C
by
Cindova Technologies
1 (0 reviews)
Cindova Phone OTP & SMS for Gravity Forms
Verify phone numbers with a Firebase one-time code in Gravity Forms, and send SMS and Slack notifications after submission.
Cindova Phone OTP & SMS for Gravity Forms ranks #67,599 among WordPress.org plugins with 1+ active installations, is #2,110 of 3,634 in the Communication category, a 1/5 rating from 0 reviews, and was last updated Oct 5, 2026. Data from WordPress.org, refreshed twice daily — see methodology.
Compatible with WP 7.1
v1.0.0
Current Version v1.0.0
Updated 1 month ago
Last Update on 05 Oct, 2026
Refreshed 1 week ago
Last Refreshed on
#2,110 of 3,634 in Communication
Rank
#67,599
—
No change
Active Installs
1+
-66.7%
KW Avg Position
112.5
0.5 worse
Downloads
354
+1 today
Support Resolved
0%
—
No change
Rating
20%
Review 1 out of 5
1
(0 reviews)
Next Milestone 10
0+
10+
54,662
Ranks to Climb
-
Growth Needed
8,000,000
Active Installs
Pro
Unlock Exact Install Count
See the precise estimated active installs for this plugin, calculated from real-time ranking data.
- Exact install estimates within tiers
- Track install growth over time
- Milestone progress predictions
Need 9 more installs to reach 10+
Rank Changes
Current
#67,599
Change
Best
#
Downloads Growth
Downloads
Growth
Peak
Upgrade to Pro
Unlock 30-day, 90-day, and yearly download history charts with a Pro subscription.
Upgrade NowReviews & Ratings
1.0
0 reviews
Overall
20%
5
0
(0%)
4
0
(0%)
3
0
(0%)
2
0
(0%)
1
0
(0%)
Track This Plugin
Get detailed analytics, keyword tracking, and position alerts delivered to your inbox.
Start Tracking FreePlugin Details
- Version
- 1.0.0
- Last Updated
- Oct 05, 2026
- Requires WP
- 6.5+
- Tested Up To
- 7.1
- PHP Version
- 7.4 or higher
- Author
- Cindova Technologies
Support & Rating
- Rating
- ★ ☆ ☆ ☆ ☆ 1
- Reviews
- 0
- Support Threads
- 0
- Resolved
- 0%
Keywords
Upgrade to Pro
Unlock keyword rankings, search positions, and detailed analytics with a Pro subscription.
Upgrade NowSimilar Plugins
Adminify – White Label, Admin Menu Editor, Login Customizer
6K+ installs
#2,757
Master Addons for Elementor – Elementor Addons, Widgets, Mega Menu Builder, Popup Builder, Widget Builder & Template Kits
30K+ installs
#1,015
Contact Form 7
10M+ installs
#3
WP Mail SMTP by WPForms – SMTP for Reliable Email Delivery with Gmail, Outlook, Amazon SES, Brevo, Other SMTP & More
4M+ installs
#12
MC4WP: Mailchimp for WordPress
1M+ installs
#35
Hostinger Reach – AI-Powered Email Marketing for WordPress
1M+ installs
#41
Popup Builder & Popup Maker for WordPress – OptinMonster Email Marketing and Lead Generation
1M+ installs
#53
Flamingo
800K+ installs
#79
FluentSMTP – WP Mail SMTP Plugin with Amazon SES, SendGrid, Mailgun, Postmark, Cloudflare, toSend, Gmail and Any SMTP
700K+ installs
#87
Joinchat – Enhanced “click to chat”
700K+ installs
#89
Frequently Asked Questions
Common questions about Cindova Phone OTP & SMS for Gravity Forms
No. Gravity Forms 2.5 or later is required.
Firebase Authentication has a free tier, but sending SMS for phone sign-in requires the Blaze (pay as you go) plan. Check Google's current pricing.
Not from the browser. The server verifies the Firebase ID token during Gravity Forms validation, including on the final page of multi-page forms. If the token is missing, invalid, expired, already used or for a different phone number, the form shows a field error and is not submitted. The check is enforced even if the OTP field is hidden by conditional logic.
Yes.
The Gravity Forms Phone field's "Standard" format only accepts US numbers in (###) ###-#### form. Change the field's Phone Format to "International" so visitors can enter numbers such as +14155552671.
Yes. The OTP field itself can be hidden or shown by conditional logic without weakening verification: the server always requires a valid token whenever the phone field is visible. If the phone field is hidden by conditional logic (including by a hidden page or section), no phone number is collected, so verification is skipped.
Gravity Forms stores plugin settings in the WordPress options table as plain text. To encrypt them at rest, define the GF_ENCRYPTION_KEY constant in wp-config.php (see the Gravity Forms documentation); Gravity Forms then encrypts the stored settings. The settings screens never print a saved secret: a saved Auth Key or token shows only a "A value is saved" note, leaving the field blank keeps it, and the "Remove the saved value" checkbox clears it.
Yes. Each SMS or Slack notification is a feed, and each feed has its own message and its own conditional logic ("Send this notification if ..."). Feeds are skipped for spam entries. Failed notifications are written to the entry notes and, if you turn on Gravity Forms logging (Forms > Settings > Logging), to the Gravity Forms log for this plugin.
{{field_ID}} and {{field_ID.SUBID}}, where ID is the Gravity Forms field ID and SUBID is the input ID for multi-input fields such as Name. You can also use Gravity Forms merge tags such as {Name:1}, {Phone:3}, {entry_id} or {all_fields}. Merge tags are not replaced in the test message, because a test has no entry; they are sent as written.
Three things help: (1) set the SMS region policy in the Firebase console (Authentication → Settings → SMS region policy) to allow only the countries you serve; (2) optionally enable Firebase App Check by entering a reCAPTCHA site key under App Check on the Forms > Settings > Phone OTP page (register the key in the Firebase console first, and test with enforcement in monitor mode, because a wrong key with enforcement on rejects every OTP request); (3) keep the Firebase SMS quotas and billing budget alerts at low values.
