Quickly look up and learn four-letter alpha codes for bird species. This reference tool helps birders speed up field notes and eBird checklist entries by providing a fast way to find abbreviations used in ornithology.



114+ iOS apps & games curated and reviewed
Out of 114+ nemesis code apps and games on iOS, 18 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | Free | 4.8★ (95) | No | No | Jul 2026 | |
| 2 | Free | 4.0★ (4) | No | No | May 2026 | |
| 3 | Free | 4.0★ (24) | No | No | May 2026 | |
| 4 | Free | 4.5★ (314) | No | Yes | May 2026 | |
| 5 | Free | 4.7★ (15K) | Yes | No | Jul 2026 | |
| 6 | Free | 4.5★ (39K) | Yes | Yes | Jul 2026 | |
| 7 | Free | 4.0★ (41) | No | Yes | May 2026 | |
| 8 | Free | 2.0★ (4) | No | No | May 2026 |



Quickly look up and learn four-letter alpha codes for bird species. This reference tool helps birders speed up field notes and eBird checklist entries by providing a fast way to find abbreviations used in ornithology.


Quickly access 4-letter codes used by bird banders for species identification. This reference tool also provides band sizes and important notes for banding specific birds, aiding in ornithological research.






This companion app streamlines gameplay for a popular board game. It helps track objectives, rounds, events, and game outcomes, enhancing immersion with sound and visual effects. Future updates will add more content and features.


Engage in fast-paced, tactical multiplayer shooter combat. Choose from four unique classes and a variety of weapons across multiple environments. Experience furious PvP action with friends and foes.


Engage in a simulated hacking experience where you can perform cybercrimes, jailbreak devices, and spread viruses. Upgrade your hideout and customize your character as you progress through humorous storylines and make impactful decisions.


Build a thriving empire from ancient times to the modern era. Command armies, research technologies, and engage in real-time strategy battles against other players. Conquer the world through warfare and strategic development.


Step into the shoes of a renowned detective to solve a series of baffling deaths. Investigate crime scenes, find hidden objects, and solve challenging puzzles to uncover the truth behind a sinister plot. Explore a nautical mystery and discover secrets in an engaging bonus game.


This companion app provides a single-player game mode for a board game, featuring an AI assistant to guide players through a Martian facility. It explores the AI's true intentions regarding player survival and goals.


Navigate a world of code-based puzzles. Stack commands to guide a hero through mazes and challenges. This game offers quick, engaging brain teasers for short breaks or extended play.


Engage in a thrilling 3D space shooter set in the year 3000. Battle for resources in a new star system across various game modes, including campaign and death-match. Supports VR headsets and external controllers for an immersive experience.


This platform merges social networking with e-commerce, enabling creators, sellers, and buyers to interact. Users can discover products through engaging content and community connections. It fosters a dynamic environment for social interaction and product exploration.


Embark on an old-school action RPG adventure in a magical world. Explore medieval cities and dark dungeons, battle monsters, and engage in thrilling PVP arena battles and Guild Wars. Craft weapons and armor to prepare for epic quests and raids.




Experience a 3D space shooter set in the year 3000, fighting for resources in the new frontier. Engage in campaign or death-match modes with VR and gamepad support. Choose from three playable ships and six skill settings.


A powerful code editor for mobile devices, offering syntax highlighting for over 80 languages, remote file access, and a built-in terminal. Perfect for developers who need to code on the go with a well-designed interface.


Embark on an epic ARPG adventure as an Alliance Guardian defending Astrapolis from the Obsidian Army. Experience revolutionary combat with stunning visuals, engage in massive 150-player PvP battles, and explore randomly generated dungeons for legendary loot. Your choices shape the fate of this dynamic open world.


This app helps you identify birds using AI, track your sightings, and build life lists. Connect with a global community, discover new species, and contribute to conservation efforts. It also allows for easy import of your existing birding data.


Engage in a classic logic puzzle where you deduce a secret code within a set number of attempts. Receive hints after each guess to guide your strategy. Compete with others or challenge yourself through various modes and difficulties.


Transform your smartphone into a remote control for your car alarm. Arm, disarm, and open the trunk directly from your phone via Bluetooth. Enjoy hands-free arming and disarming options.


Engage in a post-apocalyptic roguelike action game where you are humanity's last hope. Fight through waves of enemies and bosses, master skill combos, and upgrade weapons and cyber augmentations to survive.