Comparison

PPFD METER vs IR Sync

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

Head to head
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/

About

IR Sync

This app connects to precision temperature monitors via Bluetooth to display real-time readings and control device settings. Save custom presets, set smart alerts, and review session history. It also features a QR scanner for loading manufacturer profiles.

Highlights
  • Real-time temperature monitoring
  • Customizable presets
  • Smart alerts and notifications
  • Session history logging
  • QR scanner for profiles
  • Device settings synchronization
Features
Read full description

The official companion app for precision temperature monitors. Connect via Bluetooth for real-time temperature readings and complete device control. REAL-TIME TEMPERATURE MONITORING View live surface temperature readings with instant updates. Know precisely when your target temperature has been reached. CUSTOM PRESETS Save preferred temperature and cooldown settings. Sync presets directly to your device for one-tap access. SMART ALERTS Set target and cooldown alerts with customisable notification sounds. Receive phone notifications when temperatures are reached. SESSION HISTORY Log and review sessions over time. Analyse temperature trends and fine-tune your preferred settings. QR SCANNER Scan product QR codes to instantly load manufacturer-recommended temperature profiles and product information. DEVICE SETTINGS Customise LED colours, sounds, display brightness and auto-off timers. All settings sync wirelessly to your device. App requires a hardware device (sold separately) and Bluetooth connection.

Screenshots

PPFD METER4 screens
IR Sync3 screens

Verdict

The call

The clearest difference is in-app purchases: IR Sync at none against PPFD METER's 3. IR Sync also leads on ads (none vs shown) and rating (5.0 vs 4.6). PPFD METER's advantage is ratings volume (125 vs 1). On price, update cadence 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. IR Sync asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

IR Sync holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: PPFD METER has 125 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

PPFD METER ships an update every 3 weeks, IR Sync fortnightly. The most recent releases landed on October 10, 2026 and October 1, 2026 respectively.

Scorecard6 real differences · 4 level
PPFD METER versus IR Sync: the parameters behind the verdict, then further details
ParameterPPFD METERIR Sync
PriceFreeFree
Rating4.6 (125 ratings)5.0 (1 ratings) — better
Positive reviews52.6% of reviews—
Number of ratings125 — better1
Update frequencyEvery 3 weeksFortnightly — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPod
Requires iOS18.015.1 — better
Further details — not scored
Size46 MB54 MB
Age rating4+17+
DeveloperCandas PamukcuSoCal Dab Tools, LLC

Customer experience

PPFD METER

All ratings125 ratings
Positive89.6%
Neutral4.0%
Negative6.4%
Written reviews19 reviews
Positive52.6%
Neutral10.5%
Negative36.8%

IR Sync

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

In-app purchases

3 purchases

PPFD METER

Subscriptions2
  • Premium$1.991 Month
  • Premium Plus$2.991 Month
One-time1
  • Remove Ads$29.99
None

IR Sync

No in-app purchases

Questions

Is PPFD METER free?
PPFD METER is free to download, with in-app purchases available.
Is IR Sync free?
IR Sync is free to download, with no in-app purchases.
Which has better reviews, PPFD METER or IR Sync?
IR Sync is rated higher. PPFD METER averages 4.6 out of 5 from 125 ratings, while IR Sync averages 5.0 from 1 ratings.
Do PPFD METER or IR Sync have ads?
PPFD METER shows ads; IR Sync does not.
Which is updated more often, PPFD METER or IR Sync?
PPFD METER ships an update every 3 weeks, and IR Sync fortnightly. Most recently, PPFD METER was updated on October 10, 2026 and IR Sync on October 1, 2026.

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