In the era of coexistence of iOS, Android and HarmonyOS, how can small companies reduce costs and improve efficiency in cross-platform development?

For a long time in the past, domestic mobile APP development has been dominated by a dual-platform landscape. R&D teams only needed to focus on the two major systems: iOS and Android. Whether it was early-stage development, mid-stage debugging, or late-stage iteration and maintenance, the overall technical, human, and time costs were relatively controllable. This was also the conventional development model for the vast majority of small and medium-sized Internet companies and entrepreneurial teams. However, starting from 2025, the mobile development ecosystem has undergone a pivotal change: HarmonyOS officially became an independent and mandatory third major platform to adapt to, completely upgrading the original dual-platform development model to a tri-platform parallel one. This change has directly plunged a large number of small and medium-sized companies into a cost dilemma.

Tri-platform Parallelism: Overwhelming Development and Maintenance Pressure for SMEs

For small and medium-sized teams with relatively limited capital, human resources, and technical capabilities, the model of independent tri-platform development is almost unfeasible. Following the traditional native development logic, adapting to iOS, Android, and HarmonyOS requires setting up dedicated R&D teams for each platform, three independent codebases, triple debugging processes, and three rounds of version iterations. This not only directly lengthens the initial development cycle but also requires repeating operations three times for every subsequent function update, bug fix, and system adaptation. Labor costs surge exponentially, maintenance efficiency drops significantly, the overall project budget easily exceeds affordability, and it may even directly slow down the product launch pace, causing missed market opportunities.

Faced with this industry status quo, especially for newly launched APP projects, abandoning native three-end independent development and switching to cross-platform development frameworks has become the most pragmatic and efficient optimal solution for small and medium-sized teams. Currently, after practical implementation verification, there are only two mature and viable paths for cross-platform solutions that can simultaneously support iOS, Android, and HarmonyOS. Below is a comprehensive comparison based on adaptability, development efficiency, performance, and overall costs to help clarify the selection logic.

Two Cross-platform Solutions Supporting Tri-platform: Comprehensive Pros & Cons Analysis

Solution 1: React Native (RN) Cross-platform Framework

React Native is one of the mainstream cross-platform development solutions and does have the capability to support iOS, Android, and HarmonyOS simultaneously, making it the traditional option many technical teams consider first. However, there is a critical hard constraint to highlight: RN's support for HarmonyOS is limited to the specific version 0.72.5—versions higher or lower cannot achieve stable adaptation, which imposes additional technical restrictions on teams.

On one hand, the fixed version limit hinders subsequent technical upgrades and integration of new features, making it difficult to keep pace with HarmonyOS's version iteration. On the other hand, teams need to specially adapt and maintain this specific version, resulting in insufficient technical flexibility. For small and medium-sized teams without mature RN technical accumulation, the cost of troubleshooting and debugging in later stages is not low, failing to truly achieve optimal cost reduction.

Solution 2: Unity Cross-platform Development Solution

The second solution is Unity, the core preferred option for tri-platform adaptation at present. Its most prominent advantage is extremely high development efficiency, which can significantly shorten the R&D cycle. A single core codebase can be quickly packaged and adapted to all three platforms, perfectly avoiding the repetitive workload of independent three-end development and directly reducing labor and time costs from the root.

Many clients ask about performance differences, worrying that cross-platform development may lead to obvious fluency shortcomings. In fact, this concern can be viewed objectively. While Unity's performance is slightly inferior to pure native development, the gap is minimal. Unless the project involves extreme requirements such as ultra-complex special effects rendering or real-time calculation of massive foreground data, it can perfectly adapt to most conventional APP business scenarios. Users barely perceive performance differences in actual use, fully meeting daily product experience standards.

More crucially, Unity has an overwhelming additional advantage: in addition to supporting iOS, Android, and HarmonyOS, it can also be packaged and adapted to mini-programs simultaneously. This means one codebase covers three APP ends + mini-programs, achieving four-end compatibility. For small and medium-sized teams, it equates to "one development, multi-end deployment", additionally expanding mini-program traffic entry points and maximizing the overall cost advantage.

Final Selection Recommendations for Small & Medium Teams: Cost Priority, Pragmatic Implementation

Aligning with the core demands of small and medium-sized companies—controlling costs, shortening cycles, and reducing late maintenance pressure—we have clear practical recommendations for cross-platform solution selection: unless the client explicitly specifies RN for development, Unity should be the default priority for new projects.

Against the backdrop of absolute cost advantages and multi-end adaptation efficiency, obsessing over minor performance differences is practically meaningless. After all, the core goal of small and medium-sized teams is to quickly launch products, control budgets, and adapt to full-platform traffic. Unity precisely meets these needs: it not only solves the adaptation challenges brought by the new HarmonyOS platform but also connects mini-programs, completely breaking free from the cost dilemma of tri-platform development.

Closing Discussion

Faced with the new tri-platform development landscape after HarmonyOS's entry, which of the two solutions (RN or Unity) does your team prefer? Have you had practical experience or lessons learned from implementing tri-end cross-platform projects? Welcome to exchange and discuss together to find the optimal development solution for small and medium-sized teams.