Comparison

LightFi Air vs Workout tracking

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

Head to head
About

LightFi Air

Monitor your indoor air quality by displaying live Carbon Dioxide (CO₂) levels and other sensor data from connected devices. The app helps you understand your environment's impact on health, well-being, and productivity, suggesting actions like increasing ventilation when levels are high.

Highlights
  • Live CO₂ level display
  • Monitors multiple sensors
  • Customizable sensor names
  • Sorts sensors by distance
  • Health and productivity insights
Features
Read full description

This app displays live indoor Carbon Dioxide (CO₂) levels and other sensor data measured by LightFi sensors. Multiple sensors can be monitored simultaneously. You can give each sensor a unique name. When it scans the app sorts each sensor by approximate distance nearest first. It is important to monitor your indoor CO₂ levels for your health, well-being, and productivity. Research from Harvard University shows that continuous exposure to high CO₂ levels can diminish productivity, cause headaches, and increase the risk of viral transmission. When indoor CO₂ levels are high please increase fresh air flow, by opening a window for example.

About

Workout tracking

Features
Read full description

The Anti-Fitness App for Serious Lifters Product Hunt #2 Winner & #5 Health & Fitness App of the Month Tired of workout apps that feel like social media? Just Log strips away everything you don't need for pure, efficient workout tracking. No social feeds. No meal plans. No AI coaches. Just the essential tools to help you get stronger. WHAT LIFTERS ARE SAYING (5/5 Stars) "Amazing UI design and colors. Really clean and easy on the eyes" (5/5 Stars) "Very clever concept with PR tracking. Other apps don't show your best specific set. Motivates me to beat it every time" (5/5 Stars) "Love that weekly calendar part. So easy to see my past and next routines. Very efficient" (5/5 Stars) "So easy to add custom exercises. Exactly what I needed" EFFICIENT LOGGING, POWERFUL TRACKING Smart Exercise Library Our library of 1000+ exercises features intelligent search. Type "benchpress", "bench press", or "bench-press" - we'll find it instantly. Visual Progress Tracking A color-coded calendar shows your routine at a glance, trophy indicators celebrate new PRs, and clean graphs visualize your strength gains over time. Flexible Logging Options Log weight-based sets (reps x weight), time-based exercises (planks), distance (running), or use custom daily counters for habits like pushups. Powerful Workout Management Create unlimited routines, copy previous workouts with one tap, and resume interrupted sessions seamlessly. Log your sets in seconds, not minutes. FOCUS ON WHAT MATTERS We intentionally exclude features that distract from your workout: NO Social Feeds NO Meal Planning or Calorie Tracking NO Video Tutorials NO Achievement Badges NO Push Notifications PERFECT FOR YOUR TRAINING STYLE Powerlifting & Strength Training 5x5, 5/3/1, and Progressive Overload Programs Push/Pull/Legs (PPL) & Upper/Lower Splits Home Workouts & Calisthenics Anyone tired of overcomplicated fitness apps HONEST & ALL-INCLUSIVE One single plan. Every feature included for all users. No hidden fees, no confusing "Pro" tiers, and no ads. You get the entire app, always. PRIVACY-FIRST DESIGN Your data is yours. We only collect your email and workout data to make the app function. No tracking pixels, no data selling, no spam. Download Just Log and experience what workout tracking should be: simple, fast, and focused on your progress. Just log. Nothing else. Terms of Use: https://justlog.app/terms Privacy Policy: https://justlog.app/privacy

Screenshots

LightFi Air4 screens
Workout tracking4 screens

Verdict

The call

The clearest difference is in-app purchases: LightFi Air at none against Workout tracking's 2. LightFi Air also leads on iOS requirement (12.4 vs 17.6). Workout tracking's advantage is update cadence (every 3 weeks vs every 3 months). 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. Workout tracking sells 2 in-app purchases, starting at $1.99 per month. LightFi Air asks for nothing beyond the download.

UpkeepUpdate frequency

LightFi Air ships an update every 3 months, Workout tracking every 3 weeks. The most recent releases landed on September 29, 2026 and October 24, 2026 respectively.

Scorecard3 real differences · 7 level
LightFi Air versus Workout tracking: the parameters behind the verdict, then further details
ParameterLightFi AirWorkout tracking
PriceFreeFree
Rating—4.7 (3 ratings) — better
Positive reviews100.0% of reviews—
Number of ratings—3 — better
Update frequencyEvery 3 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPod — betteriPhone
Requires iOS12.4 — better17.6
Further details — not scored
Size17 MB26 MB
Age rating4+4+
DeveloperLightFi LimitedAlifba

In-app purchases

None

LightFi Air

No in-app purchases

2 purchases

Workout tracking

Subscriptions2
  • Monthly Premium$1.991 Month
  • Annual Premium3 Days trial$19.991 Year

Questions

Is LightFi Air free?
LightFi Air is free to download, with no in-app purchases.
Is Workout tracking free?
Workout tracking is free to download, with in-app purchases available.
Do LightFi Air or Workout tracking have ads?
Neither LightFi Air nor Workout tracking shows ads.
Which is updated more often, LightFi Air or Workout tracking?
LightFi Air ships an update every 3 months, and Workout tracking every 3 weeks. Most recently, LightFi Air was updated on September 29, 2026 and Workout tracking on October 24, 2026.

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