Letter Quest vs Universe Fly
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Letter Quest
This timed puzzle game merges letter tiles to spell words, offering both educational fun for children and mental agility challenges for adults. Compete with friends and global players on leaderboards.
- Merge letter tiles
- Spell words
- Timed challenges
- Zen Mode for learning
- Global leaderboards
- GameCenter integration
Read full descriptionHide full description
Letter Quest is a timed puzzle game fun for all ages -- challenging for adults and also educational for young learners when played in Zen Mode. Young children can learn the alphabet by merging letter tiles, which are then used to spell words, and adults can sharpen their mental agility by racing against the clock to spell as many words as possible before the board fills up with tiles. Compare scores against your GameCenter friends and against the rest of the world via Apple's Leaderboards!
Universe Fly
Read full descriptionHide full description
Explore the Limits of the Universe - "Get ready for an adventure and experience the thrilling journey of a spaceship through space! In this simulation game, you'll face the challenges of the sun, black holes, and Earth's gravity. With only one chance to click, can you make it back to Earth successfully?" One-Click Decisions - "In this unique game, every click determines the fate of your spaceship. Your goal is to navigate through the gravitational fields of the sun, black holes, and Earth using just one click. This is a game that tests your wits and skills. Are you ready to challenge yourself?" Battle of Gravities - "In this addictive game, you'll be up against the forces of gravity and must use a single click wisely to overcome the attraction of the sun, black holes, and Earth. With limited spaceship fuel, strategic thinking is the key to successfully returning to Earth." Space Odyssey - "Ready to embark on a journey into the unknown of space? In this unique simulation game, you'll explore the solar system, face gravity challenges, and attempt to return to Earth with just one click. Every game is a marvelous space odyssey!" Challenge Global Players - "Join space adventures with players from around the world, and prove your skills and intelligence. Share your best scores and see who can become the champion of the spaceship gravity challenge!"
Screenshots
Verdict
The clearest difference is ads: Letter Quest at none against Universe Fly's shown. Letter Quest also leads on update cadence (every 2 weeks vs every 2 months) and iOS requirement (11.0 vs 15.0). On price, in-app purchases and 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Letter Quest ships an update every 2 weeks, Universe Fly every 2 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.
| Parameter | Letter Quest | Universe Fly |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (12 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 12 — better | — |
| Update frequency | Every 2 weeks — better | Every 2 months |
| Ads | No — better | Yes |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 92 MB | 71 MB |
| Age rating | 4+ | 4+ |
| Developer | Floyd Ross | SHIH-CHEN FAN |
In-app purchases
Letter Quest
No in-app purchases
Universe Fly
No in-app purchases
Questions
Is Letter Quest free?
Is Universe Fly free?
Do Letter Quest or Universe Fly have ads?
Which is updated more often, Letter Quest or Universe Fly?
Other comparisons















