Comparison

LogicSystem vs Lux Light Meter

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

Head to head
About

LogicSystem

Features
Read full description

LogicSystem puts a true AI agent in your hands—not just a chatbot, but a capable digital worker that plans, executes, and delivers, all inside a fully isolated, privacy-first ecosystem. YOUR OWN AGENTIC AI Create a personal AI agent and give it real work. Logic System agents don't stop at answers—they take action: • Browse the live web and research topics in depth • Write, run, and debug code in a real execution environment • Create documents, reports, and files you can actually use • Break big jobs into steps and work through them autonomously • Delegate long-running tasks to background sub-agents and check back when they're done PERSISTENT MEMORY & PROACTIVE WORK Your agent remembers your projects, preferences, and past conversations across sessions—no re-explaining yourself every time. Schedule recurring tasks, set reminders, and let it keep working while you're away. Results are waiting when you get back. DEDICATED, ISOLATED COMPUTE Every agent runs in its own isolated environment. Your queries, code, and files never touch third-party servers, are never used to train models, and are never shared with anyone. No data mining, no external exposure, no exceptions. NO HIDDEN CONTROL We control and manage powerful open-weight models ourselves—including advanced reasoning models that think through hard problems step by step. You're never subject to the data-mining practices of large tech corporations or governments. ALL-IN-ONE CAPABILITY Drafting policy, debugging code, researching markets, generating images, brainstorming your next product—your agent is a researcher, coder, analyst, and advisor in one platform. MINIMAL SETUP Start working in minutes. No servers to configure, no complex deployments—just instant, reliable AI agents. Logic System is engineered for professionals who demand both cutting-edge agentic capability and uncompromising data security. Download now and put your first AI agent to work.

About

Lux Light Meter

Measure ambient light levels with your iPhone. Get real-time lux and foot-candle readings, with specialized modes for photography and plant care. Track light history and calibrate for accuracy.

Highlights
  • Ambient light metering (lux/fc)
  • Photography exposure suggestions
  • Plant light (PPFD/DLI) estimation
  • Continuous measurement and history
  • Optional meter calibration
  • Privacy-friendly local storage
Features
Read full description

Lux Light Meter: Illuminance A practical lux and illuminance meter for iPhone. Measure ambient light in seconds, check if a room is bright enough for study, work, or home use, and get helpful exposure and plant-lighting guidance when you need it. Core metering works offline. Key Features: Ambient light metering - Live lux / fc readings with scene targets that tell you if the light is too dim, about right, or too bright — plus simple tips to adjust Photography mode (Pro) - Aperture- or shutter-priority suggestions with ISO and exposure compensation so you can dial in exposure faster Plant mode (Pro) - Estimate PPFD and DLI for common houseplants, with light source and daily photoperiod options Continuous measure & history - Save single readings, track how light changes over time, and review min, average, and max values Optional calibration - Fine-tune against a trusted meter; Pro saves separate factors for the front and rear cameras Units & privacy-friendly storage - Switch between lux and fc; your measurements stay on your device How to Use: Open the app, allow camera access, and point your iPhone at the area you want to measure. Switch between Environment, Photography, and Plant modes, then save a reading or run a continuous measurement when you need a longer sample. Subscription Options: * Weekly and yearly subscriptions, plus a lifetime purchase * Payment will be charged to your Apple ID account * Subscriptions renew automatically within 24 hours before the current period ends * Manage or cancel anytime in your Account Settings Clearer readings. Better light decisions. Terms of Use: https://lightmeter.xzonesoft.com/terms.html Privacy Policy: https://lightmeter.xzonesoft.com/privacy.html Contact Us: support@xzonesoft.com

Screenshots

LogicSystem4 screens
Lux Light Meter3 screens

Verdict

The call

The clearest difference is in-app purchases: LogicSystem at none against Lux Light Meter's 3. LogicSystem also leads on iOS requirement (15.0 vs 17). On price, update cadence, 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. Lux Light Meter sells 3 in-app purchases, starting at $1.99 per 7 days. LogicSystem asks for nothing beyond the download.

UpkeepUpdate frequency

LogicSystem ships an update every 2 weeks, Lux Light Meter fortnightly. The most recent releases landed on October 11, 2026 and October 8, 2026 respectively.

Scorecard2 real differences · 8 level
LogicSystem versus Lux Light Meter: the parameters behind the verdict, then further details
ParameterLogicSystemLux Light Meter
PriceFreeFree
Rating—5.0 (5 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—5 — better
Update frequencyEvery 2 weeksFortnightly — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17
Further details — not scored
Size57 MB4 MB
Age rating17+4+
DeveloperHST Innovations LLC灿耿 陈

In-app purchases

None

LogicSystem

No in-app purchases

3 purchases

Lux Light Meter

Subscriptions2
  • Weekly Access$1.997 Days
  • Annual Subscription$7.991 Year
One-time1
  • Lifetime Access$4.99

Questions

Is LogicSystem free?
LogicSystem is free to download, with no in-app purchases.
Is Lux Light Meter free?
Lux Light Meter is free to download, with in-app purchases available.
Do LogicSystem or Lux Light Meter have ads?
Neither LogicSystem nor Lux Light Meter shows ads.
Which is updated more often, LogicSystem or Lux Light Meter?
LogicSystem ships an update every 2 weeks, and Lux Light Meter fortnightly. Most recently, LogicSystem was updated on October 11, 2026 and Lux Light Meter on October 8, 2026.

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