Oslyn Tabs vs fonio.ai
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Oslyn Tabs
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Are you a musician who wants to jam with friends, but don't have the time to learn the songs? Need a chord sheet thats synchronized with your buddies? Try this App! Chord sheets are displayed like a powerpoint slide, so that bands can stay on the same page (literally). Key Features: - Easily create a Setlist for your band to play. (via the web extension & website) - Synchronized chord sheet & song selection. - Synchronized key changes. - Capo - that only affects you. - Choice to SIMPLIFY chords (for beginners, removing dim7s, augmented 5ths etc.) - Text size, dark mode, etc.
fonio.ai
This app allows users to make and receive business calls using their existing Fonio phone numbers. It provides features like selecting outgoing caller ID, viewing call history, and searching contacts. An active Fonio business account and internet connection are required for use.
- Make and answer business calls
- Select outgoing caller ID
- View call history
- Search and call contacts
- Manage Fonio phone numbers
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Fonio keeps your business calling with you. Sign in with your existing Fonio account to make and receive calls through your Fonio phone numbers. With Fonio you can: • Make and answer business calls • Choose the Fonio number shown for outgoing calls • View recent incoming and outgoing calls • Search and call Fonio contacts, phone contacts, and teammates Requirements: • An existing Fonio business account and internet connection are required Fonio is designed for business use. Availability of phone numbers and features depends on your Fonio account and device. https://www.fonio.ai/en/terms-and-conditions
Screenshots
Verdict
The clearest difference is device support: Oslyn Tabs at 3 against fonio.ai's 1. On price, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Oslyn Tabs ships an update every 5 days, fonio.ai every 3 days. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.
| Parameter | Oslyn Tabs | fonio.ai |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 5 days | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 15.6 — better | 16.4 |
| Further details — not scored | ||
| Size | 26 MB | 64 MB |
| Age rating | 17+ | 17+ |
| Developer | Dominic Fung | fonio GmbH |
In-app purchases
Oslyn Tabs
No in-app purchases
fonio.ai
No in-app purchases









