Alien Observer vs Arrow Mismatch
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Alien Observer
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Your Home world is slowly dying. You are a young alien Observer Corps agent on your first deep assignment, sent to study a remarkably promising third planet the locals call Earth. Plot your orbits, scan, learn, and try to stay invisible. WHAT YOU DO Design transfer orbits and time your burns in an original orbital mechanic. Scan biomes, cities and oceans through alien eyes. Solve mini-games to calibrate sensors and stabilize anomalies. Make strategic calls. Manage antimatter, intel and samples. Upgrade your ship. Level up your Observer. Climb the Council ranks. File reports. Honor the Prime Directive: remain unseen. A blend of orbital strategy, RPG progression and resource management, with a healthy dose of dry humor about a bureaucratic alien civilization trying very hard to understand us. SUBSCRIPTION Annual Season Pass is an auto-renewable subscription, 1 year duration. Price is shown on the purchase screen before you confirm, in your local currency. The Season Pass unlocks Advanced Autopilot, two Data Storage licenses, the Chapter 2 expansion, the Generalist class, the Pets Pack with all four companions, and every DLC released during the year. All unlocked content is yours to keep permanently, even after the subscription ends. IN-APP PURCHASES Alien Observer is free to play. Optional one-time purchases include antimatter reactor refills, the Data Storage License, Advanced Autopilot, the Chapter 2 expansion, and animal companions (Laika, Ham, Cow, HAL9000), available individually or as a Pets Pack. These purchases never expire. ADS Optional rewarded video ads can be watched to earn small in-game rewards (a unit of antimatter, a skill point, raw data, or a reduction in Notoriety). Ads are never required to progress. The Annual Season Pass does not remove ads, since ad rewards remain useful regardless of subscription status — but Season Pass benefits make them far less necessary. TERMS AND PRIVACY Terms of Use (EULA): https://alienobserver.app/terms Privacy Policy: https://alienobserver.app/privacy Website: https://alienobserver.app
Arrow Mismatch
A casual puzzle game that tests observation and reaction speed. Players match arrow directions to tile labels, with increasing difficulty as levels progress. It's designed for quick, enjoyable brain training.
- Observation skill challenge
- Reaction speed test
- Simple, easy-to-learn rules
- Gradually increasing difficulty
- Brain-training for active minds
- Direction recognition and quick judgment
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Arrow Mismatch is a light and enjoyable puzzle game designed to challenge your observation skills and reaction speed. Players need to quickly compare the arrow direction with the word shown on each tile, then find the targets where the direction and label do not match. The rules are simple and easy to learn, making it great for quick casual play. As levels progress, the board becomes larger and the challenge gradually increases, keeping the game fun, focused, and engaging. Arrow Mismatch is also a relaxing choice for older adults who enjoy simple brain-training games. Through direction recognition, quick judgment, and easy tapping controls, the game helps keep the mind active in a casual and enjoyable way.
Screenshots
Verdict
The clearest difference is in-app purchases: Arrow Mismatch at none against Alien Observer's 10. Arrow Mismatch also leads on iOS requirement (15.0 vs 17.6). Alien Observer's advantage is update cadence (every 3 weeks vs every 6 weeks). On price, ads 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. Alien Observer sells 10 in-app purchases, starting at $29.99 per year. Arrow Mismatch asks for nothing beyond the download.
Alien Observer ships an update every 3 weeks, Arrow Mismatch every 6 weeks. The most recent releases landed on October 9, 2026 and October 3, 2026 respectively.
| Parameter | Alien Observer | Arrow Mismatch |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.0 (1 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 weeks — better | Every 6 weeks |
| Ads | Yes | Yes |
| In-app purchases | Yes | No — better |
| Monetization | — | Ad-supported |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 17.6 | 15.0 — better |
| Further details — not scored | ||
| Size | 640 MB | 234 MB |
| Age rating | +12 | 4+ |
| Developer | Solebo LTD | Dinh Hieu Nguyen |
In-app purchases
Alien Observer
- Annual Season Pass$29.991 Year
- Full Reactor Refill$1.99
- Data Storage License$1.99
- Pet: Laika$3.99
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- DLC Pet: Ham$3.99
- Pet: Cow$3.99
- Pet: HAL9000$3.99
- Advanced Autopilot$4.99
- DLC Pets Pack$9.99
- Chapter 2 License$19.99
Arrow Mismatch
No in-app purchases
Questions
Is Alien Observer free?
Is Arrow Mismatch free?
Do Alien Observer or Arrow Mismatch have ads?
Which is updated more often, Alien Observer or Arrow Mismatch?
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