# FastCaller vs Diamy

The clearest difference is in-app purchases: Diamy at none against FastCaller's 4. Diamy also leads on ads (none vs shown) and device support (4 vs 2). FastCaller's advantage is update cadence (every 2 months vs every 10 months). On price and iOS requirement there is nothing between them.

Both are free to download. FastCaller sells 4 in-app purchases, starting at $0.99 per month. Diamy asks for nothing beyond the download.

FastCaller ships an update every 2 months, Diamy every 10 months. The most recent releases landed on November 2, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | FastCaller | Diamy |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (18 ratings)](https://appshunter.io/ios/app/fastcaller/id1437799631/reviews)** | — |
| Number of ratings | **18** | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 10 months |
| Monetization | Free with in-app purchases | — |
| Size | 40 MB | 51 MB |
| Requires iOS | 15.6 | **15.1** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Roman Bekas](https://appshunter.io/developer/904431721) | [W3TEL](https://appshunter.io/developer/1817054137) |

## What reviewers say

### FastCaller

[App page](https://appshunter.io/ios/app/fastcaller/id1437799631)

This app offers a smart T9 dialer for instant contact search. Quickly find and call contacts with minimal taps by typing any part of their name or number. It features a clean interface and supports multiple languages for efficient communication.

**Highlights:** Smart T9 keyboard for contact search, Search by name or number (partial), Multi-language support, Quick call via long-press, Recent calls prioritized, Clean and simple interface

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| No ADs & Quick Dial monthly | $0.99 | per month |
| No ADs & Speed Dial yearly | $9.99 | per year |
| Remove Ads | $0.99 | one-time |
| Unlock Quick Dial | $0.99 | one-time |


### Diamy

[App page](https://appshunter.io/ios/app/diamy/id6746461835)

**In-app purchases:** none


## Frequently asked questions

### Is FastCaller free?

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

### Is Diamy free?

Diamy is free to download, with no in-app purchases.

### Do FastCaller or Diamy have ads?

FastCaller shows ads; Diamy does not.

### Which is updated more often, FastCaller or Diamy?

FastCaller ships an update every 2 months, and Diamy every 10 months. Most recently, FastCaller was updated on November 2, 2026 and Diamy on October 30, 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.*