EyeOnWater vs First Grade Learning Adventure
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
EyeOnWater
Contribute to scientific research by measuring and reporting the color of nearby bodies of water. Your data helps scientists track water quality and life within it over time, building on a long-standing scientific observation method.
- Measure water color
- Contribute to scientific research
- Track water quality
- Observe algae presence
- Utilize Forel-Ule scale
- View data on website
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The EyeOnWater concept consists of an App and a website. The app allows you as user to make a contribution to science and supply information about the water colour of fresh- as well as saline waters (lakes, rivers, coastal waters, seas and oceans) near your location or elsewhere. The measurement is sent to the central server, validated and stored, after which it is visible via the EyeOnWater website: www.eyeonwater.org What is it you measure? Water colour is an indication for life (e.g. algae) in the water. Scientists have been measuring this in marine waters via the Forel-Ule scale for more than 200 years. Your measurements will contribute to this long term observation and continue the timeseries. The EyeOnWater concept has been developed by NIOZ (scientific background), Veerder (Design), and MARIS (Technical development), with assistance from other partners in the EU funded project Citclops: www.citclops.eu Join us!
First Grade Learning Adventure
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Make first grade skills stick with 16 joyful mini-games designed around real learning science — spaced review, second chances, and adaptive difficulty that keeps kids challenged but never overwhelmed. LEARN & PRACTICE • Sight Words & Letter Sounds • Rhyme Time, Opposites, Syllable Claps • Finish the Sentence & Sort It Out • Counting, Skip Counting, Tens & Ones • Addition & Subtraction to 20 • Compare Numbers & Missing Numbers • Telling Time & Counting Money • Shapes, Patterns & Word Problems KIDS LOVE IT • Earn coins and XP with every correct answer • Unlock avatars, color themes & power-ups in the Reward Shop • Daily gifts, streaks, achievements & a friendly weekly leaderboard • Cheerful voice reads every question out loud PARENTS LOVE IT • 100% offline — no internet used, ever • No ads, no purchases, no accounts, no data collected • Parent dashboard shows progress by skill (behind a parent gate) • Gentle, encouraging feedback — mistakes become learning moments Designed for ages 5–8. Perfect for daily 10-minute practice sessions.
Screenshots
Verdict
The clearest difference is price: EyeOnWater at Free against First Grade Learning Adventure's $0.99. On ads, in-app purchases, device support and iOS requirement 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
EyeOnWater is free to download; First Grade Learning Adventure costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | EyeOnWater | First Grade Learning Adventure |
|---|---|---|
| Price | Free — better | $0.99 |
| Rating | 2.5 (2 ratings) — better | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.6 |
| Further details — not scored | ||
| Size | 31 MB | 3 MB |
| Age rating | 4+ | 4+ |
| Developer | MARIS B.V. | Kevin Fitzgerald |
In-app purchases
EyeOnWater
No in-app purchases
First Grade Learning Adventure
No in-app purchases
Questions
Is EyeOnWater free?
Is First Grade Learning Adventure free?
Do EyeOnWater or First Grade Learning Adventure have ads?
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