Comparison

Tāl Chakra vs Bent Spool

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

Head to head
About

Tāl Chakra

Features
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Your guru draws a circle on the board, marks the beats, claps the vibhags, and suddenly the taal makes sense. Tāl Chakra puts that moment in your pocket. This is not a tabla machine. It is an interactive guide to the rhythmic architecture of Hindustani classical music. Each taal is drawn as a circle (the way musicians have understood rhythm for centuries) and brought to life with real tabla recordings, animated playback, and tools that let you take the structure apart and put it back together. 16 TĀLS, ONE CIRCLE From the 6-beat Dādrā to the 16-beat Tīntāl and the rare 14-beat Ārā Chautāl, each taal plays with studio-recorded tabla samples across three dynamic layers. Watch the bead travel the cycle, hear each bol as it lands, and build an intuitive sense of the rhythm that no metronome click can give you. X-RAY MODE Peel back the layers of any taal. Concentric rings reveal vibhāg groupings, tālī and khālī accents, and mātrā positions side by side. See instantly why Rūpak feels nothing like Jhaptāl, even though they are only one beat apart. Compare two tāls with the same beat count by crossfading between them. LAYKĀRĪ LAB Practice subdivisions against a running cycle. Choose from nine ratios: from barābar (1:1) up through sātgun (7:1), plus the fractional cross-rhythms kuāḍ and āḍ. Colour-coded chips group the ratios into three families. Tap Auto and the app cycles through whichever family your current ratio belongs to, advancing one step per full taal cycle, the way your guru would push your speed in a lesson. Watch the subdivision dots appear between the beats and hear a second layer play against the taal. TIHĀĪ BUILDER Compose three-phrase cadences that resolve on sam. Set the starting beat, phrase length, and gap, then watch three coloured arcs draw themselves around the circle in real time. Green means it lands. Red means it doesn't. Tap play to hear your tihāī against the running taal, and feel the resolution when the third phrase hits sam. Includes 48 classic preset patterns across the tāl library, tailored to each rhythmic cycle. TEMPO LAB AND PERFORMANCE MAP Explore the relationship between tempo and density across five laya zones, from Ati Vilambit to Ati Drut. Then zoom out with the Performance Map to see how rhythm lives inside a full rāg performance: from the unmeasured ālāp, through the gathering intensity of the gat sections, to the climactic final cadence. BUILT FOR SERIOUS PRACTICE A tanpura drone in all 12 keys gives your practice a tonal anchor. Haptic pulses mark sam or every beat, so you can close your eyes and still feel the cycle. A session counter tracks completed cycles and elapsed time. A glossary of 50+ terms with Devanāgarī script helps you learn the vocabulary alongside the music. Designed for iPhone, iPad, and Mac.

About

Bent Spool

This music app offers creative audio effects for live performance or use within other music apps. Explore rhythmic tremolo, pitched repeats, and looping fragments of your audio. It includes built-in overdrive and tape effects for unique sound shaping.

Highlights
  • Rhythmic tremolo effects
  • Pitched repeat sequences
  • Overlapping audio loops
  • Built-in overdrive and fuzz
  • Vintage tape effects
  • Standalone and AUv3 host support
Features
Read full description

Bent Spool is a creative effect that can transform simple musical parts into unexpected rhythms and melodies, played live or as an effect in your favorite host app. Shape a tremolo pulse, turn a note into a run of pitched repeats, or build a moving layer from fragments of what you just played. Drive the input with built-in overdrive or fuzz, add a core effect, then finally layer in vintage analog tape effects. THREE MODES TREM: a pulsing volume effect, from a rounded sine through triangle and sawtooth to a hard square gate. Syncs to your host's tempo or runs free. REPEAT: up to 64 pitched copies with their own decay and feedback, across five pitch stations from two octaves down to two octaves up. LOOPS: up to six overlapping fragments of your recent audio, spread across pitch, direction, read position and the stereo field. CHARACTER CHAOS adds movement that suits each mode: octave jumps in REPEAT, held or stalled pulses in TREM, wandering reversals and pitch drift in LOOPS. WEAR adds tape wear, magnetic saturation and digital crush after the active mode. At the input, OD is a softer clip; FUZZ is a harder distortion that sputters as it decays. PRESETS 48 factory presets: 10 TREM, 15 REPEAT, 15 LOOPS and an 8-preset Fuzz Tremolo pack. Unlock to save your own. FREE TO TRY TREM plays in full on the OD voice with ten presets. No time limit, no interruptions. A single $9.99 in-app purchase unlocks REPEAT, LOOPS, FUZZ, the rest of the presets and preset saving. No subscription. Runs as a standalone app or as an AUv3 effect in AUM, Loopy Pro and other AUv3 hosts, on iPhone and iPad.

Screenshots

Tāl Chakra4 screens
Bent Spool4 screens

Verdict

The call

The clearest difference is price: Bent Spool at Free against Tāl Chakra's $11.99. Bent Spool also leads on update cadence (daily vs weekly). Tāl Chakra's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement 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

Bent Spool is free to download; Tāl Chakra costs $11.99 up front. Bent Spool sells 1 one-off in-app purchase. Tāl Chakra asks for nothing beyond the download.

UpkeepUpdate frequency

Tāl Chakra ships an update weekly, Bent Spool daily. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

Scorecard3 real differences · 6 level
Tāl Chakra versus Bent Spool: the parameters behind the verdict, then further details
ParameterTāl ChakraBent Spool
Price$11.99Free — better
Rating—5.0 (5 ratings) — better
Number of ratings—5 — better
Update frequencyWeeklyDaily — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free with in-app purchases
DevicesiPhone, iPad, Mac — betteriPhone, iPad
Requires iOS18.017.0 — better
Further details — not scored
Size8 MB23 MB
Age rating4+4+
DeveloperTheMMPlastic Factory LLC

In-app purchases

None

Tāl Chakra

No in-app purchases

1 purchases

Bent Spool

One-time1
  • Bent Spool Unlock$9.99

Questions

Is Tāl Chakra free?
Tāl Chakra costs $11.99, with no in-app purchases.
Is Bent Spool free?
Bent Spool is free to download, with in-app purchases available.
Do Tāl Chakra or Bent Spool have ads?
Neither Tāl Chakra nor Bent Spool shows ads.
Which is updated more often, Tāl Chakra or Bent Spool?
Tāl Chakra ships an update weekly, and Bent Spool daily. Most recently, Tāl Chakra was updated on November 5, 2026 and Bent Spool on October 31, 2026.

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