# OpenSourceInitiative vs BlueSpy

The clearest difference is in-app purchases: OpenSourceInitiative at none against BlueSpy's 7. OpenSourceInitiative also leads on iOS requirement (11.0 vs 16.0). BlueSpy's advantage is update cadence (fortnightly vs monthly). On price, ads and device support there is nothing between them.

Both are free to download. BlueSpy sells 7 in-app purchases, starting at $0.99 per month. OpenSourceInitiative asks for nothing beyond the download.

OpenSourceInitiative ships an update monthly, BlueSpy fortnightly. The most recent releases landed on September 10, 2026 and September 8, 2026 respectively.

## The numbers

| Metric | OpenSourceInitiative | BlueSpy |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | — | Free with in-app purchases |
| Size | 21 MB | 4 MB |
| Requires iOS | **11.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Meir Tsvi](https://appshunter.io/developer/1048958019) | [Giuseppe Mazzilli](https://appshunter.io/developer/1593372985) |

## What reviewers say

### OpenSourceInitiative

[App page](https://appshunter.io/ios/app/opensourceinitiative/id1487779805)

**Features:** macOS Compatibility

**In-app purchases:** none


### BlueSpy

[App page](https://appshunter.io/ios/app/bluespy/id6451215731)

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:** macOS Compatibility, Family Sharing

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Bronze Membership | $0.99 | per month |
| Gold Membership | $3.99 | per month |
| Platinum Membership | $4.99 | per month |
| Characteristic Write Feature | $0.99 | one-time |
| 1-Year Subscription | $3.99 | one-time |
| 2-Year Subscription | $6.99 | one-time |
| 3-Year Subscription | $8.99 | one-time |


## Frequently asked questions

### Is OpenSourceInitiative free?

OpenSourceInitiative is free to download, with no in-app purchases.

### Is BlueSpy free?

BlueSpy is free to download, with in-app purchases available.

### Do OpenSourceInitiative or BlueSpy have ads?

Neither OpenSourceInitiative nor BlueSpy shows ads.

### Which is updated more often, OpenSourceInitiative or BlueSpy?

OpenSourceInitiative ships an update monthly, and BlueSpy fortnightly. Most recently, OpenSourceInitiative was updated on September 10, 2026 and BlueSpy on September 8, 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.*