# Sightlines vs 2099 Techno

The clearest difference is price: 2099 Techno at Free against Sightlines's $7.99. 2099 Techno also leads on update cadence (every 2 days vs weekly). Sightlines's advantage is in-app purchases (none vs 1) and iOS requirement (13.0 vs 15.0). On ads and device support there is nothing between them.

2099 Techno is free to download; Sightlines costs $7.99 up front. 2099 Techno sells 1 one-off in-app purchase. Sightlines asks for nothing beyond the download.

Sightlines ships an update weekly, 2099 Techno every 2 days. The most recent releases landed on October 1, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Sightlines | 2099 Techno |
| --- | --- | --- |
| Price | $7.99 | **Free** |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/sightlines-harmonic-filter/id6801937031/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Weekly | **Every 2 days** |
| Monetization | Paid | — |
| Size | 19 MB | 15 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aqeel Aadam](https://appshunter.io/developer/1724235864) | [Soft Brew Mobile](https://appshunter.io/developer/561703410) |

## What reviewers say

### Sightlines

[App page](https://appshunter.io/ios/app/sightlines-harmonic-filter/id6801937031)

Shape sounds with a playable harmonic filter. Add motion, stereo spread, and unique textures to noise, samples, or synths. Tune it like a resonator or control it with MIDI for endless sonic possibilities.

**Highlights:** Harmonic filter bank, MIDI control, Sample loading, Noise and synth sound sources, Modulation capabilities, Built-in chorus, delay, and reverb

**Features:** Vision Pro support

**In-app purchases:** none


### 2099 Techno

[App page](https://appshunter.io/ios/app/2099-techno-generative-synth/id6806647424)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| AUv3 Unlock | $2.99 | one-time |


## Frequently asked questions

### Is Sightlines free?

Sightlines costs $7.99, with no in-app purchases.

### Is 2099 Techno free?

2099 Techno is free to download, with in-app purchases available.

### Do Sightlines or 2099 Techno have ads?

Neither Sightlines nor 2099 Techno shows ads.

### Which is updated more often, Sightlines or 2099 Techno?

Sightlines ships an update weekly, and 2099 Techno every 2 days. Most recently, Sightlines was updated on October 1, 2026 and 2099 Techno 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.*