Pi adds tools for building and launching apps

Pi Network, the smartphone-focused crypto project whose third-party apps run inside its own Pi Browser rather than standard mobile app stores, released a September 4 developer update introducing three additions to its application platform. Selected apps can now retain suitable information on a user's device, access staking data tied specifically to their application, and let users share files through their phone's existing interface.

Pi also launched a reorganized documentation portal covering the process from app registration and sandbox testing through authentication, payments and Mainnet preparation (Pi developer blog).

The release affects the application layer rather than Pi's underlying blockchain protocol. It is intended to reduce several practical development tasks that sit between creating an app and making it usable inside Pi Browser — a recurring point of friction for ecosystems that rely on in-house app stores, where developers must build for a single closed environment before reaching the Mainnet audience.

Local storage can reduce reliance on app servers

An initial group of whitelisted Pi Browser apps can now store preferences, session state and other suitable information directly on a user's device. This could allow an app to remember settings or unfinished activity without operating a backend service solely for those records — a meaningful cost saving for the small developer teams that Pi's app ecosystem largely consists of.

Pi Browser manages the stored information, which remains associated with the particular account and device rather than being uploaded to Pi's servers. The same data will not automatically appear when a user changes phones or accesses the app elsewhere.

Local storage is also not guaranteed to be permanent. Whitelisted apps share a limited pool of device storage, and stale information may be removed when that allocation becomes full. Developers therefore should not rely on it for transaction histories, essential account records, or information that users must always be able to recover.

The capability should not be confused with the persistent backend support previously added to Pi App Studio. Backend storage allows an application to retain information across sessions through infrastructure serving that app. The new feature instead keeps suitable data on the individual device, reducing the need to send every setting or temporary state to a remote system.

Availability and limits of Pi's new tools

The three features differ in where they operate and who can initially use them:

• Local storage — Initial access: whitelisted apps. Boundary: data remains tied to one account and device and may be removed when storage fills.
• Staking-data API — Initial access: whitelisted apps. Boundary: the API returns effective stake only for the application requesting it.
• File sharing — Operation: uses the phone's native sharing menu. Boundary: files and videos are not stored on Pi's blockchain.

Apps can recognize support directed toward them

The staking-data API connects applications with Pi's Ecosystem Directory Staking system. Users can stake Pi toward a particular app to support its position and visibility in the ecosystem directory.

For whitelisted developers, the API returns the effective stake associated with the requesting application. That reading accounts for both the amount committed and a boost based on the selected staking duration, but it does not expose the user's complete staking activity across other apps.

A developer could choose to use the result for app-specific access, recognition or another feature. Pi has not announced a standard benefit attached to the API, and Ecosystem Directory Staking does not automatically generate protocol-level rewards. Any additional incentive would need to be defined and communicated by the application operator.

Pi apps can also open a phone's native sharing menu through the new Pi.shareFile function. A marketplace user could share a receipt or an image of a disputed item, while a game could let players send screenshots or video clips without requiring the developer to build a separate sharing system.

The function does not provide decentralized hosting or place those files on Pi's blockchain. It passes them to sharing services available on the user's device.

Developer documentation now follows one launch path

Pi's technical material was previously distributed across SDK documentation, a community developer guide and a GitHub repository. Developers entering through different pages could consequently encounter overlapping sources or instructions organized for different stages of development.

The new Pi developer portal arranges that material around a single process. It begins with account and application registration, moves through sandbox configuration and SDK integration, and then covers authentication, payments and preparations for Mainnet launch. Pi has also added AI-assisted guidance for authentication and payment integrations.

This consolidation gives developers one current reference instead of requiring them to reconcile several collections of technical material.

The portal and new features occupy one part of a broader application stack. Pi separately scheduled its Protocol v25 upgrade to improve network reliability and introduce cryptographic capabilities that developers could use in privacy-preserving applications. The September tools operate above that protocol layer by addressing storage, app-specific data and mobile interaction.

Pi has also tested later stages of application development. Its Launchpad experiment with the SLICE Testnet token examined token distribution and a model that directs launch commitments into initial liquidity rather than transferring them to a project treasury.

These systems address different parts of the same process. The protocol provides the technical foundation, the developer platform supplies app-building functions, Ecosystem Directory Staking supports discovery, and Launchpad tests how ecosystem tokens could reach users with an initial market.

Whitelisting remains the immediate limit

Pi has not disclosed every application included in the initial whitelist or provided a timetable for opening local storage and the staking-data API more broadly. The first evidence of their usefulness will therefore come from the apps granted access and the functions developers build with them.

Wider availability alone will not establish that the release has expanded Pi's economic utility. The stronger evidence would be more applications reaching Mainnet, users returning after their first visit, and activity continuing after promotional campaigns or token launches have ended — the same retention question that has faced Pi's ecosystem apps since the network opened to broader external connectivity earlier in 2025.

The September update gives developers several practical tools that were previously missing or fragmented. Whether they produce meaningful utility can be judged through the applications and repeat usage that follow.

The article is provided for informational purposes only and does not constitute investment advice.