SurSadhak vs SUS4 Capo Calc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SurSadhak
This app provides accompaniment for classical singers, featuring adjustable tempo tabla and tanpura loops. It allows for fine-tuning pitch and tempo for both instruments, with background playback support.
- Adjustable tempo tabla loops
- Selectable taals
- Adjustable tempo tanpura loops
- Pitch variation tuning
- Background playback
- Multiple taals supported
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SurSadhak is the complete Indian classical music practice companion. Play realistic Tabla, Tanpura, Harmonium, Swar Mandal, and Manjira — all in one app. Practice 100+ raags, compose multi-section songs, scan Bhatkhande notation with AI, and record studio-quality mixes. HARMONIUM Play a 36-key keyboard spanning 3 octaves with authentic sound. Select from 100+ raags and practice interactively — auto-play aaroh, avroh, pakad, and alaap with note-by-note visual guidance. Enable raag-guided key highlighting and play smooth meend glides between notes. RAAG PRACTICE Explore 100+ raags with complete definitions: aaroh (ascending scale), avroh (descending scale), pakad (signature phrase), and alaap (exposition). Follow along with Bhatkhande swar notation and a synchronized Tanpura drone. SONG COMPOSITION Build multi-section songs with independent instrument control per section. Choose Tabla, Tanpura, Sur Peti, Swar Mandal, or Manjira for each section. Add custom audio tracks, Bhatkhande notation, and lyrics. Share your compositions with the SurSadhak community. TABLA — 49 TAALS, 100+ VARIATIONS Control tempo (25–300 BPM), volume, pitch, and scale. Every rhythm cycle covered: Metronome mode 4 beats: Pauri 5 beats: Ardha Jhaptaal, Jhampak, Yamuna, Soolfakhta 5.5 beats: Shashanka 6 beats: Dadra, Dakshinatya Rupak, Sasthi 6.5 beats: Ardha Jai Taal 7 beats: Pashto, Rupak, Teevra, Moghuli, Saatva 7.5 beats: Neel Taal 8 beats: Keherva (incl. Ghazal, Qawwali, Bhajani), Jat Taal 8.5 beats: Ardha Shikhar, Ashta Jhaptaal 9 beats: Matta Taal, Shiva Taal 9.5 beats: Kalawati, Sunand Taal 10 beats: Jhaptaal, Sadra, Soolfaak, Sool Taal 10.5 beats: Sardha Rupak 11 beats: Rudra Taal, Chartal-ki-Sawari, Bhaanmati 12 beats: Chautaal, Ektaal 13 beats: Jai Taal 14 beats: Jhoomra, Farodust, Ada Chautaala, Deepchandi, Dhamaar 15 beats: Pancham Sawari 16 beats: TeenTaal, Addha/Sitarkhani, Tilwada, Gajamukha, Chachar 17 beats: Shikhar Taal 19 beats: Inder Taal TANPURA & MORE INSTRUMENTS Tanpura, adjustable scale and volume. Sur Peti, Swar Mandal, and Manjira for complete accompaniment. RECORDING STUDIO Record with a visual waveform editor — zoom, scroll, and edit with beat markers overlaid. Selective instrument mix lets you choose exactly which instruments to capture. Export as high-quality AAC audio. KEY FEATURES • Practice anytime, even offline • Mic capture for voice and external instruments • Bhatkhande notation editor with Devanagari swar display • SurSadhak Songs Community — share and discover compositions • SurSadhak Premium — unlock exclusive taals, unlimited recording, and a premium badge Join SurSadhak and elevate your Indian classical music journey! Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
SUS4 Capo Calc
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Pick the key you want to sing in and see which fret the capo goes on and which shapes to play. It also works the other way: type the chords and it finds the key. Fully on-device: no cloud, no account. Choose your tuning, choose the target key, and Capo Calc lists the options with the fret and the shapes, with open-friendly shapes first if you want them. Change the tuning to drop D, DADGAD or open G and the answer changes with it. • Capo position and chord shapes for any target key • Find Key: type a progression and get its key • Standard, dropped, open and modal tunings, and 7 and 8-string guitars • Fretboard diagrams for each suggestion For singers moving songs into their range, worship guitarists following a key sheet, and guitarists playing with a second guitar. Everyone gets two calculations a day. Pro, or SUS4 All-Access across the whole range, removes the daily limit. Made in the UK by working musicians. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is device support: SUS4 Capo Calc at 4 against SurSadhak's 2. On price, update cadence, ads and in-app purchases 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. SurSadhak sells 3 in-app purchases, starting at $0.99 per month and SUS4 Capo Calc sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.
Both ship on a similar rhythm, roughly fortnightly. Both last shipped on October 24, 2026.
| Parameter | SurSadhak | SUS4 Capo Calc |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (3 ratings) — better | — |
| Positive reviews | 3.1% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Fortnightly | Fortnightly |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad | iPhone, iPad, Mac, Apple Watch — better |
| Requires iOS | 16.0 | 16.0 |
| Further details — not scored | ||
| Size | 135 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Asterbyte Software Systems Private Limited | ThePaulSmith |
In-app purchases
SurSadhak
- SurSadhak Monthly Premium$0.991 Month
- Monthly 99 INR7 Days trial$0.991 Month
- Premium Yearly Subscription14 Days trial$7.991 Year
SUS4 Capo Calc
- SUS4 Capo Calc Pro Monthly7 Days trial$0.991 Month
- SUS4 All-Access7 Days trial$4.991 Month
- SUS4 Capo Calc Lifetime$59.99
Questions
Is SurSadhak free?
Is SUS4 Capo Calc free?
Do SurSadhak or SUS4 Capo Calc have ads?
Which is updated more often, SurSadhak or SUS4 Capo Calc?
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