# Deep Field vs MTI RehearScore

The clearest difference is review sentiment: Deep Field at 78% against MTI RehearScore's 31%. Deep Field also leads on rating (4.3 vs 2.8). MTI RehearScore's advantage is ratings volume (195 vs 15). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Deep Field holds the better App Store score, 4.3 against 2.8. That said, the two scores are not equally well evidenced: MTI RehearScore has 195 ratings behind it against 15, so its average is the more settled of the two. Written reviews point the same way: 78% of Deep Field's written reviews are positive against 31% of MTI RehearScore's.

Deep Field ships an update every 4 months, MTI RehearScore every 3 months. The most recent releases landed on September 17, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Deep Field | MTI RehearScore |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (15 ratings)](https://appshunter.io/ios/app/deep-field/id970046487/reviews)** | [2.8 (195 ratings)](https://appshunter.io/ios/app/mti-rehearscore/id1348923237/reviews) |
| Number of ratings | 15 | **195** |
| Positive reviews | **77.8% of reviews** | 31.2% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 months** |
| Monetization | Free | Free |
| Size | 63 MB | 13 MB |
| Requires iOS | 13.4 | **12.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Music Productions, Ltd.](https://appshunter.io/developer/970046486) | [Music Theatre International](https://appshunter.io/developer/470972351) |

## What reviewers say

### Deep Field

[App page](https://appshunter.io/ios/app/deep-field/id970046487)

Experience a musical performance inspired by space exploration and the Hubble Telescope. This app complements a live show and offers further details about its accompanying film.

**Highlights:** Inspired by Hubble Space Telescope, Live performance companion, Information on accompanying film, Created by Eric Whitacre

**In-app purchases:** none


### MTI RehearScore

[App page](https://appshunter.io/ios/app/mti-rehearscore/id1348923237)

This app provides a virtual accompanist for musicians and theater performers. It offers full musical scores with adjustable tempos, looping capabilities, and the ability to isolate or remove individual vocal tracks. Users can also transpose songs, jump to specific measures, and add cuts or vamps.

**Highlights:** Virtual accompanist for rehearsals, Adjustable tempo and looping, Isolate/remove vocal tracks, Transpose songs to different keys, Jump to any measure, Add cuts and vamps, Save and distribute changes

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🎵 Ability to isolate individual vocal parts for practice
- 🎯 Customizable accompaniment mixing and muting options
- 📍 Measure number navigation for precise song positioning
- 🎭 Access to musical theater tracks not available on streaming platforms
- ⏱️ Adjustable tempo control for practice flexibility

**What reviewers complain about**

- 🔇 Audio requires phone ringer to be ON (major usability issue)
- 🐛 Frequent audio/sound failures and glitches
- 📵 Music stops when phone screen locks or goes to sleep
- ❌ No background audio playback capability
- 🎹 Poor MIDI instrument quality and limited instrument variety

**Reported bugs**

- Audio doesn't work on specific iOS versions (iOS 15.4, iOS 16, iPhone 7)
- Sound fails intermittently despite correct volume settings
- App crashes and closes unexpectedly
- Music disappears mid-playback requiring restart
- Practice loop skips random measures

**Requested features**

- Display full lyrics on screen (karaoke-style)
- Allow background audio playback while using other apps
- Prevent device from sleeping during playback
- Add diverse MIDI instrument options for vocal parts
- Support for landscape mode and iPad multitasking


## Frequently asked questions

### Is Deep Field free?

Deep Field is free to download, with no in-app purchases.

### Is MTI RehearScore free?

MTI RehearScore is free to download, with no in-app purchases.

### Which has better reviews, Deep Field or MTI RehearScore?

Deep Field is rated higher. Deep Field averages 4.3 out of 5 from 15 ratings, while MTI RehearScore averages 2.8 from 195 ratings.

### Do Deep Field or MTI RehearScore have ads?

Neither Deep Field nor MTI RehearScore shows ads.

### Which is updated more often, Deep Field or MTI RehearScore?

Deep Field ships an update every 4 months, and MTI RehearScore every 3 months. Most recently, Deep Field was updated on September 17, 2026 and MTI RehearScore on September 21, 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.*