# ESP RainMaker Classic vs NeoSpectra Scan App

The clearest difference is rating: ESP RainMaker Classic at 4.4 against NeoSpectra Scan App's 3.0. ESP RainMaker Classic also leads on review sentiment (30% vs 0%) and ratings volume (12 vs 2). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ESP RainMaker Classic holds the better App Store score, 4.4 against 3.0. That said, the two scores are not equally well evidenced: ESP RainMaker Classic has 12 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 30% of ESP RainMaker Classic's written reviews are positive against 0% of NeoSpectra Scan App's.

ESP RainMaker Classic ships an update every 5 weeks, NeoSpectra Scan App every 6 weeks. The most recent releases landed on September 26, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | ESP RainMaker Classic | NeoSpectra Scan App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (12 ratings)](https://appshunter.io/ios/app/esp-rainmaker-classic/id1497491540/reviews)** | [3.0 (2 ratings)](https://appshunter.io/ios/app/neospectra-scan-app/id1593426865/reviews) |
| Number of ratings | **12** | 2 |
| Positive reviews | **30.0% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 6 weeks |
| Monetization | Free | Free |
| Size | 55 MB | 138 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD.](https://appshunter.io/developer/1071176699) | [Si-Ware Systems](https://appshunter.io/developer/1271689638) |

## What reviewers say

### ESP RainMaker Classic

[App page](https://appshunter.io/ios/app/esp-rainmaker-classic/id1497491540)

This platform allows developers to quickly realize ideas using ESP32/ESP32-S2 hardware. It facilitates account sign-up, device provisioning, and control, with an automatically rendered UI based on firmware descriptions.

**Highlights:** ESP32/ESP32-S2 integration, Account sign-up, Device provisioning, Device control and management, Auto-rendered UI, Firmware description integration

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

**In-app purchases:** none


### NeoSpectra Scan App

[App page](https://appshunter.io/ios/app/neospectra-scan-app/id1593426865)

This application allows users to scan and analyze samples using a specialized spectrometer to predict their internal properties. It provides insights into scanned materials, requiring both the hardware scanner and a development license.

**Highlights:** Scan samples with NeoSpectra-Scanner, Analyze sample properties, Predict inner material characteristics, Obtain insights from scanned data, Requires development license

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

**In-app purchases:** none


## Frequently asked questions

### Is ESP RainMaker Classic free?

ESP RainMaker Classic is free to download, with no in-app purchases.

### Is NeoSpectra Scan App free?

NeoSpectra Scan App is free to download, with no in-app purchases.

### Which has better reviews, ESP RainMaker Classic or NeoSpectra Scan App?

ESP RainMaker Classic is rated higher. ESP RainMaker Classic averages 4.4 out of 5 from 12 ratings, while NeoSpectra Scan App averages 3.0 from 2 ratings.

### Do ESP RainMaker Classic or NeoSpectra Scan App have ads?

Neither ESP RainMaker Classic nor NeoSpectra Scan App shows ads.

### Which is updated more often, ESP RainMaker Classic or NeoSpectra Scan App?

ESP RainMaker Classic ships an update every 5 weeks, and NeoSpectra Scan App every 6 weeks. Most recently, ESP RainMaker Classic was updated on September 26, 2026 and NeoSpectra Scan App on September 10, 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.*