Comparison

MetroMonkey vs BlueSpy

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

Head to head
About

MetroMonkey

Features
Read full description

MetroMonkey is a metronome app designed to be as simple for musicians and artists as possible. β€œJust work and no distraction” is basic principle. You can set tempo, beat count and accent beats. All super fast and with no hassle. All other things can be distractions. App allows to set unusual time signature from 1/4 up to 32/4 and also quick set up of accent beats making it easy to learn music in exotic rhythms. Improve your skills, follow the rhythm.

About

BlueSpy

This tool allows you to inspect, read, and write data with Bluetooth Low Energy devices. Explore device capabilities, analyze behavior, and understand security levels through real-time scanning and interactive features.

Highlights
  • Scan nearby BLE devices in real-time
  • Sort and filter peripherals
  • Identify device types and models
  • Read and write peripheral data
  • Explore communication logs
  • Configure custom settings
Features
Read full description

BlueSpy is the next generation BLE peripheral analyzer tool that allow you to inspect, read and write data with virtually any device capable of communicate with Bluetooth Low Energy standard and GATT profile. BlueSpy is an experimental tool that let you explore the capabilities of your nearby bluetooth devices and interact with them so that you can use it to: debug, analyze, measure or reverse engineering in the attempt to better understand their behaviour and their security level. BlueSpy is mostly a free tool, but in the effort to maintain and evolve it some features will only be availables under in-app purchase. Key Features: - Scan nearby device and return advertisment data in realtime. - Sort peripherals by name, identifier and signal strength. - Filter scanned peripherals. - Identify device type and model based on expandable knowledge base. - Read peripheral services, characteristics and descriptors. - Write data to peripheral characteristics. - Explore logs for any communication between BlueSpy and your BLE devices. - Configure custom settings like auto-notification, auto-remove unreachable peripherals, stop scan on idle, and more. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

MetroMonkey4 screens
BlueSpy4 screens

Verdict

The call

MetroMonkey and BlueSpy are too close to call on the numbers: across 6 compared parameters β€” price, update cadence, ads and in-app purchases among them β€” neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. MetroMonkey sells 1 one-off in-app purchase and BlueSpy sells 7 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

MetroMonkey ships an update every 24 months, BlueSpy every 17 months. The most recent releases landed on October 3, 2026 and October 11, 2026 respectively.

ScorecardNo meaningful differences
MetroMonkey versus BlueSpy: the parameters behind the verdict, then further details
ParameterMetroMonkeyBlueSpy
PriceFreeFree
Positive reviewsβ€”100.0% of reviews
Update frequencyEvery 24 monthsEvery 17 months β€” better
AdsNoNo
In-app purchasesYesYes
Monetizationβ€”Free with in-app purchases
DevicesiPhoneiPhone, iPad β€” better
Requires iOS18.418.0 β€” better
Further details β€” not scored
Size1 MB849 MB
Age rating4+4+
DeveloperMikhail VyrtsevGiuseppe Mazzilli

In-app purchases

1 purchases

MetroMonkey

One-time1
  • Unlock full app$0.99
7 purchases

BlueSpy

Subscriptions3
  • Bronze Membership$0.991 Month
  • Gold Membership$3.991 Month
  • Platinum Membership$4.991 Month
One-time4
  • Characteristic Write Feature$0.99
  • 1-Year Subscription$3.99
  • 2-Year Subscription$6.99
Show 1 more
  • 3-Year Subscription$8.99

Questions

Is MetroMonkey free?
MetroMonkey is free to download, with in-app purchases available.
Is BlueSpy free?
BlueSpy is free to download, with in-app purchases available.
Do MetroMonkey or BlueSpy have ads?
Neither MetroMonkey nor BlueSpy shows ads.
Which is updated more often, MetroMonkey or BlueSpy?
MetroMonkey ships an update every 24 months, and BlueSpy every 17 months. Most recently, MetroMonkey was updated on October 3, 2026 and BlueSpy on October 11, 2026.

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