API Nauta vs Pi
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
API Nauta
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A utility app that allows you to inspect your Open API definitions on your iPhone, Mac, or iPad. Load a JSON or YAML file from the file system or point to a remote URL. The different operations will be presented on your screen, where you will be able to call the endpoints or copy them as cURL commands.
Pi
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pi is a coding agent that runs on your iPhone and iPad. Ask it for something and it gets to work: it writes and runs code in a real shell and Python, uses git, browses the web, and builds apps for you, right on the device. WHAT IT DOES โข Runs commands in a POSIX shell with curl, git and the usual Unix tools โข Writes and runs Python, and installs pure-Python packages with pip โข Clones repositories, edits files, and commits and pushes with your GitHub account โข Browses the web in its own browser, and fills in forms for you โข Builds apps: extensions with their own pages, kept in the session's dock โข Charts data, reads the photos and files you attach, and takes dictation โข Keeps working in the background, and picks up where it left off YOUR MODELS Use the AI provider you already have (sign in, or add an API key), or connect pi to any OpenAI-compatible server, such as Ollama on your Mac. Small models can run entirely on the device. EXTENSIONS AND SKILLS pi uses the pi coding agent's extensions and skills. Install them from GitHub, npm or a file, or ask the agent to write one. You can read and change every extension's code in Settings, and pi asks before any extension uses the camera, the microphone or your location. PRIVATE BY DESIGN pi has no account and collects nothing. Your sessions stay on your device, and your sign-ins and settings can follow you through your iCloud Keychain. What a session sends goes only to the model provider and the sites you choose. Card and document numbers wait in a vault behind Face ID. ALSO MCP servers, Shortcuts ("Ask pi"), sessions you can share as a file, and remote Linux machines through Crabbox. pi needs an account with an AI provider, your own model server, or a model downloaded to the device.
Screenshots
Verdict
API Nauta and Pi are too close to call on the numbers: across 5 compared parameters โ price, ads, in-app purchases and device support among them โ neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | API Nauta | Pi |
|---|---|---|
| Price | Free | Free |
| Positive reviews | โ | 0.0% of reviews |
| Update frequency | โ | Daily |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, Mac | iPhone, iPad, Apple Watch |
| Requires iOS | 26.5 | 26.0 โ better |
| Further details โ not scored | ||
| Size | 2 MB | 163 MB |
| Age rating | 4+ | 17+ |
| Developer | Angel Rueda | Reindeer AI Inc |
In-app purchases
API Nauta
No in-app purchases
Pi
No in-app purchases









