ESP RainMaker Classic vs Flet
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ESP RainMaker Classic
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.
- ESP32/ESP32-S2 integration
- Account sign-up
- Device provisioning
- Device control and management
- Auto-rendered UI
- Firmware description integration
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Realise your ideas faster with ESP32/ESP32-S2 using ESP RainMaker. ESP RainMaker app offers the following: - Signing up for the ESP RainMaker account - Provisioning devices based on the ESP RainMaker firmware - Controlling and Managing the devices - Auto rendering of the UI based on the device descriptions in the firmware For more information, please visit https://rainmaker.espressif.com/
Flet
This app allows developers to instantly preview and test their Python-based Flet applications on iOS devices. It connects to local or hosted Flet apps, enabling real-time UI updates without the need for rebuilding or publishing. This streamlines the development workflow for creating cross-platform applications.
- Real-time preview on iOS
- Test local or hosted apps
- Instant UI updates
- Single Python codebase
- Cross-platform development
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Flet is an open-source, Python-first framework for building modern applications that run on web, desktop, and mobile devices — all from a single Python codebase. With the Flet mobile app, you can preview and test your Flet projects on iOS by entering a URL to your Flet app running locally or hosted online. Your app is rendered instantly as a native, interactive mobile experience, making iteration fast and easy. Features: • Real-time preview of Flet apps on iOS • Works with local development servers or internet-hosted Flet apps • No need to rebuild or publish to see UI changes Helpful links: • Getting started with mobile testing: https://docs.flet.dev/getting-started/testing-on-mobile/ • Project website: https://flet.dev • Source code: https://github.com/flet-dev/flet
Screenshots
Verdict
The clearest difference is review sentiment: Flet at 100% against ESP RainMaker Classic's 30%. Flet also leads on rating (5.0 vs 4.4). ESP RainMaker Classic's advantage is update cadence (every 5 weeks vs every 3 months). On price, ratings volume, ads and in-app purchases there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Flet holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 12 and 8 respectively. Written reviews point the same way: 30% of ESP RainMaker Classic's written reviews are positive against 100% of Flet's.
ESP RainMaker Classic ships an update every 5 weeks, Flet every 3 months. The most recent releases landed on September 15, 2026 and September 10, 2026 respectively.
| Parameter | ESP RainMaker Classic | Flet |
|---|---|---|
| Price | Free | Free |
| Rating | 4.4 (12 ratings) | 5.0 (8 ratings) — better |
| Positive reviews | 30.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 12 — better | 8 |
| Update frequency | Every 5 weeks — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 | 13.0 |
| Further details — not scored | ||
| Size | 55 MB | 202 MB |
| Age rating | 4+ | 4+ |
| Developer | ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD. | Appveyor Systems Inc. |
Customer experience
ESP RainMaker Classic
Flet
In-app purchases
ESP RainMaker Classic
No in-app purchases
Flet
No in-app purchases
Questions
Is ESP RainMaker Classic free?
Is Flet free?
Which has better reviews, ESP RainMaker Classic or Flet?
Do ESP RainMaker Classic or Flet have ads?
Which is updated more often, ESP RainMaker Classic or Flet?
Other comparisons
