceFreeFree
Update frequencyEvery 6 weeksEvery 9 days — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015.0 — better
Further details — not scored
Size6 MB226 MB
Age rating4+4+
DeveloperDaniel MetzingJakub Stadnik

In-app purchases

None

Obseed

No in-app purchases

None

LaChart

No in-app purchases

Questions

Is Obseed free?
Obseed is free to download, with no in-app purchases.
Is LaChart free?
LaChart is free to download, with no in-app purchases.
Do Obseed or LaChart have ads?
Neither Obseed nor LaChart shows ads.
Which is updated more often, Obseed or LaChart?
Obseed ships an update every 6 weeks, and LaChart every 9 days. Most recently, Obseed was updated on October 6, 2026 and LaChart on October 11, 2026.

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