doodle write vs PPFD METER
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
doodle write
This app helps users practice writing letters, numbers, words, and sentences in both print and cursive. It also includes a doodle pad for creative expression. The app is accessible offline and free of ads or in-app purchases.
- Print and cursive letter practice
- Print and cursive word practice
- Print and cursive sentence practice
- Number writing practice
- Practice writing pads
- Doodle pad
- Offline access
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Practice writing in both print and cursive. When boredom strikes, doodle using the doodle pad. Features include: - letters in print - letters in cursive - numbers - words in print - words in cursive - sentences in print - sentences in cursive - practice writing pads - doodle pad Accessible offline. No in-app purchases. No ads. No subscriptions.
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.
- 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
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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
Verdict
The clearest difference is review sentiment: PPFD METER at 53% against doodle write's 0%. PPFD METER also leads on price (Free vs $2.99) and rating (4.6 vs 3.7). doodle write's advantage is in-app purchases (none vs 3) and ads (none vs shown). On 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
PPFD METER is free to download; doodle write costs $2.99 up front. PPFD METER sells 3 in-app purchases, starting at $1.99 per month. doodle write asks for nothing beyond the download.
PPFD METER holds the better App Store score, 4.6 against 3.7. That said, the two scores are not equally well evidenced: PPFD METER has 128 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 0% of doodle write's written reviews are positive against 53% of PPFD METER's.
doodle write ships an update every 14 months, PPFD METER every 3 weeks. The most recent releases landed on October 9, 2026 and October 22, 2026 respectively.
| Parameter | doodle write | PPFD METER |
|---|---|---|
| Price | $2.99 | Free — better |
| Rating | 3.7 (3 ratings) | 4.6 (128 ratings) — better |
| Positive reviews | 0.0% of reviews | 52.6% of reviews — better |
| Number of ratings | 3 | 128 — better |
| Update frequency | Every 14 months | Every 3 weeks — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Paid | Free with in-app purchases — better |
| Devices | iPad | iPhone, iPad — better |
| Requires iOS | 16.3 — better | 18.0 |
| Further details — not scored | ||
| Size | 115 MB | 46 MB |
| Age rating | 4+ | 4+ |
| Developer | Sigma Sky, LLC | Candas Pamukcu |
Customer experience
doodle write
PPFD METER
In-app purchases
doodle write
No in-app purchases
PPFD METER
- Premium$1.991 Month
- Premium Plus$2.991 Month
- Remove Ads$29.99
