Comparison

iGrand Piano CS for iPad vs String Theory

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

Head to head
About

iGrand Piano CS for iPad

Experience concert-quality grand and upright pianos with ultra-realistic sound and built-in recording. Edit and save custom variations, connect external keyboards, and compose anywhere. Expand your library with additional instrument packs.

Highlights
  • Ultra-realistic grand and upright pianos
  • High-definition stereo samples
  • Built-in MIDI recorder with overdubbing
  • Instrument editor with real-time controls
  • Audiobus and Inter-App Audio support
  • Expansion packs for more instruments
Read full description

THE CONCERT QUALITY PIANO APP UPDATED FOR AUDIOBUS AND INTER-APP AUDIO WITH NEW EXPANSION PACK, EQ AND USER VARIATIONS The ultimate piano instrument provides you with an extraordinary collection of ultra-realistic acoustic pianos along with built-in recording! Use the iRig KEYS and KEYS PRO portable keyboards (www.irigkeys.com) or the iRig MIDI 2 interface (www.irigmidi.com) to connect your external keyboard, and you're ready to compose, rehearse, perform and record with the very best instruments for your mobile world. You can now edit your sound even further with the new 3-band EQ and save up to 4 user variations per instrument. iGrand Piano puts the world's finest pianos right at your fingertips with studio-grade quality that stands up to the most powerful virtual instruments available on a computer. With high-definition stereo samples across multiple velocities, iGrand Piano brings you the most playable, expressive and beautiful sounding piano instruments available on a mobile device that you can play anytime and everywhere. iGrand Piano FREE gives you 2 world-class pianos (including one by registering) along with a capable recorder and metronome. The instruments in the FREE version are limited to the 4 octaves centered on middle C (C1 to C5). Purchase the “Upgrade to Full Version” option to get the full 88-note range and give your FREE app the same additional 6 instruments as the paid version. Add the Piano Expansion 1 via in-app purchase to extend your piano library with 9 additional high-quality instruments or the Piano Expansion 2 with 22 all-new instruments including the Hollywood Piano, piano + strings layers and harpsichords. Record your rehearsals or performances as MIDI with both overdubbing and punch-in capability, then export your track as audio via E-mail or File Sharing or Audio Copy to other iOS apps. With the built-in MIDI Recorder, you can change the tempo of your piece or even choose to use a different piano AFTER you've completed your performance! For composers of any level, the MIDI Recorder lets you capture and develop ideas anywhere your mobile life takes you. iGrand Piano also includes some professional MIDI performances to help you audition the various piano instruments or just inspire your own creative muse! The easy-to-use instrument editor puts real-time controls on the panel just above the keys to let you adjust the amount of ambience, the position of the lid (open, closed or anything in between), brightness, envelope release, key transposition and tuning. All edit knobs can be assigned to your choice of MIDI controllers for external fine-crafting of your instrument's sonic details. Virtual MIDI and MIDI Program Change are also supported along with Audiobus and Inter-App Audio for iOS 8. iGrand Piano features: - World-class, multi-velocity stereo grand and upright piano instruments (upright available by registering) - “Upgrade to Full Version” with 6 more pianos and full 88-note range instantly available via in-app purchase - Expandable libraries offer 31 additional instruments instantly available via in-app purchase - Intuitive instrument edit controls including ambience, lid, brightness, release, tuning and transpose - Included MIDI Recorder with overdub and punch-in capability - Export performances via E-mail, File Sharing and Audio Copy - Large visual metronome with variable click volume and adjustable tempo - Easy-to-use instrument editor with transpose to adjust ambience, tonality and tuning with 4 user variations per instrument - Audiobus and Inter-App Audio support for iOS 8 - Virtual MIDI and MIDI Program Change support - Low-latency for real-time playing - More than 64-voice polyphony on the latest devices - Designed in concert with iRig KEYS and iRig KEYS PRO portable MIDI keyboards and iRig MIDI 2 interface - Full version also available For more information: www.ikmultimedia.com/igrand www.irigkeys.com www.irigmidi.com

About

String Theory

This app helps guitarists explore scales and chords with an interactive fretboard. It allows users to compare scales, test custom tunings, and record riff ideas. The tool is designed for practicing improvisation, learning theory, and saving musical inspiration.

Highlights
  • Interactive guitar fretboard with scale mapping
  • Scale and Chord Finder tools
  • Custom tunings with octave control
  • Riff recording and vault organization
  • Left-handed mode
  • Scale comparison overlay
Features
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String Theory is a focused guitar tool for exploring scales, visualizing the fretboard, matching chords, and capturing riff ideas without clutter. Build better fretboard awareness with an interactive scales map, compare two scales at once, test custom tunings, and find compatible chords in seconds. When inspiration hits, record the idea and save it to your riff vault with notes and playback. Features: • Interactive guitar fretboard with scale mapping • Major, harmonic minor, melodic minor, and pentatonic scale families • Scale Finder and Chord Finder tools • Chords-to-scales matching • Add a second scale overlay for comparison • Custom tunings with per-string octave control • Left-handed fretboard mode • Fullscreen fretboard view • Riff recording, playback, rename, share, and vault organization • Light/dark mode, 3 color themes, haptics, and a polished liquid glass interface Whether you’re practicing improvisation, learning theory, or saving new ideas, String Theory keeps the essential guitar tools in one fast, modern app.

Screenshots

String Theory4 screens

Verdict

The call

The clearest difference is review sentiment: String Theory at 100% against iGrand Piano CS for iPad's 44%. String Theory also leads on in-app purchases (none vs 3). iGrand Piano CS for iPad's advantage is price (Free vs $1.99) and iOS requirement (13.0 vs 26.0). On ads and device support 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

CostPrice · In-app purchases · Ads · Monetization

iGrand Piano CS for iPad is free to download; String Theory costs $1.99 up front. iGrand Piano CS for iPad sells 3 one-off in-app purchases. String Theory asks for nothing beyond the download.

Scorecard5 real differences · 5 level
iGrand Piano CS for iPad versus String Theory: the parameters behind the verdict, then further details
ParameteriGrand Piano CS for iPadString Theory
PriceFree — better$1.99
Rating—5.0 (1 ratings) — better
Positive reviews43.5% of reviews100.0% of reviews — better
Number of ratings—1 — better
Update frequencyEvery 5 months—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPadiPhone, iPad — better
Requires iOS13.0 — better26.0
Further details — not scored
Size643 MB10 MB
Age rating4+4+
DeveloperIK Multimedia US, LLCDANIEL NIKOLAS SZTURM

Customer experience

iGrand Piano CS for iPad

All ratings36 ratings
Positive52.8%
Neutral8.3%
Negative38.9%
Written reviews170 reviews
Positive43.5%
Neutral13.5%
Negative42.9%

String Theory

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

iGrand Piano CS for iPad

One-time3
  • Piano Expansion Pack$14.99
  • Piano Expansion Pack 2$14.99
  • Upgrade to Full Version$19.99
None

String Theory

No in-app purchases

Questions

Is iGrand Piano CS for iPad free?
iGrand Piano CS for iPad is free to download, with in-app purchases available.
Is String Theory free?
String Theory costs $1.99, with no in-app purchases.
Do iGrand Piano CS for iPad or String Theory have ads?
Neither iGrand Piano CS for iPad nor String Theory shows ads.

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