Percent Calculator vs fonio.ai
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Percent Calculator
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The three percentage operations you keep forgetting: X% of Y, X is what % of Y, X increased or decreased by Y%. • Three modes covering 95% of needs • Big tappable result for sharing • 5 more modes in Pro: difference, compound, reverse-discount • History with copy-as-formula (Pro) • Tip calculator built in Who it's for For anyone reading a sale tag, splitting a tip, calculating a discount or a markup. One-Time Unlock Premium is a one-time Lifetime purchase — there is no subscription and nothing auto-renews. Pay once and unlock every premium feature forever. Payment is charged to your Apple ID at confirmation, and you can restore it anytime. Privacy: everything stays on your device by default. No analytics SDKs, no cross-app tracking. Privacy policy at https://bestpaid.app/legal/privacy. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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 in-app purchases: fonio.ai at none against Percent Calculator's 1. fonio.ai also leads on ads (none vs shown) and update cadence (every 2 days vs every 5 weeks). On price, device support and iOS requirement 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. Percent Calculator sells 1 one-off in-app purchase. fonio.ai asks for nothing beyond the download.
Percent Calculator ships an update every 5 weeks, fonio.ai every 2 days. The most recent releases landed on September 8, 2026 and September 20, 2026 respectively.
| Parameter | Percent Calculator | 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 weeks | Every 2 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | — | Free |
| Devices | iPhone | iPhone |
| Requires iOS | 17.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 45 MB | 60 MB |
| Age rating | 4+ | 17+ |
| Developer | Vasilii Polovnikov | fonio GmbH |
In-app purchases
Percent Calculator
- Premium · Lifetime$7.99
fonio.ai
No in-app purchases









