Overdrive Special vs metrOnly
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Overdrive Special
This guitar amplifier plugin emulates a classic Dumble schematic, offering clean and cascading overdrive channels. It features a 3-band EQ, individual gain controls, and a built-in noise gate. Works as a standalone app or audio effect.
- Clean and overdrive channels
- Cascading gain stages
- 3-band equalizer
- Individual gain controls per channel
- Harmonic gain change
- Noise gate circuit
- Standalone, AUv3, and IAA support
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Nembrini Audio Overdrive Special Guitar Amplifier plugin is based on a Overdrive Special By Dumble* schematic #124. Nembrini Audio Overdrive Special s a two channel amplifier, which includes a clean channel and an “overdrive”channel. The overdrive channel is described as “cascading” from the first channel into, at least, one additional gain stage in the overdrive channel. This means that the clean channel’s tone stack and gain stages will “cascade” into the gain stage of the overdrive channel, causing the clean channel to become “overdriven". Nembrini Audio Overdrive Special features a 3-band equalizer and one volume control for both channels, but each channel has its own gain control. The gain controls LEVEL and RATIO interact when the overdrive channel is engaged to allow a harmonic change in gain. The Overdrive Special guitar amplifier plugin includes a complete recording chain emulation and our custom design noise gate circuit. Works as a standalone app, AudioUnit v3 effect, or Inter-App Audio effect Legal Disclaimer: Overdrive Special By Dumble is a registered trademark of Dumble. Nembrini Audio Overdrive Special was developed by Nembrini Audio SRL based on its own modelling techniques. Dumble has not endorsed nor sponsored the Nembrini Audio Overdrive Special in any manner, nor licensed any intellectual property for use in this product.
metrOnly
This metronome app provides perfectly timed clicks without distracting features like accents or blinking lights. It offers tempo adjustments from 10-500 bpm and includes accessibility options for ease of use. Designed for focused practice, it aims to be a simple and effective tool for musicians.
- Perfectly timed clicks
- No distracting features
- Tempo range 10-500 bpm
- Intuitive tempo adjustment
- Accessibility options
- Customization features
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A metronome for musicians who hear better when the screen is quiet. metrOnly gives you precise time without accents, flashing lights, time signatures, or menus competing for your attention. Drag anywhere to change tempo from 10 to 500 BPM. Feel each number click into place. Tap the tempo to enter an exact value. Press one button to start. Choose from 19 carefully prepared click sounds, including woodblocks, sticks, rims, hats, snaps, and percussion. Set an optional practice timer, keep the click running in the background, and focus on the music. No clutter. Just time. New users need an auto-renewing subscription after onboarding. Weekly, monthly, and annual plans are available. Eligible customers can try the annual plan free for 7 days. Subscriptions renew automatically unless canceled at least 24 hours before the current period ends. Manage or cancel your subscription in Apple Account settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.sprinworld.com/privacy
Screenshots
Verdict
The clearest difference is price: metrOnly at Free against Overdrive Special's $19.99. Overdrive Special's advantage is rating (4.3 vs 4.0) and iOS requirement (15 vs 18.0). On ratings volume, update cadence, 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
metrOnly is free to download; Overdrive Special costs $19.99 up front. Neither carries in-app purchases, so what you see is what you pay.
Overdrive Special holds the better App Store score, 4.3 against 4.0. Both are backed by a comparable volume of ratings — 8 and 4 respectively.
Overdrive Special ships an update every 26 months, metrOnly every 20 months. Both last shipped on October 24, 2026.
| Parameter | Overdrive Special | metrOnly |
|---|---|---|
| Price | $19.99 | Free — better |
| Rating | 4.3 (8 ratings) — better | 4.0 (4 ratings) |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 8 — better | 4 |
| Update frequency | Every 26 months | Every 20 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15 — better | 18.0 |
| Further details — not scored | ||
| Size | 41 MB | 2 MB |
| Age rating | 4+ | 4+ |
| Developer | Nembrini Audio | Austin Danson |
Customer experience
Overdrive Special
metrOnly
In-app purchases
Overdrive Special
No in-app purchases
metrOnly
No in-app purchases









