Comparison

Humidity Checker vs PPFD METER

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

Head to head
About

Humidity Checker

This app helps you monitor and maintain optimal indoor humidity levels for better health and comfort. It calculates the amount of water needed to reach the ideal 40-60% RH range, using scientific formulas and providing simple visual indicators.

Highlights
  • Check healthy humidity levels
  • Calculate water needed to increase humidity
  • Visual traffic light indicators
  • Supports scientific expert formulas
  • Monitors temperature and humidity
Features
Read full description

The Condair’s Humidity Checker App enables anyone to: 1) check the HEALTHY AND PROTECTIVE HUMIDITY levels required for good indoor air quality, 2) calculate HOW MUCH WATER NEEDS TO BE ADDED into the air to reach the healthy range i.e. between 40-60%RH. Enter your current indoor temperature and relative humidity. Simple traffic light colors will indicate how your indoor climate is doing and whether corrective actions are needed. FIX IT! Enter your indoor space parameters to calculate the amount of water needed to increase the humidity to healthy levels. The App reflects the latest scientific evidence and industry’s expert calculation formulas, easily applied to your specific conditions. Indoor humidity is typically lowest during the cold winter months, when the heating is on. It gets usually critically low at higher altitudes. Be it in your own home, at your workplace, in your school’s rooms, in the hotel you manage, etc. the 40-60% relative humidity is optimal for: - occupants’ respiratory immune system’s defenses function (to capture, remove and fight pathogens) - effective reduction of airborne infection (induces aerosols’ size transformation and virus inactivation) - the overall health, wellness and mental performance of the occupants - the preservation of wood flooring, furniture, valuable art, instruments and wine collections Monitor and record the indoor temperature and humidity levels regularly, using a hygrometer. It will typically provide a %RH value, which means % relative humidity.

About

PPFD METER

This app measures light intensity for plants, converting LUX to PPFD and DLI. It offers advanced light mapping, uniformity analysis, and efficiency insights to optimize plant growth. Customize profiles for different environments and growth stages.

Highlights
  • LUX, PPFD, DLI, and PAR measurements
  • Light mapping and distribution analysis
  • Uniformity and PPF evaluation
  • Energy efficiency and consumption tracking
  • Customizable setting profiles
  • Bluetooth sensor integration
Read full description

Perfect for both seasoned gardeners and beginners, PPFD Meter sets itself apart from standard grow light meter apps with its comprehensive features and intuitive design. Using your phone's built-in sensors or the acclaimed UNI-T UT383 BT sensor via Bluetooth, PPFD Meter provides precise and reliable light measurements. This accuracy is essential for understanding and optimizing the light your plants receive, ensuring their health and growth. PPFD Meter is more than a light measurement tool; it's a guide to understanding your plants' needs. It converts LUX readings into PPFD (Photosynthetic Photon Flux Density) and DLI (Daily Light Integral), providing critical insights for your lighting setup. Customize up to five different settings profiles for various environments or growth stages, making your plant care as unique as your garden. Advanced Light Mapping and Analysis Step into a new era of light management with PPFD Meter's advanced light mapping capabilities. Our exclusive PAR and DLI Maps feature offers a vivid, detailed representation of light distribution across your grow area, enabling precise adjustments for optimal plant growth. But that's just the beginning: In-Depth Light Analysis: Measure light uniformity to ensure even plant growth, and evaluate your setup's PPF (Photosynthetic Photon Flux) to understand the total light output. Efficiency and Consumption Insights: Assess the efficiency of your lighting system in converting energy into usable light. Track the daily total energy consumption to manage your energy usage and environmental impact effectively. Comprehensive DLI Tracking: Monitor the Daily Light Integral, a key factor in regulating plant health and growth cycles, ensuring your plants receive the right amount of light each day. These advanced features make PPFD Meter not just an app, but a vital partner in your indoor gardening journey. It’s a leap forward from typical grow light meter apps, offering a depth of analysis and customization that truly enhances your plant care experience. Download PPFD Meter today and embark on a journey of precision and expertise in plant care. Your plants will thrive like never before! Privacy Policy: https://www.ppfd.app/pp Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Humidity Checker1 screens
PPFD METER4 screens

Verdict

The call

The clearest difference is review sentiment: PPFD METER at 53% against Humidity Checker's 0%. PPFD METER also leads on rating (4.6 vs 1.3) and update cadence (every 3 weeks vs every 8 months). Humidity Checker's advantage is in-app purchases (none vs 3) and ads (none vs shown). On price 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. PPFD METER sells 3 in-app purchases, starting at $1.99 per month. Humidity Checker asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

PPFD METER holds the better App Store score, 4.6 against 1.3. That said, the two scores are not equally well evidenced: PPFD METER has 132 ratings behind it against 16, so its average is the more settled of the two. Written reviews point the same way: 0% of Humidity Checker's written reviews are positive against 53% of PPFD METER's.

UpkeepUpdate frequency

Humidity Checker ships an update every 8 months, PPFD METER every 3 weeks. The most recent releases landed on November 3, 2026 and November 12, 2026 respectively.

Scorecard8 real differences · 2 level
Humidity Checker versus PPFD METER: the parameters behind the verdict, then further details
ParameterHumidity CheckerPPFD METER
PriceFreeFree
Rating1.3 (16 ratings)4.6 (132 ratings) — better
Positive reviews0.0% of reviews52.6% of reviews — better
Number of ratings16132 — better
Update frequencyEvery 8 monthsEvery 3 weeks — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPodiPhone, iPad
Requires iOS12.0 — better18.0
Further details — not scored
Size10 MB46 MB
Age rating12+4+
DeveloperCondair A/SCandas Pamukcu

Customer experience

Humidity Checker

All ratings15 ratings
Positive0.0%
Neutral6.7%
Negative93.3%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

PPFD METER

All ratings129 ratings
Positive89.9%
Neutral3.9%
Negative6.2%
Written reviews19 reviews
Positive52.6%
Neutral10.5%
Negative36.8%

In-app purchases

None

Humidity Checker

No in-app purchases

3 purchases

PPFD METER

Subscriptions2
  • Premium$1.991 Month
  • Premium Plus$2.991 Month
One-time1
  • Remove Ads$29.99

Questions

Is Humidity Checker free?
Humidity Checker is free to download, with no in-app purchases.
Is PPFD METER free?
PPFD METER is free to download, with in-app purchases available.
Which has better reviews, Humidity Checker or PPFD METER?
PPFD METER is rated higher. Humidity Checker averages 1.3 out of 5 from 16 ratings, while PPFD METER averages 4.6 from 132 ratings.
Do Humidity Checker or PPFD METER have ads?
PPFD METER shows ads; Humidity Checker does not.
Which is updated more often, Humidity Checker or PPFD METER?
Humidity Checker ships an update every 8 months, and PPFD METER every 3 weeks. Most recently, Humidity Checker was updated on November 3, 2026 and PPFD METER on November 12, 2026.

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