# In Progress vs SynthStamp

The clearest difference is review sentiment: In Progress at 100% against SynthStamp's 44%. In Progress also leads on rating (5.0 vs 4.4) and price ($1.99 vs $4.99). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

In Progress costs $1.99 and SynthStamp $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

In Progress holds the better App Store score, 5.0 against 4.4. Both are backed by a comparable volume of ratings — 9 and 12 respectively. Written reviews point the same way: 100% of In Progress's written reviews are positive against 44% of SynthStamp's.

In Progress ships an update every 5 days, SynthStamp weekly. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | In Progress | SynthStamp |
| --- | --- | --- |
| Price | **$1.99** | $4.99 |
| Rating | **[5.0 (9 ratings)](https://appshunter.io/ios/app/in-progress-local-music/id6760368318/reviews)** | [4.4 (12 ratings)](https://appshunter.io/ios/app/synthstamp/id6760490718/reviews) |
| Number of ratings | 9 | **12** |
| Positive reviews | **100.0% of reviews** | 43.8% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Weekly |
| Monetization | Paid | Paid |
| Size | 3 MB | 59 MB |
| Requires iOS | 17.2 | **16.0** |
| Devices | iPhone, iPad | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Guilherme Xavier](https://appshunter.io/developer/1884139112) | [The Musicology Group, Inc.](https://appshunter.io/developer/1061725506) |

## What reviewers say

### In Progress

[App page](https://appshunter.io/ios/app/in-progress-local-music/id6760368318)

This app consolidates all your audio files from various sources into one organized library. It offers advanced playback features, offline key detection, and transposition, with a focus on user ownership and privacy.

**Highlights:** Import audio from multiple sources, Organize with nested folders and playlists, Manual queue and playback controls, Offline key detection and transposition, A/B looping for producers, Share playlists offline via AirDrop

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### SynthStamp

[App page](https://appshunter.io/ios/app/synthstamp/id6760490718)

Explore vintage synthesizers with fully modeled engines and familiar interfaces. Patch, save, and share your creations across devices. Features real-time effects processing and models based on iconic hardware.

**Highlights:** Fully modeled vintage synth engines, Patchable semi-modular synthesizer, Circuit-bendable sampling keyboard, Real-time effects processing, Audio Unit (AUv3) plugin support, Cross-device preset sharing

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is In Progress free?

In Progress costs $1.99, with no in-app purchases.

### Is SynthStamp free?

SynthStamp costs $4.99, with no in-app purchases.

### Which has better reviews, In Progress or SynthStamp?

In Progress is rated higher. In Progress averages 5.0 out of 5 from 9 ratings, while SynthStamp averages 4.4 from 12 ratings.

### Do In Progress or SynthStamp have ads?

Neither In Progress nor SynthStamp shows ads.

### Which is updated more often, In Progress or SynthStamp?

In Progress ships an update every 5 days, and SynthStamp weekly. Most recently, In Progress was updated on October 28, 2026 and SynthStamp on October 25, 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.*