Podio

It's a business social network, with a live activity stream of what everyone's working on, individual and team chat, and workspaces to keep everything organized. And, it also includes hundreds of pre-made apps to manage everything—project, accounting, marketing, news, files, and so much more—along with a simple app builder to make anything you want.

Price: Free for up to 5 users; from $9/user/month Basic plan with most features

Skill Level: Beginner—simple to use, but needs to be used with other Podio apps to get most benefit

Transpose

For custom apps that work even when you're offline, Transpose is an app builder that pulls in features from mobile data collection apps. You'll build apps in your browser with form fields, linking fields to create a relational database and pulling in documents, images, and locations for a full-featured experience. Then, you can visualize your items in table, calendar, card, or kanban views, or download individual records in PDF format.

Price: From $9.99/month for unlimited apps with core features
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Skill Level: Beginner—easy to get started with pre-made solutions or form builder.

Zengine

The first thing you'll think about with a new app is the data it needs to collect—something you'd likely gather in a form. Zengine starts right at the basic, having you build forms for your app that it then turns into a database. It's as simple to use as a form builder app, with a drag-and-drop interface to add text, number, date and other fields to your forms, each with advanced options if you want to, say, limit a text field or validate data.

You'll never haver to worry about how the database itself works, as Zengine will create it for you automatically based on your form fields.

Price: From $79/month for core plugins, 20k records, and 5 users
Skill Level: Beginner—easy to use, with advanced features for power users.

Bibliography

• https://zapier.com/learn/ultimate-guide-to-forms-and-surveys/simple-databas...
• https://zapier.com/learn/ultimate-guide-to-forms-and-surveys/simple-databas...
• https://zapier.com/learn/ultimate-guide-to-forms-and-surveys/simple-databas...