Comparison

ESP RainMaker Classic vs Grozziie

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • ESP32/ESP32-S2 integration
  • Account sign-up
  • Device provisioning
  • Device control and management
  • Auto-rendered UI
  • Firmware description integration
Features
Read full description

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/

About

Grozziie

This app simplifies printing from your iOS device to Bluetooth-enabled printers. It supports various file formats, offers label design tools, and provides direct wireless printing with a user-friendly interface and print preview.

Highlights
  • Bluetooth direct printing
  • Label design tools
  • Multi-format document printing
  • Print preview
  • Print history management
  • User-friendly interface
Features
Read full description

Introducing our Grozziie Label Printing App – the ultimate printing solution for iOS devices! Grozziie stands as an innovative printing app available on App Store, designed to effortlessly connect and print via Bluetooth directly from your iOS device. With support for various label formats and customizable settings, this app ensures easy, efficient, and high-quality label printing. Here are some of its exceptional features: Effortless Setup: Grozziie ensures a simple and easy setup experience, ensuring quick and hassle-free connections between your iOS device and a Bluetooth-enabled printer. No technical expertise needed! Versatile Printing: Print a diverse range of file formats, from PDFs to Word documents and various image types, directly from your iOS device. Create labels : Unleash your creativity with our intuitive design tools, crafted for effortless label personalization suited for any occasion or business requirements. Select from a diverse array of templates to craft visually striking labels that capture attention and meet your unique design preferences. Multi-Format Support: Enjoy the flexibility of printing different document types. Grozziie allows adjustments for print settings like paper size, orientation, and quality, ensuring top-notch results. Direct Printing: Say goodbye to cables and complex PC setups. Grozziie empowers you to send print jobs straight from your iOS device to nearby Bluetooth printer. Print Preview: Before hitting 'Print,' take advantage of the preview feature. Review your documents or images to avoid unnecessary prints and make any needed adjustments. Print Management: Keep track of your print history effortlessly. Grozziie maintains a detailed record of past print jobs, simplifying print job management and tracking. User-Friendly Interface: Grozziie boasts a sleek and intuitive interface catering to users of all skill levels. Enjoy a frustration-free printing experience! Fast and Reliable: Experience lightning-fast printing with minimal delays. Grozziie ensures timely delivery of your documents and images. Discover the convenience of wireless printing directly from your iOS device to a Bluetooth-compatible printer. Don't forget, your printer must support Bluetooth to maximize the benefits of this fantastic app.Our app supports direct printing on compatible label printers, ensuring crisp and professional results every time. Whether you're organizing your home, managing inventory, or enhancing your product packaging. Download Grozziie today from App Store and unlock the ease and efficiency of Bluetooth-enabled printing!

Screenshots

ESP RainMaker Classic4 screens
Grozziie4 screens

Verdict

The call

The clearest difference is rating: ESP RainMaker Classic at 4.4 against Grozziie's 3.4. ESP RainMaker Classic also leads on monetization model (free vs free with in-app purchases) and review sentiment (30% vs 9%). Grozziie's advantage is chart position (#198 vs unranked). On price, ratings volume, update cadence and ads 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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

ESP RainMaker Classic holds the better App Store score, 4.4 against 3.4. Both are backed by a comparable volume of ratings — 12 and 11 respectively. Written reviews point the same way: 30% of ESP RainMaker Classic's written reviews are positive against 9% of Grozziie's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 5 weeks. The most recent releases landed on October 13, 2026 and October 14, 2026 respectively.

Scorecard6 real differences · 5 level
ESP RainMaker Classic versus Grozziie: the parameters behind the verdict, then further details
ParameterESP RainMaker ClassicGrozziie
PriceFreeFree
Rating4.4 (12 ratings) — better3.4 (11 ratings)
Positive reviews30.0% of reviews — better9.2% of reviews
Number of ratings12 — better11
Update frequencyEvery 5 weeksEvery 5 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterFree with in-app purchases
Best chart rank—#198 — better
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better18.6
Further details — not scored
Size58 MB396 MB
Age rating4+4+
DeveloperESPRESSIF SYSTEMS (SHANGHAI) CO., LTD.耿 张

Customer experience

ESP RainMaker Classic

All ratings12 ratings
Positive83.3%
Neutral0.0%
Negative16.7%
Written reviews10 reviews
Positive30.0%
Neutral0.0%
Negative70.0%

Grozziie

All ratings11 ratings
Positive54.5%
Neutral9.1%
Negative36.4%
Written reviews87 reviews
Positive9.2%
Neutral3.4%
Negative87.4%

In-app purchases

None

ESP RainMaker Classic

No in-app purchases

None

Grozziie

No in-app purchases

Questions

Is ESP RainMaker Classic free?
ESP RainMaker Classic is free to download, with no in-app purchases.
Is Grozziie free?
Grozziie is free to download, with no in-app purchases.
Which has better reviews, ESP RainMaker Classic or Grozziie?
ESP RainMaker Classic is rated higher. ESP RainMaker Classic averages 4.4 out of 5 from 12 ratings, while Grozziie averages 3.4 from 11 ratings.
Do ESP RainMaker Classic or Grozziie have ads?
Neither ESP RainMaker Classic nor Grozziie shows ads.
Which is updated more often, ESP RainMaker Classic or Grozziie?
ESP RainMaker Classic ships an update every 5 weeks, and Grozziie every 5 weeks. Most recently, ESP RainMaker Classic was updated on October 13, 2026 and Grozziie on October 14, 2026.

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