Arpie vs naive tracker
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Arpie
This app transforms bouncing balls into a musical experience. Place balls of varying heights to create unique melodies and rhythms. It's an intuitive way for anyone to explore music creation.
- Bouncing ball music generation
- Adjustable ball height for melody
- Create musical sequences
- Intuitive music creation
- Variety of musical patterns
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Bouncing balls turn into music! Arpie is a novel musical app that allows anyone to enjoy music. Put balls as many as you like, them watch them playing a beautiful melody. Higher balls hit the keys with long pauses, and lower ones hit them fast and repeatedly. By combining them, you can easily create a wide variety of musical sequences.
naive tracker
A minimalist 4-track sampler and sequencer designed for touchscreens. It offers a single-screen editor for fast workflow, with features like sample editing, live pattern switching, and Ableton Link synchronization. Export your creations as WAV files.
- Single screen editor
- 4-track sampler/sequencer
- Sample browser and editor
- Live pattern switching
- Ableton Link synchronization
- WAV file export
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4-track sampler / sequencer Naive tracker is a modern, minimalistic implementation of the vertical sequencer concept known as "tracker", designed specifically for small screens with touch interface and optimized for a fast and easy workflow. - single screen editor: immediate access to everything - sleek monochrome UI - ready to use: comes with a collection of synthetic lo-fi and acoustic instrument samples - sample browser: load / play samples super fast from anywhere in the file system - record samples - sample editor: select, trim, normalise, reverse or draw the raw wave form - random: shuffle parameters for new inspriration - pattern list: switch patterns live, chain patterns in a loop or arrange a song - export / re-sample: save complete songs as wav file - Ableton Link: plays in sync with any Link enabled app/device The two-dimensional note editing with instant transpose function enables a clear and compact sequencer where everything happens in a single layer. Patterns can be selected manually, play as looped range or in linear order so that the pattern column is suited for live performance as well as song arrangement. The 16-step sequencer grid may be extended with meta step, variable track length or by looping a chain of patterns. Specs - 4 tracks - 16-step sequencer with variable track length - 8 samples, max. 2.7 sec. each - 16 patterns - 256 patterns song length Sequencer parameters - note value (octave / semitone) - pitch envelope - pitch LFO - AD / gate / D envelope - volume / panning - offset / loop length - filter high / low pass - meta (play steps conditionally) No in-app-purchases, no subscription, no ads, no AI.
Screenshots
Verdict
The clearest difference is price: Arpie at Free against naive tracker's $3.99. Arpie also leads on iOS requirement (11.0 vs 15.6). naive tracker's advantage is rating (5.0 vs 4.5) and update cadence (every 2 weeks vs every 97 months). On review sentiment, ratings volume, 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
Arpie is free to download; naive tracker costs $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.
naive tracker holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 10 and 7 respectively. Written reviews point the same way: 93% of Arpie's written reviews are positive against 100% of naive tracker's.
Arpie ships an update every 97 months, naive tracker every 2 weeks. The most recent releases landed on October 19, 2026 and October 9, 2026 respectively.
| Parameter | Arpie | naive tracker |
|---|---|---|
| Price | Free — better | $3.99 |
| Rating | 4.5 (10 ratings) | 5.0 (7 ratings) — better |
| Positive reviews | 92.5% of reviews | 100.0% of reviews — better |
| Number of ratings | 10 — better | 7 |
| Update frequency | Every 97 months | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 11.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 25 MB | 22 MB |
| Age rating | 4+ | 4+ |
| Developer | Keijiro Takahashi | Oliver Wittchow |
Customer experience
Arpie
naive tracker
In-app purchases
Arpie
No in-app purchases
naive tracker
No in-app purchases









