Comparison

LBC Underground vs Synthesis Tracker

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

Head to head
About

LBC Underground

This app helps you plan and schedule group fitness classes focused on weightlifting, boxing, and cardio rowing. View class schedules, sign up, and access studio location and social media information.

Highlights
  • View class schedules
  • Sign up for classes
  • Studio location information
  • Access social media
  • Plan and schedule workouts
Features
Read full description

Welcome to L.B.C. Underground! Lift.Box.Cardio is the newest group fitness concept that will get you to your goals! Lift weights to build muscle. Box your way to lean and defined arms with our aqua bags. Accelerate fat loss with Cardio Intervals using our state of the art water rowers. Download our App today to plan and schedule your classes! From this mobile App you can view class schedules, sign-up for classes, as well as view the studio’s location information. You can also click through to our social media pages! Optimize your time and maximize the convenience of signing up for classes from your device! Download this App today!

About

Synthesis Tracker

This app allows parents to easily log their child's ADHD symptoms and daily progress using voice input. It analyzes these logs to identify patterns in mood, focus, and behavior, providing a clear report for healthcare providers.

Highlights
  • Voice logging for quick entries
  • Track doses, mood, sleep, focus, and appetite
  • Automatic pattern detection
  • Build trend reports
  • 7-day timeline review
  • Private by design with on-device transcription
Read full description

Synthesis helps parents log how their child with ADHD or other diagnoses is doing by voice, in seconds, even on the hardest days. Speak for 30 seconds about your child's day. Synthesis transcribes your observation on your phone, structures it into a clear log entry, and after a few days surfaces specific patterns like a mood dip in the 3–5pm window on 4 of the last 7 days. You already know your child better than anyone. Synthesis helps you prove it with a record you can bring to your next appointment. WHAT YOU CAN DO • Log by voice, speak instead of typing • Track doses, mood, sleep, focus and appetite • See patterns you'd never spot alone, surfaced automatically • Build a trend report from your real observations • Review the week at a glance on a 7-day timeline PRIVATE BY DESIGN • Your voice is transcribed on your phone, audio never leaves the device • Only the text of your observation, with your child's name removed, is sent for analysis • Your logs are encrypted on your device and are never used to train AI • You decide what your doctor sees, reports stay private until you share them Synthesis is a general wellness and tracking tool. It is not medical advice and is not a substitute for professional care. Always consult your child's healthcare provider about medication decisions.

Screenshots

LBC Underground3 screens
Synthesis Tracker4 screens

Verdict

The call

The clearest difference is update cadence: Synthesis Tracker at weekly against LBC Underground's every 5 weeks. Synthesis Tracker also leads on ratings volume (12 vs 1) and monetization model (free vs ad-supported). On price, rating, 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for LBC Underground against 5.0 for Synthesis Tracker. That said, the two scores are not equally well evidenced: Synthesis Tracker has 12 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

LBC Underground ships an update every 5 weeks, Synthesis Tracker weekly. The most recent releases landed on October 10, 2026 and October 13, 2026 respectively.

Scorecard3 real differences · 7 level
LBC Underground versus Synthesis Tracker: the parameters behind the verdict, then further details
ParameterLBC UndergroundSynthesis Tracker
PriceFreeFree
Rating5.0 (1 ratings)5.0 (12 ratings)
Positive reviews—100.0% of reviews
Number of ratings112 — better
Update frequencyEvery 5 weeksWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better16.4
Further details — not scored
Size192 MB58 MB
Age rating4+17+
DeveloperL.B.C. Underground Inc.Outliers Inc.

Customer experience

LBC Underground

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Synthesis Tracker

All ratings12 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews12 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

LBC Underground

No in-app purchases

None

Synthesis Tracker

No in-app purchases

Questions

Is LBC Underground free?
LBC Underground is free to download, with no in-app purchases.
Is Synthesis Tracker free?
Synthesis Tracker is free to download, with no in-app purchases.
Which has better reviews, LBC Underground or Synthesis Tracker?
LBC Underground and Synthesis Tracker are both rated 5.0 out of 5 on the App Store, from 1 and 12 ratings respectively.
Do LBC Underground or Synthesis Tracker have ads?
Neither LBC Underground nor Synthesis Tracker shows ads.
Which is updated more often, LBC Underground or Synthesis Tracker?
LBC Underground ships an update every 5 weeks, and Synthesis Tracker weekly. Most recently, LBC Underground was updated on October 10, 2026 and Synthesis Tracker on October 13, 2026.

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