# SampleTank CS vs Sunday Keys

The clearest difference is rating: Sunday Keys at 4.6 against SampleTank CS's 3.1. Sunday Keys also leads on review sentiment (71% vs 29%) and in-app purchases (none vs 15). SampleTank CS's advantage is iOS requirement (13.0 vs 15.0). On price, ratings volume, ads and monetization model there is nothing between them.

Both are free to download. SampleTank CS sells 15 one-off in-app purchases. Sunday Keys asks for nothing beyond the download.

Sunday Keys holds the better App Store score, 4.6 against 3.1. Both are backed by a comparable volume of ratings — 144 and 115 respectively. Written reviews point the same way: 29% of SampleTank CS's written reviews are positive against 71% of Sunday Keys's.

SampleTank CS ships an update every 2 months, Sunday Keys every 3 weeks. The most recent releases landed on October 17, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | SampleTank CS | Sunday Keys |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.1 (144 ratings)](https://appshunter.io/ios/app/sampletank-cs/id464775965/reviews) | **[4.6 (115 ratings)](https://appshunter.io/ios/app/sunday-keys/id1615360535/reviews)** |
| Number of ratings | **144** | 115 |
| Positive reviews | 28.9% of reviews | **70.9% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 1.5 GB | 201 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [IK Multimedia US, LLC](https://appshunter.io/developer/323694278) | [Loop Community](https://appshunter.io/developer/664688178) |

## What reviewers say

### SampleTank CS

[App page](https://appshunter.io/ios/app/sampletank-cs/id464775965)

This professional mobile sound and groove workstation brings desktop-level virtual instrument power to your iPhone and iPad. It offers a vast array of world-class instruments and patterns for live performance and composition, with expandable sound libraries available for purchase.

**Highlights:** 23 free instruments in 16 categories, 8-part multitimbral sound module, Expandable sound library with 2300+ instruments, Over 1,200 melodic and rhythmic patterns, 8-track MIDI recorder with audio export, Intuitive interface and new sound engine, Song and Live environments

**In-app purchases (15)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Organ | $4.99 | one-time |
| Strings | $4.99 | one-time |
| Brass | $4.99 | one-time |
| Synth Leads | $4.99 | one-time |
| Synth Pads | $4.99 | one-time |
| Woodwinds | $4.99 | one-time |
| Acoustic Drums | $4.99 | one-time |
| Electric Piano | $7.99 | one-time |
| The Grid | $14.99 | one-time |
| Upgrade to SampleTank | $24.99 | one-time |
| Miroslav Philharmonik - Mobile Edition | $24.99 | one-time |
| Sample Moog - Mobile Edition | $24.99 | one-time |
| Sonik Synth - Mobile Edition | $24.99 | one-time |
| All Sounds | $64.99 | one-time |
| SampleTank PRO - All Sounds Pack | $64.99 | one-time |

**What reviewers like**

- 🚀 Great sound quality
- 👍 Easy to use
- 💡 Excellent for live performances

**What reviewers complain about**

- 🐛 Frequent crashes
- 🔒 Issues with in-app purchases and restoring purchases
- 🔋 High memory usage
- 👎 Lack of updates and support

**Reported bugs**

- Incompatible with latest iOS versions
- MIDI issues and lack of device detection
- Purchased content not properly restored

**Requested features**

- Add AU/AUv3 support for better DAW integration
- Improve MIDI functionality and mapping
- Allow importing custom samples
- Enhance performance controls (e.g., pitch bend, modulation)


### Sunday Keys

[App page](https://appshunter.io/ios/app/sunday-keys/id1615360535)

This app provides a comprehensive worship keyboard rig for iPad, allowing users to access and organize their sounds, patches, and setlists. It supports AUv3 instrument plugins and offers powerful audio and MIDI effects for live performance and service preparation.

**Highlights:** AUv3 instrument plugin hosting, Organized sound, patch, and setlist library, Touch-optimized interface, Powerful audio and MIDI effects, Tonic Pad Player for ambient pads, MIDI hardware and Bluetooth support

**In-app purchases:** none

**What reviewers like**

- ✨ High-quality sounds
- 👍 User-friendly interface
- 💡 Innovative AI patch builder
- 🤝 Helpful customer support
- 🚀 Seamless transitions

**What reviewers complain about**

- 💸 High price point
- ⏳ Annual license renewal
- 🤔 Complex registration process
- 🚫 Limited editing of song patches
- ⚠️ Inconsistent drone functionality

**Reported bugs**

- App crashing on iPad
- Drone not working reliably
- Core audio error on iPad
- Sound library installation issues
- App not running on older macOS versions

**Requested features**

- AUv3 plugin support for Logic Pro and GarageBand iOS
- Sampler/looper functionality
- Loop player
- MIDI monitor on main screen displaying chords
- Ability to use third-party plugins


## Frequently asked questions

### Is SampleTank CS free?

SampleTank CS is free to download, with in-app purchases available.

### Is Sunday Keys free?

Sunday Keys is free to download, with no in-app purchases.

### Which has better reviews, SampleTank CS or Sunday Keys?

Sunday Keys is rated higher. SampleTank CS averages 3.1 out of 5 from 144 ratings, while Sunday Keys averages 4.6 from 115 ratings.

### Do SampleTank CS or Sunday Keys have ads?

Neither SampleTank CS nor Sunday Keys shows ads.

### Which is updated more often, SampleTank CS or Sunday Keys?

SampleTank CS ships an update every 2 months, and Sunday Keys every 3 weeks. Most recently, SampleTank CS was updated on October 17, 2026 and Sunday Keys on October 9, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*