Preposition Builder Master Pro vs EDDIE
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Preposition Builder Master Pro
Learn English prepositions and grammar by correctly placing words to form sentences and common sayings. This game offers multiple difficulty levels, from beginner to expert, and includes a fun way to master idioms and expressions. Compete with others or practice solo to improve your language skills.
- Sentence building with prepositions
- Multiple difficulty levels (Beginner to Expert)
- Proverbs and Sayings level
- Time penalties for errors
- Scoring based on speed and accuracy
- Online multiplayer mode
- Game Center integration
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Learn prepositions in English and grammar by putting the prepositions in place to form correct sentences and sayings. Preposition Master is a fun and educational game for kids and English language students of all ages who want to learn and improve their language skills in a more entertaining way. How do you play? It’s easy. The game consists of putting the prepositions from each level in the correct place to form a correct sentence. (Beginner, competent, professional, expert, sayings.) If you make a mistake and click the incorrect preposition, there is a time penalty. Once you have completed the sentence you will receive a score based on how fast you were and your total number of errors. You can share your knowledge with other players worldwide thanks to online multiplayer mode or with your friends on Game Center. Are you an English expert who wants to show off your skills? Are you an English student who wants to improve your skills? Preposition Master will help you use prepositions in sentences correctly. Preposition Master is the first game of its kind designed and developed completely by educators to help students improve one of the biggest problems language learners all face, correct use of prepositions. With four levels from beginner to expert, Preposition Master is a challenge for everyone from the Beginner to the most seasoned English language communicators. The Proverbs and Sayings level is a great way to learn and remember popular English idioms and expressions. These are the levels: Beginner: Ideal for children. This level contains the easiest sentences with the fewest prepositions to work with. Competent: This is where things start to get harder. This level is great for learners who are a bit farther along in their English language learning adventure. Professional: Great for users with a solid base in English who want to keep their skills up to date. Expert: Only for those with the most proficient English skills. Are you one of them? Do you have what it takes to become the next Preposition Master? Try your luck in single player mode or against friends and other players worldwide. Learn English with a smile on your face.
EDDIE
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EDDIE - Lung: Your Personal Lung Cancer Guide Lung cancer is the #1 cancer killer in America — but when caught early, survival rates dramatically improve. The problem? Most people don't know their risk, don't know if they qualify for screening, and can't get clear answers between doctor visits. EDDIE - Lung changes that. Developed by a surgical oncologist and powered by Microsoft AI, EDDIE - Lung puts expert-level lung cancer education and risk assessment in your pocket — free, private, and available 24/7. DO YOU QUALIFY FOR FREE LUNG CANCER SCREENING? Medicare and most insurers cover annual low-dose CT (LDCT) scans for qualifying adults — but millions of eligible Americans don't know they qualify. EDDIE - Lung's built-in USPSTF 2021 Eligibility Checker tells you instantly. You may qualify if you are: Age 50-80 Have a 20+ pack-year smoking history Currently smoke or quit within the last 15 years KNOW YOUR RISK Our comprehensive 4-section risk assessment evaluates your complete lung cancer risk profile: Personal history and demographics Smoking history with automatic pack-year calculation Occupational and environmental exposures (asbestos, radon, chemicals) Current symptoms and family history ASK EDDIE — YOUR AI LUNG CANCER GUIDE Have questions about your CT results? Wondering about treatment options? Confused about staging? Ask EDDIE — your personal AI lung cancer companion, available anytime: Lung cancer screening, diagnosis, and staging explained in plain language Treatment options including surgery, immunotherapy, targeted therapy, chemotherapy, and radiation Clinical trial opportunities Questions to ask your doctor at your next visit WHY EDDIE? EDDIE stands for Eliminating Disparities through Data-driven Intelligent Empowerment. Built by Cancer Treatment Specialist, PC — a surgical oncology practice committed to making expert cancer education accessible to everyone, regardless of background or zip code. YOUR PRIVACY IS PROTECTED EDDIE - Lung collects zero personal data. All risk calculations happen locally on your device. AI chat is powered by Microsoft Copilot Studio under Microsoft's privacy policy. Nothing is stored. Nothing is shared. EDDIE - Lung provides educational information only — not medical advice or diagnosis. Always consult your physician for personalized screening and treatment decisions. askeddie.org | cancerexpert.org
Screenshots
Verdict
Preposition Builder Master Pro and EDDIE are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
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. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Preposition Builder Master Pro | EDDIE |
|---|---|---|
| Price | Free | Free |
| Rating | 3.9 (19 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 19 — better | — |
| Update frequency | Every 2 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 14.0.0 — better |
| Further details — not scored | ||
| Size | 45 MB | 23 MB |
| Age rating | 4+ | 12+ |
| Developer | Imanol Fernandez Gorostizaga | Derrick Beech |
In-app purchases
Preposition Builder Master Pro
No in-app purchases
EDDIE
No in-app purchases
Questions
Is Preposition Builder Master Pro free?
Is EDDIE free?
Do Preposition Builder Master Pro or EDDIE have ads?
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