Comparison

Plant Light Meter vs LookOnce

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

Head to head
About

Plant Light Meter

This app helps indoor plant owners assess the light conditions their plants are receiving. By using your phone's camera, you can measure light levels and understand if they are optimal for your specific plant's needs, preventing common issues like lack of light.

Highlights
  • Measure natural and artificial light
  • Interpret light levels for plant health
  • Compatible with rear camera
Features
Currently charting
Read full description

After excessive watering, lack of light is the second most common cause of death of indoor plants. Better light conditions will keep your plants healthy. Measure your plants’ ideal light levels for the price of a cup of coffee! How to use: - Launch the application - Point the camera toward the plant’s leaves - Press the “Measure” button How to interpret the measurement: - Very low light: Difficult conditions for plants to survive. - Low light: For plants that can tolerate low levels of light, such as the aglaonema, parlor palm, and philodendron. - Medium light: For the majority of indoor plants, such as the Dracaena, Pothos, and spider plant. - High light: For plants that love light, such as the zebra plant, areca palm, and croton. Features: - Detection of natural light & artificial lights - Compatible with rear camera only Notes: This application allows you to measure the light levels of indoor plants. However, if you need very precise measurements, the use of professional equipment is recommended.

About

LookOnce

This utility app helps you quickly confirm tasks in various daily situations without complex tracking. Data is stored locally for enhanced privacy. Create custom check scenes for different routines and easily manage, share, or export your completed confirmations.

Highlights
  • Local data storage for privacy
  • Customizable check scenes
  • Focused, simple check process
  • Scene management with favorites
  • Swipe-left deletion for scenes
  • Sharing and export of results
Features
Read full description

LookOnce is a quick check tool for different moments in daily life.Your data is stored locally, giving you more peace of mind about privacy. It is not a to-do list, and it is not a complicated tracking app. It is designed for moments when you simply want to confirm something once before moving on — leaving home, traveling, commuting, starting work, preparing for sleep, running errands, or any small routine that you do not want to keep worrying about. You can create separate check scenes for different situations. Open the scene you need, go through the items, and finish the check in a simple, focused way. LookOnce 1.2 improves scene management with favorites and swipe-left deletion. It also adds sharing and export for completed check results, making it easier to save or use your confirmation record when needed. Check once, then let it go.

Screenshots

Plant Light Meter4 screens
LookOnce4 screens

Verdict

The call

The clearest difference is price: LookOnce at Free against Plant Light Meter's $2.99. LookOnce also leads on rating (5.0 vs 4.6). Plant Light Meter's advantage is in-app purchases (none vs 1) and ratings volume (1.1K vs 1). On update cadence and ads 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

LookOnce is free to download; Plant Light Meter costs $2.99 up front. LookOnce sells 1 one-off in-app purchase. Plant Light Meter asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

LookOnce holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Plant Light Meter has 1.1K ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Plant Light Meter ships an update fortnightly, LookOnce every 9 days. The most recent releases landed on October 29, 2026 and October 24, 2026 respectively.

Scorecard8 real differences · 3 level
Plant Light Meter versus LookOnce: the parameters behind the verdict, then further details
ParameterPlant Light MeterLookOnce
Price$2.99Free — better
Rating4.6 (1.1K ratings)5.0 (1 ratings) — better
Positive reviews38.7% of reviews—
Number of ratings1.1K — better1
Update frequencyFortnightlyEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
Best chart rank#186 — better—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better17.0
Further details — not scored
Size217 MB9 MB
Age rating4+4+
DeveloperStudio Nano Ship, Inc.楷文 罗

Customer experience

Plant Light Meter

All ratings1,077 ratings
Positive90.4%
Neutral2.5%
Negative7.1%
Written reviews119 reviews
Positive38.7%
Neutral11.8%
Negative49.6%

LookOnce

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

Bugs and requests

Plant Light Meter

Reported bugs

4 issues
  • Fails to access camera
  • Inconsistent light readings
  • Completely inaccurate measurements
  • Stopped working after update

Requested features

5 requests
  • Add more plant varieties
  • Allow use of front-facing camera
  • Provide numerical light readings
  • Add watering information
  • Improve compatibility with latest devices

LookOnce

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Plant Light Meter

No in-app purchases

1 purchases

LookOnce

One-time1
  • LookOnce Pro$4.99

Questions

Is Plant Light Meter free?
Plant Light Meter costs $2.99, with no in-app purchases.
Is LookOnce free?
LookOnce is free to download, with in-app purchases available.
Which has better reviews, Plant Light Meter or LookOnce?
LookOnce is rated higher. Plant Light Meter averages 4.6 out of 5 from 1.1K ratings, while LookOnce averages 5.0 from 1 ratings.
Do Plant Light Meter or LookOnce have ads?
Neither Plant Light Meter nor LookOnce shows ads.
Which is updated more often, Plant Light Meter or LookOnce?
Plant Light Meter ships an update fortnightly, and LookOnce every 9 days. Most recently, Plant Light Meter was updated on October 29, 2026 and LookOnce on October 24, 2026.

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