To Mars vs Roia
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
To Mars
A retro puzzle and simulation game where players must strategically load a rocket with resources and crew to colonize Mars. Manage fuel, supplies, and mission timing to ensure a successful landing and establish a new home on the red planet.
- Retro puzzle and simulation gameplay
- Resource management for colonization
- Rocket loading and launch mechanics
- Space travel and landing simulation
- Building and survival elements
- Timed challenges
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Are you smart enough to solve the puzzle and colonize Mars? To Mars is a unique retro puzzle / simulation of the soon-to-come real life colonization of Mars; it's fun to play, easy to learn, but very difficult to solve. You have 60 seconds to load all four stages of your rocket with the correct amounts of fuel components, food, and people to colonize Mars. Over the course of the next two minutes, your team of astronauts will lift off from Earth, travel to Mars, touchdown on Mars, and build a new home on the red planet! Calculate the Hydrogen / Oxygen fuel mixture to get from Earth into solar orbit. Determine when to start your deceleration burns from deep space into Mars orbit and for a perfect landing on Mars. Build greenhouses and water mines to generate life sustaining resources. All without running out of supplied resources along the way. If you choose wisely, listen carefully to hints from ground control and the ships captain, watch your resource levels, and learn from your mistakes, you can colonize Mars! Make a wrong decision, however, and leave your ship damaged, floating through space, or stranded, with your crew of astronauts left in cryo-sleep, waiting for rescue. Follow the Red Roadster and Occupy Mars!
Roia
Guide a river's flow from its source to the sea by shaping the terrain. Explore diverse landscapes with a bird companion, experiencing the serenity of nature through innovative gameplay and unique visuals.
- Sculpt terrain to guide water flow
- Explore handcrafted landscapes
- Innovative game mechanics
- Minimalistic graphics
- Original composed music
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Embark on a marvelous adventure as you follow a river from its humble beginnings to the vastness of the sea in Roia. Sculpt the terrain according to your imagination, guiding the water's descent. Along the way, a bird will be your companion, leading you through rugged mountains, dark forests, and sun-drenched meadows. Step into Roia's world and be enveloped by the unmatched serenity of nature, where every moment is a profound journey into the depths of wonder and discovery. Features: - Innovative new game mechanics - Handcrafted landscapes - Many different exciting, challenging and diverse obstacles - Striking, unique, minimalistic graphics - Beautiful music that was specifically composed for Roia www.roiagame.com
Screenshots
Verdict
The clearest difference is price: To Mars at Free against Roia's $2.99. To Mars also leads on review sentiment (100% vs 60%). Roia's advantage is ads (none vs shown) and rating (3.5 vs 3.0). On in-app purchases 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
To Mars is free to download; Roia costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Roia holds the better App Store score, 3.5 against 3.0. Both are backed by a comparable volume of ratings — 6 and 24 respectively. Written reviews complicate that: 100% of To Mars's written reviews are positive against 60% of Roia's, so the app with the better star average is not the one people write more warmly about.
To Mars ships an update every 3 weeks, Roia every 10 days. The most recent releases landed on October 29, 2026 and October 30, 2026 respectively.
| Parameter | To Mars | Roia |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 3.0 (6 ratings) | 3.5 (24 ratings) — better |
| Positive reviews | 100.0% of reviews — better | 59.5% of reviews |
| Number of ratings | 6 | 24 — better |
| Update frequency | Every 3 weeks | Every 10 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported — better | Paid |
| Best chart rank | — | #193 — better |
| Devices | iPhone | iPhone, iPad, iPod — better |
| Requires iOS | 16.2 | 12.0 — better |
| Further details — not scored | ||
| Size | 171 MB | 213 MB |
| Age rating | 4+ | 4+ |
| Developer | Todd Studer | Tobias Sturn |
Customer experience
To Mars
Roia
Bugs and requests
To Mars
Not enough reviews yet to summarise bugs or requests.
Roia
Reported bugs
8 issues- Water disappears in lakes
- Water sources stop spawning when out of view
- Levels are locked after purchase
- Unable to proceed beyond certain levels (e.g., level 8, chapter 3, chapter 6)
- Screen jams or freezes
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- Canoe characters flip over
- Sheep not being counted
- Interface not always recognizing finger moves
Requested features
12 requests- Ability to rotate view for intricate flow paths
- More clarity on objectives/hints
- More levels/chapters
- Option to explore entire stream after finishing
- Overview of accomplishments at the end
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- More guidance or a hint button
- Smoother gameplay polish
- More obvious prompts for next level
- Way to see through obstructions for water
- Feedback when terrain won't move
- More decorations or buildings or animals
- Land Bridges
In-app purchases
To Mars
No in-app purchases
Roia
No in-app purchases









