# NNPO vs Astro Input

The clearest difference is price: NNPO at Free against Astro Input's $1.99. NNPO also leads on update cadence (every 2 months vs every 41 months). Astro Input's advantage is rating (3.0 vs 2.0). On ratings volume, ads, in-app purchases and device support there is nothing between them.

NNPO is free to download; Astro Input costs $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Astro Input holds the better App Store score, 3.0 against 2.0. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

NNPO ships an update every 2 months, Astro Input every 41 months. The most recent releases landed on October 24, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | NNPO | Astro Input |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | [2.0 (2 ratings)](https://appshunter.io/ios/app/nnpo/id1570390251/reviews) | **[3.0 (1 ratings)](https://appshunter.io/ios/app/astro-input/id6447990990/reviews)** |
| Number of ratings | **2** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 41 months |
| Monetization | **Free** | Paid |
| Size | 27 MB | 2 MB |
| Requires iOS | **14.2** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen NNPO Technology Co.,Ltd](https://appshunter.io/developer/1570390253) | [Pablo Cussa de Souza](https://appshunter.io/developer/1654566871) |

## What reviewers say

### NNPO

[App page](https://appshunter.io/ios/app/nnpo/id1570390251)

This app provides advanced thermal imaging and infrared night vision capabilities for your device. It allows users to view and capture thermal data, enhancing visibility in low-light conditions.

**Highlights:** Thermal image scope, IR night vision, Low-light visibility enhancement, Capture thermal data

**Features:** macOS Compatibility

**In-app purchases:** none


### Astro Input

[App page](https://appshunter.io/ios/app/astro-input/id6447990990)

This is a custom keyboard that allows users to type astrological symbols on any smartphone application. It provides a unique way to communicate and express oneself using celestial imagery. The app is designed for ease of use and privacy.

**Highlights:** Type astrological symbols, Works on any app, Easy installation and configuration, Privacy-focused data collection, Supports iPhone and iPad

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is NNPO free?

NNPO is free to download, with no in-app purchases.

### Is Astro Input free?

Astro Input costs $1.99, with no in-app purchases.

### Which has better reviews, NNPO or Astro Input?

Astro Input is rated higher. NNPO averages 2.0 out of 5 from 2 ratings, while Astro Input averages 3.0 from 1 ratings.

### Do NNPO or Astro Input have ads?

Neither NNPO nor Astro Input shows ads.

### Which is updated more often, NNPO or Astro Input?

NNPO ships an update every 2 months, and Astro Input every 41 months. Most recently, NNPO was updated on October 24, 2026 and Astro Input on October 15, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*