Rakib

To avoid plugin territory warning for CPT and Meta Boxes, This is a great choice for you. Violet Custom Post Meta adds necessary CPT, Meta, Texonomy to develop awesome portfolio theme.
Post Types:
<ul>
<li>services</li>
<li>skill</li>
<li>portfolio</li>
<li>testimonial</li>
<li>team</li>
<li>partner</li>
</ul>
Note that this plugin function can be modify as your choice by filter Hooks.
Hook Lists :
<pre><code>vcpm_{post_type}_params //to modify post type args.
vcpm_portfolio_category_params //to modify portfolio texonomy.
vcpm_meta_fields_{post_type} //provides ability to add, remove, modify meta fields.
vcpm_meta_box //Provides ability to create, delete and modify meta box.
vcpm_meta_fields_control //Fields styte, presentation can be modify.
</code></pre>

Violet Custom Post Meta

Plugin for Theme developers, Who wants to build portfolio themes rapidly.

Tran Ngoc Tuan Anh

eLightUp

Meta Box

This tool helps you migrate custom fields from Advanced Custom Fields (ACF) to Meta Box.
Meta Box is a powerful, professional, and lightweight toolkit for developers to create custom meta boxes and custom fields for any custom post type in WordPress.
<blockquote>
Meta Box Lite 
 We recommend using <a href="https://metabox.io/lite/" rel="nofollow ugc">Meta Box Lite</a>, a feature-rich free UI version of Meta Box that provides UI and all free features for managing custom fields and dynamic content on WordPress, including post types, taxonomies, custom fields, and relationships.
</blockquote>
Switching from ACF to Meta Box gives you lots of benefits:
<ul>
<li>A wide-range of field types and options. Meta Box supports <a href="https://docs.metabox.io/field-settings/" rel="nofollow ugc">40+ built-in WordPress custom field types</a> for all your needs. You can also <a href="https://docs.metabox.io/custom-field-type/" rel="nofollow ugc">effortlessly create your own field type</a>.</li>
<li>Meta Box supports cloning fields for most field types including the WYSIWYG editor field. It also supports <a href="https://metabox.io/plugins/meta-box-group/" rel="nofollow ugc">repeatable field groups</a>.</li>
<li>Meta Box has an ultra-lightweight, yet powerful API that won’t overload your site.</li>
<li>Meta Box uses the <a href="https://docs.metabox.io/database/" rel="nofollow ugc">native WordPress meta data storage</a> and functions for ease of use and lightning-fast processing.</li>
<li>Meta Box has a ton of <a href="https://metabox.io/plugins/" rel="nofollow ugc">free and premium extensions</a> available to further extend the already powerful core Meta Box plugin so you can supercharge your custom fields in WordPress.</li>
</ul>
See more details at the <a href="https://metabox.io/meta-box-vs-acf/" rel="nofollow ugc">comparison page between ACF and Meta Box</a>.
<h3>You might also like</h3>
If you like this plugin, you might also like our other WordPress products:
<ul>
<li><a href="https://wpslimseo.com" rel="nofollow ugc">Slim SEO</a> – A fast, lightweight and full-featured SEO plugin for WordPress with minimal configuration.</li>
<li><a href="https://gretathemes.com" rel="nofollow ugc">GretaThemes</a> – Free and premium WordPress themes that clean, simple and just work.</li>
</ul>

MB ACF Migration

Migrate custom fields from Advanced Custom Fields to Meta Box.

Violet Custom Post Meta vs MB ACF Migration