Speedy Note vs Stringcalculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Speedy Note
Learn to read the Alto Clef with an interactive and competitive music game. Master six levels at your own pace, choosing difficulty and notation style. MIDI compatible with CD quality piano sounds.
- Interactive Alto Clef learning
- Competitive game environment
- Adjustable difficulty levels
- MIDI compatibility
- Alphabetic and Solfege notation
- CD quality piano sounds
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Speedy Note: Alto Clef teaches you to read the Alto Clef (C Clef) in an interactive, fun and competitive game environment. Great for beginners to advanced, children or adults. Master the six levels and you have mastered the Alto Clef! Compete with yourself or with your friends. Speedy Note tracks your scores and lets you know how you are doing. Speedy Note also allows you to learn at your own pace – you decide the level of difficulty and when to advance to more difficult levels. Speedy Note: Alto Clef is very intuitive. It only takes a few moments to learn how to use (even for young children). FEATURES: Speedy Note is MIDI compatible. You can use your midi instrument to play the game and learn the notes. (Requires a MIDI interface connected through the lightening port or a Bluetooth LE MIDI device.) CD quality piano sounds. Can be used silently allowing you to practice learning notes anywhere, any time. (No need to turn down or off your device’s volume.) You can learn both alphabetic notation (A, B, C, D, E, F, G) and/or Solfege notation (Do, Re, Mi, Fa, Sol, La, Si). Created by Bienelle Music
Stringcalculator
Calculate string properties for various instruments. Determine diameter, tension, and tone based on material, frequency, and scale length. Supports multiple units of measurement.
- Calculate string diameter, tension, and tone
- Supports gut, nylgut, carbon, Tynex, and nylon strings
- Set custom frequencies
- Calculate in cm, mm, or inches
- Adjustable scale length
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A string calculator to calculate single strings for historical (or modern) stringed instruments. Calculates strings from gut, nylgut, carbon (PVF), Tynex and nylon. Diameter, tension, tone and scale can be calculated. You can set any frequency instead of the chamber tone a'. Calculates in cm, mm or inch.
Screenshots
Verdict
The clearest difference is review sentiment: Stringcalculator at 100% against Speedy Note's 44%. Speedy Note's advantage is price ($1.99 vs $2.99) and iOS requirement (14.5 vs 17.6). On update cadence, 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
Speedy Note costs $1.99 and Stringcalculator $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Speedy Note ships an update every 15 months, Stringcalculator every 16 months. The most recent releases landed on October 25, 2026 and October 15, 2026 respectively.
| Parameter | Speedy Note | Stringcalculator |
|---|---|---|
| Price | $1.99 — better | $2.99 |
| Rating | 2.8 (8 ratings) — better | — |
| Positive reviews | 44.4% of reviews | 100.0% of reviews — better |
| Number of ratings | 8 — better | — |
| Update frequency | Every 15 months — better | Every 16 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 14.5 — better | 17.6 |
| Further details — not scored | ||
| Size | 23 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Brian Hughes | Martin Uhlig |
Customer experience
Speedy Note
Stringcalculator
In-app purchases
Speedy Note
No in-app purchases
Stringcalculator
No in-app purchases









