Side by side
OneSignal vs Stonly
Both stand on in app messaging. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan WebWindowsMac+2
OneSignal brings several messaging channels, segmentation and automation into one platform, with a free plan and month-to-month Growth option. Verify the applicable free email limit and usage fees before settling on a plan.
Visit OneSignal Free plan AndroidiPhoneWeb
Stonly combines interactive help content with knowledge management and AI Answers. Its trial rolls into Basic without a charge if the account is not upgraded, while guide-view limits and plan capacities are worth checking.
Visit StonlyThe facts
| OneSignal | Stonly | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | Web, Windows, Mac, iPhone, Android | Android, iPhone, Web |
| Lowest paid plan | Growth: $19 a month | Free or on request |
| Plans published | 4 | 3 |
| Maker | OneSignal | Stonly |
| Website | onesignal.com | stonly.com |
| On in app messaging | #1 of 21 | #2 of 21 |
OneSignal: what it does well
- Free plan includes basic automation and analytics.
- Supports push, email, in-app messaging, RCS and SMS.
- SDKs cover Android, iOS, Flutter, React Native, Expo and Unity.
- Message-delivery API sends are available across plans.
What to know first
- Growth has usage fees in addition to its platform fee.
- Professional and Enterprise require annual contracts.
- Free email limit is stated as both 10,000 and 20,000 monthly sends.
- Web push is limited to 10,000 subscribers per send.
Stonly: what it does well
- Guides offer step-by-step directions with user choices.
- No-code triggers embed guides in web and mobile apps.
- Knowledge base includes versioning and rights management.
- AI Answers can surface guides and support multi-step resolutions.
- Lists integrations with Zendesk, Salesforce, and Slack.
What to know first
- Basic lists one language and one team member.
- Basic includes 400 guide views per month.
- Two consecutive months above a view limit can trigger an upgrade.
Alternatives to OneSignal Alternatives to Stonly The whole list

