Side by side
123apps vs Form.io
Both stand on online form builders. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Choose 123apps if you want a web-based collection spanning video, audio, PDF, and conversion tasks, with a free plan to start. Look elsewhere if your workflow requires more than 4 GB per file on the listed Premium plans or needs Remove Logo, which is currently available only on desktop computers.
Visit 123appsChoose Form.io if your team needs configurable forms and APIs that can be rendered in applications or deployed in a customer controlled environment. The main reason to look elsewhere is the SaaS trial’s sensitive data restriction or the need for a formal compliance certification; Form.io states its security features do not provide one.
Visit Form.ioThe facts
| 123apps | Form.io | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Web | API, Self-hosted, Web |
| Lowest paid plan | Premium monthly: 4.90 CHF a month | Developer Licenses (5 licenses): $2,640 a year |
| Plans published | 4 | 14 |
| Maker | Not published | Form.io |
| Website | 123apps.com | form.io |
| On online form builders | #3 of 39 | #7 of 39 |
123apps: what it does well
- Catalog includes video, audio, PDF, and conversion tools.
- Free and Premium plans list 51 tools.
- Google Drive and Dropbox uploads are supported.
- Processing is automated without human interaction or supervision.
- The site says submitted data is deleted within 12 hours after use.
What to know first
- Free plan allows five files per day.
- Free plan maximum file size is 500 MB and includes ads.
- Premium plan maximum file size is 4 GB.
- Remove Logo is available only on desktop computers.
Form.io: what it does well
- Build forms and APIs with a drag and drop interface.
- Render JSON schema forms with React, Angular, or Vue.
- Support conditional logic, multi step wizards, and form actions.
- Collect data offline and sync it when connected.
- Connect form actions to Google Sheets and webhooks.
What to know first
- The SaaS trial becomes read only unless continued at $300 per month.
- The trial excludes some compliance features and bars sensitive data collection.
- API Plus security capabilities do not certify applications for compliance frameworks.
Alternatives to 123apps Alternatives to Form.io The whole list

