Mars vs Sentry Defenses
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Mars
Engage in a scientific simulation of establishing a Mars colony. Manage a small group of settlers, research technologies, and build a thriving settlement from a single module. Compete with other human-controlled colonies for success on the Red Planet.
- Scientific Mars settlement simulation
- Research and development of technologies
- Exploration of the Red Planet
- Building and managing specialized structures
- Managing settler types and life cycles
- 3D view of settlement and Mars surface
- Offline playability
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Settle on MARS in a mixture of game and scientific simulation. Take control over a tiny group of 10 settlers and choose a landing site on the barren Mars. Develop your venture from one single landing module into a thriving settlement with hundreds of specialized buildings and even more inhabitants. Research & development of new technologies as well as exploration of the Red Planet are key for establishing a permanent presence in this hostile environment. And you are not alone. Other settlements, each one controlled by a real human somewhere on Earth, are starting to grow everywhere and a competition for being the most successful Mars colony has already begun. Features: - Scientific orientated building & simulation of a Mars settlement - Background story in 6 phases with according phase goals - Mars simulation in 30x real time (even running when app is not active) - Choosing one of 7 Earth organizations providing (dis-)advantages - Research & development of 152 individual technologies - Construction, maintenance & repair of 51 individual building - 35 individual building enhancements (no level 1,2,3...) - Sending Mars exploration teams and analyzing found soil samples - Production & dispatching of 23 different resource/module types - Assignment of 5 settler types to all activities in the settlement - Settler life cycle including children and elders - 3D view of own settlement in authentic Mars topography - Panning & zooming of the Mars surface in high resolution 3D - 100% usable without Internet connection - Optional online: ranking list & other settlements on Mars surface - Unlocking of advanced app functionalities step by step - Tutorial explaining all app functionalities - Contains some Ads but only after 15 Minutes of game and very decent - Contains In-App-Purchases but NO PAY TO WIN! - This is a peaceful app! NO FIGHTING, NO KILLING, NO WAR!
Sentry Defenses
Defend your golden turd from incoming bugs by strategically placing Sentry towers. Earn coins each turn to upgrade your defenses and survive waves of software-inspired enemies. This game playfully represents real-life software bugs found in popular crash reporting tools.
- Strategic tower placement
- Upgrade defenses with earned coins
- Defend against software bug enemies
- Progressive survival turns
- Unique theme based on crash reporting
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Sentry Defenses is a game that allows you to position Sentry towers and guard your golden turd against bugs. On each turn you survive, you are awarded coins that allows you to buy upgrades to improve your defences. The bugs are a result of real life software bugs that arrive into the most popular crash reporting tool, Sentry. Sentry's application monitoring platform helps every developer diagnose, fix, and optimize the performance of their code. Over 1M developers and 60K organizations already ship better software faster with Sentry. Won’t you join them?
Screenshots
Verdict
The clearest difference is rating: Sentry Defenses at 5.0 against Mars's 4.1. Sentry Defenses also leads on in-app purchases (none vs 3) and ads (none vs shown). Mars's advantage is ratings volume (26 vs 5). On price 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. Mars sells 3 one-off in-app purchases. Sentry Defenses asks for nothing beyond the download.
Sentry Defenses holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: Mars has 26 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 66% of Mars's written reviews are positive against 100% of Sentry Defenses's.
| Parameter | Mars | Sentry Defenses |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (26 ratings) | 5.0 (5 ratings) — better |
| Positive reviews | 65.6% of reviews | 100.0% of reviews — better |
| Number of ratings | 26 — better | 5 |
| Update frequency | Every 2 months | — |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 11.0 — better |
| Further details — not scored | ||
| Size | 2.6 GB | 62 MB |
| Age rating | 4+ | 4+ |
| Developer | Stefan Nyul | GetSentry LLC |
Customer experience
Mars
Sentry Defenses
In-app purchases
Mars
- Logistics contract$0.99
- MAA Gold Membership$1.99
- Sponsors contract$2.99
Sentry Defenses
No in-app purchases









