Letter Lounge vs MathFinder
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Letter Lounge
This word game was developed by students to provide an engaging alternative to traditional word games for young learners. It focuses on problem-solving and coding skills while offering a fun way to play with words.
- Educational word game
- Student-developed
- Problem-solving focus
- Coding skills integration
- Engaging gameplay
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Students in Grand Prairie were given a simple problem during App Development Camp… Hangman just isn’t appropriate for young students in 2025… so how can we engage them in word game play in a similar fashion. These are their responses. Not only did they learn to code, but they learned to solve a problem!
MathFinder
Explore math and science in the real world through an engaging storyline. Investigate locations, watch expert videos, and make your own observations to advance your mission. Features virtual exploration and geolocation-based scavenger hunts.
- Real-world math and science discovery
- Storyline-driven extraterrestrial mission
- Expert videos on STEM concepts
- User-generated observations and questions
- Virtual location exploration
- Geolocation scavenger hunts
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Now with Augmented Reality tools and overlays! This mobile app designed for children ages 8-16 allows you to discover math and science in real world places. You are immersed in a story line where you are an extraterrestrial investigating real world sites, gaining ranks and credits to advance on your mission. Watch videos by community members and STEM experts where you learn about how math and science appear in the world around you from the veins of a leaf to the design of a soccer field. Make your own observation and pose your own questions. Experience these locations virtually or use the app's geolocation features to engage in a scavenger hunt. This app was created by the nonprofit talkSTEM in partnership with Southern Methodist University's Guild Hall.
Screenshots
Verdict
The clearest difference is update cadence: MathFinder at weekly against Letter Lounge's every 3 weeks. MathFinder also leads on iOS requirement (15.0 vs 18.0). On price, rating, ratings volume 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Letter Lounge against 5.0 for MathFinder. Both are backed by a comparable volume of ratings — 2 and 3 respectively.
Letter Lounge ships an update every 3 weeks, MathFinder weekly. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.
| Parameter | Letter Lounge | MathFinder |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) | 5.0 (3 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 2 | 3 — better |
| Update frequency | Every 3 weeks | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 156 MB | 684 MB |
| Age rating | 9+ | 4+ |
| Developer | Grand Prairie Independent School District | talkSTEM |
Customer experience
Letter Lounge
MathFinder
In-app purchases
Letter Lounge
No in-app purchases
MathFinder
No in-app purchases
