Comparison

GREENHOW PRO vs Ultrasonic Pest Shield

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

Head to head
About

GREENHOW PRO

Features
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GREENHOW PRO is the property of Shenzhen Dwon Technology CO., Limited https://www.dwon.net 1.Backup Contacts and Camera Roll; 2.Play Video, Music; 3.Preview Image๏ผŒ World; Supported File Formats Document : DOC , XLS , PPT , TXT , ELSE; Image: JPG , JPEG , BMP , GIF , ELSE; Audio: MP3 , AAC , AIF , ELSE; Video: MP4 , MOV , MKV , FLV , RMVB , ELSE.

About

Ultrasonic Pest Shield

Features
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Ultrasonic Pest Shield is an advanced frequency generator designed to produce adjustable audio frequencies from 15 Hz up to 70 kHz. Create and play high-frequency signals with customizable settings for different pest-repelling applications. Use targeted frequency presets, adjust signal settings, and keep the desired frequency running with the built-in timer and background playback features. App Features - High Pitch Signal Generator: Adjust pitch frequencies seamlessly with precision controls reaching up to 22,000 Hz. - Pest Frequency Presets: Quickly access preset frequency ranges designed for common household pests, including: Mosquito, Mouse & Rat, Fly, Cockroach - Custom Frequency Control: Fine-tune frequency settings to experiment with different high-frequency ranges and find the setup that works best for your needs. - Countdown Timer & Delay Engine: Program automated playback or schedule delayed sound triggers to play audio effects automatically. - Dynamic Wave Visualizer: Real-time visual feedback with responsive neon sound waves that react instantly to active audio output. - Minimalist Dark Interface: Intuitive iOS design built for quick navigation and effortless frequency switching. * User Guide - Select a pest frequency preset or choose a custom frequency range from the main screen. - Adjust the frequency settings according to your preferred range. - Start playback to generate the selected frequency signal. - Use the integrated timer to automatically stop playback after a specified duration. Privacy policy: https://sites.google.com/appmachinelabs.com/privacypolicy/trang-ch%E1%BB%A7 Terms of Use: https://sites.google.com/appmachinelabs.com/termofuse/trang-ch%E1%BB%A7

Screenshots

GREENHOW PRO2 screens
Ultrasonic Pest Shield4 screens

Verdict

The call

The clearest difference is in-app purchases: GREENHOW PRO at none against Ultrasonic Pest Shield's 3. GREENHOW PRO also leads on ads (none vs shown) and device support (3 vs 1). Ultrasonic Pest Shield's advantage is update cadence (fortnightly vs every 5 weeks). On price there is nothing between them.

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Ultrasonic Pest Shield sells 3 in-app purchases, starting at $6.99 per 7 days. GREENHOW PRO asks for nothing beyond the download.

UpkeepUpdate frequency

GREENHOW PRO ships an update every 5 weeks, Ultrasonic Pest Shield fortnightly. The most recent releases landed on November 2, 2026 and October 31, 2026 respectively.

Scorecard5 real differences ยท 1 level
GREENHOW PRO versus Ultrasonic Pest Shield: the parameters behind the verdict, then further details
ParameterGREENHOW PROUltrasonic Pest Shield
PriceFreeFree
Update frequencyEvery 5 weeksFortnightly โ€” better
AdsNo โ€” betterYes
In-app purchasesNo โ€” betterYes
DevicesiPhone, iPad, iPod โ€” betteriPhone
Requires iOS8.0 โ€” better16.0
Further details โ€” not scored
Size71 MB89 MB
Age rating4+4+
Developer้”ฆๆ‰ ้’ŸThinking Machine

In-app purchases

None

GREENHOW PRO

No in-app purchases

3 purchases

Ultrasonic Pest Shield

Subscriptions3
  • Ultrasonic Pest Shield3 Days trial$6.997 Days
  • Ultrasonic Pest Shield$6.997 Days
  • Ultrasonic Pest Shield$39.991 Year

Questions

Is GREENHOW PRO free?
GREENHOW PRO is free to download, with no in-app purchases.
Is Ultrasonic Pest Shield free?
Ultrasonic Pest Shield is free to download, with in-app purchases available.
Do GREENHOW PRO or Ultrasonic Pest Shield have ads?
Ultrasonic Pest Shield shows ads; GREENHOW PRO does not.
Which is updated more often, GREENHOW PRO or Ultrasonic Pest Shield?
GREENHOW PRO ships an update every 5 weeks, and Ultrasonic Pest Shield fortnightly. Most recently, GREENHOW PRO was updated on November 2, 2026 and Ultrasonic Pest Shield on October 31, 2026.

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