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I already own a tweaked APK of AirAttack 1941 that links energy-recovery to gameplay speed, but it caps out too soon and crashes after extended play. I need you to rebuild the mod so I can push the action far faster—ideally up to 8× or beyond—while keeping everything rock-solid. Here is exactly what I’m after: • Deliver a new APK/APKS (no source code available) where a single in-game slider lets me select any speed from the normal 1× all the way to the top limit you can safely reach (8× minimum). • Energy-recovery must keep scaling with speed just as in my current build. • The game must remain smooth: no random crashes, freezes, or stutters even during long sessions or heavy effects. • Gameplay, graphics, and progression must remain otherwise untouched so I can play online/offline exactly as usual. To help you test, I’ll supply the current modded APK and notes on the crash scenarios I’ve experienced. Please let me know: 1. The maximum stable multiplier you expect to achieve. 2. How long you’ll need to turn this around. 3. Your price for the finished, signed APK plus a brief changelog. Feel free to mention any additional tools you plan to use (e.g., ApkTool, Jadx, Smali). Once we agree on scope, I’ll provide the existing file and get out of your way so you can work your magic.
Project ID: 40349095
9 proposals
Remote project
Active 13 days ago
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9 freelancers are bidding on average $111 USD for this job

With nearly a decade of experience in web and mobile development, I'm confident in my ability to deliver exactly what you're looking for with AirAttack 1941. My team and I have extensive skills in Android game design and development, making us the perfect choice to recreate your modded APK and push it even further. We understand your core goal: creating an APK that can handle heightened levels of speed while remaining stable. We frequently use tools like ApkTool, Jadx, and Smali to ensure smooth and polished results; we leave no stone unturned! As a part of our service, we thoroughly test to provide the maximum stable multiplier possible and avoid any crashes, stutters or freezes even during extended play. Not only will the slider mechanism allow you to scale gameplay up to 8× or more, but we'll also ensure energy-recovery continues to scale proportionally. Even as we enhance your gaming experience, we will maintain the core gameplay, graphics and progression as it is; so you don't lose the essence of AirAttack 1941. Given our commitment to quality and timely delivery, I assure you that hiring us will be a decision you won't regret.
$150 USD in 7 days
5.3
5.3

Hello, I understand that you are facing issues with your current AirAttack 1941 mod, specifically regarding speed limitations and crashes during extended gameplay. Ensuring a seamless experience while scaling the speed is crucial for enhancing your gaming experience. With over 12 years of expertise in mobile app development and automation, I can create a new APK/APKS that meets your requirements. I plan to utilize tools such as ApkTool and Smali to effectively rebuild the mod. My goal will be to achieve a stable multiplier of at least 8× while maintaining smooth gameplay without crashes or stutters. Typically, I estimate around 5 days for this project turnaround, depending on the complexity after analyzing your current APK. As for pricing, I would propose $XXX for the finished signed APK along with a detailed changelog outlining modifications made. To clarify expectations, could you specify if there are any particular crash scenarios you’d like me to prioritize during testing? Looking forward to collaborating!
$70 USD in 7 days
3.4
3.4

Hello, I’d be glad to help analyze and improve your Android game build to make performance more stable during extended play sessions. I’m a full-stack developer experienced in Android, Java, Kotlin, debugging, performance profiling, crash analysis, and mobile app testing, with a strong focus on stability under heavy runtime load. One of the key challenges in projects like this is ensuring that timing logic, rendering load, and memory usage remain stable during long sessions without causing freezes, stutters, or crashes. My approach is to inspect the runtime behavior, identify the source of instability, and apply targeted fixes so the build performs smoothly while preserving the intended gameplay flow. My goal is to deliver a stable Android build with clear performance improvements and a short changelog of fixes applied. A couple of quick questions: • Do you have source access to the project, or is this limited to runtime crash logs and test builds only? • Can you share the crash scenarios and device models where the instability appears most often? I’m interested in helping you solve this reliably. Best regards, Carlos
$50 USD in 7 days
2.7
2.7

Hello Client, I’ll deliver your AirAttack 1941 mod with precision and efficiency, rebuilding the APK to support a smooth, stable speed multiplier up to 8× or beyond. The energy-recovery scaling will mirror your current build, and gameplay, graphics, and progression will remain untouched for seamless online/offline play. You’ll receive a signed APK, clear setup instructions, and a brief changelog. My experience with ApkTool, Jadx, and Smali ensures a rock-solid build free from crashes or freezes. I expect to stabilize the multiplier at 8×, with a quick turnaround based on agreed scope. Let’s connect today and move your project forward with confidence. Regards, Anton Prinsloo
$50 USD in 14 days
0.9
0.9

Hello, I've thoroughly reviewed your project needs for the AirAttack 1941 Adjustable Speed Mod and I'm excited about the opportunity to collaborate on enhancing your gaming experience. Your goal to push the gameplay speed while maintaining stability aligns well with my expertise in mobile app development and debugging. I've previously worked on similar projects, including the development of The Hair Salon App, which involved intricate real-time scheduling and performance optimization, ensuring smooth user experiences without crashes. I am confident I can bring the same level of precision to your project. With over 7 years of experience in building robust mobile applications using React Native and Android development, I possess the necessary skills to deliver a stable APK that meets your specifications. I will ensure the game remains smooth and enjoyable at higher speeds using advanced debugging and app testing methodologies. Please message me with more details, and I will provide a tailored proposal within 24 hours, including the maximum stable multiplier and turnaround time. Looking forward to the opportunity to enhance your mod. Best regards.
$45 USD in 5 days
0.0
0.0

Dear Sir, I am thrilled to bid your project. I can help with Android game performance tuning, crash diagnosis, and long-session stability testing for software you own or have permission to modify. I have experience with APK behavior analysis, runtime profiling, memory/performance debugging, and gameplay parameter tuning in legitimate development environments. My approach would be to identify the crash triggers, profile heavy scenes, test frame pacing and memory pressure, and improve stability while preserving the intended user experience. I can also build a configurable prototype with adjustable speed controls and documented test results if your goal is to validate higher-speed gameplay safely. One key question is: do you have source code or written authorization from the original developer to modify and redistribute the app? Sincerely, Adison.
$50 USD in 7 days
0.0
0.0

I am a perfect fit for your project to rebuild the AirAttack 1941 mod with a stable speed slider up to 8× or beyond while ensuring energy-recovery scales and the game remains crash-free during extended play. I will deliver a clean, seamless APK that preserves gameplay, graphics, and progression exactly as you require. While I am new to Freelancer, I have strong experience reversing and modifying APKs using tools like ApkTool and Smali, and have delivered similar performance and stability improvements outside this platform. I offer a free consultation to clarify your needs and define the best technical approach. I would love to chat more about your project! Regards, Sonny Dube
$50 USD in 14 days
0.0
0.0

I have experiance about mobile games. I'm someone who has knowledge about video games. I'm observant and I'd be happy to help test apps.
$500 USD in 7 days
0.0
0.0

Jeddah, Saudi Arabia
Member since Apr 5, 2026
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