# Numero CallTime vs Slicker App

The clearest difference is update cadence: Slicker App at weekly against Numero CallTime's every 4 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Numero CallTime ships an update every 4 months, Slicker App weekly. The most recent releases landed on October 5, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Numero CallTime | Slicker App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (16 ratings)](https://appshunter.io/ios/app/numero-calltime/id1545066954/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | Free | — |
| Size | 63 MB | 26 MB |
| Requires iOS | 16.4 | **15.1** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [NUMERO, INC.](https://appshunter.io/developer/1545066956) | [TECHIEBUTLER TECHNOLOGIES PRIVATE LIMITED](https://appshunter.io/developer/1809913666) |

## What reviewers say

### Numero CallTime

[App page](https://appshunter.io/ios/app/numero-calltime/id1545066954)

This app helps manage fundraising campaigns by providing contact information, interaction history, and communication tools. It allows users to easily call, text, or email contacts, log interactions, and track progress on tasks and lists.

**Highlights:** Manage fundraising campaigns, Access real-time contact information, Log calls, notes, and contact details, Track progress on lists and tasks, One-click text and email templates, Search entire Donor CRM

**Features:** macOS Compatibility

**In-app purchases:** none


### Slicker App

[App page](https://appshunter.io/ios/app/slicker-app/id6748019551)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Numero CallTime free?

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

### Is Slicker App free?

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

### Do Numero CallTime or Slicker App have ads?

Neither Numero CallTime nor Slicker App shows ads.

### Which is updated more often, Numero CallTime or Slicker App?

Numero CallTime ships an update every 4 months, and Slicker App weekly. Most recently, Numero CallTime was updated on October 5, 2026 and Slicker App on October 1, 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.*