THERble vs LUX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
THERble
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オフィス執務者の快適性や、工場の作業者や屋外環境での人の温熱感を評価する温熱指標を、測定機器や気象データなどの物性値から計算し、評価することができます。また、計算結果を、アプリ内のボタンより、画像として保存することができます。 アプリの使い方でわからないことがあった際には、アプリ内コンテンツのHelpページを参照してください。
LUX
Measure ambient light levels in lux or foot-candles instantly. Track minimum, average, and maximum readings, and analyze color temperature. Useful for photography, plant care, and general environmental assessment.
- Instant illuminance measurement
- Color temperature (CCT) reading
- Min/Avg/Max lux tracking
- Foot-candle unit option
- Measurement history
- CSV/PDF export (Premium)
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LUX is a light meter app that measures illuminance (lux) wherever you are. Open the app and instantly see how bright your space is. When to use it - Check lighting in your living room, office, or study area - Set up photography or video shoots - Compare brightness between rooms or times of day - Verify light levels for plants or aquariums - Confirm any task has the right brightness Features - Instant measurement on launch - Hold the value or freeze the screen - Color temperature (CCT / Kelvin) measurement - Auto-recorded Min / Avg / Max lux during a session - Foot-candle (fc) unit toggle - Compare with reference levels by scene (some features need Premium) - Measurement history (up to 3 records free; unlimited history, including saved Min / Avg / Max, with Premium) - CSV / PDF export (Premium) - PPFD / DLI calculation for plants (Premium) - Continuous logging with charts (Premium) Measurements are processed on-device. Terms of Use: https://kojitorishima.org/en/products/lux/terms/ Privacy Policy: https://kojitorishima.org/en/products/lux/privacy/
Screenshots
Verdict
The clearest difference is in-app purchases: THERble at none against LUX's 3. THERble also leads on ads (none vs shown) and device support (3 vs 1). LUX's advantage is update cadence (every 2 weeks vs every 16 months). On price 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
Both are free to download. LUX sells 3 in-app purchases, starting at $1.99 per month. THERble asks for nothing beyond the download.
THERble ships an update every 16 months, LUX every 2 weeks. The most recent releases landed on October 27, 2026 and November 3, 2026 respectively.
| Parameter | THERble | LUX |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 60.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 16 months | Every 2 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 12.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 46 MB | 20 MB |
| Age rating | 17+ | 4+ |
| Developer | SHIN NIPPON AIR TECHNOLOGIES CO.,LTD. | koji torishima |
In-app purchases
THERble
No in-app purchases
LUX
- Monthly Plan7 Days trial$1.991 Month
- Yearly Plan7 Days trial$11.991 Year
- Premium Lifetime$24.99
