Chord Calculus vs Gritopia
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Chord Calculus
This app helps musicians visualize and understand chords, scales, and progressions for various fretted instruments. It allows customization of instruments, tunings, and capos, and includes a tuner. Play chords, arpeggios, and scales.
- Chord calculator with fingering display
- Chord identifier for unknown fingerings
- Scale display and playback
- Chord progression player
- Custom instrument and tuning creation
- Capo support
- Instrument tuner
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ChordCalculus is a tool for players of fretted instruments. ChordCalculus will allow the user to choose from a large number of pre-defined fretted instruments in a variety of tunings. Additionally, the user can define new instruments and/or tunings. Single or multiple capos can be added. The user then picks from one of four operating modes using the segmented selectors at the center top of the display: * (C)hord Calculator: Show all fingerings for chords for a given instrument/tuning, filters, capos, and fret span. * Chord (I)dentifer: For a given instrument/tuning and fingering, display all possible names for a chord * (S)cale Display: For an instrument/tuning, key and scale type, display the scale, and play a two-octave scale * (P)rogression Player: Derived from chord mode, display fingerings for a chord progression. Also plays chords in sequence. In all cases, the chords can be played as a chord or arpeggio and the scale played back. As of version 2.0, an instrument tuner is accessed by long touching the tuning button. See https://www.youtube.com/watch?v=Ty5eI_DiXhk&t=20s for all the features
Gritopia
This audio effect processor adds texture, weight, and attitude to sounds by layering harmonic coloration, instability, and controlled degradation. It creates rich, expressive character for instruments and vocals, from subtle warmth to aggressive digital grit.
- Layered saturation and harmonic coloration
- Digital erosion and evolving texture
- Dynamic instability and motion
- Subtle enhancement to aggressive destruction
- Controls for texture, tone, fuzz, erode, drift, jitter, glue, and mix
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Gritopia is a character processor built for adding texture, weight, and attitude to any sound. Rather than simply clipping or saturating, Gritopia layers harmonic coloration, evolving instability, and controlled degradation to create rich, expressive character. From subtle warmth to heavily damaged digital grit, every control interacts to produce movement rather than static distortion. The result is an effect that feels alive, constantly shifting as it reshapes your sound. Perfect for drums, bass, synths, guitars, vocals, and creative sound design. Features • Layered saturation and harmonic coloration • Digital erosion and evolving texture • Dynamic instability and motion • Designed for both subtle enhancement and aggressive destruction Controls Grit – Controls the overall amount of texture and saturation. Tone – Shapes the tonal balance of the processed signal. Fuzz – Adds thick harmonic fuzz and aggressive character. Erode – Introduces digital wear, degradation, and broken texture. Drift – Creates slow, evolving movement. Jitter – Adds fast instability and unpredictable variation. Glue – Blends the processed layers into a cohesive sound. Mix – Balances processed and dry signals.
Screenshots
Verdict
The clearest difference is rating: Gritopia at 5.0 against Chord Calculus's 3.9. Gritopia also leads on device support (4 vs 2) and iOS requirement (12.0 vs 16.0). Chord Calculus's advantage is ratings volume (8 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
Chord Calculus costs $2.99 and Gritopia $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Gritopia holds the better App Store score, 5.0 against 3.9. That said, the two scores are not equally well evidenced: Chord Calculus has 8 ratings behind it against 1, so its average is the more settled of the two.
| Parameter | Chord Calculus | Gritopia |
|---|---|---|
| Price | $2.99 | $2.99 |
| Rating | 3.9 (8 ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 80.0% of reviews | — |
| Number of ratings | 8 — better | 1 |
| Update frequency | Fortnightly | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 16.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 64 MB | 23 MB |
| Age rating | 4+ | 4+ |
| Developer | Steven Pollack | Jeremy Phillips |
Customer experience
Chord Calculus
Gritopia
In-app purchases
Chord Calculus
No in-app purchases
Gritopia
No in-app purchases









