Harp Strings vs Speed Master
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Harp Strings
Adjust audio output for optimal speaker and room acoustics. Offers advanced tone controls for fine-tuning, a mute switch, and the ability to edit amplifier names. Tailor your sound experience with precision.
- Tone controls for speaker and room matching
- Advanced tone tuning
- Mute switch
- Amplifier name editor
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This app provides tone controls to adjust the H1 for an optimum match with your speakers and the room. It also provides advanced tone controls to further tune the H1. Other features include a mute switch and an amplifier name editor.
Speed Master
Quickly test your internet speed in 30 seconds, supporting various network types including WiFi and cellular. Analyze network performance with detailed comparisons and ping tests. Identify and block unknown devices on your local network.
- 30-second network speed tests
- WiFi and cellular speed measurement
- LAN IP scanner
- Ping test for gaming and streaming
- Unknown device detection
- Historical test reporting
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- It only takes 30 seconds to quickly and accurately obtain the network speed test results, and easily avoid the network peak - It supports WiFi speed measurement, and 2G / 3G / 4G / 5G speed measurement - A variety of theme, single network and multi network data comparison, a clear and comprehensive understanding of the network situation - A professional Ping test network, providing escort for seckill / live broadcast / game playing, etc - Scan other devices in the LAN to block unknown devices - Track past tests with reporting If you have any questions and suggestions, please feel free to give us feedback whithin the app. UserAgreement：https://speedmaster.web.app/UserAgreement.html PrivacyPolicy：https://speedmaster.web.app/PrivacyPolicy.html
Screenshots
Verdict
The clearest difference is update cadence: Harp Strings at every 8 days against Speed Master's every 3 months. Harp Strings also leads on rating (5.0 vs 4.6) and iOS requirement (9.0 vs 13.0). Speed Master's advantage is ratings volume (14 vs 1). On price, ads, in-app purchases and monetization model 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.
Harp Strings holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Speed Master has 14 ratings behind it against 1, so its average is the more settled of the two.
Harp Strings ships an update every 8 days, Speed Master every 3 months. The most recent releases landed on October 4, 2026 and October 3, 2026 respectively.
| Parameter | Harp Strings | Speed Master |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.6 (14 ratings) |
| Number of ratings | 1 | 14 — better |
| Update frequency | Every 8 days — better | Every 3 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 9.0 — better | 13.0 |
| Further details — not scored | ||
| Size | 34 MB | 25 MB |
| Age rating | 4+ | 4+ |
| Developer | Bitwise Systems Inc | 惠桃 曾 |
Customer experience
Harp Strings
Speed Master
In-app purchases
Harp Strings
No in-app purchases
Speed Master
No in-app purchases
Questions
Is Harp Strings free?
Is Speed Master free?
Which has better reviews, Harp Strings or Speed Master?
Do Harp Strings or Speed Master have ads?
Which is updated more often, Harp Strings or Speed Master?
Other comparisons
